Lucent Technologies DDM-2000 OC-3, User & Service Manual

Page: 2177 / 2536

363-206-285 Detailed Level Procedure:
DLP-517
Issue 2, February 2000 Page 1 of 2
DDM-2000 OC-3 M
ULTIPLEXER
Install T1EXT Circuit Packs
1.
!
CAUTION:
In addition to primary lightning protection, an external Lightning and
Surge Secondary Protection Assembly (ED-8C783-30 or equivalent) is
required for T1EXT circuits used in outside plant applications.
NOTE:
DS1 line coding may be set using either the option switches OR the
set-t1:
command. It is recommended that a policy be established to
set line coding using either the switches OR the command. If DS1 line
code (lc) parameters are set using the
set-t1:
command, a software
override will be active and the circuit pack switch settings will have no
effect. The software override will remain active until the
set-t1:
command is executed again and the
noOverride
option is selected.
The
rtrv-t1:
command may be used to check line code settings.
Refer to Table A and Figure 1 and set the line code option switches, if required.
Figure 1 – BBF6 T1EXT Option Settings
Table A – T1 Line Code Settings
Line Code
Format
Switch S1 Settings
S1-1
(Port 1) S1-2
(Port 2) S1-3
(Unused)
S1-4
(Unused)
S1-5
(Unused)
B8ZS OFF OFF
OFF OFF OFF
AMI ON ON
Note: Switch 1, section 3 (S1-3), section 4 (S1-4), and section 5 (S1-5) are
unused and must be set to OFF.
Connector
Edge
5
Component Side
S1
OFF
ON
4 3 2 1