BEWATOR COTAG 4101-2, Installation Handbook, Page: 142 / 158

4101-2 Controller Installation Handbook
19-10
Solution : check that the potentiometer on the RF Module is in its
factory-set position.
Switches in Loop Coupler
Switches 4 and 5 of SWA in the Loop Coupler may be set incorrectly.
Solution : if using a combined Tx/Rx loop then check switches 4 and
5 of SWA are on. If using separate Tx and Rx loops then check
switches 4 and 5 of SWA are off.
Controller and reader modules
Check that the correct modules are fitted and that the access point
addresses are each connected to the correct reader. Check that the
modules are properly located in their sockets and that all power and
data connections are made to the controller motherboard.
Is there power to the Controller?
The POWER LED should be lit and the STATUS LED should be
flashing slowly.
Power LED not lit
If the POWER LED on the Controller lid is not lit then there is either
no power to the Controller or fuse FS1 has blown. Each Controller
requires 12V DC on CONN4 of the motherboard. Each 4910 Power
Supply Unit can supply no more than 5 amps at 12V.
Solution : check the fuse and check that the power supply is
connected and working.
Power LED is lit but STATUS LED is not
Either the voltage has dropped to such an extent that the processor
has stalled or the Controller is faulty. Check that the voltage is at
least 10V measured between the 0V and +12 pins of the CONN4
connector on the motherboard. If the STATUS LED is flashing quickly
then the processor is running but the supply voltage has dropped
below 10V.
Solution : make sure the power supply is not overloaded.
Is the Controller polling the reader?
Each reader module has two small amber LEDs for each reader -
transmit (the left LED of each pair) and receive. If the transmit LED is
flashing then the Controller is polling the reader.