Alcatel-Lucent 1665 Installation Manual page 263

Installation tests
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Note:
on the High-Speed OLIU, make the connections at the LGX equipment in order to
verify correct installation and labeling of the fibers.
The high-speed packs (OC-12, OC-48 or OC-192) should still be looped back on
themselves and the dcc disabled to prevent dcc alarms. The dcc can be verified with
the View > DCC GUI command. If the high speed packs are no longer looped back,
do so at the LGX panel. The dcc should also be disabled at the function unit slot under
test since it will be connected to a test set and will register alarms. The dcc can be
provisioned with the Provision > DCC Terminations GUI command. Change the dcc
on M2 and the FN slots by using the same command and double clicking on the m1
and selecting m2 or selecting the FN a-g slot.
The OC-48 Optical Packs including the High-Speed OLIUs should be attenuated with
15-dB LBOs. If using OC-192 in the high-speed slots, attenuate with 5 dB. LBOs are
installed on the OLIU faceplate IN port.
Steps
Log in to the Alcatel-Lucent 1665 DMX shelf and verify that there are no existing alarms
by viewing the Alarm List.
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1
Starting at Function Slot A, insert the optical packs to be tested in Slot A-1 and A-2. Both
packs must be of the same type, otherwise a circuit pack not allowed alarm will be
displayed.
Note:
a function group are not the same type. See the Alcatel-Lucent 1665 Data Multiplexer
(DMX) Applications and Planning Guide, 365-372-300.
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2
At the LS LGX Bay, measure the TX output level of all Ports on all OC-3, OC-12 and OC-
48 low-speed cards. Ensure the transmit level conforms to
1665 DMX optical
levels at the Alcatel-Lucent 1665 DMX. If levels are not within specification at the
Alcatel-Lucent 1665 DMX, replace the pack with a spare and return the suspect pack back
through the RMA process. If levels meet specifications, check the fiber to the LGX panel
for continuity.
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3
Ensure that the optical packs to be tested have 15-dB attenuators inserted to the IN port of
the port under test. Failing to insert attenuators may overdrive the circuitry and cause
permanent damage to the circuit packs. Start testing in Port 1.
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Alcatel-Lucent 1665 DMX R9.0
365-372-304R9.0 Issue 2
July 2010
When reference is made to optical fiber loopback connections to IN and OUT
If using VLF mains, some applications are allowed where the circuit packs in
specifications". If the levels are not within specification, check the
Additional optical tests (optional)
Chapter 1, "Alcatel-Lucent
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