Tagsys S.A. LSP3STANDARD User Manual

May 2009

Revision 0.2

55/63

8 Troubleshooting

The following table lists the most common problems and describes their solutions.

Table 5: 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.