Reader Installation
30
750.001.003
Revised June 1999
© 1999 AXCESS
TM
Inc.
IMPORTANT!
Do not use the Door Strike and Secondary Output
terminals to drive relay modules directly. Such relays require 100 mA
or more, well in excess of the FTT module’s source power capacity.
The FTT card can burn up. Using sensitive trigger, TTL relays (for
example, Altronix RBSN-TTL or Alarm Saf RBKS-124P) is
recommended.
NOTE: The rolled-up serial cable connected to the RS-232 connector
is for configuration and diagnostics. The FTT Reader cannot be
converted to a Serial Reader.
NC - Normally Closed
NO - Normally Open
Power Supply
for Device
G
Device can be wired to either:
Trig -
Trig +
Pos +
Neg -
C
NC
NO
C
NC
NO
NC - Normally Closed
NO - Normally Open
Device
Device can be wired to either:
+V
Door Strike
Secondary
Output
24V
Ground
F
T
T t
e
rm
in
a
l b
loc
k
TTL Relay
Figure 12 Wiring details for driving a device
Step 1:
Run 22 AWG wire (max length two feet) from the terminal
labeled
GND
on the FTT terminal block through the
conduit chase to the relay terminal labeled
Neg -
.
Step 2:
Run 22 AWG wire (max length four feet) from the terminal
labeled either
Door Strike
or
Secondary Output
on the
FTT terminal block through the conduit chase to the relay
terminal labeled
Trig +
.
Step 3:
Run 22 AWG wire (max length four feet) from terminal
labeled
24 V
on the FTT terminal block through the conduit
chase to the relay terminal labeled
Pos +.
Step 4:
Connect the Common (
C
) terminal on the relay to
+V
on
the device’s power supply with manufacturer
recommended wire.
Step 5:
Connect Ground from the device’s power supply to the
device using manufacturer recommended wire.