Page 1 COMSPHERE 3600 SERIES DATA SERVICE UNITS MODELS 3610 AND 3611 TIME DIVISION MULTIPLEXER, MULTICHANNEL MULTIPOINT, AND DIGITAL BRIDGE OPTIONS APPLICATIONS GUIDE Document No. 3610-A2-GB41-70 July 1999...
Page 2: Document Feedback
COMSPHERE 3600 Series Data Service Units COMSPHERE 3600 Series Data Service Units Models 3610 and 3611 Time Division Multiplexer, Multichannel Multipoint, and Digital Bridge Options Applications Guide 3610-A2-GB41-70 8th Edition (July 1999) Changes and enhancements to the product and to the information herein will be documented and issued as a new release to this manual.
Page 3: Important Safety Instructions
Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of electric shock from lightning. – Do not use the telephone to report a gas leak in the vicinity of the leak. 3610-A2-GB41-70 July 1999 Safety Instructions...
Page 4 LE PRESÉNT APPAREIL NUMÉRIQUE N'ÉMET PAS DE BRUITS RADIOÉLECTRIQUES DÉPASSANT LES LIMITES APPLICABLES AUX APPAREILS NUMÉRIQUES DE LA CLASSE A PRESCRITES DANS LE RÈGLEMENT SUR LE BROUILLAGE RADIOÉLECTRIQUE ÉDICTÉ PAR LE MINISTÈRE DES COMMUNICATIONS DU CANADA. WARNING WARNING July 1999 3610-A2-GB41-70...
Page 5: Table Of Contents
........Adding a TDM/Flex or MCMP/Flex to an Installed Model 3610 .
Page 6 ....... . . July 1999 ....3-13 4-21 4-35 4-52 4-53 5-12 5-14 5-31 5-43 3610-A2-GB41-70...
Page 7 Model 3610 DSU with TDM or MCMP Model 3611 DSU with TDM or MCMP Model 3610 TDM/Flex or MCMP/Flex Switch Locations Model 3610 TDM/DSD or MCMP/DSD Circuit Card Switch Locations Opening the DSU Assembling/Disassembling the TDM or MCMP Changing TDM/Flex or MCMP/Flex Interface Compatibility...
Page 8 ..........3610-A2-GB41-70...
Page 9 D-15 MCMP FEP Port-Sharing Configuration – Dial Backup Active 3610-A2-GB41-70 ..........
Page 10 60-Position High-Density Connector (TDM/MCMP Ports 2 through 6 for Model 3611 DSU) EIA-232-D/V.24 Connector (Port 1) V.35 Connector (Port 1) Model 3610 (Ports 2 – 6) and Modular DSU 25-Pin V.35 Connector EIA-232/V.24 TDM/MCMP Connector (Modular and Standalone – Ports 2 through 6) 6-Port V.35 Interconnect Cable Connector List of Tables .
Page 11: Preface
Time Division Multiplexer (TDM), Multichannel Multipoint (MCMP), and digital bridge options for the COMSPHEREr 3600 Series Data Service Units (DSUs), Models 3610 and 3611. Since a DBM-V, DBM-S, or DBM-D is only used in digital bridge configurations, information specific to these...
Page 12: Related Documents
Related Documents Basic DSU product documentation includes the following: 3610-A2-GB46 COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, User’s Guide 3610-A2-GB48 COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Time Division Multiplexer, Multichannel Multipoint, and Digital Bridge Options, User’s Guide...
Page 13: Overview
Model 3610 with TDM or MCMP Model 3611 with TDM or MCMP Models 3610 and 3611 with SNA Diagnostic Interface DBM Types ............... .
Page 14: Standard Features
Options that provide point-to-point dial backup capability and LPDA-2 interoperability without the TDM or MCMP option are discussed in the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Dial Backup Module and SNA Diagnostic Interface Options, Applications Guide.
Page 15 TDM session can be performed from the DCP or from a 6700 or 6800 Series NMS. Async Terminal control. A Model 3610 DSU with TDM can be controlled from a VT100-compatible async terminal. When this feature is enabled, the DSU is operated from the async terminal’s menu...
Page 16 MCMP circuit card. Up to six virtual multipoint circuits can exist over one standard DDS multipoint facility. There are two versions of the Model 3610 MCMP/Flex: the 2-port MCMP/Flex and the 6-port MCMP/Flex. With one of these features installed, each port can be set as either EIA-232 or V.35...
Page 17 Alarm. Alarm allows the DBM, DBM-V, DBM-S, or DBM-D to answer only incoming calls when there is a Facility Alarm on the DDS line. 3610-A2-GB41-70 Restoration. When the DSU rate equals the DBM rate, tributary DSUs can be configured to...
Page 18: Models
However, the two models are not interchangeable. Model 3610 with TDM or MCMP The housing of the Model 3610 DSU with TDM or MCMP has an expanded base which is designed to accommodate both the DSU circuit card and the TDM or...
Page 19: Model 3610 Dsu With Tdm Or Mcmp
INTERFACE INTERFACE (PORT 1) PORT 2 PORT 3 PORT 4 LOW VOLTAGE AC POWER IN ADDITIONAL EIA-232 INTERFACES PORT 5 PORT NUMBERS 2 – 6 PORT 6 496-13091-04 Figure 1-1. Model 3610 DSU with TDM or MCMP 3610-A2-GB41-70 July 1999...
Page 20: Model 3611 Dsu With Tdm Or Mcmp
COMSPHERE 3600 Series Data Service Units Figure 1-2. Model 3611 DSU with TDM or MCMP July 1999 3610-A2-GB41-70...
Page 21: Dbm Types
For the Government Requirements and specific instructions pertaining to connection to the telephone network, refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, User’s Guide. Equipment Warranty and Support For the Equipment Warranty and Support instructions, refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, User’s Guide.
Page 22 COMSPHERE 3600 Series Data Service Units 1-10 July 1999 3610-A2-GB41-70...
Page 23: Model 3610 Installation
..............Adding a TDM/Flex or MCMP/Flex to an Installed Model 3610 DSU Getting Started .
Page 24: Hardware Straps
(if the DBM is installed). DSU DTE connection. Operation verification. Although the Model 3610 DSU is designed for desk- or table-top operation, an ACCULINKr 3100 Series CSU wall-mount adapter may be ordered to mount the DSU with TDM or MCMP on a wall, an equipment shelf, a 19-inch RS-310-C or 23-inch AT&T DATAPHONEr...
Page 25: Model 3610 Tdm/Flex Or Mcmp/Flex Switch Locations
Model 3610 Installation Figure 2-1. Model 3610 TDM/Flex or MCMP/Flex Switch Locations Figure 2-2. Model 3610 TDM/DSD or MCMP/DSD Circuit Card Switch Locations 3610-A2-GB41-70 July 1999...
Page 26: Changing Hardware Settings
THIS DEVICE COM;OIES WITH PART 15 OF THE FCC RULES OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION. FCC ID: NOT APPLICABLE SNAP TAB 496-14518a-01 3610-A2-GB41-70...
Page 27: Assembling/Disassembling The Tdm Or Mcmp
6. Unscrew the three screws that hold the DSU circuit card in place. 7. Remove the DSU from the base. Carefully lift the DSU up until its connectors are free of the rear panel. Set the DSU on a clean ESD (anti-static) workpad. July 1999 Model 3610 Installation...
Page 28: Changing Tdm/Flex Or Mcmp/Flex Interface Compatibility
6. Replace the cover over the expanded base, carefully aligning the rear panel and four snap tabs over their corresponding slots. 7. Press the cover and base together until all four tabs snap into place. July 1999 Figure 2-4). 3610-A2-GB41-70...
Page 29: Changing Tdm/Dsd Or Mcmp/Dsd Interface Compatibility
6. Press the cover and base together until all four tabs snap into place. OPTION CARD LED 1 (GREEN EIA-232) LED 2 (YELLOW V.35) July 1999 Model 3610 Installation Figure 2-4). 496-13845-02...
Page 30: Electrical Connection
For information on the TDM, MCMP, or digital bridge option sets, refer to the section of this guide and the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, User’s Guide or the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide.
Page 31: Model 3610 Dsu With Tdm Or Mcmp
WITHOUT TDM or MCMP OPTION FRONT BEZEL FRONT BEZEL WALL-MOUNT AC TRANSFORMER Figure 2-7. Model 3610 DSU with TDM or MCMP 3610-A2-GB41-70 SNAP TABS WITH TDM or MCMP OPTION LOW VOLTAGE INTERFACE AC POWER IN NETWORK INTERFACE DIAGNOSTIC INTERFACE PORT 5...
Page 32: Network Diagnostic Connection
Software Configuration A default software configuration is loaded in the DSU at the factory. If the TDM is installed, the Model 3610 DSU is configured as a tributary with TDM mode enabled and Port 1 set to operate at 9.6 kbps. If the MCMP is...
Page 33: Network And Lads Connections
To change configuration options of the Model 3610 DSU from the DCP or the Model 3610 from an async terminal, select the Local branch, then the Configuration (Confg) branch. (If not displayed, press the Confg is displayed, then press the function key below the selection.) Select Opts (for Configuration Options), then...
Page 34: Verification Testing
MCMP capability is now functional, with all tributary DSUs on the control DSU’s MCMP poll list. At this point, DSU ports can be assigned to MCMP channels through the Port Speed (PrtSp) selection from the Configuration Options (Opts) submenu. July 1999 3610-A2-GB41-70...
Page 35: Dsu
The time division multiplexer (TDM/Flex) or multichannel multipoint (MCMP/Flex) upgrade for the Model 3610 (standalone) DSU includes a circuit card that rests in an expanded base with an expanded rear panel. If this upgrade is to be installed on a DSU with firmware version 6.3x or greater, each port (Port 1 or...
Page 36: Getting Started
(refer to 7. Turn the unit over while being careful not to allow any cable to be pulled free of the connectors. Figure 2-8. Disconnecting the DSU July 1999 NOTE Figure 2-3). 3610-A2-GB41-70...
Page 37: Removing The Dsu From Its Base
6. Being careful not to bend the pins, align the LCD flat cable to its connector. Then gently push the cable pins back into place. 2-3). Discard the July 1999 Model 3610 Installation section of this chapter. while following this procedure. 2-15...
Page 38: Reassembling The Unit
6. If the keypad and/or LCD functions fail, check the Keypad and LCD flat cables for proper installation. Perform the Device Test again. If the Device Test fails again, call your service representative for assistance. July 1999 in this chapter. Verification Testing 3610-A2-GB41-70...
Page 39: Model 3611 Installation
DSU-MCMP, unless otherwise specified. 3610-A2-GB41-70 Model 3611 Installation ..........
Page 40 TDM’s or MCMP’s 60-pin high-density connector. To order cables, refer to Equipment Lists, Appendix L, of the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide. Modular DSU with a TDM or MCMP The modular DSU-TDM or DSU-MCMP has “gold finger”...
Page 41: Non-Modular Tdm/Mcmp Circuit Card Switch Locations
DSU is inserted into the carrier. Refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide, which can be ordered, to change the straps. When the Test Mode Indication jumper is enabled, the V.35 lead NN and Pin 25 on the EIA-232-D/V.24 interface...
Page 42: Software Configuration
For additional configuration option information, refer to Unit Configuration, Chapter 4, of the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Time Division Multiplexer, Multichannel Multipoint, and Digital Bridge Options, User’s Guide Supplement, or...
Page 43: Verification Testing
For the 6700 Series NMS, configuration options are menu-driven. Select Config Network Devices appropriate submenu selection. Tributary 3610 DSUs with TDM or MCMP can be configured from an NMS provided the Position configuration option (Diagnostic General) is set to Trib from the SDCP and the DSU is connected to a control DSU that is connected to the NMS.
Page 44: Adding A Tdm Or Mcmp To An Installed Model 3611 Dsu
1. Record all Backup Directory entries. 2. Record the unit’s local telephone number (Phone). For instructions and handling precautions for opening the DSU, refer to the Hardware Straps and Changing the Hardware Settings sections of this chapter. July 1999 3-2. These switches 3610-A2-GB41-70...
Page 45 Use care in handling the circuit card and screws to avoid cutting traces. 3610-A2-GB41-70 6. Attach the two remaining standoff posts to the DSU with the two Phillips-head screws and flat washers. Tighten the screws until the standoff posts fit snugly against the circuit card;...
Page 46 If the test fails again, contact your service representative to return the DSU-TDM or DSU-MCMP unit; refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, User’s Guide . To reconnect cables: " Procedure 1. Reconnect the DTE interface cable to the DSU.
Page 47: Non-Modular Tdm Or Mcmp Installation
Model 3611 Installation Figure 3-3. Non-Modular TDM or MCMP Installation 3610-A2-GB41-70 July 1999...
Page 48: Comsphere 3000 Series Carrier (Rear)
V.35 interface for either Port 1 or an aggregate data path. This connector requires a 6-port V.35 Interconnect Cable which converts the 26-pin high-density D-type interface to the standard V.35 34-pin interface. The 6-port V.35 Interconnect Cable (part number 035-0174-0031) must be ordered separately. July 1999 3610-A2-GB41-70...
Page 49: Modular Tdm Or Mcmp Installation
DSU, and rotate the lock to the open position (Figure 3-5). Figure 3-5. Modular TDM or MCMP Installation 3610-A2-GB41-70 2. Pull out and down on the latch at the bottom of the modular DSU’s faceplate until the circuit card starts to come out of its slot in the carrier. Pull the circuit card free of the carrier and set the DSU on a clean, ESD (anti-static) workpad.
Page 50 At this point, MCMP capability is functional, with all tributary DSUs on the MCMP poll list, and DSU ports can be assigned to MCMP channels. July 1999 3-5). (Figure 3-4). Power-Up Routine Configuration Branch Verification Testing 3610-A2-GB41-70...
Page 51: Removing Tdm Or Mcmp From An Installed Model 3611 Dsu
TDM or MCMP circuit as described in Equipment Warranty and Support Chapter 1. If you wish to install another TDM or MCMP circuit card, refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide. July 1999 Model 3611 Installation (Figure 3-5).
Page 52 COMSPHERE 3600 Series Data Service Units 3-14 July 1999 3610-A2-GB41-70...
Page 53: Principles Of Operation
Setup – DSU Rate Equals DBM Rate Automatic DDS Restoration 3610-A2-GB41-70 Principles of Operation ............
Page 54: Overview
3600 Series DSUs or one of the other devices listed in the DSU Compatibility section of Chapter 1 of the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide. A circuit employing point-to-point transmission is referred to as a point-to-point circuit.
Page 55: Multipoint Transmission
(DTE) at the control DSU. 3610-A2-GB41-70 A 3600 Series DSU can be configured as a control or as a tributary in multipoint transmission. A control 3610 or 3611 DSU provides diagnostic support for up to 40 addressable tributary devices using MCMP, multipoint nondisruptive, or mixed diagnostics.
Page 56: Modes Of Operation
DSU to support multipoint LADS operation, dedicated multipoint dial backup, or expanded digital-sharing. If a DBM is installed, it must be disabled or removed to operate in Bridge mode. July 1999 3610-A2-GB41-70...
Page 57: Time Division Multiplexing
A pair of 3600 Series DSUs with TDM or MCMP operating in TDM mode can provide the equivalent of up Figure 4-2. Functional Representation of Point-to-Point Multiplexing 3610-A2-GB41-70 to six point-to-point circuits via a single DDS line (Figure 4-2). This single DDS line is able to carry six separate channels by interleaving the data on each channel into time slots of the high-speed aggregate data stream.
Page 58: Speed Characteristics
DSUs configured as a single port-sharing group. Refer to the COMSPHERE 3600 Series Data Service Units, Model 3610 and 3611, Operator’s Guide for the additional single-port async/sync information. In-Band Framing and Underspeed Channel For proper operation, the receiving TDM must be in synchronization with the transmitting TDM.
Page 59: Tdm Architecture And Signal Flow
(Ports 2 through 6). The pin assignments for this cable are provided in Appendix Model 3611 or Model 3610 DSUs operating in TDM mode, all port connectors are individual and a separate crossover cable is required for each connector.
Page 60: Single-Port Point-To-Point Circuit With Nondisruptive Diagnostics
(Share DevA: Enab). Figure 4-4. Single-Port Point-to-Point Circuit with Nondisruptive Diagnostics Refer to Table 1-2 of the COMSPHERE 3600 Series Data Service Units, Model 3610 and 3611, Operator’s Guide for the maximum diagnostic rate that can be run for various asynchronous-to-synchronous configurations.
Page 61: Multipoint Async-Compatible Network
Figure 4-5 shows a compatible configuration. Access the Status (Stat) branch and select ID (Identity) to determine the DSU’s firmware version (DSU SW ver). Figure 4-5. Multipoint Async-Compatible Network 3610-A2-GB41-70 NOTE For asynchronous ports to operate at 1200 bps, individual asynchronous port speeds...
Page 62: Point-To-Point Multiplexing
The TDM point-to-point application provides the same functionality as six point-to-point circuits. The DDS circuit can be provided by a service provider or a metallic 4-wire LADS facility. Figure 4-6. Point-to-Point Multiplexing July 1999 3610-A2-GB41-70...
Page 63: Tdm With Extended Circuit
Paradyne devices at the remote location. 3610-A2-GB41-70 Digital Sharing Digital sharing is a TDM or MCMP feature that allows up to six ports to share the same channel. Typically this is used for terminal-to-host connections that allow one host port to service several terminal ports.
Page 64: Digital Sharing
COMSPHERE 3600 Series Data Service Units Figure 4-8. Digital Sharing 4-12 July 1999 3610-A2-GB41-70...
Page 65: Multiplexing And Digital Sharing
DSUs. Figure 4-9. Multiplexing and Digital Sharing 3610-A2-GB41-70 Some of the ports can be configured for multiplexing (one port per channel) and others can be configured as a digital-sharing group. For example, two digital-sharing groups can be multiplexed with the remaining port forming three channels, as shown in Figure 4-9.
Page 66: Fep Port Sharing
). Data received from Channel C or Port 4 is sent to the FEP on Port 3. FEP port sharing is also used to back up an MCMP circuit with a set of point-to-point TDM circuits. The MCMP Backup July 1999 section describes this in detail. 3610-A2-GB41-70...
Page 67: Fep Port Sharing
Principles of Operation Figure 4-10. FEP Port Sharing 3610-A2-GB41-70 July 1999 4-15...
Page 68: Case 1 – V.32 Backup For Subrate Dds
Once the link is re-established, the TDM circuitry resynchronizes and data transmission resumes at the same rate as the DDS circuit. In the example below, the DSU-TDM is running disruptive diagnostics with four ports operating at 2400 bps. July 1999 3610-A2-GB41-70...
Page 69: Case 2 – V.32 Backup For High-Speed Dsu
Figure 4-12. Case 2 – V.32 Backup for High-Speed DSU 3610-A2-GB41-70 One possible configuration is to allow one port to remain at 9600 bps, reconfigure one port to 4800 bps running at underspeed, and reconfigure all other ports to Off.
Page 70: Case 3 – V.32 Backup For Dsu With Extended Circuits
(such as the COMSPHERE 3400 Series modems) that are capable of falling back in speed in response to an Off signal on their speed-select input lead. This requires a special crossover cable ( feature number 3400-F1-501 ). July 1999 3610-A2-GB41-70...
Page 71: Case 4 – Switched 56 Dbm Backup For Dsu Operating At 56 Kbps Or Less
DBM provides full backup of point-to-point single Figure 4-14. Case 4 – Switched 56 DBM Backup for DSU Operating at 56 kbps or Less 3610-A2-GB41-70 port and TDM circuits operating at 56 kbps. If the DDS circuit is operating at less than 56 kbps, rate adaption is used to match the DDS speed.
Page 72: Case 5 – Aggregate Switched Backup For Tdm Circuits Configuration
During full backup switching (for aggregate versions only), diagnostic commands are routed over the aggregate port to the remote DSU or DBM. Only two tests are available to test the DDS facility: Digital Test (DT) and Bit Error Rate Test (BERT). July 1999 3610-A2-GB41-70...
Page 73: Multichannel Multipoint
3600 Series DSUs with MCMP operating in MCMP mode can support up to six independent applications over a single 56 kbps standard multipoint digital facility. 3610-A2-GB41-70 The MCMP capability provides up to six user- selectable full-duplex channels, plus a channel for diagnostic transport.
Page 74: Applications Combined On One Dds Multipoint Circuit With Mcmp
(e.g., assigning Channel A to any of the unused ports at Branch Site 1 allows an additional teller workstation to be added at that location), as shown in Figure 4-17. July 1999 3610-A2-GB41-70...
Page 75: Line And Channel Speeds
Since the management channel is embedded in the MCMP overhead, it transmits information without disrupting user-transmitted data. 3610-A2-GB41-70 When the MCMP capability is activated for the first time, the control DSU with MCMP determines the roundtrip delay parameters that are critical to MCMP operation.
Page 76: Mcmp Architecture And Signal Flow
( See pin assignments. ) For modular Model 3611 DSUs or Model 3610 DSUs operating in MCMP mode, all port connectors are individual and a separate crossover cable is required for each connector.
Page 77: Mcmp Operation
Async/Sync Async Rate Async Bits/Character Stop Bits 3610-A2-GB41-70 During MCMP operation, the Channel Speed and Asynchronous configuration values at the control DSU are downloaded to the tributaries on the control DSU’s poll list every 10 seconds. The downloading is accomplished via the management channel so there is no disruption to user-transmitted data.
Page 78: Mcmp
TDM capability). The host protocol must enforce the order of transmissions to avoid collisions; that is, the digital-sharing group is not configured for contention. Refer to the following note if contention is required. July 1999 3610-A2-GB41-70...
Page 79: Mcmp With Fep Port Sharing
Device B (Share DevB) configuration options. Refer to the MUX Configuration Options section of Chapter 5. 3610-A2-GB41-70 Figure 4-20 shows an MCMP application using three channels, where a digital-sharing group has been formed at each of the tributary locations. Notice that the digital-sharing groups can be different at each tributary DSU.
Page 80: Mcmp Backup
The extended bridge should be configured for Bridge Timing set to Auto. The control and tributary DSUs should have Disruptive Type set to Br56. The tributary DSUs should be configured for MCMP Backup set to MCMP. July 1999 3610-A2-GB41-70...
Page 81: Case 2 – Backing Up The Channels To The Most Important Tributary Location
TDM and MCMP configuration options must Figure 4-22. Case 2 – Backing Up the Channels to the Most Important Tributary Location 3610-A2-GB41-70 be set. Therefore, Port 1 at the control DSU should be mapped to Port 1 at the tributary DSU. For...
Page 82: Case 3 – Backing Up One Complete Channel (Partial Backup)
At the central site, an extended bridge and a DBM-V for each tributary must be available. (Refer to the Multipoint Dial Backup chapter.) Essentially, the backup becomes dial backup of a single multipoint circuit. July 1999 section of this 3610-A2-GB41-70...
Page 83: Case 3 – Backing Up One Complete Channel (Full Backup)
MCMP circuit is restored. Figure 4-24. Case 3 – Backing Up One Complete Channel (Full Backup) 3610-A2-GB41-70 The DBM-V should be configured for V.13 Signaling ( V.13 Signl ) enabled and for disruptive diagnostics (Diag Type).
Page 84: Case 4 – Backing Up (Up To) Three Channels Via The Fep Port-Sharing Feature
DSU. To daisy chain these units, alternate TDM and digital bridge interface cables for non-modular devices, and use crossover cables with modular devices. Essentially, the backup becomes the dial backup of a set of point-to-point TDM circuits. July 1999 3610-A2-GB41-70...
Page 85: Digital Bridge/Dce Interface
Cntrl at the tributary, and RxCarrSel to Cntrl at the control. Figure 4-26. Digital Bridge/DCE Interface 3610-A2-GB41-70 Since the dial backup operation is performed in TDM mode, the MCMP channel-to-port assignment capability is not available. Port 1 at the control DBM should map to Port 1 at the tributary DBM.
Page 86: Aggregate Switched Backup For Mcmp Circuit Configuration
During full backup switching (for aggregate versions only), commands are routed over the aggregate port to the remote DSU or DBM. Only two tests are available to test the DDS facility, Digital Test (DT) and Bit Error Rate Test (BERT). July 1999 3610-A2-GB41-70...
Page 87: Digital Bridge
(CBrdg), or an extended bridge (EBrdg) when more bridging capability is needed. Figure 4-28. Multipoint with Digital Bridging 3610-A2-GB41-70 The digital bridge capability allows for multipoint transmission from a local digital bridge ( Figure 4-28 ), as opposed to network bridging. The DTE connected to the DSU having the digital bridge capability is the controlling DTE.
Page 88: Maximum Bridging Capability – Up To 20 Bridging Ports
Figure 4-29. Maximum Bridging Capability – Up to 20 Bridging Ports 4-36 extended bridges can be added to a central-site bridge to provide a total of 20 bridging ports, depending upon the application ( Figure 4-29 ). July 1999 3610-A2-GB41-70...
Page 89: Broadcasting Data Through The Digital Bridge
The pin assignments for this cable are provided in Appendix For modular Model 3611 DSUs or Model 3610 DSUs with the digital bridge capability, all port connectors are individual, requiring a separate crossover cable for each bridge port.
Page 90: Diagnostic Considerations
Multipoint backup can provide dedicated dial backup on multipoint DDS circuits. Figure 4-28 multipoint tributary DSUs as 3610 DSUs/DBMs, but tributaries can also be 3611 DSUs/DBMs. One dial backup call is required per failed drop. Partial backup on multipoint DDS circuits is possible...
Page 91: Multipoint Dds Circuit In Partial Backup
Principles of Operation Figure 4-31. Multipoint DDS Circuit in Partial Backup 3610-A2-GB41-70 July 1999 4-39...
Page 92: Tributary Addressing Via Dds Connections
( NonD), mixed ( Mixed), and disruptive ( Disr) diagnostic types ( Diag Type). The Disruptive Diagnostic Type ( Disr Type) should be set to 3600e, or Br56 for switched 56 kbps dial backup. July 1999 3610-A2-GB41-70...
Page 93: Tributary Addressing Via Backup Connections
Principles of Operation Figure 4-33. Tributary Addressing via Backup Connections 3610-A2-GB41-70 July 1999 4-41...
Page 94: Multipoint Backup Architecture
Normal Operation with Partial Backup Possible 4-42 included in the digital-sharing group. Under these conditions, the digital bridge is active during normal operation and valid backup calls are automatically put onto the digital bridge ( Figure 4-34 ). July 1999 3610-A2-GB41-70...
Page 95: Central-Site Bridging Architecture (9.6 Kbps) – Partial Backup In Effect
DBM-V, DBM-S, or DBM-D and backup connections. Figure 4-35. Central-Site Bridging Architecture (9.6 kbps) – Partial Backup in Effect 3610-A2-GB41-70 In multipoint dial backup, the DBM-Vs are configured for external timing and the tributary DBMs are configured for received timing.
Page 96: Central-Site Bridging Architecture (56 Kbps) – Inactive Digital Bridge
This action switches the connection from the DDS line to the bridge and causes the digital bridge to switch to the timing that is stored in the Brdg Timing configuration option. July 1999 4-37 illustrate this. 3610-A2-GB41-70...
Page 97: Central-Site Bridging Architecture (56 Kbps) – Active Digital Bridge
DBM. (Refer to Chapter 5 of the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Dial Backup Module and SNA Diagnostic Interface Options, Applications Guide for in-depth instructions on how to set DBM configuration options and issue dial backup commands from the SDCP.)
Page 98: Dbm-V/Dbm-S/Dbm-D Dial On Dtr Capability
DTR is raised and drops the call when DTR goes low. For additional information, refer to Configuration Options, Chapter 6, in the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide. Digital Bridge/DBM-V/DBM-S/DBM-D Interface Since both the digital bridge port and the DBM provide...
Page 99: Automatic Dds Restoration
* These procedures also apply when the bridge rate is configured for a value other than =DDS. 3610-A2-GB41-70 If there is a failure in the backbone DDS network, the control DSU reports a Facility Alarm (FA) or Tributary Time-out Alarm (Time) to the NMS.
Page 100: Lads Operation
9.4 mi (15.1 km) 9.6 mi 7.1 mi (11.5 km) 7.3 mi 5.6 mi (9.0 km) 5.7 mi 4.2 mi (6.8 km) 4.6 mi 3.2 mi (5.1 km) 3.8 mi 2.8 mi (4.5 km) 3.8 mi 2.8 mi (4.5 km) 3610-A2-GB41-70...
Page 101: Point-To-Point Lads
25-pin EIA-232 connectors. For modular Model 3611 DSUs and Model 3610 DSUs with the digital bridge capability, all port connectors are individual and a separate crossover cable is required for each connector. The...
Page 102: Bridged Lads Operation
COMSPHERE 3600 Series Data Service Units Figure 4-38. Bridged LADS Operation 4-50 July 1999 3610-A2-GB41-70...
Page 103: Bridged Lads Architecture And Signal Flow
To establish the data paths shown in Figure 4-39, the Bridge Rate configuration option must be set to =DSU. (Configuration options are set via the DCP, as discussed in Figure 4-39. Bridged LADS Architecture and Signal Flow 3610-A2-GB41-70 Chapter 5; the Bridge Rate configuration option is discussed in the MUX Configuration Options Chapter 5.)
Page 104: Nms Control
3600 Series multipoint networks. These routines can be requested from the NMS console or can be linked to an event-driven routine and triggered by a Facility Alarm ( FA ) generated by a control DSU. July 1999 3610-A2-GB41-70...
Page 105: Sna Diagnostic Interface
Data Service Units, Models 3610 and 3611, Operator’s 3610-A2-GB41-70 Guide for configuration option information. Refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Dial Backup Module and SNA Diagnostic Interface Options, Applications Guide for additional SNA Diagnostic Interface information. LPDA-2 Addressing...
Page 106: Assigning An Address To The Tributary Dsu
DTE with the next consecutive PU address is connected to Port 2 and so on. From the NetView operator’s perspective, the digital-sharing feature appears as a unique DSU connected to each DTE. July 1999 NOTE 4-47 in the Digital Sharing 3610-A2-GB41-70...
Page 107: Dial Backup With Lpda-2 Configuration
Chapter 5 ), the DSU is allowed to respond to the LPDA Call Out and Figure 4-42. Dial Backup with LPDA-2 Configuration 3610-A2-GB41-70 Disconnect LPDA-2 commands. The Call Out command instructs the DSU to set up dial backup from the control site and switch to the PSTN line.
Page 108: Multipoint Dial Backup With Lpda-2
LPDA-2 monitoring, although full support is provided from NMS. An example of an MCMP circuit with LPDA-2 monitoring is shown in Figure the same as TDM for LPDA-2 monitoring. July 1999 4-45. MCMP is essentially 3610-A2-GB41-70...
Page 109: Multiplexing With Tdm (Lpda-2 Monitoring)
Principles of Operation Figure 4-44. Multiplexing with TDM (LPDA-2 Monitoring) Figure 4-45. Multiplexing with MCMP (LPDA-2 Monitoring) 3610-A2-GB41-70 July 1999 4-57...
Page 110: Digital Sharing
However, for the SNA Diagnostic Interface option to recognize the digital-sharing group, the group must be specified by the Sharing Device A (Share DevA) configuration option. July 1999 4-47 and 4-49, 3610-A2-GB41-70...
Page 111: Digital Sharing In A Multipoint Circuit
Principles of Operation Figure 4-47. Digital Sharing in a Multipoint Circuit 3610-A2-GB41-70 July 1999 4-59...
Page 112: Digital Sharing In A Tdm Circuit (Lpda-2 Monitoring)
COMSPHERE 3600 Series Data Service Units Figure 4-48. Digital Sharing in a TDM Circuit (LPDA-2 Monitoring) 4-60 July 1999 3610-A2-GB41-70...
Page 113: Digital Sharing In An Mcmp Circuit (Lpda-2 Monitoring)
Principles of Operation Figure 4-49. Digital Sharing in an MCMP Circuit (LPDA-2 Monitoring) 3610-A2-GB41-70 July 1999 4-61...
Page 114 COMSPHERE 3600 Series Data Service Units 4-62 July 1999 3610-A2-GB41-70...
Page 115: Dsu Operations
..............3610-A2-GB41-70 DSU Operations .
Page 116: Overview
DBM-Vs, DBM-Ss, and DBM-Ds, which are used in digital bridge applications. As with the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide, this chapter follows the structure of the Menu Tree (Appendix A), discussing changes as they would appear as you operate the DSU from its diagnostic control panel (DCP or SDCP).
Page 117: Status Indicators
Model 3611 DSU’s faceplate continuously provide information on the current operating condition of the DSU. All of the status indicators on the Model 3610 appear on its DCP, whereas the status indicators of the carrier-mounted Model 3611 DSU are spread across the...
Page 118: Model 3611 Dsu And Mcmp Faceplates
Figure 5-2. Model 3611 DSU and MCMP Faceplates Status Alrm Front Panel DBM-V 3600 Figure 5-3. DBM-V, DBM-S, and DBM-D July 1999 Status Status Alrm Alrm Alrm Test Test Test Dial Dial Dial Front Panel Front Panel DBM-S DBM-D 3600 3600 496-12349d-01 Faceplates 3610-A2-GB41-70...
Page 119: Tdm And Mcmp Status Indicators (Model 3611 Only)
Port 1, 2, 3, 4, 5, Green or 6 Only the MCMP circuit card can be configured for MCMP mode of operation. 3610-A2-GB41-70 Table 5-1 Description Health and status indicator. The TDM or MCMP hardware and software are operating normally.
Page 120: Dsu With Tdm Or Mcmp And Dbm-V/Dbm-S/Dbm-D Status Indicators
Control branch. For a 3611 DSU with TDM or MCMP, the port LED illuminated on the TDM or MCMP faceplate indicates the monitored port. For Model 3610 DSUs, the monitored port is displayed on the DCP’s LED display. Device is currently selected by the SDCP (the SDCP addresses one device at a time) .
Page 121: Menu Structure
*The SNA Diagnostic Interface option (LPDA on the menu tree) for multipoint applications is discussed in this guide. Refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Dial Backup Module and SNA Diagnostic Interface Options, Applications Guide for point-to-point applications and the configuration options unique to those SNA Diagnostic Interface (LPDA-2) applications.
Page 122: Status Branch
For information on how to access menu branches and DCP operation (regardless of the options installed), refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide. Status Branch The Status (Stat) branch reports on the health and...
Page 123: Health And Status
The second line of the Expanded Health and Status report displays one or more of the test or alarm messages. Messages are listed in Appendix C of the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide. July 1999...
Page 124: Dte Lead Status Codes
For a list of status messages and their meanings, see Appendix C of the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide. DTE Status The DTE Status displays a snapshot of the local or remote DSU-DBM’s external DTE interface status.
Page 125: Circuit Quality
Roundtrip delay (ms) to 06 = 1 error in a million bits (10 A roundtrip delay of less than 23 ms is reported as 23 ms. 3610-A2-GB41-70 Terminal Power Terminal Power (TPwr) shows the status of the connected DTE’s EIA-232-D or V.35 interface. The DSU...
Page 126: Backup Branch
Bridge section). For additional DBM operation information, refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Dial Backup Module and SNA Diagnostic Interface Options, Applications Guide. DBM/DBM-V/DBM-S/DBM-D This section discusses the full set of commands available in the Backup branch when a DBM is installed.
Page 127: Aggregate Switch
DDS circuit, refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Dial Backup Module and SNA Diagnostic Interface Options, Applications Guide. Bridge When the DSU is configured as an extended bridge (EBrdg), the Bckup menu is displayed;...
Page 128: Test Branch
DBM (or DBM-V, DBM-S, or DBM-D), see Table 5-3 of the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Dial Backup Module and SNA Diagnostic Interface Options, Applications Guide. To determine the...
Page 129: Abort
The results of the Device Tests appear momentarily on the DCP’s LCD. 3610-A2-GB41-70 The DBM must be in Idle mode or Disconnect mode, with no call in progress. The Device Test is a 15- to 20-second test that does not require any connection except ac power to the DSU.
Page 130: Device Test
5-16 reported until the Device Test ends with a Pass in all categories (DSU, MUX, DBM). Until then, you can proceed but be aware that the DSU may not function properly. Figure 5-4. Device Test July 1999 3610-A2-GB41-70...
Page 131: Loopback
Remote Digital Loopback (RL) For additional information concerning loopbacks, refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide. Local Loopback Local Loopback (LL) is session-disruptive; performing the test will disrupt data. Local Loopback permits the DTE to run a test on the DTE connection to the DSU and verify that the DSU is functioning properly (Figure 5-5).
Page 132 Data transmitted to the DSU is returned to the DTE. DSU Local Lpbk: Command Complete NOTE During Local Loopback, the DSU uses internal timing. This may be a problem for extended circuit applications. In this case, execute a DTE Loopback instead of a Local Loopback. July 1999 3610-A2-GB41-70...
Page 133: Dte Loopback On Port 2
Local (F1) Test DSU or DBM (select active core) Lpbk Port selection 3610-A2-GB41-70 Results The test result is a message telling you whether or not the loopback executed successfully. The DSU with TDM or MCMP only permits one test to be active at a time.
Page 134: Digital Loopback
A Digital Loopback may not be initiated from a remote multipoint device. If the Bilat Lpbk (Bilateral Loopback) configuration option is enabled, requesting a Digital Loopback automatically initiates a DTE Loopback as well. Figure 5-7. Digital Loopback July 1999 NOTE 3610-A2-GB41-70...
Page 135 DSU is placed in Test mode. The local DSU is not in Test mode, and another test, such as BERT, can be initiated at the local DSU. 3610-A2-GB41-70 For TDM or MCMP mode, the following additional menu appears: Port Number: Prt1...
Page 136: Remote Digital Loopback
For a DBM, Remote Digital Loopback is session- disruptive when the DBM is in Dial Backup mode and nondisruptive when in Standby mode. A DTE connection to the remote DBM is not required. Figure 5-8. Remote Digital Loopback July 1999 NOTE 3610-A2-GB41-70...
Page 137 Local (F1) Test DBM (select active core) Lpbk Port Select (when not operating in single-port mode) Trib Address (multipoint control DBM only) 3610-A2-GB41-70 For TDM or MCMP mode, the following additional menu appears: Port Number: Prt1 Prt2 Prt4 Prt5...
Page 138: Bilateral Loopback
DSU. Bilateral Loopback or Digital Loopback is a customer-selectable configuration choice (see the General Configuration Option Table in Chapter 6 of the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide). 5-24 If the Bilat Lpbk (Bilateral Loopback) configuration option...
Page 139: Digital Test
DTE Loopback on the port as well. Requesting an aggregate Remote Digital Loopback automatically initiates a DTE Loopback on all of the ports. 3610-A2-GB41-70 NOTE A control DSU can originate a Digital Test in a point-to-point or multipoint network, whereas a...
Page 140: Digital Test
COMSPHERE 3600 Series Data Service Units Figure 5-10. Digital Test 5-26 July 1999 3610-A2-GB41-70...
Page 141: End-To-End Test
3610-A2-GB41-70 For an example of Digital Test results, refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Dial Backup Module and SNA Diagnostic Interface Options, Applications Guide. End-to-End Test The End-to-End (EE) test is used to analyze a control...
Page 142: End-To-End Test Results
NMS as receive block errors. For an example, refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Dial Backup Module and SNA Diagnostic Interface Options, Applications Guide. Table 5-7...
Page 143: Bit Error Rate Test Results
Basic mode. If nondisruptive diagnostics are in effect, the in-band secondary channel transport communications are disrupted. The Bit Error Rate Test is not available in Bridge mode. 3610-A2-GB41-70 DBM BERT: Start Displ If the BERT is already in progress, Start will not be displayed.
Page 144: Bit Error Rate Tests In Tdm Or Mcmp Mode
COMSPHERE 3600 Series Data Service Units Figure 5-12. Bit Error Rate Tests in TDM or MCMP Mode 5-30 July 1999 3610-A2-GB41-70...
Page 145: Configuration Branch
The Lamp test is a test of the status indicators (LEDs) on the DSU’s DCP (both models), and the LCDs on the Model 3610 DCP and the SDCP. When the Lamp test is performed on the Model 3611, the alarm output is activated as well.
Page 146: Options
To configure the DSU-DBM for each of these setup methods using the DBM and Backup configuration option sets, refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Dial Backup Module and SNA Diagnostic Interface Options, Applications Guide.
Page 147: Mux Setup Option Set
Setup Prt1 Prt2 Prt3 Prt4 Prt5 3610-A2-GB41-70 The Setup selection displays the first configuration option in the Setup option set, MUX Funct, which is shown below and which selects the DSU-TDM’s or DSU-MCMP’s mode of operation. MUX Funct: MCMP Next CBrdg Select the DSU-TDM’s or DSU-MCMP’s mode of...
Page 148 Refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide for a list of TDM or MCMP error messages, what they mean, and how they can be corrected.
Page 149: Choosing Mode Of Operation And Setting Configuration Options
DSU Operations Figure 5-13. Choosing Mode of Operation and Setting Configuration Options 3610-A2-GB41-70 July 1999 5-35...
Page 150: Complete List Of Mux Setup Configuration Options
5-36 Table 5-9 Function F nction Ignored Ignored Ignored July 1999 Mode of Operation MCMP Bridge Ignored Ignored Must set to Enab Must set to Disab Ignored Ignored Ignored Forced to Disab Forced to Disab Forced to Disab Ignored 3610-A2-GB41-70...
Page 151: Port Option Sets
There are two menus associated with Copy: Copy from and Copy to. 3610-A2-GB41-70 To access the Copy from menu, Change MUX Opts:...
Page 152: Complete List Of Mux Port Configuration Options
5-38 Table 5-10 (1 of 2) F nction Function MCMP Operation July 1999 Mode of Function MCMP Bridge Forced to Disab Ignored Ignored Ignored Ignored Forced to Const Forced to Const Ignored section of Chapter 4 and 3610-A2-GB41-70...
Page 153: Port Speed Configuration Options
Local (F1), or Remote (F2) and Address Confg Opts Load from: Activ Press the key to scroll the PrtSp selection into view 3610-A2-GB41-70 Table 5-10 (2 of 2) Function The Load from submenu displays the following selections: SAVE E d i t / S a v e:...
Page 154: Poll List
DSU’s poll list, as well as how a control DSU acquires a poll list. Refer to COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide for additional Poll List information. Adding Self to Poll List This PList selection is only available at a tributary DSU-MCMP unit operating in NonD diagnostics.
Page 155: Acquiring The Poll List
Refer to COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Dial Backup Module,and SNA Diagnostic Options, Applications Guide to learn how to access this subbranch, and for examples showing how to enter a dial string, to change it, to clear it, and to copy one directory entry into another.
Page 156: Phone
Refer to COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Dial Backup Module and SNA Diagnostic Interface Options, Applications Guide to learn how to access this subbranch, and for an example of how to enter or change the this telephone number.
Page 157: Control Branch
Only applies to TDM or MCMP applications, and only in Local mode. Refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide for additional information and examples. July 1999 DSU Operations Purpose...
Page 158: Transmitter Control
For example, if PrtSp for Port 3 is disabled, the port number selections would be 1, 2, 4, 5, or 6. Change Port 1 to Port 2 and disable the port for this example. Port Number: Port Number: July 1999 Ports Enter Enter Enter 3610-A2-GB41-70...
Page 159: Leds
DSU or DBM is enabled or disabled. Select Ports to enable or disable specific ports in Remote mode. Select a port as previously demonstrated. 3610-A2-GB41-70 LEDs The LEDs selection is only available from the Local branch. This selection allows you to monitor any of the TDM or MCMP ports at any given time.
Page 160: External Leads
6700 or 6800 Series NMS as part of its health and status poll response. Refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide for additional information and for examples. July 1999 Save LEDs Port: 2...
Page 161: Data Service Unit Menu
Data Service Unit Menu 3610-A2-GB41-70 July 1999...
Page 162 COMSPHERE 3600 Series Data Service Units July 1999 3610-A2-GB41-70...
Page 163 Data Service Unit Menu 3610-A2-GB41-70 July 1999...
Page 164 COMSPHERE 3600 Series Data Service Units July 1999 3610-A2-GB41-70...
Page 165: Configuration Worksheets
Worksheets provided in this appendix. Complete the information at the top of each worksheet first. If you have a Model 3610 (standalone) DSU with TDM or MCMP, enter your site in the location field. If you have a Model 3611 (carrier-mounted) DSU with TDM or MCMP, enter the DSU’s carrier and slot location.
Page 166 COMSPHERE 3600 Series Data Service Units This page intentionally left blank. July 1999 3610-A2-GB41-70...
Page 167 Configuration Worksheet for TDM Mode (1 of 3) Date:________________________________________________ Device:______________________________________________ Serial No.:____________________________________________ MUX Setup Options Value Options MUX Funct: (TDM) TDM, MCMP *, CBrdg, EBrdg, None Share DevA: Enab, Disab Lowest Port#: 1, 2, 3, 4, 5 #Ports in Gp: 2, 3, 4, 5, 6 Port Cntrl: Host, DSD...
Page 168 Configuration Worksheet for TDM Mode (2 of 3) Prt6 Options Value Async Sync Enab, Disab Async Rate =Sync, 1800, 1200, 600, 300, 150 AsyncBit/Char 6, 7, 8, 9, 10 Stop Bits 1, 2 Overspeed 1.25, 2.5 RTS Cntrl FrcOn, DTE TxCarrSel Const, Cntrl RxCarrSel...
Page 169 Configuration Worksheet for TDM Mode (3 of 3) DBM Options Value Rate(Kbps) { 14.4, 12.0, 9.6, 4.8, 2.4 TxClkSource { Int, RXC, DSU, Prt1, Prt2, Prt3, Prt4, Prt5, Prt6 CarrLossDisc { Yes, No Auto Retrain { Yes, No Single Rate { Yes, No AutoAnswer Enab, Disab...
Page 171 Configuration Worksheet for MCMP Mode (1 of 3) Date:________________________________________________ Device:______________________________________________ Serial No.:____________________________________________ MUX Setup Value MUX Funct: (MCMP) TDM, MCMP, CBrdg, EBrdg, None Share DevA: Enab, Disab Lowest Port #: 1, 2, 3, 4, 5 #Ports in Gp: 2, 3, 4, 5, 6 Port Cntrl: Host, DSD Share DevB:...
Page 172 Configuration Worksheet for MCMP Mode (2 of 3) Prt6 Options Value Async Sync Enab, Disab Async Rate =Sync, 1800, 1200, 600, 300, 150 AsyncBit/Char 6, 7, 8, 9, 10 Stop Bits 1, 2 Overspeed 1.25, 2.5 RTS Cntrl FrcOn, DTE TxCarrSel Const, Cntrl RxCarrSel...
Page 173 Configuration Worksheet for MCMP Mode (3 of 3) General Options Value DTE Port* EIA232, V.35 RTS Cntrl FrcOn, DTE CTS Cntrl Std, =RTS LSD Lead STD, Delay, FrcOn CTS Lead STD, Delay, FrcOn SystemStat Enab, Disab Circ Assur Enab, Disab Tst Pattern AT&T, Std RespondRDL...
Page 175 Configuration Worksheet for Bridge Mode (1 of 2) Date:________________________________________________ Device:______________________________________________ Serial No.:____________________________________________ MUX Setup Options Value MUX Funct: TDM, MCMP , CBrdg, EBrdg, None (CBrdg or EBrdg) Brdge Rate =DSU, 56, 19.2, 14.4, 12.0, 9.6, 4.8, 2.4 Brdg Timing Int, Auto, Prt1, Prt2, Prt3, Prt4, Prt5, Prt6 Share DevA: Enab Lowest Port #...
Page 176 Configuration Worksheet for Bridge Mode (2 of 2) General Options Value DTE Port EIA232, V.35 RTS Cntrl FrcOn CTS Cntrl Std, =RTS LSD Lead STD, Delay, FrcOn CTS Lead STD, Delay, FrcOn SystemStat Enab, Disab Circ Assur Enab, Disab Tst Pattern AT&T, Std RespondRDL Enab, Disab...
Page 177 Date:_______________________________________________ Device:_____________________________________________ Serial No.:___________________________________________ DSU Options Value Rate(Kbps) 64CC, 64L, 56, 38.4, 19.2, 9.6, 4.8, 2.4 PrtSp(Kbps) 64, 56, 48, 38.4, 32, 28.8, 19.2, 18.8, 18.0, 16.8, 14.4, 12.0, 9.6, 9.2, 8.4, 7.2, 4.8, 4.4, 4.0, 2.4 , 2.0, 1.2, Disab TxClkSource Int, RXC, Ext, DDS Msg Clamp...
Page 178 Configuration Worksheet for Basic (DBM-V, DBM-S, or DBM-D) Date:________________________________________________ Device:______________________________________________ Serial No.:____________________________________________ Diagnostic DBM Value Options Diag Type NonD, [Disr], Mixed, None 2nd Ch(bps) 100, [400], 800, 1200, 1600 RemoteDiag V.54, [Enhan], 2500 Diagnostic General Value Options Position [Cntrl], Trib, G2Trb LinkConfig [Pt-Pt], M-Pt Resp Period...
Page 179: Pin Assignments
Table C-8 provides its pin assignments. Refer to the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Operator’s Guide and the COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Dial Backup Module and SNA Diagnostic Interface Options, Applications Guide for additional pin assignments.
Page 180: Time Division Multiplexer Connector Used With Non-Modular Tdm
Time Division Multiplexer Connector Used with Non-Modular TDM 60-Position High-Density Connector P1 Pin J2 = Port 2 J3 = Port 3 J4 = Port 4 Table C-1 (1 of 3) 25-Position Socket D-Sub Port J5 = Port 5 J6 = Port 6 July 1999 3610-A2-GB41-70...
Page 181 Time Division Multiplexer Connector Used with Non-Modular TDM 60-Position High-Density Connector P1 Pin J2 = Port 2 J3 = Port 3 J4 = Port 4 3610-A2-GB41-70 Table C-1 (2 of 3) 25-Position Socket D-Sub Port J5 = Port 5 J6 = Port 6...
Page 182 Time Division Multiplexer Connector Used with Non-Modular TDM 60-Position High-Density Connector P1 Pin J2 = Port 2 J3 = Port 3 J4 = Port 4 Table C-1 (3 of 3) 25-Position Socket D-Sub Port J5 = Port 5 J6 = Port 6 July 1999 3610-A2-GB41-70...
Page 183: Digital Bridge Connector Used With Non-Modular Tdm/Mcmp
60-Position High-Density Connector P1 Pin J2 = Port 2 J3 = Port 3 J4 = Port 4 NC = No Connection 3610-A2-GB41-70 Table C-2 (1 of 3) 25-Position Plug D-Sub Port J5 = Port 5 J6 = Port 6 July 1999...
Page 184 High-Density Connector P1 Pin J2 = Port 2 J3 = Port 3 J4 = Port 4 NC = No Connection Table C-2 (2 of 3) 25-Position Plug D-Sub Port J5 = Port 5 J6 = Port 6 July 1999 3610-A2-GB41-70...
Page 185 60-Position High-Density Connector P1 Pin J2 = Port 2 J3 = Port 3 J4 = Port 4 NC = No Connection 3610-A2-GB41-70 Table C-2 (3 of 3) 25-Position Plug D-Sub Port J5 = Port 5 J6 = Port 6 July 1999...
Page 186: C-3 Pin Locations On The 60-Position High-Density Connector Of The Non-Modular Carrier-Mounted Tdm/Mcmp Circuit Card
COMSPHERE 3600 Series Data Service Units Figure C-3. Pin Locations on the 60-Position High-Density Connector of the Non-Modular Carrier-Mounted TDM/MCMP Circuit Card July 1999 3610-A2-GB41-70...
Page 187: Model 3611 Dsu
(APL) extended circuit when the DDS backbone goes into backup. This pin signals the APL modem to fall back to the predetermined backup speed if the APL modem has fallback capability. 3610-A2-GB41-70 Table C-3 Circuit Name...
Page 188: Eia-232-D/V.24 Connector (Port 1
Data Terminal Ready (DTR) Remote Digital Loopback (RL) Ring Indicator (RI) Data Signal Rate Selector I — DTE Source (alternate external control alarm Lead I) Transmitter Signal Element Timing — DTE Source Test Mode (TM) July 1999 F nction Function 3610-A2-GB41-70...
Page 189: Connector (Port 1)
Y, AA 114 a, b V, X 115 a, b Ring Indicator is only available on a DBM-V, DBM-S, or DBM-D at this time. 3610-A2-GB41-70 Table C-5 V.35 Connector (Port 1) Signal Ground (SG) Transmit Data (TXD) Received Data (RXD)
Page 190 COMSPHERE 3600 Series Data Service Units 99-16294 Figure C-4. Modular DSU V.35 Adapter Plug Figure C-5. Modular DSU V.35 Adapter Cable (Feature Number 3000-F1-510) C-12 July 1999 3610-A2-GB41-70...
Page 191: Model 3610 (Ports 2 - 6) And Modular Dsu 25-Pin V.35 Connector
Model 3610 (Ports 2 – 6) and Modular DSU 25-Pin V.35 Connector 25-Pin Connector 34-Pin Connector (Model 3610 (Modular DSU Ports 2 – 6) V.35 Adapter) Pin Number Pin Number 24, 11 23, 22 15, 2 16, 3 14, 1...
Page 192: C-6 6-Port Connector Module (Part Number 870-1700-0011)
COMSPHERE 3600 Series Data Service Units Figure C-6. 6-Port Connector Module (Part Number 870-1700-0011) C-14 July 1999 3610-A2-GB41-70...
Page 193: Eia-232/V.24 Tdm/Mcmp Connector (Modular And Standalone - Ports 2 Through 6
(APL) extended circuit when the DDS backbone goes into backup. This pin signals the APL modem to fall back to the predetermined backup speed if the APL modem has fallback capability. 3610-A2-GB41-70 Table C-7 Transmit Data (TXD)
Page 194: C-7 6-Port V.35 Interconnect Cable (Feature Number 3600-F3-500)
COMSPHERE 3600 Series Data Service Units Figure C-7. 6-Port V.35 Interconnect Cable (Feature Number 3600-F3-500) C-16 July 1999 3610-A2-GB41-70...
Page 195: 6-Port V.35 Interconnect Cable Connector
2, 14 3, 16 15, 12 17, 9 24, 11 Ring Indicator is only available on a DBM-D, DBM-S, or DBM-V at this time. 3610-A2-GB41-70 Table C-8 Signal Ground (SG) Request-to-Send (RTS) Clear-to-Send (CTS) Data Set Ready (DSR) Received Line Signal Detect (LSD)
Page 196 COMSPHERE 3600 Series Data Service Units C-18 July 1999 3610-A2-GB41-70...
Page 197 3610-A2-GB41-70 ............
Page 198 When a terminal user submits a file for printing, the file is transported over the interactive channel to the host computer, where it is directed to a text-formatting program. The resulting formatted file is transported to the remote printer. July 1999 3610-A2-GB41-70...
Page 199 Elast Stor: Disab RTS/CTS Del: 0 AntiStream: Disab PrtSp – DSU Prt1: 7.2 Prt2: 2.4 Prt3 through Prt6: Disab Underspeed: Prt2 3610-A2-GB41-70 Rate(Kbps): 9.6 TxClkSource: DDS Msg Clamp: Enab AggrSwitch: Disab Diag – DSU Diag Type: NonD 2nd Ch(bps): 400 Disr Type: 3600e Diag –...
Page 200 P5/6 FEP Sh: Disab Prt1, Prt2, and Prt3 (Prt4 through Prt6 N/A) Async Sync: Disab TxCarrSel: Const RxCarrSel: Const Elast Stor: Disab RTS/CTS Del: 0 AntiStream: Disab PrtSp – DSU Prt1: 4.8 Prt2: 9.6 Prt3: 19.2 Prt4 through Prt6: Disab July 1999 3610-A2-GB41-70...
Page 201 2nd Ch(bps): 400 RemoteDiag: Enhan Diag – Gen Position: Cntrl for control; Trib for tributary LinkConfig: Pt-Pt Diag Conn: CC for control; N/A for tributary 3610-A2-GB41-70 AutoAnswer: Enab Call Setup: Pswrd RxPwd: enter received password TxPwd: enter transmit password V.13 Signl: Disab...
Page 202 (Alrm LEDs light at the affected DSUs and begin DDS TimeOut for dial backup). The NMS and control DSU display a Tributary Time-out alarm for the two tributaries. Data transmission to the other drop is not affected. July 1999 3610-A2-GB41-70...
Page 203 After all calls have been completed, full restoration is accomplished at 9600 bps. Figure D-4. Digital Bridge Configuration: Automatic Partial Backup – Dial Backup Active 3610-A2-GB41-70 It is not likely that backup can be accomplished before the network has timed out and the affected tributaries have been taken off the host’s active list.
Page 204 DBM-V, and a tributary DSU-DBM that support the configuration scenario just described follow. Please note that all DBM-Vs here should be configured the same – only the passwords and telephone numbers should differ. The same holds true for the tributary DSU-DBMs. July 1999 3610-A2-GB41-70...
Page 205 Diag – Gen Position: Cntrl LinkConfig: M-Pt Trib TimOut: enter amount of time DTE Port: EIA232 3610-A2-GB41-70 Set configuration options for automatic partial backup using the DBM-V as follows (Configuration Worksheet for Basic (DBM-V, DBM-S, or DBM-D) Mode): Diag – DBM...
Page 206 The multipoint network in Figure D-6 Model 3611 DSU with a digital bridge and two DBM-Ss, and two a Model 3610 DSUs with Switched 56 DBMs. Since the DSUs are configured for nondisruptive diagnostics ( Diag Type: NonD ), in-band framing is necessary, and all DSU/DTE interfaces operate at 55600 bps.
Page 207 After the tributary DSU-DBM has set up the call, each DSU switches the DTE’s data to its DBM. After all calls are completed, full restoration is accomplished at 56 kbps. 3610-A2-GB41-70 Nondisruptive Diagnostics The DBMs (the DBM-S and its tributary Switched 56 DBM) provide valid call setup messages to the NMS.
Page 208 RxPwd: enter received password TxPwd: enter transmit password V.13 Signl: Enab Primary Core: Yes DTRCallCon: Orig EchoCancel: Disab DTE Port: EIA232 RTS Cntrl: FrcOn CTS Cntrl: Std AntiStream: Disab LSD Lead: Std CTS Lead: Std DSR FrcOn: Disab July 1999 3610-A2-GB41-70...
Page 209 Diag – DBM Diag Type: NonD RemoteDiag: Enhan Diag – Gen Position: Trib LinkConfig: M-Pt Resp Period: 1 M-Pt SymPrt: Disab 3610-A2-GB41-70 PrtSp(Kbps): 56 AutoAnswer: Enab TxElasStor: Disab RxElasStor: Disab Call Setup: Pswrd RxPwd: enter received password TxPwd: enter transmit password V.13 Signl: Enab...
Page 210 If dropped from the poll list completely, you will have to place the remote DTEs back onto the FEP’s poll list. July 1999 3610-A2-GB41-70...
Page 211 Configuration Scenarios Figure D-7. Extended Bridge Configuration: Automatic Partial Backup – Dial Backup Not Active 3610-A2-GB41-70 July 1999 D-15...
Page 212 COMSPHERE 3600 Series Data Service Units Figure D-8. Extended Bridge Configuration: Automatic Partial Backup Active – Dial Backup Active for All Drops D-16 July 1999 3610-A2-GB41-70...
Page 213 Configuration Scenarios Figure D-9. Extended Bridge Configuration: Automatic Partial Backup Active – Dial Backup Active for Two Drops 3610-A2-GB41-70 July 1999 D-17...
Page 214 Msg Clamp: Enab TxElastStor: Disab AggrSwitch: Disab Diag – DSU Diag Type: Mixed 2nd Ch(bps): 400 Disr Type: 3600 Diag – Gen Position: Cntrl LinkConfig: M-Pt Trib TimOut: enter amount of time M-Pt SymPrt: Disab DTE Port: EIA232 July 1999 3610-A2-GB41-70...
Page 215 Disr Type: 3600e Diag – Gen Position: Cntrl LinkConfig: M-Pt DTE Port: EIA232 3610-A2-GB41-70 Network Management-Controlled Full Backup Using an Extended Bridge The assumed configuration for backup shows when dial backup is not active, while shows when dial backup is active) that is controlled by an...
Page 216 COMSPHERE 3600 Series Data Service Units Figure D-10. NMS-Controlled Full Backup Configuration – Dial Backup Not Active D-20 July 1999 3610-A2-GB41-70...
Page 217 Configuration Scenarios Figure D-11. NMS-Controlled Full Backup Configuration – Dial Backup Active 3610-A2-GB41-70 July 1999 D-21...
Page 218 DBM-V, and a tributary DSU-DBM supporting this application follow. Please note that all DBM-Vs here should be configured the same – only the passwords and telephone numbers should differ. The same holds true for the tributary DSU-DBMs. July 1999 3610-A2-GB41-70...
Page 219 LinkConfig: M-Pt Trib TimOut: enter amount of time Diag Conn: CC M-Pt SymPrt: Disab DTE Port: V.35 3610-A2-GB41-70 Set the extended bridge configuration options as follows (Configuration Worksheet for Bridge Mode): MUX – Setup MUX Funct: EBrdg Bridge Rate: 14.4...
Page 220 Single Rate: Yes AutoAnswer: Enab TxElasStor: Disab RxElasStor: Disab Call Setup: Pswrd RxPwd: enter received password TxPwd: enter transmit password V.13 Signl: Enab Primary Core: No DTE Port: V.35 RTS Cntrl: DTE Bkup Auto Bckup: Disab AutoRestor: Disab July 1999 3610-A2-GB41-70...
Page 221 Pertinent configuration options for both the control DSU with MCMP and the Site 1 tributary DSU supporting this configuration scenario follow. 3610-A2-GB41-70 Configuration Options Set the FEP port sharing configuration options for the control and tributary DSU-MCMPs as follows (Configuration Worksheet for MCMP Mode): MUX –...
Page 222 COMSPHERE 3600 Series Data Service Units Figure D-12. MCMP using FEP Port-Sharing Configuration D-26 July 1999 3610-A2-GB41-70...
Page 223 The central-site DBM-Ss are configured for disruptive diagnostics (Diag Type: Disr). Figure D-13. Dedicated MCMP Backup Configuration with Switched 56 DBMs 3610-A2-GB41-70 The extended bridge is configured to operate at 56 kbps, automatically taking its timing from any port, and configured for digital-sharing with two ports in the digital-sharing group, Prt2 being the lowest-numbered port.
Page 224 Prt2: B Prt3: C Prt4: None for control; C for top tributary, None for bottom tributaries Prt5 and Prt6: None Rate(Kbps): 56 TxClkSource: DDS AggrSwitch: Enab AgSw Timing: Aggr Diag – DSU Diag Type: NonD Disr Type: Br56 July 1999 3610-A2-GB41-70...
Page 225 Disr Type: 3600e Diag – Gen Position: Cntrl LinkConfig: M-Pt DTE Port: V.35 3610-A2-GB41-70 Set configuration options for automatic partial backup using the tributary Switched 56 DBMs, DBM-Ss, or DBM-Ds as follows (Configuration Worksheet for Basic (DBM-V, DBM-S, or DBM-D) Mode): Diag –...
Page 226 DDS facility is restored. There will be a subnetwork No Response alarm at the control MCMP for each tributary DSU that is out of service. That happens even when the tributary is in Backup mode. July 1999 3610-A2-GB41-70...
Page 227 Pertinent configuration options for the control and tributary DSU-MCMPs, and a DSU-DBM supporting this application are provided. Figure D-15. MCMP FEP Port-Sharing Configuration – Dial Backup Active 3610-A2-GB41-70 Configuration Options Set the FEP port sharing configuration options for the control and tributary DSU-MCMPs as follows (Configuration Worksheet for MCMP Mode): MUX –...
Page 228 AutoRestor: N/A for control; Enab for tributary NtwkTimOut: N/A for control; enter amount of time for tributary RestorTimOut: N/A for control; enter amount of time for tributary TriesTimOut: N/A for control; enter amount of time for tributary July 1999 3610-A2-GB41-70...
Page 229 AntiStream: Disab PrtSp – DSU Prt1: 7.2 Prt2: 7.2 Prt3: 4.8 Prt4: 4.8 Prt5 and Prt6: Disab 3610-A2-GB41-70 Diag – DSU Diag Type: NonD 2nd Ch(bps): 40 Disr Type: 3600e Diag – Gen Position: Cntrl LinkConfig: Pt-Pt Rate(Kbps): N/A for control; 14.4 for tributary TxClkSource: Ext for control;...
Page 230 COMSPHERE 3600 Series Data Service Units D-34 July 1999 3610-A2-GB41-70...
Page 231 5-15 adapter, V.35, C-12 adding, TDM/MCMP model 3610, 2-13 model 3611, 3-6 address, control, DSU, 4-53 addressable devices, number of, 1-4 addresses, valid, 4-53 addressing LPDA-2, 4-53, 4-54 multipoint backup, 4-40 tributary, 4-40, 4-41 aggregate switch, 5-13 switched backup...
Page 232 DBM, DBM-V/DBM-S/DBM-D, backup branch, 5-12 DBM-D, 4-45, 4-46 2-wire, 1-9 DBM-S, 4-45, 4-46 4-wire, 1-9 DBM-V, 1-9, 4-45, 4-46 DBM-V/DBM-S/DBM-D, 3-2 status indicators, 5-6 DBU, aggregate switching, 1-3 DCE, interface, digital bridge, 4-33 menu tree, 5-7 software configuration, 2-10 July 1999 3610-A2-GB41-70...
Page 233 LPDA 2, 4 56 NetView initiated, 4-55 not active, D-15 automatic partial, D 6 FEP port sharing, configuration, D 30 NMS, D 21 DTR, capability, 4-46 3610-A2-GB41-70 digital bridge, 1-3, 4-35 active, 4-45 broadcast, 4-37 capability, 1-5 configuration scenarios, D-6...
Page 234 4-49 connection distances, 4-48 operation, 4-48 point-to-point, 4-49 lamp, test, 5-31 LCD, power-up, 2-8, 3-8 leads, external, 5-46 LEDs, 5-45 line speeds, 1-2, 1-4, 4-23 link problem determination aid, 1-5 segment level 1, 4-53 level 2, 4-53 July 1999 3610-A2-GB41-70...
Page 235 5-35 idle, 5-12 MCMP, 4-4, 5-33 standby, 5-12 TDM, 4-4, 5-33 model 3610 DSU with TDM/MCMP, 2-9 modular, pin connector, ports 2 - 6, C-13 switch locations, 2-3 with SNA Diagnostic Interface, 1-6 with TDM or MCMP, 1-6, 1-7...
Page 236 5-42 assignments, C-16 overview, C-1 locations, non-modular, connector, circuit card, point-to-point backup, 1-3 circuit, digital sharing, 4-58 LADS, 4-49 multiplexing, 4-5, 4-10 single port, async/sync capability, 4-8 transmission, 4-2 poll, list, 5-40 acquiring, 5-41 adding to, 5-40 July 1999 3610-A2-GB41-70...
Page 237 TDM/MCMP, 5-5 subbranches, 5-7 subnetwork, 5-15 health and status, 5-10 switch aggregate, 5-13 flex interface, 2-6 switch locations model 3610, 2-3 model 3611, 3-3 modular, TDM/MCMP, 3-4 switched 56 DBM backup, 4-19 dedicated MCMP, 4 28 dedicated MCMP, D-27 carrier emulation, 1-3, 1-4, 4-25...
Page 238 COMSPHERE 3600 Series Data Service Units status indicators, 5-5 synchronous channels, D-2 TDM/MCMP adding flex model 3610, 2-13 model 3611, 3-6 connector, EIA-232/V.24, C-15 digital test, 5-26 modular DSU, 3-2 non-modular, connector, C-5 non-modular DSU, 3-2 ports 2 - 6, high-density, connector, C-9...

This manual is also suitable for:

3611 Comsphere 3610 Comsphere 3611 Comsphere 3600 series

Paradyne 3610 Application Manual

Table of Contents

Comsphere 3600 Series Data Service Units

Preface

1 Overview

2 Model 3610 Installation

3 Model 3611 Installation

4 Principles of Operation

5 Dsu Operations

Quick Links

Chapters

Related Manuals for Paradyne 3610

Summary of Contents for Paradyne 3610