Cabletron Systems user manual Testing the FOT-F3 Fiber Optic Transceiver

TESTING AND TROUBLESHOOTING

8.Take note of the reading on the optical power meter. This isyour test level.

9.Subtract the reference level found in step 4 from the test level to find your dB loss for the fiber optic link segment, i.e., dB loss = Test Level - Reference Level.

10.Verify that the reading on the receive unit matches the specifications listed in the Fiber Optic Interface section of Chapter 2.

11.Repeat steps 6-10 for the other strand in the link segment.

If the fiber optic link segment does not meet the specifications, try cleaning the connection at each end of the cable with a soft, clean, lint-free cloth with alcohol, then repeat the test.

4.1.2 Testing the FOT-F3 Fiber Optic Transceiver

1.Using an AUI cable (2, Fig. 4-1), connect a LAN-MD

(1)to the FOT-F3 (3).

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