Lucent Technologies DEFINITY Enterprise Communications Server Release 6 Instructions Manual

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-21 Fiber Fault Isolation Procedure 
5
distances up to 4900 feet (1493 m) and 9823B is used for distances 
up to 25,000 feet (7620 m)).
If No
Ê
Is a DS1 CONV administered on the fiber-link? If no, follow normal 
escalation procedures.
If Yes
Ê
Is there an SNI-BD 513 alarmed error (display errors for category pnc)? 
If yes, replace cabling between...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-22 Fiber Fault Isolation Procedure 
5
The tests should fail.
If any test passes, the facility is looped back, and the loopback should be 
removed. If the DS1C Complex has only one DS1 facility, this test cannot 
be executed at the far-end circuit pack (farthest from the SPE).
Ê
Did test 788 pass and test 789 fail? If yes, replace the DS1C and...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-23 Fiber Fault Isolation Procedure 
5
A short optical fiber jumper with connectors is required for this procedure. If the 
link uses metallic cable, the metallic connector must be removed from the back 
of the carrier, and a lightwave transceiver connected in its place.
1. Note the condition of the yellow LED on the circuit pack.
2. Busyout the...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-24 Fiber Fault Isolation Procedure 
5
is helpful for isolating problems between a circuit pack and the lightwave 
transceiver. The loopback shown in this diagram shows only part what test 242 
does. If no lightwave transceiver is connected to the Expansion Interface circuit 
pack, an on-board loopback is performed on the Expansion Interface...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-25 Fiber Fault Isolation Procedure 
5
Table 5-2 shows the pin assignments for the cable used to connect the TN574 
DS1 CONV circuit pack to DS1 facilities.
Table 5-2. DS1 Interface Cable Connectors
Lead Desig.50-Pin 
Connector 
Pin15-Pin 
Connector 
Color Pin Color
Plug 04
Facility D Line In LID 38 W-BL 11 W-BL
Facility D Line In LID* 13 BL-W 03...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-26 Multimedia Call Handling (MMCH) 
5
Multimedia Call Handling (MMCH)
Enhancements
Expansion Services Module
The Expansion Services Module (ESM) provides T.120 data sharing capability on 
a MMCH multipoint H.320 video conference. Each conference participant must 
have endpoints administered and a personal computer with the H.320 video...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-27 Multimedia Call Handling (MMCH) 
5
network to test the connectivity and routing of network calls from the endpoint. 
This eliminates problems such as disconnected audio or video cables and 
network troubles.
64 Kbps Calls Terminate but Far End Receives
56 Kbps Indication
Description
Some 2x64 Kbps conferences on the DEFINITY MMCH do not...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-28 Multimedia Call Handling (MMCH) 
5
2.Another indication of the audio modes is in the “Incoming Mode 
Commands from Endpoint and Outgoing Commands from MMI” on page 
3 of the Status Conference x Endpoint y form. Check the Audio fields 
under the Mode Commands/Communication Modes section of the form.
Some Parties Cannot Be Heard by Others...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-29 Multimedia Call Handling (MMCH) 
5
“y” or “c” suggests that the endpoint has video. An “e” means ept has not 
declared any video capability in cap set, “n” is audio only, and “blank” means 
audio add-on. 
Also check page 1 of the Status Conference x Endpoint y Vs form for indication of 
the video state for the endpoint values.
Calls Terminate...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-30 Multimedia Call Handling (MMCH) 
5
video source status, and sometimes disconnecting as described above. 
Disabling the EI switching is in the customer’s best interest to prevent the 
disruption of the Px64 data stream. The customer will get the same level of alarm 
indications and maintenance on the EI links, regardless of the status of...