ADTRAN 12804102L1A, Системное руководство

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Section 6 Troubleshooting Guide TRACER 4102/4202 System Manual
60 © 2004 ADTRAN, Inc. 612804202L1-1A
Use the tables in Section 2, Microwave Path Engineering Basics , of this manual to select the
proper free-space attenuation value (in dB) based on the estimated length of the microwave path.
Remember to subtract both antenna gains (local and remote) from the attenuator setting.
12. Initiate a line loopback on the local TRACER 4102/4202 unit and run a test pattern from the
connected T1 equipment. This will verify the connection between the T1 equipment and the local
TRACER 4102/4202 unit.
13. Command a link loopback on the remote TRACER 4102/4202 unit and run a test pattern from the
connected T1 equipment. This will verify the data path across the RF link.
Installing/Configuring T1 Hardware
1. If possible, attach any or all of the intended T1 hardware to the TRACER 4102/4202 units using
the same workbench setup. This step offers the perfect opportunity to configure your T1 hardware
for proper functioning with the TRACER hardware.
2. To significantly reduce the probability of an unsuccessful field installation, resolve any remaining
T1 equipment-to-TRACER 4102/4202 configuration issues before field installation. See pages 57
and 57 for more information on resolving T1 interface alarm conditions.
External pattern generators are required to test data path integrity. A T1 BERT tester is
suggested.