363-206-305 Detailed Level Procedure:
DLP-507
Issue 3, June 2000 Page 1 of 2
DDM-2000 F
IBER
R
EACH
W
IDEBAND
S
HELF
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.
Take care to avoid damaging the LEDs that protrude through the opening in
the faceplate of the
T1EXT
circuit pack.
2.
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 toTable A and Figure 1 and set the line code option switches, if required.
Note:
Switch 1, section 3 (
S1-3
), section 4 (
S1-4
), section 5 (
S1-5
) must be set to
OFF
.
Figure 1. T1EXT Option Settings
Table A – T1EXT Line Code Settings (Note)
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
Connector
Edge
5
Component Side
S1
OFF
ON
4321
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