GE Security 240 Installation Manual page 25

Condition
The reader
sounds a short
triple beep every
30 seconds and
the red LED
flashes quickly
(every 400 ms).
The reader
sounds a short
triple beep every
5 seconds and
the red LED
also flashes
every 5 seconds.
Reader functions
unreliably.
Indicates a tamper violation. Ensure the reader is
properly attached to its backplate. The red LED
will continue to blink for 30 seconds. The reader is
ready for use when the yellow LED is steadily on.
Check that the 4-state supervised switches are
connected with two 1K Ω resistors to the door
contact and the exit request inputs or, if the inputs
are not used, that resistors are installed at the
reader connector:
DI: Pins 2 and 4, 1K Ω
REX: Pins 2 and 6, 2K Ω
A 470 Ω ½-watt pull-up resistor is required
between 12 VDC and Reader Data 1 on the Micro/
5 2RP (only).
Carefully inspect all Micro/5 power and
communication assemblies (110064001) for the
existence of a 1uf, 250V capacitor on the circuit
side (backside) of the board, near connector J6.
The capacitor should be wired to pins 1 and 4 on
J6. Refer to Figure 13, "Power Comm Board with
Capacitor," on page 22
GE Contactless Reader Model 24x/250
Possible Solutions
21