Microwave networks CM7 User Manual

100base-t digital microwave radio

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CM7/8

100Base-T

Digital Microwave Radio

System User's Manual

Site____________________

Part Number 8821607-00

Rev. E

Issued: 5/05

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Page 1 CM7/8 100Base-T Digital Microwave Radio System User’s Manual Site____________________ Part Number 8821607-00 Rev. E Issued: 5/05...
Page 3: Chapter 1-General Information
CM7/8 100Base-T Manual Revision History Section Changed Pages Changed Revision A – Initial Release Revision B - 8/03 Front Matter cover, history, contents Chapter 1, General Information 1-2, 1-8, 1-10, 1-11, 1-12 Chapter 2, Principles of Operation 2-2, 2-4, 2-15, 2-16...
Page 4 Page iv 5/04/05 CM7/8 100Base-T System User’s Manual...
Page 5: Using This Manual
Using This Manual Introduction Welcome to the CM7/8 100Base-T System User’s Manual. Use this section as a short guide of the organization of information in this manual. Use the Table of Contents for further detail. Manual Organization Apart from this, manual chapters and sections include the following: —describes common terms and acronyms used in this manual.
Page 6: Quick Reference
How to check the alarm log How to check performance values How to establish RF loopback How to check receive threshold How to check Tx fade margin How to add NMU How to add SNMP management App. F Page vi CM7/8 100Base-T System User’s Manual...
Page 7 Commercial Warranty Microwave Networks, Inc. (MNI) manufactured products are warranted to be free from defect in material and workmanship for a period of two (2) years from date of shipment. In the event of a defect during the warranty period, Buyer will return item to the MNI depot repair facility for repair or replacement.
Page 8 Where you can find us Company Headquarters: Microwave Networks 4000 Greenbriar Stafford, TX 77477 Tel 281.263.6500 Fax 281.263.6400 Toll free in US 1.888.225.6429 Internet: www.microwavenetworks.com 24-Hour Customer Service Hotline Tel 281.263.6501 Toll free in US 1.888.225.4762 International London Tel 44.1628.788383...
Page 9 Glossary ACO — Alarm Cut Off. ACU — Alarm and Control Unit. A/D or ADC — Analog-to-Digital Converter. AGC — Automatic Gain Control. AIS — Alarm Indication Signal (all “1” bit pattern). ALBO — Automatic Line Build Out. ALC — Automatic Level Control. ALM —...
Page 10 Glossary CCITT — International Telegraph and Telephone Consultative Committee. C/I — Carrier-to-Interference Ratio. CLK — Clock. Codec — Coder/Decoder. Co-located — located in the same rack, as in two CM radios. Constellation — The totality of possible signal states used by the modem to send level information. Each point comprising the pattern is described by I and Q coordinates.
Page 11 Microwave Networks EMI — Electromagnetic Interference. ENC — Encoder. ES — Error Second. ESD — Electrostatic Discharge. FE — Framing Error. FEC — Forward Error Correction. FEC Gap — Frame gap that coincides with FEC parity bit times. FER — Frame Error Rate.
Page 12 Glossary HP — Hop Parity. HS — Hot Standby Transmitter/Space Diversity Receiver. H/W —Hardware. IF — Intermediate Frequency (70 MHz). IFP — Interface Panel. In-Service — System carries live traffic. INT — Interference. I/P or IN — Input. ISI — Inter-symbol Interference. LBO —...
Page 13 Microwave Networks MOD — Modulator (plug-in module). Modem — Modulator/Demodulator. MTBF — Mean Time Between Failure. MTTR — Mean Time to Repair. Multipath — Dynamic linear distortion characterized by notches and/or slope in the channel frequency response. The phenomena is caused by multiple independent propagation paths connecting transmitter and receiver.
Page 14 Glossary PLD — Programmable Logic Device. PLL — Phase Lock Loop. PLO — Phase Lock Oscillator. PRBS — Pseudorandom Bit Sequence. P/S — Parallel-to-Serial (Data Stream Conversion). PSF — Previous Section Fail. PSU (RF) — RF Power Supply Unit (plug-in module). PSU (SP) —...
Page 15 Microwave Networks SPS — Signal Processing Shelf. SR — Stuff Request. SS — Space Diversity Transmitter/Space Diversity Receiver. S/W — Software. SWR — Switching Request. SYM — Symbol. Symbol Rate or Frequency (fs) —The rate (frequency) at which symbols are generated. Since symbols represent any of 3, 5, or 7 bits (for 8, 32, and 128 QAM respectively), the system bit rate is 3, 5, or 7 times higher than the symbol rate.
Page 16 Glossary Page xvi CM System Users Manual...
Page 17: Table Of Contents
Switching Transmit Paths Manually..................2-12 Receive Switching ..........................2-12 Receiver RXU-DEMOD Switch ....................2-12 Receiver SYNDES-MUX Switch Level..................2-12 Receiver SCU Switch ........................ 2-13 Receive WTU Switch ........................ 2-13 Diversity Switching .......................... 2-13 CM7/8 100Base-T System User’s Manual Page xvii...
Page 18 Functional Description ........................... 3-3-2 TX Features ............................3-3-3 Setting TXU Boards ..........................3-3-4 Alarm/Control Board........................3-3-4 TX IF BPF/LO..........................3-3-4 Section 3-4–Receiver Unit (RXU) Introduction ............................3-4-1 General Information ..........................3-4-1 Introduction ............................3-3-1 CM7/8 100Base-T System User’s Manual Page xviii...
Page 19 Section 3-10–Multiplexer (MUX) Introduction ............................3-10-1 General Information ..........................3-10-1 Functional Description ......................... 3-10-2 MUX Features ............................3-10-3 Setting the MUX Board........................3-10-4 Section 3-11–Synchronizer/Desynchronizer (SYNDES) Introduction ............................3-11-1 General Information ..........................3-11-1 CM7/8 100Base-T System User’s Manual Page xix...
Page 20 Preparing the Site..........................4-1 Unpacking Equipment ........................4-4 Installing the Equipment Rack ........................4-4 Grounding the Rack..........................4-6 DC Power Cables..........................4-7 Verifying DC Cabling ........................4-7 Cabling the Access Panel .......................... 4-8 CM7/8 100Base-T System User’s Manual Page xx...
Page 21 Repair/Exchange Service........................6-1 Technical Support..........................6-3 Recommended Test Equipment......................... 6-3 Local Maintenance ..........................6-4 Maintenance Procedures..........................6-4 Transmitter Tests ..........................6-4 DC Voltage Tests..........................6-5 Troubleshooting Procedures........................6-6 Checking LEDs........................... 6-6 Checking the ACU..........................6-7 CM7/8 100Base-T System User’s Manual Page xxi...
Page 22 Screen Menu Flowcharts .......................... B-7 Local Maintenance Screens ........................B-9 Appendix C–Configuration Tables Introduction .............................. C-1 Appendix D–Alarm Codes Introduction .............................. D-1 Appendix E–Setting Frequency Switches Introduction ............................... E-1 CM7 Switch Settings..........................E-1 CM8 Switch Settings..........................E-5 CM7/8 100Base-T System User’s Manual Page xxii...
Page 23 MIB Tables ..........................F-10 Performance Table........................F-11 Configuration Table........................F-12 Fault Manager Table........................F-12 CM SNMP Traps ........................F-13 Diagnostics ..........................F-13 Telnet ..............................F-14 Telnet Commands ........................F-15 Telnet Command Usage ......................F-16 Index CM7/8 100Base-T System User’s Manual Page xxiii...
Page 24 Microwave Networks CM7/8 100Base-T System User’s Manual Page xxiv...
Page 25 Figure 1-3. Typical Single-Hop Configuration..............1-5 Figure 1-4. Multi-Hop Configuration................. 1-5 Figure 1-5. CM7/8 100Base-T Radio in Hot-Standby Configuration ........ 1-7 Chapter 2–Principles of Operation Figure 2-1. RF Shelf; Hot-Standby TX/RX and Hot-Standby TX/Space Diversity RX ..2-3 Figure 2-2.
Page 26 Figure 3-11-4. Switch Locations for SYNDES Module ............. 3-11-5 Section 3-12–Service Channel Unit (SCU) Figure 3-12-1. Service Channel Unit .................. 3-12-1 Figure 3-12-2. SCU Block Diagram ................... 3-12-2 Figure 3-12-3. SCU Features ....................3-12-3 CM7/8 100Base-T System User’s Manual Page xxvi...
Page 27 Figure 5-5. SP NS Configuration..................5-5 Figure 5-6. RF NS Configuration ..................5-5 Figure 5-7. SP NN Configuration..................5-6 Figure 5-8. RF NN Configuration ..................5-6 Figure 5-9. IF and RF Cabling.................... 5-7 CM7/8 100Base-T System User’s Manual Page xxvii...
Page 28 Appendix A–T/I Curves Figure A-1. CM7 CW Interference Curve, SP TXU, APC Off.......... A-2 Figure A-2. CM7 CW Interference Curve, SP TXU, APC On .......... A-2 Figure A-3. CM8 CW Interference Curve, DHP TXU, APC Off ........A-3 Figure A-4.
Page 29 List of Tables Chapter 1–General Information Table 1-A. MDI and MDI-X Port Pin Connections..............1-4 Table 1-B. CM7/8 100Base-T Radio Sections and Modules............1-7 Table 1-C. CM7/8 100Base-T Radio Specifications ..............1-10 Table 1-D. General Specifications ..................... 1-11 Chapter 2–Principles of Operation Table 2-A.
Page 30 Table 4-I. Network Port Connections ..................4-13 Table 4-J. Local Access Port ....................4-16 Table 4-K. Modem Communication Requirements ..............4-19 Table 4-L. DTE-to-DCE Cable Connections................4-19 Table 4-M. DTE-to-DTE Cable Connections ................4-19 CM7/8 100Base-T System User’s Manual Page xxxii...
Page 31 MLN7329 (E1) WTU Jumper Settings..............C-7 Table C-V. MLN7329 (E1) WTU Switch Settings ..............C-8 Table C-W. NMU Jumper Settings....................C-8 Table C-X. NMU Switch S1 Settings ..................C-8 Table C-Y. NMU Switch S2 Settings ..................C-8 CM7/8 100Base-T System User’s Manual Page xxxiii...
Page 32 Alarm Codes ......................D-1 Appendix E–Setting Frequency Switches Table E-A. Synthesizer Oscillator Frequency Ranges..............E-1 Table E-B. CM7 Synthesizer Switch Settings in 20-MHz Increments ........E-3 Table E-C. CM7 Switch Settings, 2 MHz Increments ..............E-4 Table E-D. 7-GHz Synthesizer Frequency Bands ................E-5 Table E-E.
Page 33 Chapter 1 General Information Introduction The CM7/8 100Base-T digital microwave radio provides wireless transmission of IP network communications. The system is a 155.52-Mbps transport radio that supports up to two 100/10Base-T Ethernet channels and a single digital data channel at DS3 (45Mbps) or E3 (34Mbps) in a 30-MHz bandwidth.
Page 34: Radio Features
General Information Radio Features The CM7/8 100Base-T radio delivers as much as 101.5 dB of system gain (at 10-3 BER). A fundamental feature of the CM radio is that the configuration, capacity and protection scheme, can be upgraded in the field.
Page 35: Ip Protocol And Ds3/E3 Data Transfer
RF data being transmitted from a far-end 100Base-T radio, the near-end radio first receives, demodulates, and demultiplexes the data before applying it to the near-end Ethernet switches. Data packets then go to customer equipment by way of LAN lines A and B. CM7/8 100Base-T System User’s Manual 8/12/03 Page 1-3...
Page 36: Radio Network Configuration
LAN B2 over the RF link. As Figure 1-4 shows, each radio processes IP and DS3/E3 for transmission to the opposite hop. Data traffic at co-located sites route through bridge cables. Page 1-4 8/12/03 CM7/8 100Base-T System User’s Manual...
Page 37: Figure 1-3. Typical Single-Hop Configuration
TX RX TX RX TX RX TX RX DS3/E3 DS3/E3 DS3/E3 Site A Site C DS3/E3 RADIO 6 RADIO 4 LAN B2 TX RX Site B Site D Figure 1-4. Multi-Hop Configuration CM7/8 100Base-T System User’s Manual 8/12/03 Page 1-5...
Page 38: Channel Capacity
The radio uses 128 QAM modulation and has a 30 MHz RF channel bandwidth. Equipment Description Figure 1-5 shows a typical protected CM7/8 100Base-T. In this illustration the front cover is off to show the radio frequency (RF) and signal processing (SP) shelves and individual plug-in modules.
Page 39: Figure 1-5. Cm7/8 100Base-T Radio In Hot-Standby Configuration
Microwave Networks Figure 1-5. CM7/8 100Base-T Radio in Hot-Standby Configuration Table 1-B. CM7/8 100Base-T Radio Sections and Modules Section Module RF Section RF Distribution Transmitter Unit (TXU) Receiver Unit (RXU) RF Power Supply Unit (RF PSU) CM7/8 100Base-T System User’s Manual...
Page 40: Transmission Engineering
In a digital radio, like the CM7/8, interference only becomes apparent when it is of sufficient level such that the T/I ratio of the digital receiver has been violated. Appendix A illustrates and defines T/I ratio.
Page 41: Specifications
Power and threshold are guaranteed engineering specifications at 25°C as measure at the antenna flange. Transmitter Power Table 1-C lists the CM7/8 transmitter rated power output. Power is measured at the antenna connection to the radio and no additional branching losses need be added. Receiver Sensitivity Tables 1-C outlines minimum threshold receive signal level of the CM7/8 1x1 hot- standby receiver as measured at the antenna connection.
Page 42: Table 1-C. Cm7/8 100Base-T Radio Specifications
Chapter 1 General Information Table 1-C. CM7/8 100Base-T Radio Specifications Specification CM7/8 100Base-T System (Monitored Hot-Standby) Typical System Gain (10 BER, APC High) D-High Power (DHP) 101.5/100.5 High Power (HP) 98.5 dB Standard Power (SP) 93.5 dB Modulation Type 128 QAM Transmission Rate 166.77 Mbps...
Page 43: Table 1-D. General Specifications
External Alarm Inputs Number of Inputs (with NMU) 4 (8) Type Std. - TTL External Control Outputs Number of Control Outputs (with NMU) 4 (8) Type Form-C Dry Contact (NO, NC, COMM) CM7/8 100Base-T System User’s Manual 8/12/03 Page 1-11...
Page 44 Specifications apply to the main side a protected radio connected back-to-back, unless otherwise stated. Specifications are subject to change without notice. Power and threshold are guaranteed engineering specifications at 25°C at the antenna flange. Page 1-12 8/12/03 CM7/8 100Base-T System User’s Manual...
Page 45: General Information
Chapter 2 Principles of Operation General Information This chapter covers principles of operation including signal flow through the CM 100Base-T radio. The chapter also addresses protection switching, loopback, and using radio features. Topics include: General Information ......2-1 RF Modules .
Page 46: Receive Function
The resultant microwave frequency signal is further amplified and applied to the TXU output. Three output power configurations are available for CM6 and CM7/8 radios: standard power (SP), high power (HP), and extended high power (DHP); two power configurations for CM11: standard power (SP) and high power (HP). The HP and DHP option provides 6 dB more output power for a given capacity and channel bandwidth.
Page 47: Rf Modules
Microwave Networks RF Modules The following sections provide a brief description of the RF components. The radio cabinet is configured so that the primary (A) side modules seat on the left, and redundant (B) modules seat on the right. Changes to the waveguide branching network and module configuration establish the radio protection method.
Page 48: Transmitter Unit
(SP), high power (HP), and extended high power (DHP, on CM6 & CM7/8). The receiver (RXU) interfaces with the receive filter using a semi-rigid coaxial cable. It is connected to the Demodulator (DEMOD) at an IF interface using flexible coaxial cable.
Page 49: Signal Processing
Microwave Networks Signal Processing The following sections provide a brief description of the components of the signal processing (SP) section of the radio cabinet. Signal processing prepares user data for transmission at microwave frequencies. For a detailed descriptions each module, see the individual module descriptions in Chapter 3.
Page 50: Atde And Dfm
Chapter 2 Operation DEMOD MUX SYNDES SYNDES DEMOD Radio A Radio B F-0100A Figure 2-2. Signal Processing Shelf in Protected Configuration ATDE and DFM The DEMOD incorporates an adaptive transversal digital equalizer (ATDE). This is a multiple-tap transversal equalizer that improves dispersive fade margin (DFM)—the receiver’s ability to resist dispersive fading.
Page 51: Rf Equipment Configurations
Microwave Networks RF Equipment Configurations CM 100Base-T radio equipment configurations include protection and repeater arrangements. this section cover the basic configuration. Protection In redundancy protected radios, traffic automatically transfers between in-service and redundant units on failure of the in-service signal path. A manual switch places equipment off line for maintenance.
Page 52: Figure 2-4. Hot Standby Tx, Space Diversity Rx (Hs) Signal Flow
Chapter 2 Operation TX A From RF Dist Antenna Port Filter TX B From SYNTHESIZER DEMOD RF Dist RX A Filter SYNTHESIZER DEMOD RF Dist Antenna Port Filter RX B Power Supply A ± (20 to 60) VDC To TX A / RX A Power Supply B ±...
Page 53: Figure 2-5. Non-Protected Tx, Space Diversity Rx (Ns)
Microwave Networks TX A From RF Dist Antenna Por Filter SYNTHESIZER DEMOD RF Dist RX A Filter SYNTHESIZER DEMOD RX B Power Supply A ± (20 to 60) VDC To TX A / RX A Power Supply B ± (20 to 60) VDC...
Page 54: Protection Switching
Chapter 2 Operation Protection Switching The CM radio has 1+1 hot-standby or space diversity protection configurations with switching protection. The ACU–Alarm and Control Unit–provides switch control for both transmit and receive paths. Automatic and Manual A switch between the in-service and standby or redundant signal path occurs automatically or manually.
Page 55: Transmit Switching
Microwave Networks from Radio A to Radio B. Performance is unaffected once a switch over has occurred. Figure 2-7. Monitored Hot Standby Switching Diagram Transmit Switching The transmit side of the CM radio has four switch levels: SYNDES-MUX, TXU-MOD, SCU, and WTU. The following text describes these switch levels.
Page 56: Transmit Wtu Switch
Chapter 2 Operation Transmit WTU Switch The WTU switch only occurs in the protected WTU configuration. Protection of the WTU allows wayside traffic to switch in the event of a failure without impacting the radio traffic. WTU and protected WTU is optional in any radio configuration. Switching Transmit Paths Manually The previous transmit switch descriptions discuss switch levels that the ACU monitors and controls automatically.
Page 57: Receiver Scu Switch
Microwave Networks Similarly, the output from the receive section of the B-radio MUX is applied to the input of the receive section of the B-radio SYNDES. The SYNDES-MUX switch level determines whether the output from the receive section of the A-radio SYNDES or B- radio SYNDES is sent to the terminal block.
Page 58: Loopbacks
Chapter 2 Operation Loopbacks Loopback is an operating mode that configures the signal paths to isolate circuits for maintenance and repair. The radio has two major loopback categories: local and remote. The site from which one initiates loopback is, for this explanation, the local site. While local loopback is a circuit loop at the local (near end) radio, remote loopback is a circuit loop at the remote (far end) radio for assessment at the local radio.
Page 59: Setting Loopback
Microwave Networks Setting Loopback Set loopback on most circuits using Quiklink–the CM support software (Appendix B). Some loopbacks require a custom procedure as the individual loopback discussions that follow outline. To access QuikLink menus connect a local maintenance terminal to the Local Access port as Chapter 4 describes.
Page 60: Performing If Local Loopback
Chapter 2 Operation DEMOD DEMOD Figure 2-9. RF and IF Loopback Setup Performing IF Local Loopback In IF local loopback, the MOD IF output to the TXU instead connects to the DEMOD IF input as the right side of Figure 2-9 shows. This isolates the SP from the RF section of the radio during troubleshooting.
Page 61: Adaptive Power Control
Microwave Networks Adaptive Power Control While diversity protection protects the receive RF path, Adaptive Power Control (APC) protects the RF path by adjusting transmitter power in response path fade conditions. APC also helps reduce radio power use, increase equipment service, and decrease coordination in areas with similar equipment.
Page 62 Chapter 2 Operation Page 2-18 5/02/05 CM 100Base-T System User’s Manual...
Page 63: Chapter 3-Module Descriptions
Chapter 3 Module Descriptions Introduction Table 3-A lists radio modules, their part numbers, and the associated manual section. Table 3-A. CM7/8 100Base-T Modules Section Module Part Number CM Cabinet MHN6126 Access Panel 28DS1/3DS3/SONET/100BaseT 8209302-00 Access Panel 12DS1/3DS3/SONET/100BaseT 8209245-00 SP Backplane...
Page 64: Chapter 3-Module Descriptions
Chapter 3 Module Descriptions Page 3-2 CM7/8 100Base-T...
Page 65: Introduction
Section 3-1 Radio Cabinet Introduction The CM radio cabinet includes the access panel, RF distribution, signal processing (SP), and radio frequency (RF) sections. Major discussions in this section include: Introduction ......3-1-1 Access Panel.
Page 66 Section 3-1 Chassis Figure 3-1-1. 8209309-00 – Universal 28DS1, 3DS3, 155-Mbps, and 100BaseT Access Panel Page 3-1-2 CM System User’s Manual...
Page 67 Microwave Networks Figure 3-1-2. 8209245-00 – Common 12DS1, 3DS3, 155-Mbps, and 100BaseT Access Panel CM System User’s Manual Page 3-1-3...
Page 68: Principles Of Operation
Section 3-1 Chassis Principles of Operation The access panel provides front access to indicators, controls, connections, and fuses. The fuses, Figure 3-1-3 Power Distribution diagram, protect the radio from power surge. Battery A Battery B Power Distribution F-0780-0494 Figure 3-1-3. Power Distribution Diagram The access panel also has a Local Access port;...
Page 69: Access Panel Features
Microwave Networks Access Panel Features 8209302-00 – Universal 28DS1 to 100BaseT Access Panel The 8209302-00 access panel is the latest model for universal use on DS1, DS3, SONET, and 100BaseT radios. The factory installs an NMS interface with the optional Network Management Unit (NMU).
Page 70 Section 3-1 Chassis DS3 and SONET Electrical Connectors – 50-Ω BNC connectors for DS3 or 155- Mbps data I/O. Jumpers, listed below, on the Line I/O board behind the access panel set DS3 configuration. Jumpers E1 & E2 1-2 for 1DS3 2-3 for 3DS3 Network Ports –...
Page 71: Table 3-1-A. 8209302-00 Configuration Switch Settings
Microwave Networks 11. SPKR Jack–4-position, 4-pin modular jack for an external speaker. 12. DTE/DCE Switch–In DCE, Local Access port connects to DCE with 1-to-1 cable. In DTE, Local Access port connects to DTE with 1-to-1 cable. 13. Local Access Connector – DB9 connector interfaces the Local Maintenance Terminal (LMT), a VT100/VT220 compatible terminal, for radio maintenance, configuration, and monitoring.
Page 72: 8209245-00 Access Panel
Section 3-1 Chassis 8209245-00 Access Panel Figure 3-1-5 calls out each indicator, control, and connector on the access panel. Text below describes each item. See Chapter 4 for connector pin wiring. Figure 3-1-5. 8209245-00 Access Panel Features Note: Use data input and output connections that agree with radio capacity. DS1 TELCO Connector –...
Page 73: Figure 3-1-6. Snmp Network Interface
Microwave Networks For SNMP network: A 4-pin RJ-11 jack to bridge SCE data. An 8-pin RJ-45 10BaseT Ethernet connector (see Appendix G). LINK LED lights to indicate a good Ethernet connection. A blinking ACTY LED shows network data activity to and from the radio.
Page 74 Section 3-1 Chassis DTE, Local Access port connects to DTE with 1-to-1 cable. 13. Local Access Connector – DB9 connector interfaces the Local Maintenance Terminal (LMT), a VT100/VT220 compatible terminal, or computer for local (on site) mainte- nance, configuration, and monitoring. 14.
Page 75: Sp Shelf Backplane
Microwave Networks SP Shelf Backplane The SP backplane is the interface between the SP modules. Each module plugs directly into the SP backplane. Jumpers The SP backplane contains 11 jumpers that identify radio capacity. Two jumpers configure the radio for each capacity: E1 is always installed, and a second jumper according to capacity (Table 3-1-F).
Page 76: Rf Shelf Backplane
Section 3-1 Chassis RF Shelf Backplane The RF backplane is the interface between the TXU, RXU, RFPSU. Each of these modules plugs directly into the RF backplane. Figure 3-1-8 illustrates connector placement on the RF backplane. T X U A R X U A R X U B T X U B...
Page 77: Section 3-2-Rf Distribution
Section 3-2 RF Distribution General Information The RF Distribution section of the CM7/8 radio consists of a transmit filter, receive filter(s), and a waveguide branching network. Topics in this section include: General Information ..... . 3-2-1 Functional Description .
Page 78: Functional Description
A n te nn a TX B R X A R X B F rom S pa ce D iv ersity A nten na F -113 4 Figure 3-2-2. HS (TX Hot Standby, RX Space Diversity) RF Distribution Page 3-2-2 CM7/8 System User’s Manual...
Page 79 M O N TX A M O N TX B To / From A ntenna M O N RX A M O N RX B ffblk Figure 3-2-4. FF (TX & RX Frequency Diversity) RF Distribution CM7/8 System User’s Manual Page 3-2-3...
Page 80: Physical Description
ONLINE MON - coupled transmit signal used to set the online transmitter power level. NOTE: Only qualified personnel should adjust transmitter power levels ON LINE RF IN RF IN RF OUT Figure 3-2-6. Hot-Standby (HH) Waveguide FiltersFilters (HH) Page 3-2-4 CM7/8 System User’s Manual...
Page 81: Hs Features
RF OUT- Receive filter output that sends the signal to RX A. RF OUT- Receive filter output that sends the signal to RX B. RF OUT RF IN RF IN Figure 3-2-8. NS (Non-Protected TX/Space Diversity Rx) RF Distribution CM7/8 System User’s Manual Page 3-2-5...
Page 82: Ff Features
RF IN - Transmit filter input that feeds the signal from TX A to the branching network. RF OUT- Receive filter output that sends the signal to RX A. ONLINE MON-coupled transmit signal used to set the online transmitter power level. Figure 3-2-10. NN (Non-Protected) RF Distribution Page 3-2-6 CM7/8 System User’s Manual...
Page 83: Transmitter Unit (Txu)
Transmitter Unit (TXU) Introduction This section describes the features and operation of the CM7/8 Transmitter (TXU). Topics include: Introduction ......3-3-1 General Information .
Page 84: Functional Description
+12.3 VDC +11 VDC REG TX Power Mon +5 VDC REG APC Confirm MUX Out Fan Alarm -5 VDC REG -6 VDC Ground TX Alarm Control TX Alarm F-1137 Figure 3-3-2. TXU Block Diagram Page 3-3-2 CM7/8 System User’s Manual...
Page 85: Tx Features
Con- nects the first conversion LO sig- nal to the adjacent RXU for RF local loopback test. And, for mea- suring the first conversion LO fre- quency. Figure 3-3-3. Transmitter Features CM7/8 System User’s Manual Page 3-3-3...
Page 86: Setting Txu Boards
Settings not listed indicate that the jumper is not on the board. configuration only Vary with IF BPF/LO Board configuration Figure 3-3-5. TX IF BPF/LO Board Jumper Locations Page 3-3-4 CM7/8 System User’s Manual...
Page 87: Table 3-3-C. Txu If Bpf/Lo Board Jumper Settings
182 MHz MLN8108 MLN8208 196 MHz MLN8107 MLN8207 CM7/8 245 MHz MLN8106 MLN8206 266 MHz MLN8106 MLN8206 CM7/8 300 MHZ MLN8176 MLN8276 305.56 MHz MLN8176 MLN8276 CM7/8 311.32 MHz MLN8176 MLN8276 * Standard T/R spacings. CM7/8 System User’s Manual Page 3-3-5...
Page 88 Section 3-3 Transmitter Unit Page 3-3-6 CM7/8 System User’s Manual...
Page 89: Introduction
Receiver Unit (RXU) Introduction The CM7/8 Receiver Unit (RXU) sits in the RF shelf. This section describes the features and operation of the receiver. Topics include: Introduction ......3-4-1 General Information .
Page 90: Functional Description
Oscillator FREQ MUX Out PLL Alarm AGC MON +12.3 VDC +11 VDC REG +5 VDC REG -6 VDC -5 VDC REG LO Alarm Ground RX Alarm Control RX Alarm F-1138 Figure 3-4-2. Receiver Functions Page 3-4-2 CM7/8 System User’s Manual...
Page 91: Front Panel Features
10. TX LO OUT - SMA interface that con- nects the LO signal from the synthesizer F-1162 to the associated TXU. Figure 3-4-3. RXU Features 11. RF LPBK - Switch to configure the RXU for RF local loopback operation. CM7/8 System User’s Manual Page 3-4-3...
Page 92: Setting Rx Boards
2-3 RF>LO band. Depends on bandwidth option. 2-3 AUTO MAN/AUTO Factory test and adjustment. E3, E4 2-3 1DS1/DS3 (10 MHz) Bandwidth Option Sets appropriate channel 1-2 3DS3 (30 MHz) bandwidth for system capac- ity. Page 3-4-4 CM7/8 System User’s Manual...
Page 93: General Information
Section 3-5 RF Power Supply Unit (RF PSU) Introduction The RF Power Supply Unit (RF PSU) sits in the RF shelf. This section describes the power supply features and operation. Topics include: Introduction ......3-5-1 General Information .
Page 94: Functional Description
Section 3-5 RF Power Supply Unit Functional Description Each side of a protected RF shelf (A and B) has its own power supply. The regulated voltages are low in order to minimize power consumption. This single unit can accept either positive or negative primary voltage from -20 to -60 Vdc or +20 to +60 Vdc. Figure 3-5-2 is a functional block diagram of the RF PSU.
Page 95: Rf Psu Board Features
Microwave Networks RF PSU Board Features There are no user configuration jumpers on the RF Power Supply board as Figure 3-5-3 shows. Access the alarm and test points from the front panel. The following text describes these features. Figure 3-5-3. RF Power Supply Board ALM LED –...
Page 96 Section 3-5 RF Power Supply Unit Page 3-5-4 CM System User’s Manual...
Page 97: Introduction
Section 3-6 SP Power Supply Unit (SP PSU) Introduction This section describes the features and operation of the SP PSU. Topics include: Introduction ......3-6-1 General Information .
Page 98: Functional Description
Section 3-6 SP Power Supply Unit Functional Description Each side of a protected signal processing shelf has its own power supply. The regulated voltages are low to minimize power consumption. The unit accepts positive or negative primary voltage from -20 to -60 Vdc or +20 to +60 Vdc. For proper operation, each output voltage must have a minimum of 25% of maximum load.
Page 99: Sp Power Supply Features
Microwave Networks SP Power Supply Features The SP Power Supply has no user configuration jumpers. Figure 3-6-3 shows the board indicators, controls, and test points. Figure 3-6-3. SP PSU Features ALM - Red LED controlled by the ACU that indicates the SP Power Supply is in alarm.
Page 100 Section 3-6 SP Power Supply Unit Page 3-6-4 CM System User’s Manual...
Page 101: Introduction
Section 3-7 Alarm and Control Unit (ACU) Introduction This section describes the features and operation of the ACU. Topics include: Introduction ......3-7-1 General Information .
Page 102: Functional Description
Section 3-7 Alarm and Control Unit The Status and Control Extender (SCE) and the Network Management System (NMS) interface the radio through the ACU. Since ACU faults do not affect radio data traffic, the ACU, part number MLN7195, sits in the SP shelf without a redundant unit.
Page 103: Acu Features
Microwave Networks ACU Features Figure 3-7-3 shows the location of the ACU and NMU alarm indicators: ALM (ACU) — Red LED that shows when an ACU fault occurs. Always check NMU and ACU seating before assuming module failure. ALM (NMU) — Red LED that shows when an NMU fault occurs.
Page 104: Table 3-7-A. Acu Jumper Settings
Section 3-7 Alarm and Control Unit Figure 3-7-4. ACU Jumper and Switch Locations Table 3-7-A. ACU Jumper Settings Jumper Setting Function Enabled E1,E2,E3 Normal operation Factory test Alarm Cut Off (ACO) disables audible and visual alarm ACO only disables audible alarm ACU fail causes minor alarm only ACU fail causes major and minor alarm 4-Port NMU (see NMU section for details)
Page 105: Table 3-7-B. Acu Dip Switch Settings
Microwave Networks Table 3-7-B. ACU DIP Switch Settings Switch Rocker Setting Function Enabled NOTE: Switches can be marked OPEN or DOWN. OPEN/DOWN is OFF as labeled on the board Closed Service channel not equipped Open Service channel equipped Closed Service channel non-protected...
Page 106 Section 3-7 Alarm and Control Unit Page 3-7-6 11/18/03 CM 100Base-T System User’s Manual...
Page 107: Introduction
Section 3-8 Modulator (MOD) Introduction This section describes features and operation of the MOD. Topics include: Introduction ......3-8-1 General Information .
Page 108: Functional Description
Section 3-8 Modulator Functional Description Parallel data from the MUX (multiplexer) enters the MOD, which converts the data to an analog signal, and then mixes the signal with a 70-MHz carrier to generate a QAM signal. This signal goes to the RF shelf for upconversion and transmission. The I and Q Base Band outputs of the MOD are root-raised cosine signals.
Page 109: Mod Features
Microwave Networks MOD Features For monitoring and troubleshooting the MOD use the indicators, controls, and test points shown in Figure 3-8-3. MCX Connector - 50-ohm IF output to the RF shelf. ALM - Red LED that indicates the mod- ule is in an alarm condition. Controlled by the ACU.
Page 110: Setting The Mod Board
Section 3-8 Modulator Setting the MOD Board The 8000514 MOD has five board jumpers, but none for user configuration. Figure 3-8-4 shows these jumpers, and Table 3-8-B lists factory default jumper settings. Figure 3-8-4. MOD Board Jumper Locations Table 3-8-A. MOD Jumper Settings Jumper Setting Function Enabled...
Page 111: Introduction
Section 3-9 Demodulator (DEMOD) Introduction This section describes features and operation of the demodulator (DEMOD). Topics include: Introduction ......3-9-1 General Information .
Page 112: Functional Description
Section 3-9 DEMOD Functional Description The DEMOD (demodulator), Figure 3-9-2, accepts a QAM signal centered at 70 MHz from the RXU and removes the modulation to produce I and Q baseband signals. A/D converters sample the I and Q signals and send the output to the adaptive time domain equalizer (ATDE).
Page 113: Demod Features
Microwave Networks DEMOD Features Refer to Figure 3-9-3 for the locations of the following indicators, controls, and test points: I EYE—I axis eye pattern test point (50 ohms), and associated ground. ALM—Red LED, controlled by the ACU, that indicates the DEMOD is in alarm due to an internal fault or a fault in the RXU or MUX.
Page 114: Setting The Demod Board
Section 3-9 DEMOD Setting the DEMOD Board The 8000515-00 DEMOD board, Figure 3-9-4, has no user configuration jumpers. Table 3-9-B lists the default factory settings. Figure 3-9-4. DEMOD Board Jumper Locations Table 3-9-A. DEMOD Board Default Settings Header Function Setting Q FINE GAIN Factory test only Q FINE OFFSET Factory test only I FINE OFFSET Factory test only...
Page 115: Introduction
Section 3-10 Multiplexer (MUX) Introduction This section describes features and operation of the multiplexer (MUX). Topics include: Introduction ......3-10-1 General Information .
Page 116: Functional Description
Section 3-10 Functional Description On the transmit side, the MUX receives NRZ data and clock signals from the SYNDES unit, multiplexes these signals together with the four 64 kbps service channels and the two (fast channel and NMS) 64 kbps internal overhead channels, and creates a symbol stream suitable for the input to the MOD.
Page 117: Mux Features
Microwave Networks MUX Features Figure 3-10-3 shows the MUX as seen from the front of the radio. The call-out shows the location of the front-panel ALM LED. ALM— Red LED, controlled by the ACU, that shows when the MUX is in an alarm condition.
Page 118: Setting The Mux Board
Section 3-10 Setting the MUX Board Figure 3-10-4 shows the board jumper locations. The MUX has no user configuration settings, so Table 3-10-B lists the factory default jumper setting. Figure 3-10-4. MUX Jumper Locations Table 3-10-A. MUX Jumper Settings Jumper Setting Function FEC Enabled, normal operation...
Page 119: Introduction
Section 3-11 Synchronizer/Desynchronizer (SYNDES) Introduction This section describes the Synchronizer/Desynchronizer (SYNDES) module and its configuration settings. Topics include: Introduction ......3-11-1 General Information .
Page 120: Functional Description
Section 3-11 SYNDES Functional Description The SYNDES plugs into the signal processing shelf. It takes customer signal traffic and formats it into radio transportable data. SYNDES functions to complete the signal preparation and conversion include: • Sensing 10/100Base-T signal • Sensing full/half-duplex mode •...
Page 121: Figure 3-11-2. Syndes Block Diagram
Microwave Networks Osc. 38.88 MHz Data Ethernet Nibble Switch IP Data From Clock Ethernet Recovery Switch FIFO Nibble Half-Full Data Reduce Jitter DS3/E3 DS3/E3 Transmit/ Receive Nibble Control Priority Status Mode Select Figure 3-11-2. SYNDES Block Diagram CM System User’s Manual...
Page 122: Syndes Features
Section 3-11 SYNDES SYNDES Features The SYNDES alarm LED lights during an alarm condition. As for all alarm LEDs, the ACU controls LED operation. An example of a SYNDES alarm would be when the alarm indication circuit detects the absence of clock data when transmitting. The alarm indication (blue) signal (AIS) generator sends an all-ones signal upstream, which alerts upstream equipment and the ACU.
Page 123: Setting The Syndes Board
Microwave Networks Setting the SYNDES Board Figure 3-11-4 shows SYNDES switch and jumper locations. Table 3-11-B lists the dip switch settings of switch S2 that combine to select percent of bandwidth (priority switching) for each interface. Switch S1 is used during factory programming. All positions of S1 must remain OFF for during operation.
Page 124 Section 3-11 SYNDES Page 3-11-6 CM System User’s Manual...
Page 125: Introduction
Section 3-12 Service Channel Unit (SCU) Introduction This section describes the Service Channel Unit (SCU) and its configuration settings. Topics include: Introduction ......3-12-1 General Information .
Page 126: Functional Description
Section 3-12 Functional Description The SCU can be used in a 1x1 protection configuration, or it can be used unprotected by plugging the SCU into the A radio side of the SP shelf. The four 64 kbps channels on the SCU provide two VF (PCM) channels and two data ports.
Page 127: Scu Features
Microwave Networks SCU Features Figure 3-12-3 shows the location of features that are visible from the front of the radio CH1 INPUT GAIN—Factory set point for in- put Channel 1 signal level. Set to measure 1.46 ±0.01Vpp at TP5 with -3.5 dBm, 1kHz sine wave input.
Page 128: Setting The Scu Board
Section 3-12 Setting the SCU Board The SCU board has three configuration jumpers and two mode switches. Figure 3-12-4 shows the jumper and switch locations. Table 3-12-A lists jumper settings, and Table 3- 12-B lists settings for S1 and S2. Figure 3-12-4.
Page 129: Table 3-12-B. Scu S1 And S2 Dip-Switch Settings For Digital Channels
Microwave Networks Table 3-12-B. SCU S1 and S2 DIP-Switch Settings for Digital Channels Setting DIP-Switch Switch logic: Channel Configuration Position ON=closed; OFF=open Factory defaults in bold: Not used, Normal, 2 stop bits, 1 parity bit, 8 data bits, 9.6 kbps...
Page 130 Section 3-12 Page 3-12-6 11/18/03 CM 100Base-T System User’s Manual...
Page 131: Introduction
Section 3-13 Orderwire Unit (OWU) Introduction This section describes the Orderwire Unit (OWU) and its configuration settings. Topics include: Introduction ......3-13-1 General Information .
Page 132: Functional Description
Section 3-13 Functional Description The OWU, when used in with the SCU, provides a full-featured dual-tone multi- frequency (DTMF) signaling orderwire. It also provides two 4-way/4-wire bridges for either two 3 kHz channels, intended for VF communications, or one 7 kHz channel to accommodate split-band type alarm reporting systems, selectable station calling employing DTMF signaling, and bridging circuits to interconnect multiple radio links at junctions and repeater sites.
Page 133: Figure 3-13-2. Orderwire Unit Block Diagram
Microwave Networks Alarm Output Power (to ACU) Supply Alarm Station Address Address DTMF Decoder (to ACU) Switches & Processor Buzzer Hook Off-Hook From Hook Switch Off-Hook Out (from hanset) Switch Control (to SCU/ACU) Handset Handset VF Input Low-Pass Input Handset VF Output -16 dBm/600 Ω...
Page 134: Owu Features
Section 3-13 OWU Features Refer to Figure 3-13-3 for the location of the following indicator: ALM—Red LED that indicates the OWU is in alarm. The ACU controls alarms. o w u f r o n t Figure 3-13-3. OWU Features Orderwire Handset The optional OWU comes with a handset, PN MLN7324, that plugs into the access panel handset jack.
Page 135: Setting The Owu Board
Microwave Networks Setting the OWU Board The OWU has two jumpers and three rotary switches. Figure 3-13-5 shows the jumper and switch locations. Table 3-13-A lists jumper settings, and Table 3-13-B lists switch settings. F - 0 1 1 8 - O Figure 3-13-5.
Page 136: Table 3-13-B. Owu Switch Settings
Section 3-13 Table 3-13-A. OWU Jumper Settings (Continued) Jumper Setting Function Enabled 23-24 VF channel 13 gain adjust (-16 dB In; +7 dB Out) 25-26 AUX out enable on-hook (controlled by off-hook switch) 27-28 AUX out enable continuous (AUX output always On) 29-30 Handset out enable off-hook (controlled by off-hook switch) 31-32...
Page 137: Configuring The Orderwire, Service Channel, And Bridge
Microwave Networks Configuring the Orderwire, Service Channel, and Bridge On an OWU used with the SCU set for dual narrowband VF each SCU VF channel of the host radio connects to one of two VF bridges. This leaves three bridge legs available on each VF channel for other radio service channels or alarm monitoring equipment.
Page 138 Section 3-13 Page 3-13-8 CM System User’s Manual...
Page 139: Introduction
Section 3-14 Wayside Traffic Unit (WTU) Introduction This section describes the Wayside Traffic Unit (WTU) and its configuration settings. Topics include: Introduction ......3-14-1 General Information .
Page 140: Functional Description
Section 3-14 Functional Description Figure 3-14-2 shows signals through the WTU. On the transmit side, the WTU accepts one DS1/E1 signal and one asynchronous data signal (up to 9600 bps) from the access panel. The module recovers the clock from the DS1/ E1 signal, and converts the signal and the asynchronous data signal into an NRZ TTL format.
Page 141: Wtu User Features
Microwave Networks WTU User Features Refer to Figure 3-14-3 for the location of the Alarm LED. ALM LED — Red LED that indicates the WTU is in alarm. This LED is controlled by the ACU F - 0 0 4 4 - O Figure 3-14-3.
Page 142: Mln7330 Settings
Section 3-14 MLN7330 Settings The MLN7330 WTU that supports North American digital signal hierarchy contains five configuration jumpers and one switch. See Figure 3-14-4 for jumper and switch locations, Table 3-14-A for jumper settings, and Table 3-14-B for switch settings. E 1 0 F - 0 1 1 1 Figure 3-14-4.
Page 143: 8000608-00 Settings
Microwave Networks 8000608-00 Settings The current WTU has one eight-position configuration switch that Figure 3-14-5 shows. Table 3-14-C lists line buildout (length) settings, and Table 3-14-D lists line code settings. SW1-position 6 must stay on (closed) to enable WTU output.
Page 144: Mln7329 Settings
Section 3-14 MLN7329 Settings The MLN7329 WTU supports International digital signal (E1) operation and has 14 jumpers and one switch. Refer to Figure 3-14-6 for jumper and switch locations, Table 3- 14-E for jumper settings, and Table 3-14-F for switch settings. E 1 0 E 1 1 E 1 2...
Page 145: Introduction
Section 3-15 Network Management Unit (NMU) Introduction This section describes the Network Management Unit (NMU) and its configuration settings typically the proprietary communications version. Topics include: Introduction ......3-15-1 General Information .
Page 146 Section 3-15 The network port on the access panel connects network management data to co-located radios and the Telescan network management system. Early-model and 4/8/12DS1 access panels only accept a uni-directional (RS485) connection. The unidirectional connection involves setting S2 on the NMU in a master/slave (3-port bridge) configuration. The high-capacity access panel—MGN8112—accepts a unidirectional or omni-directional (RS-422) connection.
Page 147: Figure 3-15-1. Network Management Unit Block Diagram
Microwave Networks N e t w o r k A c c e s s P a n e l U A R T I N T E R F A C E N E T W O R K...
Page 148: Configuring The P4 Nmu
Section 3-15 Configuring the P4 NMU Jumper Settings Figure 3-15-2 illustrates jumper locations. Refer to Table 3-15-A to determine NMU jumper settings. E9 E10 F -0 2 3 5 c Figure 3-15-2. Jumpers on the Network Management Unit (NMU) Note: When upgrading to NMU capabilities, the U4 PROM p/n is MLN1532. When order- ing a replacement for the U4 PROM, order MLN7481 and MVN4018A.
Page 149: Dip Switches
Microwave Networks DIP Switches The network site address must be set for the NMU. The address, a binary number assigned to the NMU reflecting its network site, is set using dip switch Set S1. When the dip switches are set to open or closed (See Figure 3-15-3), a numeric value is established that the system can read.
Page 150 Section 3-15 Page 3-15-6 CM System User’s Manual...
Page 151: Chapter 4-Equipment Installation
Chapter 4 Equipment Installation Introduction This chapter provides installation procedures. Topics include: Introduction ......4-1 Preparing the Installation .
Page 152: Figure 4-1. Typical 19-Inch Telco Rack
Chapter 4 Installation Figure 4-1. Typical 19-Inch Telco Rack A typical floor-mounting procedure includes drilling holes in the floor to match the mounting holes (Figure 4-1). See Figure 4-2 for an illustration of both floor and overhead support dimensions. Page 4-2 2/20/04 CM System User’s Manual...
Page 153: Figure 4-2. Floor Mounting
Microwave Networks Figure 4-2. Floor Mounting Install any overhead support structure above the rack. The rack attaches to the support with J-hooks (Figure 4-3). If support is a channel ladder that spans the ceiling, one J-hook on each side of the ladder provides enough support. If the channel ladder is a short piece attached to an overhead structure, use additional J-hooks.
Page 154: Unpacking Equipment
Chapter 4 Installation Unpacking Equipment The radio and its accessory kit ship in one box with the radio mounted in its 19-inch telecommunications equipment rack. Table 4-A lists the items in the accessory kit. CAUTION! Disassemble the crate carefully to prevent damage to the radio CAUTION Table 4-A.
Page 155: Figure 4-4. Dc Power Connections
Microwave Networks Back of Radio Top View F-0738a Figure 4-4. DC Power Connections Figure 4-5. Power Connection for Dual Battery Source CM System User’s Manual 2/20/04 Page 4-5...
Page 156: Grounding The Rack
Chapter 4 Installation Figure 4-6. Power Connection for a Single Battery Source Grounding the Rack The radio rack has a ground bar that runs down the left front of the rack. This assembly accepts up to 6 AWG stranded grounding wire. Attach this to the office/building ground as in Figure 4-7.
Page 157: Dc Power Cables
Microwave Networks To p T B 1 B AT T E R Y E a r th g ro u n d D O N O T c o n n e c t a c o m m o n g ro u n d b e tw e e n th e ra d io a n d th e b a tte ry s u p p ly.
Page 158: Cabling The Access Panel
Chapter 4 Installation Cabling the Access Panel The early-model 8209245-00 common access and 8209302-00 universal access panel (Figure 4-9) has connections for 10/100BaseT, DS1, and DS3 lines; and 155-Mbps optical and electrical connections. Sub-D connections provide access to auxiliary alarm and relay controls.
Page 159: Signal Wiring
Microwave Networks Signal Wiring Use the following tables to connect signals lines to the radio. Table 4-C — 50-pin DS1 connectors Table 4-D — 10/100BaseT port Table 4-E — DS3 and 155-Mbits connector Table 4-F — DB15 TTL connector Table 4-G — DB25 auxiliary alarm relay connector Table 4-H —...
Page 160: Table 4-E. Ds3 And 155-Mbit Connections
Chapter 4 Installation Table 4-E. DS3 and 155-Mbit Connections Connection Description 155-Mbps Optical Connections OC-3 IN SC Duplex adapter, per ANSI X3T9.3 SC OC-3 OUT DS3/155-Mbps Electrical Connections SONET SONET SONET DS 3 CH 2 DS3 CH 1 DS3 CH 3 O UT DS3 CH1/ DS I/O on DS3–3DS3 radios.
Page 161: Table 4-F. Db15 Ttl Interface Connections
Microwave Networks Table 4-F. DB15 TTL Interface Connections Signal *TTL output 1 *TTL output 3 *TTL input 1 *TTL input 3 TTL Input 5 TTL Input 7 GND (ground) *TTL Output 2 *TTL output 4 *TTL Input 2 *TTL Input 4...
Page 162: Table 4-H. Modular (Rj11) Interface Connections
Chapter 4 Installation Table 4-H. Modular (RJ11) Interface Connections Pin 1—Top of Jack. DGTL CH1 VF 1 VF 2 DGTL CH2 SPKR HAN DSE T W TU Signal Signal VF1 Branch 1 Digital Channel 1 INPUT VF #1 TIP RS232/423 INPUT #1 INPUT VF #1 RING OUTPUT VF#1 TIP OUTPUT VF #1 RING...
Page 163: Table 4-I. Network Port Connections
Microwave Networks The network port (Table 4-H) connects network management data to co-located radios and the Telescan network management system. The high-capacity access panel accepts a uni- or omni-directional (RS-422) connection. The omni-directional connection involves setting the NMU to a 4-port bridge element (Figure 3-1-1). Jumpers on the Network...
Page 164: Figure 4-10. Network Bridge Connections; Radios And Telescan
Chapter 4 Installation Figure 4-10. Network Bridge Connections; Radios and Telescan Page 4-14 2/20/04 CM System User’s Manual...
Page 165: Connecting Monitoring Devices
Microwave Networks Connecting Monitoring Devices The radio requires a VT100/VT220, ANSI, or equivalent computer terminal at the local site, or remotely via modem, to configure and verify installation, monitor status and performance, and complete software diagnostic and maintenance. The MLN8003A Local Maintenance Terminal (LMT) is available for such use. However, any VT100/VT220, ANSI, or equivalent terminal works.
Page 166: Connecting Local Access
Chapter 4 Installation Connecting Local Access The computer or terminal serial communications (COM) port is either a Sub-D 9-pin connector, or Sub-DB 25-pin connector. The local access port on the radio is a female Sub-D 9-pin connector that carries three RS-232 compatible signals (Table 4-J). Connect the terminal using the following steps.
Page 167: Figure 4-11. Terminal To Radio Connection; Dte-To-Dte
Microwave Networks CM Radio CM Radio Local Access Local Access DB9-DB9 DB9-DB25 Null Modem Cable Null Modem Cable (DTE-DTE) (DTE-DTE) DB25 Comm Port Comm Port Computer/Terminal Computer/Terminal Figure 4-11. Terminal to Radio Connection; DTE-to-DTE CM Radio CM Radio Local Access...
Page 168: Verifying Operation
Chapter 4 Installation Verifying Operation Should the computer/terminal connection not work, verify the connections as follows. Check voltage across pins 3 and 5 of the local access port (DB9 connector). The top row of the connector is pins 1 through 5, with pin 1 on the right. The radio and the ac- cess panel is normal if the measured voltage value reads between 8 and 12 volts.
Page 169: Dte/Dce Wiring
Microwave Networks Table 4-K lists modem data transfer requirements, and Tables 4-L and 4-M describe DTE-to-DCE and DTE-to-DTE internal cable connections, respectively. Table 4-K. Modem Communication Requirements Function Setting Baud Rate 9600 Parity None Data Bits Stop Bits Terminal Emulation...
Page 170: Figure 4-14. Dte-To-Dte And Dte-To-Dce Wiring
Chapter 4 Installation DB9 DTE DB9 DTE DB25 DTE DB9 DTE DB9 DTE DB9 DCE DB9 DCE DB25 DTE DB25 DCE DB9 DTE DB25 DTE DB25 DTE DB9 DCE DB25 DCE DB25 DTE DB9 DCE DB25 DCE DB9 DCE DB9 DCE DB25 DCE DB25 DCE Figure 4-14.
Page 171: Connecting Antennas
CAUTION The CM6 radio uses CMR137F waveguide flanges for the antenna connection and E.I.A. WR137 waveguide. The CM7/8 radio uses CMR112F waveguide flanges and WR112 waveguide. The CM11 radio uses UG39/U type flanges and WR90 waveguide. Installing flex-waveguide between the radio antenna port and the antenna feed makes antenna feed placement relative to the radio rack easier, and minimizes waveguide vibration damage.
Page 172: Figure 4-16. Antenna Port Connections For Space Diversity Radio
Chapter 4 Installation Primary flange Diversity flange Figure 4-16. Antenna Port Connections for Space Diversity Radio Page 4-22 2/20/04 CM System User’s Manual...
Page 173: Introduction
Chapter 5 System Verification Introduction This chapter describes radio verification procedures required after installation. Topics include: Introduction ......5-1 Inspecting the System .
Page 174: Table 5-A. Sp Module Requirements
Chapter 5 Verification NOTE: When the following tables list only one module, the module sits on the primary side of the shelf except for the OWU, which has only one slot in the radio—on the secondary side. Table 5-A. SP Module Requirements Configuration DEMOD SYNDES...
Page 175: Figure 5-1. Sp Hh Configuration
Microwave Networks Figure 5-1 and 5-2 show the SP and RF shelves and the RF Distribution tray in the hot- standby transmit/hot-standby receive configuration (HH). DEMOD MUX SYNDES SYNDES DEMOD Radio A Radio B F-0100A Figure 5-1. SP HH Configuration Figure 5-2.
Page 176: Figure 5-3. Sp Hs Configuration
Chapter 5 Verification Figure 5-3 and 5-4 show the SP and RF shelves and the RF Distribution tray hot-standby transmit/ space diversity receive (HS) configuration. DEMOD MUX SYNDES SYNDES DEMOD Radio A Radio B F-0100A Figure 5-3. SP HS Configuration Figure 5-4.
Page 177: Figure 5-5. Sp Ns Configuration
Microwave Networks Figure 5-5 and 5-6 show the SP and RF shelves and RF Distribution tray in the non- protected transmit, space-diversity receive (NS) configuration. Figure 5-5. SP NS Configuration TX MON Figure 5-6. RF NS Configuration CM System User’s Manual...
Page 178: Figure 5-7. Sp Nn Configuration
Chapter 5 Verification Figure 5-7 and 5-8 show the SP and RF shelves and the RF Distribution tray in the non- protected (NN) configuration. Figure 5-7. SP NN Configuration Figure 5-8. RF NN Configuration Page 5-6 CM System User’s Manual...
Page 179: If Cabling
Microwave Networks IF Cabling The radios ships with IF cables attached to the RF and SP modules as Figure 5-9 shows. Verify the coax cable connections between the primary MOD IF output (2) and primary TXU IF input (7), and between the secondary TXU IF input and MOD IF output. Also verify the connection between the primary RXU output (5) and DEMOD input (1), and between the secondary RXU and DEMOD.
Page 180: Verifying Operation
Chapter 5 Verification Verifying Operation Accurate alignment and test measurement requires that the radio warm up with covers in place for 45 to 60 minutes. Set up and connect the local maintenance terminal (LMT) to the radio as Chapter 4 outlines. Refer to Appendix B for QuikLink operation with the LMT.
Page 181: Modulator Frequency
Microwave Networks If the above checks fail, check external test equipment and troubleshoot the SP modules using the flowcharts in Chapter 6 and the alarm menu on the LMT. Remove loopbacks and set (071) to AUTO for normal operation. PATH SWITCHING...
Page 182: Leds
Chapter 5 Verification LEDs Once establishing communication across the hop, verify that Major and Minor LEDs on the Access Panel are off and the Alarm LED of each module are also off. Record this in Table 5-G. Data Link For a protected system, set and lock the primary radio online (TX and RX direction). Connect the data output of the test set to the input connector (Ethernet or DS3) on the Access Panel.
Page 183: Receive Threshold
Microwave Networks digital service channel input of the local terminal. Connect the digital data input of the BER test set (at the remote site using the same data pattern) to the digital service channel output of the remote terminal. Verify end-to-end error-free digital service channel operation. There should be no alarm present in the TX or RX direction.
Page 184: Tx Fade Margin
Chapter 5 Verification range of which must be greater than the difference in value between the receive signal level (terminal reading) and the specified received threshold (specifications; Chp. 1). This step also helps you select the correct power sensor to measure RSL. Disconnect the antenna feed from the radio antenna port.
Page 185: Record Rsl/Agc
Microwave Networks Set up the local terminal using the following steps: On a protected radio, use (screen 071) to set A-side mod- CONTROL PATH SWITCHING ules online in the transmit direction and lock their state. Connect the data input from the Access Panel to the test set output. Start the BER test and verify error-free operation from the at the remote terminal.
Page 186 Chapter 5 Verification Remove the power meter from the variable attenuator and connect the variable atten- uator to the radio antenna port. Measure the AGC voltage as measured on the RXU test point as well as the RSL read- ing at the antenna port as displayed on the computer/terminal (Screen 005.) Record these values in Table 5-J.
Page 187: Commissioning The Radio
Microwave Networks Commissioning the Radio After verifying each radio, connect terminal equipment signals to the Access Panel and the antenna port to the antenna feed. Remove all loopbacks. On a protected system, set A side online and set the state of all modules to AUTO (TX and RX direction) with an LMT.
Page 188: Recommended Test Equipment
Chapter 5 Verification Recommended Test Equipment Table 5-D lists recommendations for test equipment required for alignment and operation of the radio. Table 5-E lists functional specifications for test equipment. Table 5-D. Recommended Test Equipment Part Manufacturer Description Tests Number Hewlett Packard 5347A Microwave counter/power meter Transmitter output power and RSL,...
Page 189 Microwave Networks Table 5-E. Test Equipment Electrical and Functional Specifications Equipment Minimum Specifications for Substitutes Hewlett Packard 8481D Impedance 50 ohms Power Sensor Frequency Range 10 MHz to 18 GHz Power Range 0.1 nW to 10 µW (-70 dBm to -20 dBm)
Page 190: Test Tables
Chapter 5 Verification Test Tables Tables 5-F through 5-I on the following pages are provided for recording data from tests described in this chapter. Table 5-F. Voltage and Alarm Checks Parameter Specification Limits System Radio A Radio B RF DC Converter +12.3 Vdc ±0.30 Vdc -6.0 Vdc...
Page 191: Table 5-H. Rsl, Agc, And System Gain
Microwave Networks Table 5-H. RSL, AGC, and System Gain Parameter Specification Limits System Radio A Radio B RSL @ 10 See Chapter 1 AGC @ 10 BER (TP) RSL @ 10 BER (LDU) RSL @ Nominal (APC Low) From path data ±2 dB...
Page 192 Chapter 5 Verification Page 5-20 CM System User’s Manual...
Page 193: Introduction
(international) or fax 1-281-263-6730. Repair/Exchange Service Microwave Networks provides repair and return service as outline by your equipment warranty or purchase agreement or as quoted for equipment out of warranty. Turn around time is typically 14 calendar days from receipt of module to return shipment.
Page 194 Chapter 6 Maintenance Page 6-2 7/23/03 CM 100Base-T System User’s Manual...
Page 195: Technical Support
Microwave Networks Technical Support Around-the-clock telephone support is available on all Microwave Networks products. For telephone support contact 1-888-225-4762 (U.S.) or 1-281-263-6501 (international). Normal hours are 8:00 a.m. to 5:00 p.m., Monday through Friday, U.S. central time (GMT -6:00). After-hour telephone support is available through our dispatch operators.
Page 196: Local Maintenance
Chapter 6 Maintenance Local Maintenance The radio local access port interfaces the radio performance, control, and diagnostic application called QuikLink to any connected VT100-compatible terminal. Customers that need a low-cost and smaller alternative to a laptop computer for access to QuikLink can order the handheld Local Maintenance Terminal, P/N MLN8003A.
Page 197: Dc Voltage Tests
Microwave Networks Transmitter Output Power — Adjust transmitter output power after initial installation and again whenever a TXU is replaced. Note: Adjust transmitter output power with the TXU online and APC Manual off. To adjust transmitter output power: Set the TXU online (screen 071) and set APC to OFF (screen 87.) On non-protected systems, set the RF LPBK switch on the adjacent RXU on to force the TXU off-line.
Page 198: Troubleshooting Procedures
Chapter 6 Maintenance Troubleshooting Procedures Troubleshooting involves tracing a system fault to a specific module or to external equipment. Once found, repair by replacing the module. The module features and LED indicators aid in troubleshooting. CAUTION! Prior to removing a plug-in module, confirm that the module is not in service by CAUTION checking the Alarm and Status screen for that module or the TX or RX PATH screen.
Page 199: Checking The Acu
Microwave Networks at fault and should be checked, reset, and replaced if necessary. Table 6-D. Troubleshooting Flow Chart Matrix Hot-Standby Space Diversity Non-Protected Problem Chart Number SP PSU RF PSU SYNDES (Tx) MUX (Tx) DEMOD MUX (Rx) SYNDES (Rx) BER problems Checking the ACU First rule out software errors.
Page 200: Checking Alarm Logs
Chapter 6 Maintenance alarm, suspect the MUX. A module reporting failure is not always the defective unit. In some cases, a failure in an upstream module may be reported by a downstream module. Examine alarm detail for each module in alarm. This gives a good indication of the failure.
Page 201: Field Changes
Microwave Networks Select View Measurements (005) and press <Enter>. The measurements available for viewing are: TX power output, receive signal level, slope amplitude stress, and system temperature. Field Changes Changing LO Frequency The RF operating frequencies (transmit and receive) are based on the LO frequency produced by the synthesizer on each RXU.
Page 202: Adding A Scu/Wtu/Owu
Chapter 6 Maintenance Change the appropriate switch settings on the ACU as indicated in Chapter 3. Add modules as required (for example, when going from non-protected to hot standby, add all the B radio modules). Refer to Chapter 5 for a matrix of modules in each con- figuration.
Page 203: Replacing Rf Modules
TX and RX configuration. IMPORTANT: Faulty modules must be returned to Microwave Networks for repair, rather than repaired in the field, since modules use complex integrated circuits. Replacing the TXU Follow the directions below to replace the transmitter unit.
Page 204: Replacing The Rxu
Chapter 6 Maintenance Replacing the RXU Follow the directions below to replace the RXU. Remove the failed RXU. Verify that the spare RXU is the same part number as the failed unit Use the synthesizer module on the failed RXU to set the switch settings on the RXU spare as shown in Figure 6-2.
Page 205: Troubleshooting Charts
Microwave Networks Troubleshooting Charts This section contains the troubleshooting charts for the various radio modules. Charts include: SP/RF PSU.............6-14 SYNDES (Non-Protected)........6-15 SYNDES (Protected) ..........6-16 MUX (Non-Protected) ...........6-17 MUX (Protected) ...........6-18 MOD ..............6-19 TXU ...............6-19 RXU (Non-protected) ..........6-20 RXU (Hot-Standby)..........6-20 RXU Space Diversity ..........6-21 DEMOD (Non-Protected)........6-22...
Page 206 Chapter 6 Maintenance Measure with a DVM the Battery Voltage at the Test Points on the PSU Battery Voltage Check Fuse at Power Replace PSU Distribution Panel Problems Fuse Replace Fuse Done Clear? Measure Battery Voltage at TB1 on the One of the Modules Is Loading Problem Back of the Radio...
Page 207 Microwave Networks In the SYNDES Alarm Screen Check to See if Alarm Is on the TX or RX Side Perform MUX Loopback Is Alarm a DS1 Input Alarm? Check and Repair Alarms External Equipment Problem Likely Clear? and Cabling at Remote Tx...
Page 208 Chapter 6 Maintenance In the SYNDES Alarm Screen Check to See if Alarm Is on the TX or RX Side Check External Problem Likely Both Tx? Both Rx? Equipment and Cabling at Remote Tx Replace SYNDES Replace SYNDES Alarms Done Clear? F-0353 Replace MUX...
Page 209 Microwave Networks Chart 4. MUX (Non-Protected) CM 100Base-T System User’s Manual 7/23/03 Page 6-17...
Page 210 Chapter 6 Maintenance In the MUX Alarms Screen Check to See if Alarm Is on the TX or RX Side Replace MUX Both Problem Likely at Remote Tx Alarms Done Clear? Replace MUX Alarms Done Clear? Replace SYNDES Replace DEMOD F-0355 Chart 5.
Page 211 Microwave Networks Replace MOD Alarms Done Clear? Replace MUX F-0356 Chart 6. MOD Check MOD - TXU IF Cables Cables Replace Replace TXU and Reset Output Power Alarms Done Clear? Replace MOD F-1212 Chart 7. TXU CM 100Base-T System User’s Manual...
Page 212 Chapter 6 Maintenance LO or Replace RXU Alarm? View Check Remote Tx Status. Measurements Check Antenna Alignment and RF Screen Display Connections at Local and Remote Sites Low RSL? Alarms Done Clear? Replace RXU Replace RXU F-1211 Chart 8. RXU (Non-protected) LO or Replace RXU Alarm?
Page 213 Microwave Networks Is It a LO or Replace RXU Alarm? View Measurements Screen Display Low RSL? Check Remote TX Status. Both RSL on Both Check Antenna Alignment and RF or One RXU Connections at Remote Site Replace RXU Check Antenna...
Page 214 Chapter 6 Maintenance Perform IF Loopback Check RXU - DEMOD IF Cable. Check Remote Tx Status. Alarms Check Antenna Alignment and RF Clear? Connections at Local and Remote Sites. Replace Demod Alarms Done Clear? Alarms Done Clear? Replace RXU Replace MUX Alarms Clear? Alarms...
Page 215 Microwave Networks Check Remote Tx. Check Antenna Alarm On Alignment and RF Connections at Local Both? and Remote Sites. Perform IF Loopback Check RXU - Alarms Replace DEMOD IF Cable Clear? Demod Cable Alarms Replace Done Clear? Replace Replace Alarms...
Page 216 Chapter 6 Maintenance Check Remote Tx. Alarm On Check Antenna Alignment and RF Both? Connections at Remote Site Perform IF Loopback Check RXU - Alarms Clear? DEMOD IF Cable Cable Replace Replace Cable DEMOD Check Local Antenna Alarms Done Alignment and RF Clear? Connections Alarms...
Page 217 Microwave Networks No Alarm But Alarms Replace SCU VF/Data Are Bad Perform MUX Loopback Alarm Done Clear? VF/Data Problem at Remote Tx Replace Replace VF/Data Done Replace Problem Done Cleared? Check External VF and Data Cables F-0379 Chart 14. SCU CM 100Base-T System User’s Manual...
Page 218 Chapter 6 Maintenance Alarm No Alarm Replace But VF Does Not Pass Through Perform Local SCU Loopback VF/Data Problem at Remote Tx Replace VF/Data Done Replace VF/Data Done Replace F-0380b Chart 15. OWU Page 6-26 7/23/03 CM 100Base-T System User’s Manual...
Page 219 Microwave Networks RSL? Check Remote Tx Status. Perform IF Check Antenna Alignment Loopback and RF Connections at Local and Remote. Done Perform IF Perform MUX Loopback at Loopback Remote Site Replace Replace DEMOD Perform MUX BER OK at Loopback at...
Page 220 Chapter 6 Maintenance Chart 17. BER Problems (Rx Hot-Standby) Page 6-28 7/23/03 CM 100Base-T System User’s Manual...
Page 221 Microwave Networks RSL? Check Remote Tx. Problem Likely at L ow RSL Check Antenna Alignment Problems Remote Site. Troubleshoot on Both and RF Connections at on Both? Remote Site. Remote Site. Perform IF Check Antenna Alignment Loopback and RF Connections at...
Page 222 Chapter 6 Maintenance Check ACU Alarm Reset Switch S4 Alarm? on the ACU Replace Replace Alarm? Alarm Done Clear? Replace F-0850 Chart 19. NMU Page 6-30 7/23/03 CM 100Base-T System User’s Manual...
Page 223 Microwave Networks Chart 20. Remote Tx Switch Hot-Standby and Space Diversity Rx CM 100Base-T System User’s Manual 7/23/03 Page 6-31...
Page 224 Chapter 6 Maintenance Page 6-32 7/23/03 CM 100Base-T System User’s Manual...
Page 225: Site Engineering
Site Engineering Place any site research or reference material here CM System User’s Manual Page 1...
Page 226: Site Engineering
Site Engineering Page 2 CM System User’s Manual...
Page 227: Appendix A-T/I Curves
10 BER. T/I curves plotting allowable T/I versus frequency offset of the interfering signal are on file with the frequency search companies and are available for all Microwave Networks digital microwave radios. NOTE: Microwave Networks incorporates diagrams into this appendix as they become available.
Page 228 In t e r f e r e r F r e q O f f s e t f r o m C a r r i e r ( M H z ) T / I R a tio L im it lin e Figure A-1. CM7 CW Interference Curve, SP TXU, APC Off 4 0 .0 0 3 0 .0 0 2 0 .0 0 1 0 .0 0...
Page 229: Figure A-3. Cm8 Cw Interference Curve, Dhp Txu, Apc Off
In t e r f e r e r F r e q O f f s e t f r o m C a r r ie r ( M H z ) C /I R a tio Figure A-4. CM8 CW Interference Curve, DHP TXU, APC On CM7/8 100Base-T System User’s Manual Page A-3...
Page 230 Appendix A T/I Curves Page A-4 CM7/8 100Base-T System User’s Manual...
Page 231: Appendix B-Quiklink Screens
Appendix B QuikLink Screens Introduction Appendix B describes the QuikLink menus and screens that display on a VT100/VT220, compatible computer terminal connected to the radio local access port (Chapter 4, Page 4-20). Each screen has an explanation of how to make menu choices, how to move to the next or previous display screens, and how to change radio settings.
Page 232: Screen Layout
Appendix B QuikLink Screen Layout Figures B-1, B-2 (Page B-7), and the following list discusses using screens that may appear on your computer terminal or performance monitoring device connected to the radio local access port. Each screen has a number which allows you to go to that display without scrolling. Screens 001 to 007 show the information screen, top-level menus, and performance statistics.
Page 233: Table B-A. Keyboard/Keypad Functions
Microwave Networks For example, if you are on screen 073 and want to go back to screen 071, type 071 and press Enter (071,↵). The system then displays screen 071. To return to a previously displayed screen, press 0 and Enter (0,↵). Use this method to toggle between the two screens.
Page 234: Index Of Screens
Appendix B QuikLink Monitoring Radio Functions The optional Local Maintenance Terminal (MLN8003A), a VT100/VT220, or an ANSI equivalent computer terminal provides access to radio monitoring and control screens. The terminal connects to the local access port. The local access port, a female DB9 RS232 data connector, connects by serial cable to the communications port of the terminal.
Page 235 Microwave Networks Table B-C. Local Display Screen Index (Continued) Screen Screen Title Description Number Alarm - DEMOD Displays Module status, Service status, VCO, Quadra- ture, and Frame Loss. Alarm - MOD Displays Module status, Service status, Switch Confirm, and I/O LOS.
Page 236 Appendix B QuikLink Table B-C. Local Display Screen Index (Continued) Screen Screen Title Description Number Control and Maintenance Lists Path Switching, Loopback, APC, and Power Ampli- Menu fiers submenus. Transistor-Transistor Logic and Relays. Control - Path Switching Set path switching for TXU-MOD, RXU-DEMOD, MUX- SYNDES, SCU, and WTU.
Page 237 Microwave Networks Screen Menu Flowcharts The following section contains flowcharts (Figures B-2, B-3, B-4, B-5, and B-6) for the local radio maintenance screens. The screens allow for configuring, monitoring, controlling, and troubleshooting operations on the radio. The next subsection illustrates each screen in numerical order.
Page 238 Appendix B QuikLink Alarm & Status SYNDES DEMOD RF PSU Alarms Alarms Alarms Alarms Alarms Alarms Status System ATDE SP PSU Alarms Alarms Alarms Alarms Alarms Alarms Alarm System Tx and Summary Rx Path Status System Alarm Alarms Alarm F-1215 Report Figure B-4.
Page 239: Local Maintenance Screens
Microwave Networks Control and Maintenance Power Path TTL I/O & Loopback/ Amplifier Control Switching Relays Monitoring Control TXU-MOD RXU- DEMOD MUX- SYNDES (Any) Forced Switching F-0138-0 IF/Baseband SYNDES Loopback Loopbacks Loopbacks Clear Loopback Loopbacks Figure B-6. Flowchart - Control and Maintenance Screens Local Maintenance Screens This section illustrates and describes each local maintenance screen in numeric order.
Page 240: Table B-D. Radio Frequency And Capacity
Frequencies Item 3 shows the configuration menu. Telestar 2G, 6G, or CM6 Item 4 shows the menu to set switching path, loopback, APC Telestar 7/8G, 10G, or CM7/8, and CM11 control, and power amplifier control. Capacities 4DS1N 8DS1, 12DS1, 28 DS1, DS3, 3 DS3...
Page 241 Microwave Networks 003 - Performance Monitoring Menu 004 - View Link Performance Monitoring Perf - View Link Last Second >1. View Link A Side B Side 2. View Measurements BER: ----- 1.0e-003 3. View Comm Ports Frame Loss: 4. Reset Link 5.
Page 242 Appendix B QuikLink 005 - View Measurements Screen ES (errored seconds) is a second with one or more parity errors. Perf - View Measurements SES (severely errored second) is any second with parity System Temp 93F(34C) A Side B Side errors greater than 10 Tx Power at Antenna: +20.5dBm...
Page 243 Microwave Networks 006 - Reset Statistics Menu 007 - View Comm Ports Screen Perf - Reset Link Perf - View Comm Ports NMS Port >1. Both Sides Total Err Free Frames Rx: 4294967295 2. A Side Only [93-11-10 08:00] No of Err Frames: 1275 3.
Page 244 Appendix B QuikLink 020 - Alarm and Status Menu 021 - System Alarm Menu Alarm and Status Alarm - SYSTEM >1. SYSTEM 5. MOD 9. RXU 13. WTU >1. Show Alarm Summary 2. SYNDES 6. SCU 10. OWU 14. SCE 2.
Page 245 Microwave Networks 022 - SYNDES Alarm Screen P a g e 2 . 1 0 0 B a s e T A l a r m - S Y N D E S A S i d e B S i d e...
Page 246 Appendix B QuikLink 023 - MUX Alarm Screen Screen Elements Module Status indicates whether the module is operating normally (Normal) or is in alarm (Alarm.) Service Status shows absent, standby, in-service. Absent means the module is required but not installed or an SP fuse is blown.
Page 247 Microwave Networks 024 - DEMOD Alarm Screen 025 - MOD Alarm Screen Screen Elements Module Status indicates whether the module is operating normally (Normal) or is in alarm (Alarm.) Service Status shows absent, standby, in-service. Absent means the module is required but not installed or an SP fuse is blown.
Page 248 Appendix B QuikLink 026 - SCU Alarm Screen 027 - ATDE Alarm Screen Not on radios with 3DS3 or higher capacity. Alarm - SCU A Side B Side Alarm - ATDE A Side B Side Module Status: Normal Normal Service Status: In-Svc Standby Module...
Page 249 Microwave Networks 028 - TXU Alarm Screen Screen Elements Module Status indicates whether the transmitter is operating normally (Normal) or is in alarm (Alarm.) Service Status shows absent, standby, in-service. Absent means the module is required but not installed or an SP fuse is blown.
Page 250 Appendix B QuikLink 029 - RXU Alarm Screen Screen Elements Module Status indicates whether the receiver is operating normally (Normal) or is in alarm (Alarm.) Service Status shows absent, standby, in-service. Absent means the module not installed or an SP fuse is blown. Standby means the module is not in service.
Page 251 Microwave Networks 030 - OWU Alarm Screen 031 - SP PSU Alarm Screen Alarm - OWU Alarm - SP PSU A Side B Side Module Status: Normal Module Status: Normal Normal Service Status: In-Svc Service Status: In-Svc Standby Supply Status:...
Page 252 Appendix B QuikLink 032 - RF PSU Alarm Screen 033 - WTU Alarm Screen Alarm - WTU A Side B Side Module Status: Normal Normal Service Status: In-Svc Standby Switch Confirm: Normal Normal Ch.Input LOS: Normal Normal 033 Esc Alarm - WTU Unit Non-equipped 033 Esc Screen Elements...
Page 253 Microwave Networks 034 - SCE Alarm Screen 035 - Alarm Summary Screen Alarm - SCE Alarm - Alarm Summary Unit Status: In Service SYNDES( TXU (A ) SPPSU( ( B) RXU ( RFPSU( DEMOD ( SCU ( ATDE (AB) OWU (...
Page 254 Appendix B QuikLink 036 - System Alarms Screen 037 - System LED Status Screen Alarm - System Alarms BER (A Side): Major BER (B Side): Minor Tx High APC: Alarm Remote Communication: Normal 036 Esc PgUp PgDn Screen Elements Alarm - System Alarms Normal LED indicates that the summary status alarms are not TXU: APC option not the same at remote needed.
Page 255 Microwave Networks 038 - Alarm Log Menu 039 - Alarm Log Screen Alarm - Report Alarm - Report >Bottom 00060 1999-01-08 06:55:11 E 069 S MUX A >1. View Alarm Log 00061 1999-01-09 08:00:23 m 069 S DEM B 2. Clear Alarm Log[93-11-10...
Page 256 Appendix B QuikLink 040 - TX and RX Path Status 050 - System Configuration Menu Config - SYSTEM Status - Tx and Rx Path 1. Module Parameters Tx: SYNDES-MUX(B) -> MOD/TXU(A) 2. AIS Option 3. Calibrate Tx Power SCU(B) WTU(A) 4.
Page 257 Microwave Networks 051 - System/Module Parameters Screen This screen covers options defined by the SP shelf backplane connections and by the setting of switch S3 on the ACU. (See Chapter 3). NMU version indicates the firmware level of the Network Management System.
Page 258 Appendix B QuikLink 052 - AIS Options Screen 053 -Tx Output Power Calibration Screen This screen allows you to program the SYNDES Rx to output AIS if the BER exceeds 10 . When the AIS feature is disabled, the screen displays NO. Note: For non-protected radios, B side setting is not displayed.
Page 259 Microwave Networks CAUTION! 054 - Date and Time Menu Ensure the off-line TXU, A or B, is physically disconnected from the RF Distribution section. Config - Date and Time Primary path data will be lost if the off-line TXU is...
Page 260 Appendix B QuikLink 057 - 28DS1 SYNDES Configuration Screen Use Screen 057 to set each channel line length or to set the channel as unequipped. Also set line coding for each of the 28 channels. From the line length configuration screen press PAGE UP/DOWN to display the channel you want, and the press ENTER.
Page 261 Microwave Networks 070 - Control and Maintenance Menu 071 - Path Switching Screen Menu Selections Item 1 sets path switching on the TXU-MOD, RXU- DEMOD, MUX-SYNDES, SCU, and WTU switch planes to on or off, and lock (manual) or automatic.
Page 262 Appendix B QuikLink 073 - TTL and Relay I/O Status Screens TTL I/O Status Page 1: TTL I/O Status for NMU Equipped Radio This screen shows radio TTL input status and output control points. Ctrl - TTL I/O Point indicates the four (NMU not equipped) or eight (NMU Point: 1 equipped) TTL input points available for external connection.
Page 263 Microwave Networks 081 - Loopback Monitoring Screen 082 - IF/Baseband Loopback Screen Screen Selections Select 1 for IF (baseband for 7-GHz Telestar) local loopback. Select 2 for MUX local loopback. Select 3 for SYNDES loopback. Select 4 for SCU loopback.
Page 264 Appendix B QuikLink 083 - MUX Loopback Screen 084 - SYNDES Loopback Screen DS1 Radio Configurations Ctrl - Loopback <MUX> Ctrl - Loopback+Monitoring <SYNDES> Local-Loopback Local-Lpbk Monitoring Remote A Side B Side -------------------------------------- ----------------------------- >OFF CH.12 CH.12 >OFF 083 Esc Enter to change state 084 Esc Enter to change states...
Page 265 Microwave Networks 084 - 3DS3-100BaseT SYNDES Loopback 085 - SCU Loopback Screen Screen This screen allows you to set side A or B SCU local and remote loopback On or Off. Notes: For non-protected radios, side B loopback is not dis- played.
Page 266 Appendix B QuikLink 087 - APC Option Menu 088 - Power Amplifier Control Screen This screen allows you to toggle the power amplifier on or This menu allows you to turn APC Off or On for both the A off. and B radios.
Page 267 Microwave Networks CM System User’s Manual Page B-37...
Page 268 Appendix B QuikLink Page B-38 CM System User’s Manual...
Page 269: Introduction
MLN7329 (E1) WTU Jumper Settings ..........C-7 Table C-V. MLN7329 (E1) WTU Switch Settings ...........C-8 Table C-W. NMU Jumper Settings ................C-8 Table C-X. NMU Switch S1 Settings................C-8 Table C-Y. NMU Switch S2 Settings................C-8 CM7/8 100Base-T System User’s Manual 2/25/04 Page C-1...
Page 270: Table C-A. 8209302-00 Configuration Switch Settings
Sets 8DS1 capacity Strapped* Sets 12DS1/8DS1N capacity Strapped* Sets 28DS1,1DS3, 3DS3, 155-Mbps, or 100BaseT capacity E2, 3, 8, 9, 10, 17 Not used *Select only one jumper according to desired channel capacity. Page C-2 2/25/04 CM7/8 100Base-T System User’s Manual...
Page 271: Table C-D. Txu Control Board Mln7973 Jumper Settings
ACO disables audible and visual ACO disables audible only ACU fail causes minor alarm only ACU fail causes major and minor alarm 4-port NMU (NMU Rev. C or later) 3-port NMU (NMU Rev. A or earlier CM7/8 100Base-T System User’s Manual 2/25/04 Page C-3...
Page 272: Table C-H. Acu Dip Switch Settings
Connects I DAC to baseband filter E2, E3, E4, E5 2-position header connectors for factory test Table C-J. DEMOD 8000515-00 Configuration Settings Jumper/Switch Setting Function Normal operation S1-1, 2, 4 Unused S1-3 ATDE Disable Page C-4 2/25/04 CM7/8 100Base-T System User’s Manual...
Page 273: Table C-K. Mux 8000513-00 Configuration Settings
Bypass mode lets the SCU automatically adjust to the pattern and format of incoming data, but is not recommended for use above 2.4 kbps. In Normal operation SCU DIP-switch settings must match the pattern and format of incoming data. CM7/8 100Base-T System User’s Manual 2/25/04 Page C-5...
Page 274: Table C-O. Owu Jumper Settings
1-3, 3-4 Factory test DS1 channel - AMI line code DS1 channel - B8ZS line code Asynchronous data channel receiver enabled Asynchronous data channel receiver disabled Note: Channel unavailable in SDH Radio Page C-6 2/25/04 CM7/8 100Base-T System User’s Manual...
Page 275: Table C-R. Mln7330 Wtu Switch Settings
E1 Channel #1 Equipped E1 Channel #1 Not Equipped Normal Operation 1-3, 2-4, 3-4 Factory Test Not used Not used E1 Channel #1 - AMI Line Code E1 Channel #1 - HDB3 Line Code CM7/8 100Base-T System User’s Manual 2/25/04 Page C-7...
Page 276: Table C-V. Mln7329 (E1) Wtu Switch Settings
Rocker 7 Rocker 8 Site Master Open Closed Open Closed Closed Slave Open Open Open Open Open 4-Port Bridge* Open Open Open Open Open * On NMU part number MLN7481C or later Page C-8 2/25/04 CM7/8 100Base-T System User’s Manual...
Page 277 Appendix D Alarm Codes Introduction System software uses alarm codes to simplify alarm logging. Alarm codes identify control, event, and status information, as well as, system switching, performance measurements, and conditions at monitored points. Alarms may indicate direct hardware conditions and events, or may be summed creating a derived alarm.
Page 278 Appendix D Alarm Codes Table D-A. Alarm Codes (Continued) Code Definition Type Used LMT Display MOD +5 Volt Supply Minor +5V Supply MOD -5 Volt Supply Minor -5V Supply MOD DAC I Output* Minor DAC I Output MOD I FIR Alarm** I FIR Alarm MOD DAC Q Output* Minor...
Page 279 Microwave Networks Table D-A. Alarm Codes (Continued) Code Definition Type Used LMT Display ATDE IQ+1 Minor IQ+1 Rates ATDE QI+1 Minor IQ+1 Rates ATDE IQ+2 Minor DS3/E3 None ATDE QI+2 Minor DS3/E3 None SP PSU 24 or 48 Volt Battery...
Page 280 Appendix D Alarm Codes Table D-A. Alarm Codes (Continued) Code Definition Type Used LMT Display 101 OWU Failure Minor Hardware Failure 102 SYNDES Card Present Minor Module State 103 MUX Card Present Minor Module State 104 MOD Card Present Minor Module State 105 DEMOD Card Present Minor...
Page 281 Microwave Networks Table D-A. Alarm Codes (Continued) Code Definition Type Used LMT Display 147 NMU TTL Input - Point 4 Event Point: 4, Input Status 148 ACU TTL Input - Point 5 Event Point: 5, Input Status 149 ACU TTL Input - Point 6...
Page 282 Appendix D Alarm Codes Page D-6 5/02/05 CM 100Base-T System User’s Manual...
Page 283: Table E-A. Synthesizer Oscillator Frequency Ranges
Setting Frequency Switches Introduction The CM7/8 Synthesized Oscillator provides the local oscillator (LO) signals for the conversion process on both the receiver and transmitter. The oscillator operates in one of eight bands. Table E-A lists the synthesizer modules and their associated frequency operating range.
Page 284 7622.84 MHz. If necessary, toggle switch S3 in order to reverse the direction of frequency adjustment. The frequency switches are now set properly for 7622.84 MHz. Page E-2 CM7/8 System User’s Manual...
Page 285: Table E-B. Cm7 Synthesizer Switch Settings In 20-Mhz Increments
Microwave Networks Table E-B. CM7 Synthesizer Switch Settings in 20-MHz Increments 20-MHz Synthesizer A (binary) Increments (binary) 8159A 7840 7860 1000 7820 7840 1001 7800 7820 1010 7780 7800 1011 7760 7780 1100 7740 7760 1101 7720 7740 1110 7700...
Page 286: Table E-C. Cm7 Switch Settings, 2 Mhz Increments
Appendix E Setting Frequency Table E-B. CM7 Synthesizer Switch Settings in 20-MHz Increments 20-MHz Synthesizer A (binary) Increments (binary) 8156A 7220 7240 0111 7200 7220 1000 7180 7200 1001 7160 7180 1010 7140 7160 1011 7120 7140 1100 7100 7120...
Page 287: Table E-D. 7-Ghz Synthesizer Frequency Bands
E-C lists 2-MHz increments set by area F of S1. The example on Page 2 describes how to use these tables to set synthesizer frequency. NOTE Before adjusting synthesizer frequency, ensure that the system has had sufficient time to reach its normal operating temperature. CM7/8 System User’s Manual Page E-5...
Page 288: Figure E-2. Cm8 Synthesizer Switch Arrangement
00111 1110 8340 8360 00111 1111 8320 8340 01000 0000 8300 8320 01000 0001 8280 8300 01000 0010 8260 8280 01000 0011 8240 8260 01000 0100 8220 8240 01000 0101 8210 8220 01000 0110 Page E-6 CM7/8 System User’s Manual...
Page 289: Table E-F. 8-Ghz Synthesizer Frequency Bands
8280 8210 MLL8162 8370 8300 high 8460 8390 MRL8172 8 - 3 ƒRF<ƒLO 8140 8210 MLL8162 8230 8300 high 8320 8390 MRL8173 8 - 4 ƒFRF<ƒLO 8320 8390 MLL8163 8410 8480 high 8500 8570 CM7/8 System User’s Manual Page E-7...
Page 290 Appendix E Setting Frequency Page E-8 CM7/8 System User’s Manual...
Page 291: What Is Cm Snmp
A MIB is a standard set of definitions (structure and format) for exchanging informa- tion about the network components. Microwave Networks’ MIB is a private MIB for the CM radio. The SNMP option adapts the alarms and commands used by the Status and Control Extender (SCE) for use by the SNMP manager.
Page 292: Snmp Option Components
CM SNMP SNMP Option Components Tables F-A lists the CM SNMP components that Table F-B describes. Use the CM SNMP hardware upgrade kit, PN 8708231-00, to convert existing CM radios with Microwave Network’s proprietary network management to SNMP. Table F-A. SNMP Components System Computer CM SNMP Hardware CM SNMP Software...
Page 293: The Snmp Nmu (Network Management Unit
Microwave Networks The SNMP NMU (Network Management Unit) The SNMP NMU (Figure F-2) mounts on the ACU and acts as the SNMP agent. The NMU collects management data from its radio and, on request from an SNMP manager, distributes the data through the network to the manager. The NMU automati- cally sends critical radio errors, called traps, to the SNMP manager.
Page 294: Layout Of A Cm Snmp Network
CM SNMP Table F-D. SNMP NMU LED Descriptions Name Function LINK Indicates that the Ethernet link is plugged into a valid network Polarity Reverse – indicates reversed polarity at the Ethernet Rx Jabber – indicates linking communication has been established Collision –...
Page 295: Installing Hardware
Microwave Networks Modem PSTN INTF1 (interface 1) — 10BaseT INTF2 (interface 2) — 64 kbps LAN/WAN Ethernet Ethernet 10BaseT Management Station IP Address 2 IP Address 1 Radio SERVER & INTERMEDIATE INTF1 INTF1 INTF2 INTF2 GATEWAY IP Address 6 IP Address 5...
Page 296: Connecting Cables
CM SNMP Connecting Cables After installing the CM radio, connect cables from your Ethernet network to the radio and make the following connections as this section details. • 10BaseT port to the network • Network interface SCE port to the radio SCE connector •...
Page 297: Local Access Port
Microwave Networks Table F-H. SCE Cable Pin Assignments SCE Network Jack SCE Modular Conn. Pin 1 at left Pin 1 at top Signal Signal SCE OUT DATA INPUT SCE IN DATA OUTPUT Jumper cable connections Local Access Port The DB9 local access connection provides a 9600-bps serial interface to the NMU from a VT100 compatible terminal for local configuration.
Page 298: Installing Software
The radio must have ACU Rev. E and ACU software version A10 or later for SNMP. The diskette included in the CM SNMP installation kit contains Microwave Networks’ private MIB (P/N 4600027-00). Open the MIB file in a text editor to view more infor- mation about the management options (including the list of traps generated by the SNMP NMU.
Page 299: Figure F-5. Example Of Setup-Ppp Entries
Microwave Networks server as Figure F-6 shows. • Set RIP to let radios exchange IP information so that all network devices deter- mine how to reach any other device in the network. You can also manually edit routing information for smaller networks.
Page 300: System Operation
Refer to the tutorials, help, and documentation of your specific management software. Microwave Networks MIB The CM SNMP MIB contains groups of variables that specify the structure and format for CM radio management data. The following text explains these variables.
Page 301: Performance Table
Microwave Networks Figure F-7. CM SNMP MIB Tables Performance Table Table F-J lists and describes the variables available from the performance table (perfT- able). Use the tools of your specific SNMP management application to display a MIB table window or graph for the selected variables.
Page 302: Configuration Table
CM SNMP Configuration Table Select the configuration table to display or edit the radio configuration settings. Use your specific SNMP manager to manipulate selected MIB variables. Table F-K. MIB Configuration Table (confTable) Variables Table Description confTable – To expand, click + confID –...
Page 303: Cm Snmp Traps
Microwave Networks CM SNMP Traps This folder shows the available CM SNMP traps that are internal system variables. Traps are the unsolicited critical radio data automatically sent from the agent (NMU) to the manager. Traps modes works in one of three settings: no traps, terse (send A or B side summaries only), and verbose (send a trap on any alarm change).
Page 304: Telnet
CM SNMP Telnet The following material describes the Telnet commands and their responses. Use Telnet to perform the following tasks: • Retrieve performance data • Set or modify parameters • View monitored alarms • Perform diagnostic tests or monitor test results Security Note You need administrative-level access to modify radio parameters.
Page 305: Telnet Commands
Microwave Networks Telnet Commands Type Help at the Telnet command line for a list of commands supported by CM SNMP (Figure F-9). Table F-N defines the Telnet commands. Telnet commands for the CM SNMP radio are organized into the same four functions as the MIB: performance, configuration, fault, and diagnostic.
Page 306: Telnet Command Usage
CM SNMP Telnet Command Usage This command (address resolution protocol) responds to its options as follows: arp host Displays the entered host IP address. arp –a Displays all of the current arp entries from the arp table. arp –d host Deletes an arp table entry identified by host name.
Page 307 Microwave Networks download This command updates NMU firmware with the latest system software. Download requires administrative-level access. You must know the IP address of the local TFTP host server, which the device sending the updated file. This command can update NMU firmware on the addressed radio.
Page 308 CM SNMP ping –s host The –s option sends datagrams containing specified datagram size in bytes. Count specifies number of bytes/datagram, and timeout specifies time duration of transmission. reboot After changing parameters issue the reboot command to update the NMU. Requires administrative-level access to execute.
Page 309: Index
IF cabling carrier frequency test 2-16 IF local loopback channel capacity 2-17 checking frequency installation 4-15 installation kit computer/terminal installation 3-1-12 installation kits configuration tables Interference Considerations interference considerations CM7/8 100Base-T System User’s Manual Page I-1...
Page 310 RF Modules 3-15-5 switches RF Power Supply Unit 2-4, 3-5-1 Non-protected/Non-protected configuration RF PSU 3-5-3 RF PSU features 3-1-12 RF shelf backplane 3-13-1 5-12 Orderwire Unit RF Tx fade margin check 3-13-1 5-13 CM7/8 100Base-T System User’s Manual Page I- 2...
Page 311 SYNDES module 2-12 SYNDES-MUX switch plane, receiver 2-11 SYNDES-MUX switch plane, transmitter System Block Diagram system configuration system gain system temperature T/I curves 1-8, A-1 T/I ratio T/R frequency separations terminal block CM7/8 100Base-T System User’s Manual Page I- 3...
Page 312 Microwave Networks CM7/8 100Base-T System User’s Manual Page I- 4...

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Microwave networks CM7 User Manual

Chapter 1-General Information

Chapter 2-Principles Of Operation

Chapter 3-Module Descriptions

Section 3-1-Radio Cabinet

Section 3-2-RF Distribution

Transmitter Unit (TXU)

Section 3-4-Receiver Unit (RXU)

Section 3-5-RF Power Supply Unit (RF PSU)

Section 3-6-SP Power Supply Unit (SP PSU)

Section 3-7-Alarm and Control Unit (ACU)

Section 3-8-Modulator (MOD)

Section 3-9-Demodulator (DEMOD)

Section 3-10-Multiplexer (MUX)

Section 3-11-Synchronizer/Desynchronizer (SYNDES)

Section 3-12-Service Channel Unit (SCU)

Section 3-13-Orderwire Unit (OWU)

Section 3-14-Wayside Traffic Unit (WTU)

Section 3-15-Network Management Unit (NMU)

Chapter 4-Equipment Installation

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Summary of Contents for Microwave networks CM7