Alcatel-Lucent 1643 AMS - Page 223

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3
Check that the measured value is within the range shown below (see section “Optical
input power ranges” (p. 8-3)).
IF... THEN...
the measured value is within the
range,
END OF STEPS
the measured value is not within
the range,
choose an appropriate attenuator.
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4
Replace the 0-dB attenuator by the chosen one.
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5
Measure the received optical power again. To be able to do that a coupler and an extra
fiber jumper could be required.
Result: The measured value must lie within the valid range.
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6
Connect the fiber to this IN port.
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7
Repeat Step 1 to Step 6 for all required fiber connections.
Optical input power ranges
The following table provides the allowed input power ranges.
Interface Wavelength [nm] Allowed range [dBm]
S1.1 1310 –28 ... –8
S1.1 (18 dB) 1310 –34 ... –8
S4.1 1310 –28 ... –8
L1.1 1310 –34 ... –10
L1.2 1550 –34 ... –8
L4.2 1550 –28 ... –8
Link testing Connecting the fiber cables
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365-312-802R7.2
Issue 4, June 2007
Alcatel-Lucent - Proprietary
See notice on first page
8-3
E ND OF STEPS
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