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Procedure
Proceed as follows to establish a protected ring configuration:
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1
Connect an optical fiber to the NE-A OUT port of the optical circuit pack to be used in
this test.
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2
Move to NE-B. At the IN port of the respective optical circuit pack measure the
received optical power from the far-end transmitter.
Important!
The optical power meter must be set to the appropriate wavelength
range.
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3
Check that the measured value is within the range shown below (see
“Power input ranges of the optical circuit packs” (p. 10-8)
IF...
THEN...
the measured value is within the
range,
proceed to
the measured value is not within
the range,
choose the appropriate LC attenuator value (see
section
“Orderable attenuators” (p. 10-11)
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4
Replace the 0-dB LC attenuator with the attenuator selected in
. A replacement
procedure is given in appendix A, section
“Replacing LC-type LBOs” (p. A-23)
NOTE:
In the case of GE1/SX4 ports, a multi-mode LBO (Lightguide Build-Out) must
be used.
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5
Measure the received optical power again.
Result:
The measured value must lie within the valid range.
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6
Connect an optical fiber to the NE-B IN port of the respective optical port facing the
NE-A port used in this test.
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7
Repeat
to
for all required fiber connections in the ring.
Network establishment and testing
Connecting the fiber cables
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365-374-187
Issue 1, December 2005
Lucent Technologies - Proprietary
See notice on first page
10-7
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N D
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T E P S
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