Lucent Technologies WaveStar OLS 40G, Руководство по установке

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Issue 1.0 March 2001
9-39
365-575-389
Installation Manual Local Installation Testing
Final Testing of OTU Circuit Packs
Test Description The purpose of this test will be to determine that the OTU/OTPM receiver is
operational and the transmitter output power is within specification. A SONET/
SDH signal appropriate to the type of pack is required to perform this task. The
OTU/OTPM transmitter will not turn ON unless it is receiving a signal at its input.
NOTE:
If the Quad Optical Translator Unit is used the following should be
considered:
n
Disconnect the fibers to all OTPMs in a QOTU before the QOTU is
engaged or disengaged from the backplane,
n
Disconnect the fibers from an OTPM before inserting or removing it from a
QOTU,
n
Disconnect the fibers from all OTPMs in a shelf before applying or
removing power from the shelf,
n
Transmission hits on other channels being carried on the same optical line
may result if these precautions are not taken.
Test Procedure
Cautions and
Notes
!
CAUTION:
High power optical signal levels may be present during the following testing.
If using an optical power meter that is not rated for +16 dBm, use a 33-dB
attenuator cable between the optical source and the meter.
NOTE:
The following engineering rules must be followed when using the 41S Quad
OT.
n
If the 41S Quad OTU is to be fully populated with 4 port modules (42A/B,
43A/, or 44A/B), no more than one of them can be a B-type module.
n
If the 41S Quad OTU is to have 3 or fewer port modules, they can be any
combination, including up to 3 (three) B type port modules.
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