Dual Reader Interface Module LNL-1320 Series 3
Quick Reference
for rev. D and higher (SN > 3,000,000)
For detailed information, refer to the Hardware Installation Guide, DOC-600.
© 2020 Carrier. All Rights Reserved. LenelS2 is a part of Carrier. 1 QR50L-1034E — revision 3.004
The LNL-1320 Board
The LNL-1320 reader interface boards provide a solution to the host system
integrator for interfacing to a TTL (D1/D0, Clock/Data), F/2F, or 2-wire RS-
485 device and door hardware. The LNL-1320 provides a tri-state LED
control and buzzer control. Six (6) Form-C relay outputs may be used for
strike control or alarm signaling. Eight (8) inputs are provided that may be
used for monitoring the door contact, request to exit push button and alarm
contacts. Input circuits can be configured as unsupervised or supervised.
The LNL-1320 communicates to the controller via a 2-wire RS-485.
See the following diagram for component location (some components
shown are not present on the LNL-1320).
Supplying Power to the LNL-1320
The LNL-1320 accepts 12 to 24 VDC for power on TB7 (VIN and GND).
Locate the power source as close to the LNL-1320 as possible. Make power
connection with minimum of 18 AWG wires.
Observe POLARITY on VIN!
The VOUT terminal on TB7 is the same as VIN.
Communication Wiring (SIO Communication Port)
The LNL-1320 communicates to a Lenel intelligent controller (LNL-3300,
for example) via a 2-wire RS-485 interface. The LNL-1320 allows for
multi-drop communication on a bus of up to 4000 feet (1219 m). Use
twisted pair (minimum 24 AWG) with drain wire and shield for
communication. See Specifications section.
Install RS-485 termination jumper, J4, on the interface boards at each end of
the communication line only.
2-Wire RS-485
The LNL-1320 Board Callouts
Callout Description
1 Inputs
2 DC input power
3 Earth ground (connection not required)
4 Eight (8) mounting holes (Ø0.156 [Ø4.0])
5 Output relays
6 DIP switches
7 Reader interface
8 Status LEDs
INPUTS
IN1
IN2
IN3 IN4
TB1
TB2
TB3
IN5
IN6
TB4
IN7 IN8
TB5
TMP
GND
PFL
GND
TR-
NC
NC
GND
TR+
TB6
RS-485
TB7
VIN
GND
VOUT
A
B
1
2
34
5
6 7 8 PFL
R1
R2
TMP
NC NO C NC
RLY 1
CNO
RLY 2
RLY 4 RLY 3
NO CNONCCNC
RLY 6
RLY 5
NO CNONCCNC
TB10
TB11
TB12
READER 2
VO
LED
BZRCLKDATGND
D1
D0
VO
LED
BZRCLKGND
D1
D0
DAT
READER 1
TB8
TB9
12V
PT
J1
K1
K2
K3 K4
K5
K6
J4
1
4
3
2
^
|
ON
1
4
3
2
5
8
7
6
S1S2
.25 [6.35]5.50 [139.70]
6.00 [152.40]
2.00 [50.80]3.00 [76.20]
2.00 [50.80]
8.00 [203.20]
.50 [12.70]
4
5
6
7
1
3
2
8
Communication Wiring (SIO Communication Port) Callouts
Callout Description
1 To all other devices on the bus
2 To all other devices on the bus
ONLY 2-WIRE RS-485 IS SUPPORTED
VIN
GND
+
-
12 to 24 VDC
TB7
VOUT
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