User Manual

December 2009 Revision 2.1 59/68
8 Troubleshooting
The following table lists the most common problems and describes their solutions.
Table 6: Troubleshooting Table
Fault Possible Causes Solution
8.1 Sources of Interference
The following devices may cause interference with EAS systems if they are close to the pedestals:
 TAGSYS RFID tag readers and programming devices
 computer monitors or screens (cathode ray tubes)
 radio transmitters
 short-wave radios
 high power music systems with D-class amplifiers
 some industrial vacuum cleaners
 high-frequency fluorescent lights (if very close to pedestals)
 neon or halogen lights such as advertising signs
 equipment using switch mode power supplies
Differential or micro circuit
breakers
Check the differential and
micro circuit breaker
status
System fuse Replace fuse.
No power
Cabling fault.
Power cable fault
Check cabling and
connections.
Replace any suspected
faulty cables.
Alarms missed (TAGSYS
RFID tags with theft bit ON
not triggering alarms).
Tuning fault. Check antenna tuning.
Tuning fault. Check antenna tuning.
False alarms (TAGSYS
RFID tags with theft bit
OFF trigger alarms).
Nearby devices are
interfering with the
pedestals. (Refer also to
section 8.1)
Switch off all or some of
the suspicious nearby
devices and check if the
EAS detection
performance changes. (If it
does, check for a power
problem with the pedestal.)
CAUTION: These distances are subject to site variables. Distance may
be smaller under some conditions. Metal frames on furniture and fixture
items may interfere with the EAS system if they are too close. This is
because energy from the antenna can couple into the metallic frame and
be transmitted to TAGSYS RFID tags and antennas several meters away.