Canoga-perkins 9145 Network Interface Device User Manual download pdf (Page 75)

9145 Network Interface Device 4-1

Chapter 4

Maintenance and Troubleshooting

General Maintenance

Well-maintained components and clearly identified cables help assure optimum system

operation. Damaged fiber cables and dirty connectors are a common source of signal loss

or attenuation. Single mode and multimode fiber optics are especially sensitive to

contamination. Inspect, clean, and test all components to maintain optimum performance.

Caution: To avoid damage and signal loss, do not over-tighten or force-fit optical

connectors.

• To clean the ferrules and end-face surfaces of male fiber couplings, use a lint-free pad

saturated with isopropyl alcohol.

• To clean the female fiber connectors, use canned air.

• To prevent damage and contamination, place protective dust caps on all unused optical

connectors.

Plan to use a cable management system to ensure trouble-free operation and maintenance

tasks.

• Position and secure the fiber optic cables to prevent excessive bends and damage.

Follow the guidelines for the bend radius for specific fiber cables.

Note: If no minimum bend radius is specified, the typical long-term, low-stress radius is

greater than 15 times the cable diameter (based on Federal Standard FS-

1037C).

• Always connect the fiber optic cables in the standard Tx to Rx and Rx to Tx scheme.

• Label each cable near each end with the signal direction, source, and destination to

minimize connection errors.

Check Optical Power Levels

To ensure the proper performance levels, measure the fiber link loss, or link attenuation, for

all fiber links. Each 9145 is shipped with a document that lists the output power for each

laser transmitter. To determine link attenuation, use either the 9145 Tx source or a hand-

held 1310/1550 nm laser source, a fiber optic test jumper cable (with known loss), and an

optical power meter.

Note: For accurate results, warm up each unit for at least 30 minutes before checking

power levels.

The transmission laser in the 9145 turns on automatically when it is powered up.

1 2 ... 70 71 72 73 74 75 76 77 78 79 80 ... 101 102

No comments

Canoga-perkins 9145 Network Interface Device User Manual Page 75