Connecting the DSU to a DTE, Installing Cables | Paradyne 3551

COMSPHERE 3550 Series Data Service Units

Connecting the DSU to a DTE

The DSU's rear panel has both a 25-pin EIA-232-D/ V.24 connector and a 34-pin CCITT V.35 connector (used for higher operating speeds). You can use either interface.

When the unit is equipped with a TDM/Flex, either of these interfaces can be used as Port 1. The TDM/Flex provides an additional interface to be used as Port 2. This is a D-type connector. If the port is to operate at a speed greater than 19.2 kbps, use the V.35 interconnect cable to provide an interface between the TDM/Flex's D-type connector and the DTE cable's V.35 connector.

Figure 2-7 shows a DSU as well as a DSU equipped

with a TDM/Flex. The DSU without TDM/Flex illustrates cabling for an EIA-232 application; the DSU with TDM/Flex illustrates cabling for V.35 applications. Refer to this figure as you connect your DSU to the data terminal equipment (DTE). Be sure to select the appropriate cable, EIA-232 or V.35, for your application.

.Procedure

1.Connect the plug end of the DTE cable to Port 1, either the EIA-232-D or the V.35 connector. (Figure 2-7 shows Port 1 using the EIA-232-D connector.)

Tighten the two holding screws.

2.Connect the other end of the cable to the appropriate port on the computer or DTE.

Tighten any holding screws.

3.If necessary, activate the port to match the interface, either EIA-232 or V.35 (the default setting is EIA-232).

Figure 2-7. Installing Cables

2-10

December 1996

3550-A2-GB20-20

Image 31

Paradyne 3551 manual Connecting the DSU to a DTE, Installing Cables

Contents

Comsphere 3550 Series Data Service Units Models 3550 Trademarks Warranty, Sales, and Service InformationCopyright 1996 Paradyne Corporation. All rights reserved Important Safety Instructions CC DGD D C D CC Interface Data Rate Code Bps Government Requirements Comsphere 3550 Series Data Service Units Table of Contents Glossary Index List of Figures List of Tables Hubbing Device CC IN/DC OUT Jack Pin Assignments Preface How to Use This GuideAbout This Guide Reference Documents Related Documents About Your DSU Standard FeaturesOverview 32 DBM Optional Features Technical Specifications Upgrades AvailablePort TDM/Flex CSA Specifications Criteria DSU Heat Dissipation MAX. AT 115 VAC Lads DSU Technical Specifications DOC DBM Technical Specifications Criteria Port TDM/Flex Technical Specifications Equipment Warranty Support Before You Begin Installing the Model 3550 DSU Procedure How to Change Hardware Straps Permissive V.32 DBM transmit output level of ±9 dBm Installing the DSU Where to Place the DSU Power-Up Routine Connecting to the Network Connecting to the Dial or Pstn Network Connecting to the NMS Model 3550 DSU DDS Lads Network Connection Connecting to the DDS or Lads Network Addressing the Unit Lads Connection Distances Data Rate Wire Gauge AWG Kbps Addressing Example Tributary DSU Addressing Installing Cables Connecting the DSU to a DTE Verifying the Network Verifying Operation and Testing ConnectionsConnecting Port Verifying Network Addresses Verifying TDM/Flex Operation Verifying DBM OperationOther Tests Installing the Model 3551 DSU Before You Begin Off Strap State Function Designation Jumper Strap Model 3551 DSU Jumper Straps Comsphere 3000 Series Carrier, Rear View Model 3551 DSU Installation and Circuit Pack Lock V.35 Interconnect Cable Installation Connecting to Dial or Pstn Network Connecting to DDS or Lads Network Verifying Operation and Testing Connections Verifying Network Addresses, the Network, and DBM Operation To Connect the Sdcp to a DSU Other Tests Operating the DSU DCP and Sdcp Operation Model 3550 Diagnostic Control Panel Sdcp and Model 3551 DSU Faceplate Keypad Top-Level Menu Status BranchMenu Structure Health and Status Identity Terminal PowerDTE Status Circuit Quality Identity Descriptions Backup BranchDial Backup Operation Configuring the Unit for Dial Backup Auto Bckup ± Select Enab Understanding Operating Modes Manual DDS Restoration Manual BackupPlacing a Backup Call Manual Dial Backup Termination Loopback Test BranchAbort Device Test Remote Digital Loopback Bilateral LoopbackDTE Loopback Digital Loopback End-to-End Test Bit Error Rate Test Lamp Test Configuration BranchSelecting Menu Mode Bit Error Rate Test Results Information Displayed Selecting an Application Configuration Reconfiguring a DSU Port Configuration OptionsReconfiguring a TDM/Flex Port Displaying the Poll List Poll ListChanging the Poll List Q u i r P o l l L i s t Abort Acquiring the Poll List Entering a Telephone Number Directory Assigning an Address Directory Entry and Password Characters UsePhone Network Address External Leads Control BranchTransmitter Control LEDs Messages Branch Lead States SymbolReporting External Lead Changes to NMS Security Functions Available Access Level Security Access LevelsFront Panel DCP Security Configuring the Unit Editing Configuration Values Using the DCP to Set Configuration Options Example Using the DCP Saving Configuration Options Ptpc Understanding the Tables Configuration Option Tables DDS DSU Configuration Options Support a Transmit Elastic Store Diagnostic DSU Configuration Options Diagnostic DBM Configuration Options Diagnostic General Configuration Options Diagnostic External DBU Configuration Options DTE operation RXC DBM Configuration Options Disab Select disable if you do not have an extended network DSUs and DBMs If DTR is low DCE External DBU Configuration Options DTE General Configuration Options=RTS Select to ignore the Loopback command Signal is dropped DTE asynchronous data rate Backup Configuration Options TriesTimeOut period expires MUX Port Configuration Options MUX Setup Configuration OptionsDSD 1800 Select the rate of the asynchronous port Configuration option Receiver Carrier Select Messages to the DSU Port Speed DSU Configuration Options Port Speed DBM Configuration Options Port Speed External DBU Configuration Options Port1 DSU 9.6 C Local Remot Msg DSU Menu a Comsphere 3550 Series Data Service Units DSU Menu Local branch Local/Remote Menu Subbranches Overview Instructions Configuration Worksheets B Model 3550 or 3551 DSU Configuration Worksheet 1 Model 3550 or 3551 DSU Configuration Worksheet 2 Full Menu Mode Disabled Port Speed DSU Value Status Indicators Status Indicators and C Control Panel Messages Label Color Description DSU Status IndicatorsSdcp Status Indicators Table C-1 Table C-3 Device Health and Status Messages Condition Control Panel MessagesFormat Health and Status Messages Table C-3 Device Health and Status Messages Condition Pnnn Tst test,init Message Condition Failnreason Table C-4 Expanded Health and Status Messages Condition DTR Table C-5 Subnetwork Health and Status Messages ConditionMUX Table C-7 Dial Backup Progress Messages Condition Command Progress MessagesProgress Messages Table C-8 Command Error Messages Condition Action Error Messages DBM Table C-10 TDM/Flex Error Messages Condition Action Prt2 Table C-10 TDM/Flex Error Messages Condition Action Pin Assignments D Figure D-1. Digital Network Connector Pin Circuit Function Table D-1Hubbing Device GND DCOSD/CCIRDDCORD/CCISD DCOCTS/CCIRTS DCORTS/CCICTS OUT DCOSD/CCIRD Comsphere 3550 Series Data Service Units SBB SBA Figure D-4. V.35 Interconnect Cable 3000-F1-510 Cable Circuit Name Pin Number Figure D-5. EIA-232-D Crossover Cable 4951-035F Figure D-6. V.35 Crossover Cable 3211-178F Point-to-Point Applications Application Configurations E Comsphere 3550 Series Data Service Units Multipoint Applications Figure E-2. Multipoint Application Configurations Comcode = Factory InstallEquipment List Equipment Comsphere 3000 Series Carrier, Installation Manual Equipment Part Number Pin-to-Pin EIA-232 Cable straight connection 10 i Ð Active core Glossary CSA DOC LDM RTS TXD Index Index-2 Configuring unit DSD Index-5 MUX Index-7 SDCP, C-2 Index-9