734 Installation and Programming Guide | Digital Monitoring Products
7
7b
Connect an OSDP Card Reader
The 734 provides 12/24 VDC to the reader on the RED terminal connection and two-way data transmission on
the GRN and WHT connection. Only one OSDP reader can be connected to a module.
Use 24 AWG or larger two conductor RS-485 cable to connect a reader to module terminals. For data
transmission, connect the A (485 –) wire to the GRN terminal and the B (485 +) wire to the WHT terminal. For
reader power, connect the red (DC +) wire to the RED terminal and the black (DC –) wire to the BLK terminal.
Refer to Figure 10.
Wire colors may be different depending on the reader. Refer to literature provided with the reader for wire
coding, distance, and other specifications.
Note:
OSDP card readers require 734 Access Control modules with PCB Rev 6 and higher.
LC (Remote LED Control)
Remote LED Control provides an unsupervised switched ground for a visual indicator that turns on when the
relay activates. Connect the wire from the LC Terminal to an LED. The LED turns on for the duration the door
strike relay is on. HID readers optionally provide a connection for LED reader control.
LC WIRE COLOR
LED COLOR
Orange
Green
Brown
Red
RA (Remote Annunciation)
Remote Annunciation provides an unsupervised switched ground for a remote annunciator that turns on when
the Zone 2 Bypass timer expires. Connect the wire from the RA Terminal to a remote annunciator. The remote
annunciator silences when the RA restores. The remote annunciator (RA) switched ground operates even if
the speaker is programmed not to operate.
AS (Armed Status)
Armed Status provides an unsupervised switched ground for a visual or audible armed status indicator that
turns on when the burglary areas are armed, such as SYSTEM ON or ALL SYSTEM ON. Connect a wire from
the AS Terminal to an armed status indicator.
Caution:
Status indicator outputs support a maximum of 100 mA per terminal. Exceeding the maximum
rating on LC, RA, or AS terminals can damage equipment.
Red (12/24VDC)
Black (GND)
Orange or Brown (LED)
Yellow (Buzzer)
Green (Data 0)
Typical
Wiegand
Card Reader
White (Data 1)
1
2
3
4
5
6
7
8
10
11
12
13
14
9
LC
AS
RED WHT GRN BLK
Z1
Z2
Z3
Z4+ Z4–
RA
GND
GND
ON
1
2
3
4
Figure 9: Wiegand Card Reader Wiring
