MDS LEDR 400S Installation & Operation Manual
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MDS LEDR 400S Installation & Operation Manual

Ledr series, digital microwave radios
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Microwave Data Systems Inc.
LEDR Series
Digital Microwave Radios
Covering LEDR 400S/F, 700S, 900S/F, 1400S/F Models
Including Protected (1+1) and Space Diversity Versions
P/N 05-3627A01, Rev. D
JANUARY 2003

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  • Page 1 Microwave Data Systems Inc. LEDR Series Digital Microwave Radios Covering LEDR 400S/F, 700S, 900S/F, 1400S/F Models Including Protected (1+1) and Space Diversity Versions P/N 05-3627A01, Rev. D JANUARY 2003...
  • Page 2 QUICK-START GUIDE LEDR Series radios are supplied from the factory in matched pairs and are configured to user’s specifi- cations. There are a few steps necessary to place the pair on-the-air communicating with each other. Once this is done, system-specific parameters will need to be reviewed and changed to match your requirements.

  • Page 3: Table Of Contents

    Protected Configuration Connections .................... 23 3.7 Bandwidths, Data Rates and Modulation Types ................23 3.8 Transmit Clock Selection (Subrate Radios Only) ................. 24 4.0 INITIAL STARTUP AND CONFIGURATION ............... 25 4.1 Introduction ..........................25 MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 4 7.0 STANDARDIZING RADIO CONFIGURATIONS..............90 7.1 Introduction ..........................90 7.2 Setup by TFTP ..........................91 Finding IP Addresses........................91 Downloading Procedure......................... 91 Uploading Procedure ........................91 7.3 Setup Through the DB-9 CONSOLE Port ................... 92 LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 5 RxB ..............................106 Antenna............................106 TxA...............................106 TxB...............................106 Protected (Data)...........................106 E1..............................106 Ethernet ............................106 530 (A&B) ............................106 EIA-530-A ............................107 Service Channel ..........................107 11.5 Inter-Unit Cabling for Protected Stations .................107 11.6 Configuration Commands for a Protected System ..............108 MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 6 15.2 Filter Removal and Replacement ....................120 15.3 Software Commands .......................122 16.0 BENCH TESTING OF RADIOS ..................122 17.0 TECHNICAL REFERENCE..................... 123 17.1 Specifications— Models: LEDR 400S, 700S, 900S and 1400S ...................123 17.2 Specifications— Models: LEDR 400F, 900F, 1400F .....................125 17.3 Specifications— Protected Switch Chassis ........................126 17.4 Optional Equipment (Consult factory for detailed information) ..........126...
  • Page 7 4.34 meters of the antenna. This is a worst case scenario derived from maximum permissible exposure evaluation for General Population/Uncontrolled Exposure using maximum permitted antenna gain (30 dBi) for LEDR Series MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 8 Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 9: Introduction

    1.0 INTRODUCTION This manual is intended to help an experienced technician install, con- figure, and operate one of the digital radios in the MDS LEDR Series: 400S/F, 700S, 900S/F or 1400S/F. The manual begins with an overall description of product features and is followed by the steps required to install the radio and place it into normal operation.

  • Page 10: Ledr Features

    • Voice Orderwire (DTMF compliant) • Service Channel (Data) • Subrate Models—LEDR 400S/700S/900S/1400S • 64, 128, 256, 384, 512* and 768* kbps Data Rates • 12 x 64 kbps Data Rate with the FT1 or FE1 Interface Board (LEDR radio with optional PCB installed) * Contact factory for availability of these rates on the LEDR 700S.

  • Page 11: Typical Applications

    Additional details for Protected Config- urations are given in Section 11.0 on Page 103. Invisible place holder Figure 2. LEDR Protected Switch Chassis (PSC) MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 12: Model Number Codes

    10 and 11. 8 = Space Diversity E1/Fract. E1 2.TX and RX frequency separation is 27 MHz (minimum) * Available in subrate radios Figure 3. LEDR 400 Series Model Number Codes LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 13 1.TX and RX frequencies are limited to the range of the 7 = Space Diversity T1 8 = Space Diversity; Fractional-E1 * = Available in subrate radios % = Available in fullrate radios Figure 4. LEDR 900 Series Model Number Codes MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 14 * With Modes N, 2 8 = Space Divers. E1/Frac. E1 * With Modes N, 2 @With Modes 3–8 @With Modes 3–8 * Available in subrate radios Figure 5. LEDR 1400 Series Model Number Codes LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 15: Hardware Installation And Basic Interface Requirements

    There are four main requirements for installing the radio transceiver—a suitable installation environment, adequate and stable primary power, a good antenna system, and the correct interface between the transceiver and the external data equipment. Figure 6 shows a typical station arrangement. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 16: Site Selection

    A line-of-sight path can often be achieved by mounting each station antenna on a tower or other elevated structure that raises it to a level sufficient to clear sur- rounding terrain and other obstructions. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 17: On-The-Air Test

    A white paper (publication no. 05-3638A01) on the subject is available from MDS at www.microwavedata.com. Search for the term “LEDR” under the manuals download area to see this, and all other pub- lications pertaining to the LEDR series.

  • Page 18: Antenna And Feedline Selection

    In most cases, a directional “dish” type of antenna is used with the radio (Figure 7). Dish antennas maximize transmission efficiency and restrict the radiation pattern to the desired transmission path. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 19: Feedlines

    24.95 dB 28.0 dBi 32.1 dBi (12 feet) MDS can furnish antennas for use with your LEDR radio. Consult your sales representative for details. Feedlines For maximum performance, a good quality feedline must be used to connect the radio transceiver to the antenna. For short-range transmis-...
  • Page 20 1/2 in. HELIAX 0.7 dB 1.5 dB 2.9 dB 5.9 dB 7/8 in. HELIAX 0.4 dB 0.8 dB 1.7 dB 3.3 dB 1-5/8 in. HELIAX 0.3 dB 0.3 dB 1.1 dB 2.1 dB LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 21: Radio Mounting

    NOTE: Both short and long screws are provided with the brackets. Use the long screws for the heatsink (left) side of the chassis and the short screws for the right side of the chassis. Tighten the screws securely. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 22: Front Panel

    Use of the navigation keys (Figure 9) is simple, and allows many basic operating tasks to be performed without connecting an external terminal or using additional software. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 23 A good example is entering a password at the user login menu. In this example, the string is built one character at a time, and the string is built from left to right on the display. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 24: Connectors

    The orderwire is used by service personnel to com- municate through the Service Channel to coordinate system activities with personnel at another site in the network. The orderwire will not interrupt the normal data flow through the LEDR data communication LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 25: Rear Panel Connectors

    DC PRIMARY DATA CONNECTOR POWER ANTENNA SYSTEM CONNECTORS ALARM INPUT & OUTPUT Note: RX Connector present with external duplexer only. Figure 11. LEDR 400S/700S/900S/1400S Rear Panels (Shown with Optional FT1/FE1 Interface PCB Installed) MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 26: Ground Stud

    When an external duplexer is used, ensure that the higher frequency (transmit or receive) is connected to the duplexer connector marked and the lower frequency (transmit or receive) is connected to the duplexer marked LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 27: G.703/Expansion Data

    Ethernet hub. This inter-chassis Ethernet connection must be made in order for the Orderwire and Ser- vice Channel to function properly. (See Figure 13 on Page 21 for further information.) MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 28: Eia-530-A

    NOTE: Use of the orderwire will slow down data communications on the Service Channel. It will not effect data traffic on the primary data interface. For detailed information on this 9-pin connector, see “Service Channel—Rear Panel” on Page 129. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 29: Alarm I/O

    Another example is to use the alarm outputs to drive the inputs of an external monitoring system. (See the list of radio events for more options.) These outputs are not suitable for data interface without the use of an external “debouncing” circuit. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 30: Dc Power Input (Primary Power)

    Table 9 lists the actual operating voltage ranges. The connector matches with a power plug (MDS Part No. 73-1194A22) which contains binding posts for attaching the positive and negative power leads. The polarity of the power connections does not matter; the...

  • Page 31: Protected Configuration Connections

    16-QAM 100 kHz 64 kbps QPSK 128 kbps QPSK 256 kbps 16-QAM 200 kHz 64 kbps QPSK 128 kbps QPSK 256 kbps 16-QAM 384 kbps 16-QAM 512 kbps 16-QAM 768 kbps 32-QAM MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 32: Transmit Clock Selection (Subrate Radios Only)

    To do so may cause the transmitting radio’s PLL to be pulled out-of-lock, especially when oper- ating at 4E1 data rates. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 33: Initial Startup And Configuration

    R R R R S S S S S S S S I I I I : : : : - - - - 6 6 6 6 0 0 0 0 d d d d B B B B m m m m NOTE: The LEDR radio is normally keyed continuously, and the radio will transmit whenever power is applied. Ensure there is a suit- able load on the antenna connector before connecting power. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 34: Step 2-Establish Communications With The Radio

    • SNMP Network Management System—The SNMP agent interface is opti- mized to fulfill the fault configuration, performance and user access require- ments of the LEDR radio system. A separate manual, MDS P/N 05-3532A01 explains SNMP in more detail. 4.4 STEP 3—Make Initial Login to Radio When the radio is first powered up, it defaults to a read-only condition.

  • Page 35: Step 4-Change The Super Password

    Command Complete 4. Set up user accounts as required beyond the factory default of SUPER. Create accounts, set permission levels, or delete accounts as desired MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 36: Step 5-Review Essential Operating Parameters

    • Radio set to unframed (default). • Make changes as appropriate using fstruct command Page 59 ) to match interface equipment. Line Code Set as appropriate using linecode Page 66 command ( LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 37: Step 6-Set Tcp/Ip Settings To Enable Snmp And/Or Telnet Management (If Required)

    Figure 15 shown on the following pages is a pictorial view of the front panel menu tree. Detailed explanations of the screens are follow in Section 5.1, Front Panel LCD Menu Descriptions. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 38 < < < < n n n n o o o o n n n n e e e e > > > > • Redundant screens visible only on protected/redundant stations. Number Enter • See Redundant screen description for additional displays (Page 41). LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 39 Use the keys to scroll through all available characters. Press the key again to ENTER save the displayed character in displayed location. Figure 15. Front Panel LCD Menu Navigation MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 40: Front Panel Lcd Menu Descriptions

    S S S S t t t t a a a a r r r r t t t t ? ? ? ? loopback important information. For the NMS command-line see “test” on equivalent, Page 82 LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 41: Front Panel

    E E E E r r r r r r r r o o o o r r r r e e e e d d d d dard defines Errored Seconds as a one second period in which one or 0 0 0 0 more bits are in error. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 42: General

    For the NMS command-line see “ver” on equivalent, Page 87 LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 43: Io Configuration

    For the NMS command-line see “date” on equivalent, Page 57 NOTE: For subrate models: LEDR 400S/900S/1400S Earlier versions of the software may display the Clock Mode instead of NORMAL INTERNAL This screen is used to set or display the payload data interface. The...

  • Page 44: Line Configuration

    O O O O F F F F F F F F enabled, AIS/RAI signaling at the line interfaces will be detected and passed to the other end of the radio link. For the NMS command-line see “ais” on equivalent, Page 49 LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 45 The available selections are: 1 to 133 feet (Default) 133 to 266 feet 266 to 399 feet 399 to 533 feet 533 to 655 feet For the NMS command-line see “line” on equivalent, Page 65 MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 46: Login

    B B B B i i i i t t t t E E E E r r r r r r r r o o o o r r r r R R R R a a a a t t t t e e e e < < < < 1 1 1 1 x x x x 1 1 1 1 0 0 0 0 - - - - 6 6 6 6 LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 47: Network

    ETHERNET NMS nector. This type of communication uses the SNAP protocol and requires the use of an ethernet crossover cable. For the NMS command-line see “ip” on equivalent, Page 63 MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 48: Orderwire

    + + + + 2 2 2 2 7 7 7 7 d d d d B B B B quality of the radio signal. For the NMS command-line see “snr” on equivalent, Page 81 LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 49: Redundant

    0 0 0 0 0 0 0 0 0 0 0 0 ..0 0 0 0 0 0 0 0 0 0 0 0 ..0 0 0 0 0 0 0 0 0 0 0 0 ..0 0 0 0 0 0 0 0 0 0 0 0 (IP) address. (See note below.) MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 50: Remote Status

    R R R R x x x x F F F F r r r r e e e e q q q q u u u u e e e e n n n n c c c c y y y y For the NMS command-line see “freq” on equivalent, Page 59 LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 51: Configuration And Control Via The Console Port

    NOTE: It is important to use a terminal or terminal-emulator that supports 80 characters-per-line and 25 lines-per-screen. The display will be distorted if terminals with different line charac- teristics are used. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 52: Initial Connection To The Console Port

    ENTER These “recall” techniques are especially useful for commands con- taining a long string of characters, such as IP addresses or other config- uration data. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 53 Show/Reset G.821 information Page 60 group Set/display network group Page 60 help or ? Displays the available NMS commands. May also Page 48 be entered after any other command to obtain context sensitive help. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 54 Page 76 rfocal Set/display RF power output calibration sequence Page 76 rfout Displays transmit power Page 77 rlogin Log in to remote radio Page 77 route Add/delete/modify IP routing table entries Page 77 LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 55 Displays the currently logged in radio Page 88 users/accounts NOTE: The NMS commands listed in this manual show the full set of commands for all radio versions. Different hardware configu- rations may have fewer selections. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 56: Command Detailed Descriptions

    This command returns a list of currently available commands. In addi- tion, entering as a subcommand before or after a command returns usage information regarding the command. Command Example: ENTER ?rssi Returns: Usage: command [subcommand] <argument> LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 57 When the modem is locked, and the input is removed from one end, you will get all-zeros at the other end unless AIS generation is enabled. Yellow alarms/RAI are not generated MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 58 [open|closed] which are assigned to them. —Create a user defined “name” for each alarm. No name [name_string] spaces, 16 characters maximum; not compatible with “ ”. Command Example #1: alarm in all LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 59 IP addresses of which the radio is aware. It can also be con- figured to “spoof,” or proxy, for other (non-LEDR) devices that are managed using the radio’s out-of-band Service Channel and directly MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 60 If none is included in the command, the last-used pattern will be implemented. Disable bert generation/monitoring for line(s) Inject error. Index specifying type of error to inject. If no error is specified, last error selected is used. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 61 Change of frame alignment, 1 bit minus Change of frame alignment, E1, 1 bit plus CRC6 for T1, CRC4 for E1 Frame bit error...Ft, FPS, or FAS bit error depending on current framer mode Linecode violation MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 62 Subcommands: Boot from Image 1 Boot from Image 2 Boot from the active (same) image Boot from the inactive (other) image Buzzer buzzer Usage: buzzer LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 63 . Note that at least one end of the link clkmode internal should have either network or internal timing selected. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 64 —Download entire radio configuration file from host getall (including all radio-specific data) Radio-specific data includes IP address, network settings, frequencies, target power thresholds, calibration data, and IP routing table. Command Example: config send config.txt 192.168.1.14 LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 65 Ethernet port. This address is globally unique; it is assigned at the fac- tory and cannot be changed. Events events Usage: events [subcommand] [<arguments>] Subcommands: pending filter [event#] [count] init desc [<event#>] MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 66 Page 129 for the pinouts of the connector and ALARM I/O Disabling the Front Panel Alarm LED for Unused E1 Option Ports Page 88 for further information. Forward Error Correction Statistics Usage: [fec <clear>] LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 67 8 In Fractional-E1 mode timeslot 0 is always sent, and for fstruct modes 4 through 7, timeslot 16 must be added to the payload list for proper oper- ation. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 68 Example Response: Demodulator: ERROR FREE Savail: 1036 Sunavail: 0 ES: 0 SES: 0 Group Number in LEDR System group Usage: Group [<0-99>] LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 69 This is typically used to update the inactive image after loading new firmware and rebooting the radio from the new image. To view or change the active firmware image see “boot” on Page Idle Pattern idlepat Usage: idlepat [<linelist>] [slots <slotlist>] <pattern> MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 70 T1 or E1 interface modes. The system will recommend a reboot and provide a prompt to do so. This command must be properly set, or no communication will be possible. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 71 If low latency is required, then the interleave can be changed, but the ability to correct for the influence of burst-noise on the BER will be reduced. Internet Protocol Settings Usage: ip [subcommand] [<argument>] MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 72 ) should flash in sequence. POWER Press Control-C to end the test. (See “Disabling the Front Panel Alarm LED for Unused E1 Option Ports” on Page 88 for further information.) Command Example: led alarm on LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 73 The only cable specification needed for E1 is the ITU cable type. lists the specification values for two standard 120 Ω ITU-T Table 23 G.703 cables Table 23. E1 Cable Specifications—Subcommand [spec] Specification g.775 (Default) i.431 MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 74 1d 2b 3a 4c maps line 1 to span d maps line 2 to span b maps line 3 to span a maps line 4 to span c LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 75 (i.e., 1–4), or if linelist is not given all lines will be dis- played. See Table 19 on Page 59 for a list of line numbers. Log of Events MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 76 Type: (password) NOTE: User names and passwords must not exceed eight characters and are case sensitive. Do not use punctuation marks. command on Page 86 for more information on user access user levels. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 77 MUX local loopback in the radio transceiver’s FT1 Interface Board before going out to the main transceiver board. —Disables all loopback operation. This is the mode for normal none point-to-point operation. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 78 60 minutes. Usage 2: loopback [inb|outb] [linelist] [on|off] [-u <code>] [-d <code>] Usage 2 (E1) subcommands: —Refers to the inband loopback configuration. —Refers to the outband Extended Super Frame (ESF) loopback outb configuration. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 79 — — 32 QAM 1. The available selections depend on the radio’s factory programmed bandwidth. See Table 10 on Page 23 for the allowable combinations of bandwidth, data rates and modulation types. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 80 Channel for Orderwire and Element Management System (EMS) diag- nostics. Example Response: Network Netmask Ethernet Received Address Hops Hops on Port Owner 10.2.142.148 255.255.0.0 LPBK Tech Serv 1 10.2.200.196 255.255.0.0 Tech Serv 2 Password passwd Usage: passwd LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 81 RF output power or fre- quency stability using a spectrum analyzer. Example Response: pmmode: off NOTE: Enabling the power measurement mode ( ) will take pmmode on the local link down (out-of-service). MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 82 (sibling) radio in a redundant pair of transceivers. In other words, the setting of the top radio in a protected pair must rdnt ip be set to the bottom radio’s IP address for proper switching and net- work-management functionality. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 83 (i.e., 1–4), or if linelist is not given all lines. See Table 19 on Page 59 for a list of line numbers. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 84 This command starts the Calibration Sequence and should only RFOUT be used when directed by MDS factory personnel. CAUTION:This command is used to recalibrate the internal transmitter power output metering circuitry and may affect the accuracy of the power output level measurement. Contact the Technical Services Department at MDS for further instructions before using this command.
  • Page 85 IP address. Primary Commands: —Show the current IP routing table print —Add/Change a route add [address] mask [netmask] [gw] [port] MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 86 255.255.255.255 10.2.150.101 10.2.140.0 255.255.255.0 10.2.227.51 Example 3 Entry: LEDR> route print Example 3 Response: Destination Net Mask Next Hop Interface 0.0.0.0 0.0.0.0 0.0.0.0 10.2.140.0 255.255.255.0 10.2.227.51 10.2.150.1 255.255.255.255 10.2.150.101 127.0.0.1 255.255.255.255 10.2.227.5 LPBK LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 87 LEDR radio is removed for servicing, all the routing information must be programmed in the remaining radio for proper IP management functionality. rssi Received Signal Strength Indicator Usage: rssi MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 88 CAUTION:This command should never be used unless calibrated test equipment has shown the radio to have inaccurate RSSI calibration. Contact the Technical Services Group at MDS for further instructions before using this command. Example entry: rssical Example Response: Region 0 Index 0, RSSI = –110 dbm, Gain = –104...
  • Page 89 Usage: status This command is used to display key performance and configuration data. Example Response: status {Tx Freq}:438075000 status {Rx Freq}:428075000 status {Bandwidth}:100 kHz status {Data Rate}: 256 kbps status {Interleave}: 1 MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 90 CAUTION POSSIBLE CAUTION:Do not perform a transmitter PLL test while the radio is EQUIPMENT DAMAGE keyed, or the radio’s receive LNA may be damaged. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 91 LEDR unit’s transmit frequency and the incoming RF signal from the other LEDR radio. —Power amplifier temperature above which an alarm condition is temp generated. —Number of errored seconds within the last 15 minutes. 15mines MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 92 If rearrangement of timeslots is desired, some simple rules must be fol- lowed when CAS framing is used. Refer to the chart below for this dis- cussion, where “TS” = “Timeslot”: TS00 TS01–TS15 TS16 TS17–TS31 LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 93 1 = 10.2.129.22 trapmgr: 2 = 0.0.0.0 trapmgr: 3 = 0.0.0.0 trapmgr: 4 = 0.0.0.0 trapmgr: 5 = 10.2.129.1 trend Trend of RF Performance Indicators Usage: trend [<rssi|temp|rfout|snr|fec|ifec|time|all>] [<display time (msec)>] MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 94 Two quotation mark charac- ters ("") may be used as a “blank” password. If quotation marks are used, the shift key or cap lock keys must be depressed. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 95 {Hardware version}: A Example 3: LEDR> ver ext Response 3: ver: Part #06-3451A01 ver: 2.4.3 ver: ver: Image 1 ver: Region Expected Upgrade ver: Firmware 2.4.3 ver: DSP 1.1.0 ver: FPGA Ver1.22 MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 96: Disabling The Front Panel Alarm Led For Unused E1 Option Ports

    E1 port number. When alarm events are pending, the alarm condition for the unused E1 ports remains until a valid input signal (as defined by G.703) is applied. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 97 Evmap led 109 none Evmap led 122 none Evmap led 110 none Evmap led 123 none Evmap led 111 none Evmap led 124 none Evmap led 112 none Evmap led 125 none MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 98: Standardizing Radio Configurations

    IP addresses. command allows the user to upload/download the radio’s config configuration data from/to a PC. There are two classifications of config- uration data—radio-specific data and standard data. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 99: Setup By Tftp

    To upload into a LEDR radio only the standard configuration data from a file on the PC (filename.txt) to the radio enter the following command: LEDR> config get [filename.txt] [1.2.3.4 <IP Address>] MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 100: Setup Through The Db-9 Console Port

    To upload the data to the Port: CONSOLE LEDR> config send console To download only the standard data via the Port: CONSOLE LEDR> config get console To download standard and radio-specific data: LEDR> config getall console LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 101: Upgrading Ledr Firmware

    LEDR radio. These applications are available from Microwave Data Systems on floppy disk (P/N 03-3631A01) or on the FTP section of the MDS Internet site at www.microwavedata.com. The following sections will explain how to program new firmware into the radio using each of the three connection options.

  • Page 102: Option 1: Uploading Firmware Via The Console Port

    The Port supports RS-232 at 9600 bps to 115200 bps. CONSOLE Download Procedure 1. Start the MDS MDS Flash Utility application. 2. From the menu, select the appropriate COM Port and View>Options baud rate. Ensure that...

  • Page 103: Option 2: Uploading Firmware Locally By Telnet Via Ethernet

    Ethernet connection. To find the IP address of your Windows computer, refer to Finding IP Addresses on Page 91. The IP address of the radio can be determined using the radio’s command. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 104: Setup

    PC. For example, c:\windows\LEDR\Firmware V2.5\ This directory path will be used later by the TFTP server. Download Procedure 1. Launch the MDS TFTP Server on a PC connected to the LEDR radio’s Port through a cross-connect cable. ETHERNET 2.

  • Page 105: Option 3: Uploading Firmware From A Remote Server Via Ethernet

    The computer hosting the firmware image, must be running a TFTP server software. If not, install, launch and configure the MDS TFTP Server software found on the LEDR Utilities disk. The setup configura-...

  • Page 106: Download Procedure

    The TFTP download process can also be initiated using an SNMP man- ager. The object provides a means for specifying Firmware|FwProgTable the TFTP server IP address and the filename for the firmware. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 107: Using Orderwire

    Service Channel during periods of voice transmission. A handset kit is available from MDS (P/N 02-1207A01), which pro- vides basic communication services but does not contain a built-in DTMF (tone) keypad. (The Orderwire supports the transmission of...

  • Page 108: Operation

    “ring” the earpiece of the handset of the asso- ciated LEDR unit.The LEDR chassis will not provide power to ring a standard bell or electronic ringer. Invisible place holder Figure 20. Orderwire Connection with MDS 12-1307A03 Handset LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 109: Related Nms Commands

    The most important setting is the parameter. Echo is used with a echo terminal emulator on a PC and the program does not display on the screen character keyed in by the user. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 110: Usage

    —Re-initialize the Service Channel reset —on/off echo —300, 600, 1200, 2400, 4800 and 9600 baud — 5, 6, 7, 8 (ASCII character length in bits) char —none, even, odd parity —1, 2 (Stop bits) stop LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 111: Protected Configuration

    Unit A is Unit B, and the sibling of Unit B is Unit A. This dis- tinction is used in the command found on Page 74 under the sub- rdnt heading “Read & Write Commands.” Invisible place holder Figure 21. Protected Switch Chassis (PSC) MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 112: Protected Operation

    This allows the link to remain fully oper- ational until the user has replaced the faulty transmitter circuitry. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 113: Receiver Failure

    530 (A&B) RF CONNECTORS Antenna External Ethernet EIA-530-A Service Channel Protected (A+B) 530 (A&B) PROTECTED DATA E1/T1 DATA EIA-530-A SERVICE CHANNEL ETHERNET Figure 22. Protected Switch Chassis—Rear Panel MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 114: Antenna

    The top connector is for Radio A, and the bottom connector is for Radio B. For pinout information, please consult the factory. Replace- ment cables are available from MDS (P/N 03-3837A02). This is a block of four RJ-45 modular connectors for connection to a multiplexer or other customer-supplied E1 equipment.

  • Page 115: Eia-530-A

    Chassis is dependent on the data interface, unit type (subrate versus full-rate), and transmit and receive antenna configuration. The cabling for a pair of standard radios with internal duplexers is shown in Figure MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 116 LEDR radio into proper operation as a member of a protected system. The tasks involved are reviewing and setting up of the following param- eters: LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 117 4. Configure the hitless switching. (Note that the default is on.): LEDR> rdnt hitless on rdnt {hitless}: on LEDR> 5. Configure the temperature (°C) threshold: LEDR> rdnt temp 100 rdnt {temp}: 100 LEDR> MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 118: Transmit Clock Selection (Subrate Models Only)

    REPEATER NULL-MODEM DATA INTERCONNECT CABLE LEDR Radio Clock Source: Ext. TX ETHERNET CROSS-CABLE SITE C LEDR Radio Clock Source: Looped External Mode Figure 24. Typical Repeater Clocking Arrangement (no multiplexer at repeater site) LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 119: Space Diversity Operation

    Fullrate radios require no user intervention for clocking. Users of subrate sys- tems should set the radio clocks as described for subrate systems. “Transmit Clock Selection” on Page 111 for further information. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 120: Inter-Unit Cabling For Space Diversity Stations

    (SUBRATE MODELS) RADIO B G.703/Expansion Data Service Ethernet EIA-530-A Alarm I/O DC Power Input Channel External Data Interface DO NOT USE IN PROTECTED CONFIG. Figure 26. Inter-unit Cabling—Space Diversity with External Duplexers LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 121: Spare Parts, Units And Accessories

    Spare assemblies and units used for repair of LEDR radios are listed in Table 29. Field servicing, or replacement of PC boards and assemblies, should only be performed by qualified service personnel. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 122: Accessories

    SNMPc™ Network SNMP Management Software to access 03-3530A01 Management Manager the LEDR embedded SNMP agent, allowing management of the LEDR radio network and any interconnected SNMP enabled peripherals. For Windows 95 O/S LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 123: Fractional-E1 Interface Card 03-3846A02

    DS0 timeslots are transmitted over the air in either case. The FT1 interface is G.703 at 100 Ω line impedance. The FE1 interface is G.703 at 120 Ω line impedance. Physical connection is via an RJ-45 jack on the rear panel. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 124: Timeslots And Framing

    FAS errors or CRC errors. Line Codes The following standard T1 line codes are supported: B8ZS, AMI, and per-channel B7ZS. The following standard E1 line codes are supported: HDB3 and AMI. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 125: Diagnostics

    (Note: Washers must not be used between the standoff spac- ers and either of the PC boards.) 4. Locate connectors J912 and J913 (See Figure 29). These connectors mate with the plugs on the bottom of the Interface board. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 126 8. Re-install the radio’s top cover. This completes the Interface Board installation. Invisible place holder Mates with J913 on Radio PC Board User Interface Mates with J912 on Ports Radio PC Board Figure 28. FT1/FE1 Interface Board—Optional Assembly (Part No. 03-3846Axx) LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 127 Invisible place holder PC Board Clamp Installation Area (Some Versions) for Interface Board REAR PANEL OF LEDR RADIO J913 J912 Figure 29. View of Radio PC Board Showing Installation Details for FT1/FE1 Interface Board MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 128: Introduction

    Precautions must be taken to prevent damage to components due to static discharge and other risks. 1. Remove the radio from service and disconnect all cabling from the rear panel. LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 129 6. This completes the required hardware changes. Fasten the top cover and re-connect all cables to the rear panel. 7. Power up the radio and proceed to “Software Commands” below. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 130: Software Commands

    • Required only for receiver sensitivity test. OR BER OR BER TESTER TESTER TOTAL ATTENUATION Fixed: 80 dB Minimum for Basic Checks Adjustable: For Sensitivity Tests (100–140 dB Required) Figure 31. Back-to-Back Link Test LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 131: Technical Reference

    This is likely when less than the channel's capacity is utilized by the timeslot command configuration. 17.0 TECHNICAL REFERENCE 17.1 Specifications— Models: LEDR 400S, 700S, 900S and 1400S General Frequency Ranges: 330–512 MHz (LEDR 400S) 746–794 MHz (LEDR 700S) 800–960 MHz (LEDR 900S) 1350–1535 MHz (LEDR 1400S)
  • Page 132 Data Loopback: Local and Remote Agency Approvals LEDR 400S EMC: ETS 300 385 LEDR 900S Transmission: FCC Part 101, RS-119 EMC: FCC Part 15 LEDR 1400S Transmission: ETS 300 630, MPT 1717 LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 133 Sensitivity 500 kHz 1 x E1 –90 dBm 1 MHz 2 x E1 –87 dBm 2 MHz 4 x E1 –84 dBm –10 Residual BER: < 10 Dynamic Range: > 65 dB MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 134 Less than 135 watts (Two radios and a Protected Switch Chassis) 17.4 Optional Equipment (Consult factory for detailed information) • Space Diversity • Hot-standby Protected • Warm-standby Protected • Bandwidth Upgrade Kits LEDR Series I/O Guide MDS 05-3627A01, Rev. D...

  • Page 135: Accessories

    Ear Return Output Mic Audio Input Ground — Figure 32. Orderwire RJ-11 Connector CONSOLE Port—Front Panel Invisible place holder TXD (DATA IN) RXD (DATA OUT) GROUND Figure 33. CONSOLE Port DB-9 Female Pinout MDS 05-3627A01, Rev. D LEDR Series I/O Guide...

  • Page 136: Ethernet—Rear Panel

    Input Differential digital input signal, tip Input Ground — (Early models: No Connection) As viewed from outside of radio No Connection — No Connection — Figure 36. G.703 Data Connector Pinout (RJ-45) LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 137 See “Alarm I/O” on Page 21 (See for parameters.) 17.7 Watts-dBm-Volts Conversion Table 32 is provided as a convenience for determining the equivalent voltage or wattage of an RF power expressed in dBm. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 138 These codes may be read from a terminal using the events command. (See Page 57 for a full description of the com- pending events mand.) LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 139 TEMPERATURE Temperature sensor ALARM CRITICAL reads over 80 degrees Celsius TX_POWER_LOOP Transmit Power Loop is TXALARM MAJOR out-of-lock DEMOD_SNR_LOW Demodulator NONE MINOR Signal-to-Noise ratio is unacceptably low MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 140 IO1_DIG_REM_LOOPBACK The radio’s 530 or TELCO NONE INFORM I/O port is in Digital Remote loopback mode IO2_DIG_REM_LOOPBACK The radio’s 2nd TELCO NONE INFORM I/O port is in Digital Remote loopback mode LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 141 ALARM CRITICAL Active to Inactive Configuration data sync. error NEW FIRMWARE LOADED New firmware has been NONE INFORM downloaded from flash memory. CONFIG_CHANGED The radio transceiver NONE INFORM configuration has been modified MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 142 Line IO #4 looped back to the commanding local radio IO1_RECVR_LOF Line IO #1 receiver I/O ALARM CRITICAL Loss-of-framing alarm. IO1_RECVR_LOS Line IO #1 receiver I/O ALARM CRITICAL Loss-of-signal alarm LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 143 I/O ALARM CRITICAL detected RAI (yellow) alarm IO2_RECVR_MRAI Line IO #2 receiver I/O ALARM CRITICAL detected multi-framed RAI (yellow) alarm IO2_RECVR_SEF Line IO #2 receiver I/O ALARM CRITICAL detected Severely Errored Frames MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 144 Line IO #3 receiver I/O ALARM CRITICAL detected multi-framed AIS alarm IO3_RECVR_FEBE Line IO #3 receiver I/O ALARM INFORM detected E1 Far-End-Block-Errors alarm IO3_RECVR_LCV Line IO #3 receiver I/O ALARM INFORM detected Line-Code- Violation alarm LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 145 SERV_REM_LOOPBACK For EIA-530, local radio NONE INFORM (as remote server) is serving remote loopback mode BAD_CLKMODE Line framers detected bad NONE INFORM clock mode configuration REDUNDANT SWITCH Switchover has occurred NONE INFORM MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 146 CRITICAL frequency split 19.0 IN CASE OF DIFFICULTY MDS products are designed for long life and trouble-free operation. However, this equipment, as with all electronic equipment, may have an occasional component failure. The following information will assist you in the event that servicing becomes necessary.
  • Page 147 When repairs have been completed, the equipment will be returned to you by the same shipping method used to send it to the factory. Please specify if you wish to make different shipping arrangements. MDS 05-3627A01, Rev. D LEDR Series I/O Guide...
  • Page 148 LEDR Series I/O Guide MDS 05-3627A01, Rev. D...
  • Page 149 (A hypothetical antenna which radi- from a gain antenna. It is equal to the power ates equally in all directions.) Used to express transmitted (minus feedline loss) plus the antenna gain. antenna gain. MDS 05-3627A01, Rev. D LEDR Series Installation & Operation Guide...
  • Page 150 E1 transmission that where there are redundant modules that auto- employs coding to eliminate data streams with matically become active in the event of a four or more consecutive zeros. failure. LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. D...
  • Page 151 As a general guideline, reflected power should not exceed 10% of the forward power (2:1 SWR). MDS 05-3627A01, Rev. D LEDR Series Installation & Operation Guide...
  • Page 152 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev. D...
  • Page 153 • Aim directional antenna for maximum receive signal strength using the RSSI Screen. 12. Configure the SNMP Manager software • Refer to the SNMP Handbook (Part No. 05-3532A01). (This manual is published by MDS in paper form, or may be downloaded from our web site at www.microwavedata.com.
  • Page 154 Microwave Data Systems Inc. 175 Science Parkway Rochester, NY 14620 General Business: +1 585 242-9600 FAX: +1 585 242-9620 Web: www.microwavedata.com A product of Microwave Data Systems Inc.

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