NTP-010
: System Turnup 363-206-305
Page 4 of 8 Issue 3, June 2000
DDM-2000 F
IBER
R
EACH
W
IDEBAND
S
HELF
DO ITEMS BELOW IN ORDER LISTED. . . . .FOR DETAILS, GO TO
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.
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. Also check Mode Switching (revertive or
nonrevertive) and the external DS1 Line Code/Format
switch settings.
Set timing mode on
TGS/TG3
circuit packs to the timing mode
specified in work order or office records. Use the set-sync:
command to set the OC-3 synchronization source, if required,
(363-206-285,
DDM-2000 OC-3 Multiplexer, TARP Release 13
and Later, User/Service Manual (TOP) — Volume II,
Detailed
Level Procedures: DLP-513
).
9.
NOTE:
This stand-alone ring configuration requires that the
MAIN 1
OLIU
on the OC-3 shelf connect to the
MAIN-2 OLIU
at the
first FiberReach shelf from the OC-3 shelf.
MAIN-1 OLIU
at
the FiberReach shelf (node) connects to the
MAIN-2 OLIU
at
an adjacent FiberReach shelf (node). The
MAIN-1 OLIU
at
the last FiberReach shelf on the OC-1 ring connects to
MAIN
2(P) OLIU
on the host OC-3 shelf. See Figure 1. This
procedure will establish the ring configuration starting from
the OC-3 host node (near-end) to the first FiberReach node,
then continuing to the next node until the final connection is
made from the last FiberReach node back to the host OC-3
node.
NOTE:
All unused ports on the
27-Type OLIU
must be set to
nmon
with the set-state-oc1 command.
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