TransCore AI142205618 Manuel D’Utilisation
6-3
Chapter 6
Troubleshooting
This section lists routine maintenance procedures to keep the AI1422
Half-Frame Reader System operating correctly and diagnostic
procedures for troubleshooting an improperly working reader system.
Half-Frame Reader System operating correctly and diagnostic
procedures for troubleshooting an improperly working reader system.
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
•
RF power meter
•
100 MHz oscilloscope
•
Antenna and cable
Troubleshooting
No loop-back mode to restore defaults, such as baud rate, means that troubleshooting
is required.
is required.
Failure Modes
No Communication
—
To determine if there is a problem in the communications
hardware, the following two commands should be repeated together for testing pur-
poses:
poses:
!~~CC
escape to diagnostic mode
!22
display time and date
If functioning properly, the time and date will be displayed after the second command,
which means that the reader is communicating. If the reader is not functioning prop-
erly, then perform the following checks.
which means that the reader is communicating. If the reader is not functioning prop-
erly, then perform the following checks.
•
Does the AI1422 Half-Frame Reader System have adequate power? If not, ensure
reader has 13.5V DC
reader has 13.5V DC
±
1.0V DC.
•
Is the main power switch on? If not, switch it on.