Multi-Tech Systems MT56DSU-S manual Switch Settings Mode Position Description

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Chapter 2 - Front & Back Panel Descriptions

2.4Switch Settings

An 8-position DIP switch is located on the right side of the MT56DSU-S printed circuit board (when viewed from the front, as in Figure 2-3). The DIP switch functions are described in the following table.

1 2 3 4 5 6 7 8

DIP-Switch

			Figure 2-3. Switch Settings
Table 2-1. Switch Settings
Switch	Mode		Position	Description
1	Reset		UP*	Normal
			DOWN	Reset
2	Clocking		UP*	DDS
			DOWN	Internal
3	Loopback		UP*	Normal
			DOWN	Loopback
4-8	Not Used

*Factory default setting

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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 Warranty Multi-Tech Systems, Inc. Warranty & Repairs Policies2 U.S. and Canadian Customers International Distributors International Customers outside U.S.A. and CanadaRepair Procedures for International Customers Repair Procedures for U.S. and Canadian CustomersRepairs 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