Paradyne 1900 User Manual

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3. BitStorm 1900 Maintenance 
1900-A2-GN20-00
BitStorm 1900 Installation and Maintenance Guide
3-105
Maintenance Checklists
Voice/Data Connectivity Troubleshooting Checklist
Table 3-1:   Voice/Data Connectivity Maintenance in Facility Room
Problem
Maintenance Check
No voice or data service
•  Verify that the correct Tip/Ring pairs are being tested 
for both voice and data
•  Verify power at all points in the system
•  Check jumper connections at all cross-connects
•  Verify connections and wiring conditions at all points 
Voice but no data service
•  Verify that the correct Tip/Ring pairs are being tested 
for both voice and data
•  Check jumper connections
•  Check LEDs at intermediate hub or InterProxy/router 
connections
•  Check for 10Base-T cable damage
•  Verify that Modem card is present in correct slot and 
fully seated in BitStorm 1900 backplane connection
•  Replace Modem card to check for bad card
•  Verify that the MIU Shelf Processor is in correct slot 
and fully seated in the BitStorm 1900 backplane 
connection
•  Replace Hub card to check for bad card
Data but no voice service
•  Verify that the correct Tip/Ring pairs are being tested 
for both voice and data
•  Check jumper connections at PSTN/PBX cross-
connect
•  Check dialtone at the PSTN/PBX cross-connect to 
verify that there is not an external voice network 
problem 
•  Verify that Filter card is present in correct slot and 
fully seated in the Filter Shelf
•  Replace Filter card to check for bad card