Lucent DDM-2000 OC-3 User And Service Manual page 201

NTP-022
: System Turnup
Page 1 of 8
Establish End-to-End DDM-2000 OC-3 or OC-12
OC-3 or OC-12 Optical Fiber Spans
Path Switched Ring Network
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:
If the DDM-2000 fails to respond in the indicated manner,
refer to Trouble Clearing: IXL-001.
NOTE:
It is assumed that all DDM-2000s in the system have been
equipped and passed the looped transmission test(s)
[System Turnup: NTP-016].
Determine the optical loss of each optical span from office records
or by making the required measurements.
2.
NOTE:
The Network Side/User Side parameters of the
set-fecom: command must be set opposite at each end of
the optical spans.
System
DDM-2000 OC-3 M
Issue 2, February 2000
ULTIPLEXER
363-206-285