363-206-285 Circuit Order: NTP-015
Issue 2, February 2000 Page 6 of 6
DDM-2000 OC-3 MULTIPLEXER
DO ITEMS BELOW IN ORDER LISTED . . . . .FOR DETAILS, GO TO
14.
NOTE:
If line timing mode is specified or external timing mode is
specified but the timing reference was not available at new
shelf turnup, the TGS/TG3 option switches are probably set
for
free running
. Before the end-to-end system is
established, the specified timing mode must be set on the
TGS/TG3 circuit pack.
NOTE:
If the option switch setting is changed, an update must be
done by momentarily depressing the UPD/INIT buttononthe
SYSCTL after the TGS/TG3 circuit packs are reinstalled.
NOTE:
If external timing is selected and the NE ACTY LED remains
lighted after the TGS/TG3 circuit pack is reinserted, use the
CIT and the rtrv-sync command to check the operational
mode of the system. If the mode is Holdover instead of
External, check that the incoming timing references are
connected.
DLP-513Set timing mode on TGS/TG3 to the timing mode specified in
work order or office records.
DLP-51515. Perform automatic end-to-end OC-3 line test at new or existing RT
for ring configuration with linear extension.
16. Use rtrv-crs-sts1: or rtrv-crs-vt1: commands at
existing RT to see if required cross-connections have been made
to new RT. If required, use ent-crs-( ) commands at existing
RT to make required cross-connections.
DLP-51017. Perform end-to-end DS1 transmission test for added low speed
group, as required.
DLP-51118. Perform end-to-end DS3 transmission test for added low speed
group, as required.
19. The system is ready for service to be established.
DLP-513
DLP-515
DLP-510
DLP-511
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