Lucent DDM-2000 OC-3 User And Service Manual page 909

DLP-523
: Detailed Level Procedure
Page 27 of 30
BBF6 T1EXT
51. Determine circuit pack option switch settings from office records, work order,
or old circuit pack settings.
52. Set T1EXT option switches per Table N and Figure 8.
53. NOTE:
If a signal has previously been applied to the original T1EXT circuit pack,
the FAULT LED may flash when the new T1EXT is installed until the
signal tests good.
Remove old T1EXT and install replacement T1EXT.
Response:
54. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
Table N – T1 Line Code Settings
Line Code
Format
B8ZS
AMI
Note: Switch 1, section 3 (S1-3), section 4 (S1-4), and section 5 (S1-5) are
unused and must be set to OFF.
Edge
Connector
FAULT LED on the T1EXT flashes for about 40 seconds
and then goes off.
Switch S1 Settings
S1-1 S1-2
(Port 1) (Port 2)
OFF OFF
ON ON
Component Side
Figure 8 – BBF6 T1EXT Option Settings
DDM-2000 OC-3 M
Issue 2, February 2000
S1-3 S1-4
(Unused) (Unused)
OFF OFF
S1
ULTIPLEXER
363-206-285
S1-5
(Unused)
OFF
ON
1 2 3 4 5
OFF