NTP-009: Operation 365-575-102
Page 6 of 16 Issue 8.0, July 2002
17. Instruct the installation/maintenance personnel, at
node C, to disconnect the West transmit fiber (point
CWT) and also verify that the East receiver (point AER)
has an incoming OC-48 LOS alarm and its FAULT LED
is flashing. Refer to the example provided in Figure 5.
18. Instruct the installation/maintenance personnel, at
node A, to disconnect the East receive fiber (point
AER).
19. Instruct the installation/maintenance personnel, at
node 2, to disconnect the West transmit fiber (point
2WT) and also verify that the East receiver (point 3ER)
has an incoming OC-48 LOS alarm and its FAULT LED
is flashing. Refer to the example in Figure 5.
20. Instruct the installation maintenance personnel, at node
3, to disconnect the East receive fiber (point 3ER).
21. Instruct the installation maintenance personnel, at node
3, to disconnect the East transmit fiber (point 3ET) and
also verify that the West receiver (point 2WR) has an
incoming OC-48 LOS alarm and its FAULT LED is
flashing. Refer to the example in Figure 5.
22. Instruct the installation maintenance personnel, at node
2, to disconnect the West receive fiber (point 2WR).
Prepare to Connect New Fibers
23. Instruct the installation/maintenance personnel, at
node 2, to connect the new West transmit fiber (point
2WT). Refer to the example in Figure 6.
24. Instruct the installation/maintenance personnel, at
node A, to measure the received optical power level at
the new East receive fiber (point AER). Select and
install the correct optical LBO - then connect the fiber to
the receiver. Verify that the incoming OC-48 alarm and
flashing FAULT LED clear after about 1 minute.
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