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OC-48 (low-speed) testing

OC-48 low-speed testing procedure

Perform the following steps for all Alcatel-Lucent 1665 DMX shelf Function unit or

Growth slots containing OC-48 (LNW31, LNW425, LNW427, LNW447, LNW449,

LNW453, LNW455, LNW459) OLIU.

Note:

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.

Identify the function groups that contain an OC-48 OLIU circuit pack and fully insert the

OLIU into the shelf.

Requirement:

OLIU.

Insert a 15-dB LC-type LBO into the IN connector of the OC-48 OLIU. Refer to

C, "Installing fiber connectors and

Connect the fibers labeled IN and OUT from the LGX to the OLIU (Port 1).

Connect the IN connector to the OUT connector (at the LGX) of the OC-48 OLIU, using

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.

365-372-304R7.1

Issue 2 March 2008

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 OUT

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

4 - 5 3

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Oc-48 (Low-Speed) Testing - Alcatel-Lucent 1665 Installation Manual