365-575-102 Circuit Order: NTP-009
Issue 8.0, July 2002 Page 3 of 8
Figure 1 – Identify the East Node and the West Node
5. Determine from the Ring Map Report which
node represents the West Node and which node
represents the East Node for this procedure.
The topmost entry in the report is the Node To
Be Deleted. The East Node is second on the list
and the West Node is last on the list. (The nodes
are listed in a West-to-East sequence.)
—
6.
!
CAUTION:
The line forced switches will preempt extra traffic, if any, on the
protection tributaries.
NOTE:
Refer to Figure 2. The service tributaries connected to the Node To Be
Deleted will now be looped back in the opposite direction with OC-48
line forced switches at the West Node and at the East Node.
NOTE:
The next two steps will cause the ABN and NE ACTY LEDs to light, but
there will be no alarm even though the Node To Be Deleted is being
disconnected from the rest of the ring.
DOITEMSBELOWINORDERLISTED....... FORDETAILS,GOTO
Line
1W
WEST
NODE
Line
1E
EAST
NODE
Other
Node(s)
Other
Node(s)
Line
1W
Line
1W
Line
1E
Line
1E
Line
1E
Line
1E
Line
1W
Line
1W
tpa 832680/01
NODE
TO BE
DELETED