NTP-015: Circuit Order 363-206-285
Page 3 of 6 Issue 2, February 2000
DDM-2000 OC-3 MULTIPLEXER
DO ITEMS BELOW IN ORDER LISTED. . . . . FOR DETAILS, GO TO
3.
!
WARNING:
Unterminated optical connectors may emit invisible laser
radiation. Eye damage may occur if beam is viewed directly
or with improper optical instruments. Avoid direct exposure
to the beam.
DLP-504At existing RT, install OLIU circuit packs in slots being used for the
new extension, if not already performed.
4.
NOTE:
22G-U OLIUs require a 10 dB LBO. 22G2-U, 22G3-U, and
22G4-U OLIUs require no attenuation when they are looped
back.
DLP-505At existing RT, connect optical loops to the new OLIUs.
5. After new OLIU alarm LEDs go off, remove OLIU optical loops at
both existing and new RTs.
6. Determine the optical loss of the optical facility from office records
or by making the required measurements.
7.
NOTE:
The Network Side/User Side parameters of the
set-fecom: command must be set opposite at each end of
the optical spans.
Use the rtrv-fecom/set-fecom command to verify/set
Network Side/User Side parameters at each end of optical span
being established.
DLP-504
DLP-505
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