ISDN-PLK (ISDN-PRI Signaling Link Port)
Issue 4 May 2002
10-947555-233-123
Signaling Port Packet Bus Loopback Test (#939)
This test verifies the connectivity of an ISDN-PRI Signaling Port (D-channel)
across the Packet Bus, also known as the LAN bus. It will execute only if the port
is busied out. Failure of this test indicates a fault associated with the port
hardware on the circuit pack.
Figure 10-38. Signaling Port Packet Bus (LAN) Loopback
Table 10-347. TEST #939 Signaling Port Packet Bus Loopback
Error
Code
Te s t
Result Description/Recommendation
1015 ABORT The port is not in the out-of-service state. Use the busyout
port PCSSpp command to place it in the out-of-service state
and repeat this test
!
CAUTION:
The busyout will prevent new call originations on all
B-channels in the signaling group until the port is
released.
1139 ABORT The Packet Bus in this port network is out of service.
1. Follow repair procedures for the Packet Bus
2. Enter test port PCSSpp long and check the results of
this test (939).
1141 ABORT The Packet Control circuit pack is out of service.
1. Follow the repair procedures for PKT-CTRL.
2. Enter test port PCSSpp long and check the results of
this test (939).
Continued on next page
Packet Bus
To far end
switch hardware
Processor
(TN786)
Packet
Control
Circuit
Pack
(TN778)
UDS1
Interface
Circuit
Pack
(TN464*)
*TN464 C or later
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