DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1179PE-BCHL (PRI Endpoint Port)
9
Figure 9-74. PRI Endpoint Port Interactions
PRI Endpoint Port Service States
The status pri-endpoint extension c ommand displays the fo llowing possible
service states for PRI endpoint por ts. The table that follows gives recommend ed
procedures for each s tate. The figure following that shows typical progressions
from one service state to another. Refer also to

Troubleshooting Wideband

Problems

in Chapter 5, ‘‘Alarms, Errors, and Troubleshooting’’ for a layered
approach to add ressing PRI endpoint problems.
■In-Service (INS)
The B-channel is in its normal operating state.
■Out-of-Service/Far-End (OOS/FE)
A B-Channel is initialized to this state when first ad ministered. The switch
then sends messages to the far-end t erminal adapter to negotiate the
B-channel into service. If the far-end terminal adapter does not respon d to
the messages within a certain time p eriod, the port remains out of servic e,
and maintenance will perio dically resend the messages. The port is
unusable for incoming and outgoing calls, alt hough other ports in the PRI
endpoint can still be used.
■Out-of-Service/Near-End (OOS/NE)
MSSNET
Circuit
Pack
(UN332)
Packet
Bus
TDM
Bus
PKTINT
Circuit
Pack
(TN1655)
Processor
(UN331)
UDS1
Interface
Circuit
Pack
(TN464C)
Terminal
Adapter
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Signaling
(Port 24)
ISDN-LNK
PE-BCHL
PE-BCHL
Data
Data
(Port 1)
(Port 23)