Installation Manual

Troubleshooting the System

94 750.001.003

Revised June 1999

Inc.

Step 3: Ensure that the 10-wire header is seated properly in the

ATU. See page 74 for a discussion of seating the header.

Step 4: Ensure that RG-58/U with 100% foil shield coverage is

used.

Step 5: Ensure that the cable lengths are within specifications: no

more than 80 feet between the Reader and the ATU and

no more than 20 feet between the ATU and the antennas.

Step 6: Ensure that the connectors are well fastened and in good

order.

Step 7: Ensure that TX is connected to TX and RX is connected to

RX on the Reader, ATU and antennas.

Step 8: Check the continuity of the cables. See page 87 for details

on checking continuity.

Problem: The ATU meter oscillates but will not adjust

Step 1: Ensure that the 10-wire header is seated properly in the

Toggle Switch ATU. See page 74 for a discussion of

seating the header.

Road Loop Antenna

Problem: The Road Loop Antenna has no range

Step 1: Ensure that RG-58/U with 100% foil shield coverage is

used.

Step 2: Ensure that the cable lengths are within specifications: no

more than 80 feet between the Reader and the ATU and

no more than 20 feet between the ATU and the antennas.

Step 3: Ensure that the connectors are well fastened and in good

order.

Step 4: Ensure that TX is connected to TX and RX is connected to

RX on the Reader, ATU and antennas.

Step 5: Check the continuity of the cables. See page 87 for details

on checking continuity.

Step 6: Check the Road Loop Antenna and the banana connector

for continuity.

Step 7: Ensure that there is not a splice in the Road Loop

Antenna.

Step 8: Ensure that the ATU is tuned properly. See page 73 for

information.

Step 9: Ensure the 10-wire header is seated properly in the Toggle

Switch ATU. See page 74 for a discussion of seating the

header.