NTP-057: System Turnup 363-206-285
Page 3 of 12 Issue 3, June 2001
DDM-2000 OC-3 MULTIPLEXER
DO ITEMS BELOW IN ORDER LISTED. . . . . FOR DETAILS, GO TO
7. Use the rtrv-oc3/set-oc3 or rtrv-oc12/set-oc12
command at the remote DDM-2000 OC-3 shelf to verify/set
application (dcc) parameter for the OC-3/OC-12 MAIN slots
being used for this OC-3/OC-12 linear extension. For example,
set-oc3:main-1,dcc=identical and
set-oc3:main-2,dcc=identical or
set-oc12:main-1,dcc=identical and
set-oc12:main-2,dcc=identical.
8.
NOTE:
This procedure will establish the OC-3/OC-12 linear
extension starting from the FT-2000 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 FT-2000
node.
NOTE:
The Network Side (NS)/User Side (US) parameters of the
OC-3/OC-12 set-fecom: command and the FT-2000 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 CONFIGURATION-Enter-Assignment-DCC command at
the FT-2000 to verify/set Network Side/User Side parameters at
each end of all optical spans being established.
9.
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.