NTP-018: Circuit Order 363-206-285
Page 1 of 10 Issue 2, February 2000
DDM-2000 OC-3 MULTIPLEXER
Establish OC-3 Optical Span Extension
Between DDM-2000 OC-12 Ring and
DDM-2000 OC-3 Ring
DO ITEMS BELOW IN ORDER LISTED. . . . . FOR DETAILS, GO TO
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:
DDM-2000 circuit packs contain static sensitive components
which can be damaged by electrostatic discharge. A static
ground wrist strap must be worn when handling the circuit
packs. See electrostatic discharge considerations in
Trouble
Clearing: TAD-100
.
NOTE:
This procedure assumes that the DDM-2000 OC-12 ring is in
service and an OC-3 1+1 optical span is being added
between this OC-12 ring and an OC-3 system. See
Figures 1 and 2.
NOTE:
If the DDM-2000 fails to respond in the indicated manner,
refer to Trouble Clearing: IXL-001.
Use rtrv-alm command to verify that no alarms, locks, loops, or
switches are present.
2. Notify maintenance center that alarms will be generated.
TAD-100
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