USER
MANUAL
MODEL 2703
G.703/E1 Digital Modem
SALES OFFICE(301) 975-1000TECHNICAL SUPPORT(301) 975-1007http://www.patton.com
Part# 07M2703-IDoc# 031041UIRevised 08/16/99
An ISO-9001
Certified Company
Page 1: ...USER MANUAL MODEL 2703 G 703 E1 Digital Modem SALES OFFICE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 http www patton com Part 07M2703 I Doc 031041UI Revised 08 16 99 An ISO 9001 Certified Company...
Page 2: ...are designed to provide reasonable protection from such interference in a commercial installation However there is no guarantee that interfer ence will not occur in a particular installation If the M...
Page 3: ...evice 256 kbps 512 kbps or 1 024 Mbps connect to a 2 048 Mbps G 703 link The Model 2703 supports internal or network receive loop clocking Loopback test is built in and front panel LEDs monitor power...
Page 4: ...and S1 5 together to allow the Model 2703 to adapt to terminal devices that run at data rates less than 2 048 Mbps The network rate remains 2 048 Mbps regardless of the terminal rate adaptation setti...
Page 5: ...ER SETTINGS The Model 2703 s seven jumpers are located on the Network Interface Module PC board inside the unit To access the jumpers fol low these instructions 1 Insert a flat head screw driver into...
Page 6: ...Impedance On Off On 75 Ohm Opt optional setting all others are required for proper operation Jumper LK2 75 Ohm Receive Shield to Ground Connection This setting determines whether the shield of the 75...
Page 7: ...ed service personnel Contact Patton Electronics Technical support at http www patton com or sup port patton com 301 975 1007 for more information 4 0 INSTALLATION Once the Model 2703 is properly confi...
Page 8: ...option uses a 3 pin terminal strip interface Note Please refer to the Model 2703 Service Manual for DC power supply wiring instructions 13 5 0 OPERATION Once the Model 2703 is properly configured and...
Page 9: ...s operating properly and can be used for a test If a fault is indicated call a tech nician or replace the unit C Perform a BER bit error rate test on each unit If the BER test equipment indicates no f...
Page 10: ...r cord which must be specified in the model number when ordering The DC version is supplied without a power cord All versions of the Model 2703 are supplied without a terminal DTE interface cable This...
Page 11: ...permission to attach Any other usage will invalidate the approval of the Interface Module Interconnection of the Interface Module the port marked Network directly or by way of any other apparatus wit...
