45xx Modular Disk Subsystem Manual for G-Series Releases

Table Of Contents

Checking Hardware Operation

45xx Modular Disk Subsystem Manual for G-Series Releases—142466

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Troubleshooting Fiber-Optic Cables

When troubleshooting for suspected fiber-optic power loss, first verify that the connector

ends of the fiber-optic cable are not contaminated. The connectors can cause excessive

optical losses if they become contaminated with dust particles, oil from skin, or other

foreign matter. This is why it is important to keep the dust cover on the connector when

the cable is not in use.

Cleaning the Cable Connector

Dust particles can usually be removed from the ends of the fiber-optic cable and the

optical ports of the SAC and BEB by applying a short burst of MICRO DUSTER

pressurized air to those locations. The Tandem part numbers are 59028 and 59029.

If contaminants such as oil from skin are suspected to be on the tips of the fiber-optic

cables or ports, clean them by wiping lightly once or twice using a TEXPAD alcohol-

saturated wiper. The Tandem part number of the TEXPAD is 10312.

If needed, your service provider can use a special optical power meter to measure the

optical power output of any device suspected of failure, such as, a 6760 adapter, SAC,

BEB, or a possibly defective or kinked fiber-optic cable.