Multi-Tech Systems MT56DSU-S manual Specifications

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Chapter 1 - Introduction

1.6Specifications

Model Number:	MT56DSU-S
Device Operation:	combined DSU and CSU
Data Rates:
Synchronous	56 Kbps (Data port and line)
Interfaces:
Data (RS232)	DB25S (female) - Data port
Data (V.35)	DB25S (female) - Data port with an adapter cable
Line (DDS)	RJ-48 8-position keyed jack - Line
Power Requirements:	115V AC, 50-60 Hz, 2 Watts
Temperature:	32 to 120° F (0 to 50° C)
Humidity:	20 to 90% (non-condensing)
Dimensions:	1" H x 4.125" W x 5.5" D
	2.5 cm H x 10.8 cm W x 14.2 cm D
Weight:	8 oz. (224 g)
Certification:	FCC Part 15 Class B
	FCC Part 68
	UL Listed
Compatibility:	AT&T Pubs 62310
FIC Codes:	04DU5-56
USOC Jack:	RJ-48S
Transmitter/Receiver:
Modulation	bipolar return to zero (BRZ)
Transmit Level	1.4V peak (+6dBm) into 135 Ohm at 56 Kbps
Output Impedance	135 ohms
Receive Levels	+6 to -45 dBm
Input Impedance	135 ohms
Delay Times (in secs.)	RTS/CTS	DCD on	DCD off
	0.4	0.3	0.2

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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 Multi-Tech Systems, Inc. Warranty & Repairs Policies Warranty2 U.S. and Canadian Customers International Distributors International Customers outside U.S.A. and CanadaRepair Procedures for U.S. and Canadian Customers Repair Procedures for International 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