Chapter 7 Troubleshooting and Maintenance
This section lists routine diagnostic procedures for troubleshooting an improperly working reader system
and maintenance procedures to keep the AI1422E Reader System operating correctly.
Required Tools and Equipment
The following tools and equipment are required:
•
50-ohm, 5-watt (W) load (N-type connector)
•
Personal computer (PC) with terminal emulator software
•
Appropriate power source for your reader
•
Digital multimeter
•
Loopback DB09 Connector
•
Antenna and cable
•
Slot head screwdriver
Troubleshooting
Loopback Mode
It is possible to reset the AI1422E Reader to default by looping back the TX from the RS232 into the RX
via a short wire. Installing a loopback will cause the reader to reset its settings to factory default, which is
extremely useful during troubleshooting. The procedure for resetting the reader is below.
1. Power down the AI1422E reader by toggling the main power switch to the
OFF
position.
2. Slide the Interface Selection switch on the front panel of the reader to
RS232
.
3. Install a loopback connector to the MAIN RS232 port.
4. Apply power to the AI1422E reader by toggling the main power switch to the
ON
position.
5. Wait 30 seconds for the reader to complete the factory reset.
6. Power down the AI1422E reader by toggling the main power switch to the
OFF
position.
7. The reader should now be configured for factory default settings.
AI1422E Reader User Guide
TransCore Proprietary
7–50