ADTRAN 2 x E1 user manual SectionTROUBLESHOOTING4 Troubleshooting, General

61280004L2-1C

SECTION 4SectionTROUBLESHOOTING4 Troubleshooting

GENERAL

If you experience a problem with the TRACER system, check to ensure that all connectors, coaxial cables, antennas, and E1s are all properly connected; and that the system configuration ensures proper transmit and receive levels for the RF equipment. Then, if the problem persists, follow the actions recommended in this section. For further assistance, call ADTRAN Technical Support at

(011) 256-963-8716.

N O T E

Each TRACER is completely system-tested and all specifications verified prior to shipment. Most problems on a new link tend to have installation-related solutions.

PROBLEM DESCRIPTIONS AND RECOMMENDED ACTIONS

Each problem described below is followed by a list of Possible Causes, each of which is followed by a number (or numbers) corresponding to a Recommended Action (or Actions).

I M P O R T A N T

If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical Support at (011) 256-963-8716.

Troubleshooting Using the Front Panel Indicators
Link Down Light is Lit
This alarm will activate when the RF link is not operational.
	Recommended Action
Possible Cause	(see list below)
• The RF link is down	1-10
• The RX power is below the specified receiver sensitivity	1-4,7-10
• The far-end transmitter is off, or is transmitting low power	1-4,7-10
• The RF path is not aligned	1,2,10
• Water is in the antenna feedhorn or connectors	1,4
• Both units are set to the same frequency plan	5,10
• Both units are not set to the same P/N code	6
• The 1 amp 250 V fuse in the BBP is blown	8
• The connection between the BBP and the RFC is faulty	1,7-10
• The connection between the RFC and the antenna is faulty	1,7-10
• The BBP or RFC is faulty	10

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