363-206-305 Detailed Level Procedure:
DLP-504
Issue 3, June 2000 Page 1 of 4
DDM-2000 F
IBER
R
EACH
W
IDEBAND
S
HELF
Install OLIU Circuit Packs
1.
!
WARNING:
Unterminated optical connectors may emit invisible laser radiation. Avoid
direct exposure to the beam. Do not view beam with optical instruments.
Use of controls or adjustments or performance of procedures other than
those specified herein may result in hazardous radiation exposure.
!
CAUTION:
Before installing
OLIU
s, ensure all optical fiber connectors and couplings
have been properly cleaned
[DLP-527]
. Signal performance may be
degraded if the connectors and couplings are not cleaned properly.
!
CAUTION:
If optical fiber cables are routed beneath the
OLIU
s, be careful not to
pinch or crush the fibers when the
OLIU
s are inserted.
NOTE:
The DDM-2000 FiberReach shelf requires 26-Type OLIUs (OC-1),
28-Type OLIUs (OC-3), or 29-Type OLIUs (OC-12) in the MAIN slots.
Two OLIUs are required.
NOTE:
When installing two 28/29-Type OLIUs a faceplate interconnect cable
assembly, [comcode 847721271] is required.
NOTE:
The DDM-2000 FiberReach shelf requires 22-Type OLIUs in the FN
slots for the STS-3c 0x1 application. Two OLIUs are required.
NOTE:
The red FAULT LED flashes when no signal is present to the OLIUs.
NOTE:
When using the following procedures to install the OLIUs, if the
responses are not correct, check all connections. If connections are
correct, replace the OLIU that has the wrong response.
NOTE:
When a 28/29-Type OLIU is installed, an OLIU connector failed
alarm will occur. Normally, the alarm occurs because the faceplate
connector (ribbon cable) is not yet installed.
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