Patton electronic 2703-X21 user manual User Manual

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USER

MANUAL

MODEL 2703-X21

G.703/E1 Digital Modem

C E R T I F I E D

An ISO-9001

Certified Company

Part# 07M2703-X21-C

Doc# 031111UC

Revised 6/19/98

SALES OFFICE

(301)975-1000

TECHNICAL SUPPORT

(301)975-1007 http://www.patton.com

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Contents User Manual Features ServiceRadio and TV Interference DescriptionSwitch Set S1 External DIP Switch SettingsS1 Summary Table S1-1 Master/Slave ClockInternal Jumper Settings S1-4 Loopback Test EnableS1-2 and S1-3 Rate Adaptation S1-5 Data InversionJumper Summary Table LK3 DIP Switch S1-1 EnableLK1 75 Ohm Transmit Shield-to-Ground Connection LK2 75 Ohm Receive Shield-to-Ground ConnectionPower Supply Options LK5 Configuration Auto-SenseLK6 & LK7 75 Ohm Termination Impedance Signal Connection to the Power SourceConnection to the G.703 Network Connection to the Terminal DeviceLED Status Indicators POWER-UPLoopback Test LAL Model 2703-X21 PIN Configurations Patton Model 2703 SpecificationsSafety Warnings and Requirements Factory Parts and Accessories