Lucent DDM-2000 OC-3 User And Service Manual page 272

NTP-029
: Circuit Order
Page 4 of 22
DO ITEMS BELOW IN ORDER LISTED. . . . . FOR DETAILS, GO TO
9. !
CAUTION:
TIMING slot 2 should always be equipped with a TGS/TG3
circuit pack and be active prior to software download. To
clear a C condition from the SYSCTL FE ID display,
procedures will require removal of the TGS/TG3 circuit pack
from TIMING slot 1 to force the system to run the new
software.
NOTE:
BBF4 TG3 circuit packs cannot be mixed with
BBF2/BBF2B/BBF2C TGS circuit packs in the same
DDM-2000 OC-3 shelf.
Before performing this procedure, ensure that both TGS/TG3
circuit packs are installed in the shelf, then use the
switch-sync:s=circuitpack,pri=manual command to
switch to the protection TGS/TG3 circuit pack in TIMING slot 2, if
not already ACTIVE. Use rtrv-sync: command to verify that
the TGS/TG3 circuit pack in TIMING slot 2 is ACTIVE.
10. At Node 1 and Node 2, use the
switch-line:main:pri=manual command to switch to the
protection line. Use the rtrv-state-eqpt:main-all
command to check switch state (main-2 OLIU active). (See
Figure 1.)
DDM-2000 OC-3 M
Issue 2, February 2000
ULTIPLEXER
363-206-285