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Stand-alone installation testing
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8
Reconnect the optical fiber to the OLIU.
Result:
FAULT LED on the OLIU should extinguish.
........................................................................................................................................................................................................................
9
Repeat
active.
........................................................................................................................................................................................................................
10
Check off the appropriate box in
E
O
N D
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Function units, switching test
Use this procedure to test any of the Function Slots occupied by a LNW7, LNW8,
LNW112, LNW16, LNW18, LNW19B, LNW20, LNW111 or LNW39 circuit pack.
This test is performed when the LNW7, LNW8, LNW112, LNW16, LNW18, LNW19B,
LNW20, LNW111 or LNW39 circuit packs are in a 1+1 protection arrangement.
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1
Locate the first function group equipped with LNW7, LNW8, LNW112, LNW16,
LNW18, LNW19B, LNW20, LNW111, LNW84, LNW140 or LNW39/LNW391 circuit
packs.
........................................................................................................................................................................................................................
2
Unseat the active circuit pack. The active circuit pack has an ACTIVE LED lit.
Result:
The MN alarm and the NE LED on the SYSCTL should be lit.
........................................................................................................................................................................................................................
3
Unseat the second circuit pack in the pair.
Result:
........................................................................................................................................................................................................................
4
Reseat the first circuit pack that was removed.
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6 - 5 0
After a short time, the MN and NE alarm LEDs on the SYSCTL and the
Step 6
through
Step 8
S
F
T E P S
The ACTIVE LED on the other circuit pack in the function group lights.
On the SYSCTL, the MN alarm extinguishes and the CR alarm lights.
Automatic protection switching and alarm test
to verify a switch back to the OLIU that was originally
"Installation checklist" (p.
II-5).
365-372-603R2.0
Issue 1 January 2009
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