Multi-Tech Systems MT56DSU-S manual Setup, Back Panel Connections

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Chapter 3 - Unpacking & Setup

3.4Setup

Perform the following procedure to connect your cables and, if necessary, change to V.35 signaling on the data port.

1.If the DTE device has a V.35 interface, the internal shunt must be moved to the V.35 position and a V.35 adapter cable must be connected to the data connector (labeled “RS232”). Refer toV.35 Shunt for procedures on moving the shunt to the V.35 position. Refer to Appendix A for cable details.

If the DTE device has an EIA-232-D interface, a standard RS232 (straight-thru) cable can be used.

RS232

POWER

LINE

To DTE Device

To Power Outlet

To Line Jack

Figure 3-1. Back Panel Connections

2.Connect the external wall transformer power supply to the DSU, then plug the power supply into a live AC outlet. The DSU has no power switch; however, when power is applied to the unit, the front panel LEDs will light.

3.Connect the DTE device to the RS232 connector on the back of the DSU.

4.Connect an RJ-48 phone cable to the LINE connector on the back of the DSU. Connect the other end of the phone cable to the local access line jack.

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Contents User Guide MT56DSU-S Syncronous 56K bps Data Service UnitRevision Date Description Contents Service & Warranty Introduction About This Manual IntroductionCSU/DSU Basics DescriptionDSU Functions CSU FunctionsFeatures Specifications Front & Back Panel Descriptions Front Panel Front Panel2 RS232 Connector Power ConnectorLine Connector Back PanelSwitch Settings Mode Position Description Switch SettingsShunts ShuntsUnpacking & Setup Unpacking Telecom Safety WarningsBack Panel Connections SetupV.35 Shunt Diagnostics Loopback Test Loopback Test DiagramDSU Loopback Test Line Loopback TestDSU Back-to-Back Test DSU Back-to-Back Test DiagramService & Warranty 2 U.S. and Canadian Customers Multi-Tech Systems, Inc. Warranty & Repairs PoliciesWarranty International Distributors International Customers outside U.S.A. and CanadaRepairs Repair Procedures for U.S. and Canadian CustomersRepair Procedures for International Customers Internet Site Technical SupportAppendix Introduction Appendix a Application ExamplesLocal Area Data Set Application DDS Point-To-Point ApplicationFigure A-3. DDS Multipoint Polled Application DDS Multipoint Polled ApplicationRJ-48 Connector Appendix B Interface Signals and Connector PinoutsPin Description Signal DB25S ConnectorPin Description DB25S Connector with V.35 InterfaceBuild Instructions Loopback Cable MTS P/NBack-To-Back Cable MTS P/N Figure B-7. Back-toBack Cable ConnectorFCC Regulations for Telephone Line Interconnection Appendix C Regulatory InformationCanadian Limitations Notice S000327A