Specifications

Elastic Networks 3 BitStorm 1900 Maintenance
08-01101-01, Rev. 1.50 BitStorm 1900™ Installation and Maintenance Guide 3-129
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 Access Multi-
plexer 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 BitStorm1900 Access
Multiplexer 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 net-
work 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