13
To activate the relay on the Remote unit, connect as shown below. These connections can be used to allow the Remote
relay to operate a DOOR STRIKE, GATE, or other locking hardware. The diagram below shows two methods of
triggering the relays. The first method uses a dry contact to trigger the relay. The second method shows the LED signal
triggering the LEDS.
Relays 1 and 2 are available for accessory outputs at the Remote end. Either relay can be used to provide the Door
Strike or Gate Activation function. This example uses Relay 1. The Relay Input pin is normally high (5V). When the
Relay Input pin is pulled low (0V) the corresponding relay on the Remote unit will be activated. When the relay is
activated, the Relay Output pins will change continuity from N.C. and COM to N.O. and COM (not shown in diagram).
Cypress Suprex® RS-485 Series - Accessory I/O - Central Relay Inputs
Relay Wiring Example - Door Strike Follows LED
Relay Input Wiring Example - Door Strike Follows Dry Contact
Ground
LED Out
Data1
Data 0
N.O.
COM
Access
Control
Panel
Ground
LED Out
Data1
Data 0
N.O.
COM
Access
Control
Panel
+8 to +16 VDC
Ground
exp(+)
exp(-)
+5V Out
P R 4
P R 3
LED In
D1/Data Out
D0/Clock Out
Relay 4 N.O.
Relay 4 Com
Relay 4 N.C.
Relay 3 N.O.
Relay 3 Com
Relay 3 N.C.
Ground
Aux Output
Relay 2 Input
Relay 1 Input
+8 to +16 VDC
Ground
exp(+)
exp(-)
+5V Out
P R 4
P R 3
LED In
D1/Data Out
D0/Clock Out
Relay 4 N.O.
Relay 4 Com
Relay 4 N.C.
Relay 3 N.O.
Relay 3 Com
Relay 3 N.C.
Ground
Aux Output
Relay 2 Input
Relay 1 Input
Central
Central
