Lucent Technologies DDM-2000 OC-3, User & Service Manual

Page: 1887 / 2536

NTP-060
: System Turnup 363-206-285
Page 3 of 12 Issue 2, February 2000
DDM-2000 OC-3 M
ULTIPLEXER
DO ITEMS BELOW IN ORDER LISTED. . . . . FOR DETAILS, GO TO
6.
NOTE:
This procedure will establish the OC-3/OC-12 ring
configuration starting from the WaveStar TDM 2.5G host
node (far end) to the first OC-3/OC-12 node (near end), then
continuing to the next OC-3/OC-12 node until the final
connection is made from the last OC-3/OC-12 node back to
the host WaveStar TDM 2.5G node.
NOTE:
The Network Side (NS)/User Side (US) parameters of the
OC-3/OC-12
set-fecom:
command and the WaveStar
TDM 2.5G DCC orientation must be set opposite at each
end of the optical spans. For example, see Figure 2.
Use the
rtrv-fecom/set-fecom
command at the DDM-2000
or the Enable/Disable DCC Terminations, T 305, procedure at
the WaveStar TDM 2.5G to verify/set Network Side/User Side
parameters at each end of all optical spans being established.
7.
NOTE:
If line timing mode is specified or external timing mode is
specified but the timing reference was not available at the
OC-3 shelf turnup, the TGS/TG3 option switches are
probably set for
free running. Before this configuration is
established, the specified timing mode must be set on the
TGS/TG3 circuit packs.
NOTE:
If the option switch setting is changed, an update must be
done by momentarily depressing the UPD/INIT button on the
SYSCTL after the TGS/TG3 circuit packs are reinstalled.