Oc-48 (Low-Speed) Testing; C Installing Fiber Connectors And Lbos - Alcatel-Lucent 1665 Installation Manual

Installation tests

OC-48 (low-speed) testing

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OC-48 low-speed testing procedure
Perform the following steps for all 1665 DMX shelf Function Unit or Growth slots
containing OC-48 (LNW31, LNW425, LNW427, LNW447, LNW449, LNW453,
LNW455, LNW459) OLIU.
Important!
OUT on the OLIU, make the connections at the LGX equipment in order to verify
correct installation and labeling of the fibers.
LBOs are installed on the OLIU faceplate IN port.
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Identify the function groups that contain an OC-48 OLIU circuit pack and fully insert the
1
OLIU into the shelf.
Requirement:
OLIU.
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Insert a 15-dB LC-type LBO into the IN connector of the OC-48 OLIU. Refer to
2
C, "Installing fiber connectors and
Connect the fibers labeled IN and OUT from the LGX to the OLIU (Port 1).
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Connect the IN connector to the OUT connector (at the LGX) of the OC-48 OLIU, using
3
an optical fiber jumper cable. Refer to
cleaning instructions.
Requirement: The FAULT LED on the OC-48 OLIU will begin flashing and the MN
and NE LEDs should be lit on the SYSCTL circuit pack.
After approximately 20 seconds the flashing FAULT LED should extinguish on the OC-48
OLIU and the FAULT, MJ and NE LEDs should be lit on the SYSCTL circuit pack.
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4 - 5 2
CAUTION
Laser Safety
When connecting fiber loops between the IN and OUT ports on optical circuit
packs, always connect to the IN port first and then the OUT port. This will
prevent any optical radiation from being present at the fiber end.
When reference is made to optical fiber loopback connections to IN and
After a few moments, the ACTIVE LED should be lit on the OC-48
LBOs".
Appendix B, "Fiber cleaning"
OC-48 (low-speed) testing
Appendix
for proper fiber
365-372-304R7.1
Issue 1, November 2007