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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-1460UDS1-BD (UDS1 Interface Circuit Pack)
10
FAIL UDS1 Interface circuit pack detects a Loss of Signal alarm. The physical
link is broken or the remote DS1 endpoint is down. All trunks or ports of this
UDS1 interface circuit pack are out-of-service. If the UDS1 Interface circuit
pack is designated as the supplier of the system synchronization source,
then the system synchronization maintenance will adopt a source
elsewhere. Refer to the SYNC section in this chapter for details. If the
UDS1 connects to a T1 network facility:
1. Check the physical connection of the UDS1 Interface circuit pack and
the cable. If a 120A1 CSU Module is physically connected to a
TN464F board on the back of the port carrier, check the physical
connection of the CSU Module and make sure the Network Interface
cable is plugged into the CSU Module’s NETWORK jack.
2. If the UDS1 Interface circuit pack connects to a T1 facility, call the
vendor of the T1 carrier to diagnose the remote DS1 endpoint.
If the UDS1 Interface circuit pack connects directly to a switch, call the
system technician of the remote switch to diagnose the DS1 endpoint. If
the UDS1 connects to a line-side terminating device such as a PRI terminal
adapter:
1. Check the physical connection of the UDS1 Interface circuit pack to
the terminating device. Check premise distribution system (or
intra-premise wiring) for physical connection failures. If a 120A1 CSU
Module is physically connected to a TN464F board on the back of the
port carrier, check the physical connection of the CSU Module and
make sure the Network Interface cable is plugged into the CSU
Module’s NETWORK jack.
2. Contact the vendor of the line-side terminating device to diagnose the
equipment.
1300 The CSU Module is missing. The
Near-End CSU Type
field on the
add ds1
form has been administered as
integrated
but the 120A1 CSU Module is
not physically connected to the TN464F board on the back of the port
carrier.
1. If using the 120A1 CSU Module, plug the CSU Module into the TN464F
circuit pack’s connector on the I/O connector panel on back of the
carrier. Otherwise, change the
Near-End CSU Type
field using the
change ds1
form to
other
.
2. Run the test again.
Table 10-494. TEST #138 Loss of Signal Alarm Inquiry Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page