Multi-Tech Systems MT56DSU-S manual Unpacking, Telecom Safety Warnings

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Chapter 3 - Unpacking & Setup

3.1Introduction

This chapter describes the unpacking of the DSU, cable connections depending on whether EIA-232-D or ITU-T V.35 interface signaling is used on the data port, and how to configure the unit dependent on your site situation. Once the DSU is configured, then the data port can be connected to your data device.

3.2Unpacking

The shipping box contains the DSU, power adapter, and a documentation CD with a User's Guide. Inspect the contents for signs of any shipping damage. If damage is observed, do not power up the unit, contact Multi-Tech's Technical Support for advice (refer to Chapter 5 - Warranty). If no damage is observed, place the DSU in its final location and verify the signal levels (EIA-232-D or ITU-T V.35) for the data port, and connect your cables, phone lines, and power supply.

3.3Telecom Safety Warnings

1.Never install telephone wiring during a lightning storm.

2.Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.

3.This product for use with UL and cUL listed computers.

4.Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.

5.Use caution when installing or modifying telephone lines.

6.Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of electrical shock from lightning.

7.Do not use the telephone to report a gas leak in the vicinity of the leak.

8.To reduce the risk of fire, use only 26AWG or larger telecommunications cord.

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Contents MT56DSU-S Syncronous 56K bps Data Service Unit User GuideRevision Date Description Contents Service & Warranty Introduction Introduction About This ManualDescription CSU/DSU BasicsDSU Functions CSU FunctionsFeatures Specifications Front & Back Panel Descriptions Front Panel Front PanelPower Connector 2 RS232 ConnectorLine Connector Back PanelSwitch Settings Switch Settings Mode Position DescriptionShunts ShuntsUnpacking & Setup Telecom Safety Warnings UnpackingSetup Back Panel ConnectionsV.35 Shunt Diagnostics Loopback Test Diagram Loopback TestLine Loopback Test DSU Loopback TestDSU Back-to-Back Test Diagram DSU Back-to-Back TestService & Warranty Warranty Multi-Tech Systems, Inc. Warranty & Repairs Policies2 U.S. and Canadian Customers International Customers outside U.S.A. and Canada International DistributorsRepair Procedures for International Customers Repair Procedures for U.S. and Canadian CustomersRepairs Technical Support Internet SiteAppendix Appendix a Application Examples IntroductionLocal Area Data Set Application DDS Point-To-Point ApplicationDDS Multipoint Polled Application Figure A-3. DDS Multipoint Polled ApplicationAppendix B Interface Signals and Connector Pinouts RJ-48 ConnectorDB25S Connector Pin Description SignalDB25S Connector with V.35 Interface Pin DescriptionLoopback Cable MTS P/N Build InstructionsFigure B-7. Back-toBack Cable Connector Back-To-Back Cable MTS P/NAppendix C Regulatory Information FCC Regulations for Telephone Line InterconnectionCanadian Limitations Notice S000327A