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LNL-1300 Single Reader Interface Module
63
Installation
To install the SRI, perform the installation procedures described in the following sections, in the order in
which they are presented.
1.
Wire the supervised alarm inputs for door position and REX exit push button monitoring.
2.
Wire the upstream host communication.
3.
Wire the relay outputs.
4.
Wire the downstream interface for the keypad or card reader (for older models of the SRI, a TTL
interface is used).
5.
Wire the power input.
63.1
Wiring
63.1.1
Supervised Alarm Inputs
The Single Reader Interface Module contains two (2) supervised alarm inputs that can be used for door
position and REX exit push button monitoring. These alarm inputs are connected using the I1 and I2 inputs.
Wire the I1 and I2 inputs using twisted pair cable, 30 ohms maximum. Terminate each of these inputs with
two (2) 1000-ohm resistors (1% tolerance – 0.25 watt).
GROUND
BUZZER
READER
LED
DATA1/CLOCK/TR+
DATA0/DATA/TR-
READER POWER
DATA1/CLOCK/TR+
SIO COMM.
RS-485
DATA0/DATA/TR-
INTERFACE
GROUND
TAMPER, NC
338 —
revision 7
Communications
GND
BZR
LED
DAT/D1
DAT/D0
VO
TR+
TR-
GND
J4
1
2 3 4
5
6
7
8
J3
NORMALLY CLOSED
NC
COMMON
C
NO
NORMALLY OPEN
NO
NORMALLY OPEN
NC
NORMALLY CLOSED
C
COMMON
+12 VOLT DC
VIN
GND
12 VDC RETURN
I2
EXIT REQUEST
1K, 1%
NO
NORMALLY OPEN
1K, 1%
I2
I1
DOOR CONTACT
1K, 1%
NC
NORMALLY CLOSED
1K, 1%
I1
STRIKE RELAY
AUX RELAY
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