DLP-502: Detailed Level Procedure 363-206-285
Page 1 of 2 Issue 2, February 2000
DDM-2000 OC-3 MULTIPLEXER
Install STS1E Circuit Packs
1.
!
CAUTION:
Take care to avoid damaging the LEDs that protrude through the opening
in the faceplate of the
BBG6 STS1E
.
NOTE:
BBG6 STS1E circuit packs may be installed in FUNCTION UNITS group
slots A, B,orC. Service BBG6 STS1E circuit packs are installed in slots
labeled FUNCTION UNITS ( ) 1. Protection BBG6 STS1E circuit packs
are installed in slots labeled FUNCTION UNITS ( ) 2(P).
Determine which FUNCTION UNITS group slots (A, B,orC)aretobe
equipped with BBG6 STS1E circuit packs.
2. Determine from office records the length of the STS1E cabling between the
DDM-2000 and the STSX cross-connect point.
3. Refer to Table A and Figure 1. Install the STS1E option jumpers per Table A.
4.
NOTE:
The BBG6 STS1E circuit pack provides bidirectional transport of one
EC-1 signal through the DDM-2000 Multiplexer. STS1E high speed
mode interfaces with the DS1 circuit packs in a FUNCTION UNITS group
at the VT-G rate. STS1E low speed mode interfaces with the OLIU circuit
packs at the STS-1 rate.
Set switch S1 to mode of operation required (HIGH-SPEED MODE or
LOW-SPEED MODE).
Table A – STS1E LBO Settings
Cable Length (Ft)
LBO Setting734A Cable 735A Cable
0 to 225 0 to 125 LBO IN
>225 to 450 >125 to 250 LBO OUT
To Next Page
Loading...
Need help?
General
