GCS Satellite Hardware Manual - Galaxy Control Systems

Pin 5: This is Data 0 for the reader.
Pin 6: This is the red LED for Galaxy Control System’s Infrared format readers. Because
most other readers support only one LED this is unused for all other readers.
Pin 7: This pin is the common pin for the Door Contact and the Request to Exit Device.
Pin 8: This pin is the sense pin. The Door contact should wire between this pin and pin 7
(common). When the door is closed, the panel must see a contact closure between
these pins. If contacts are not being used, the jumper associated with that port (J3
and J5) must be placed in the marked position (marked with a white line next to the
jumper).
Pin 9: A Request to Exit Device can be wired between this Pin and pin 7 (common). This
Device is normally open. When the panel sees a closure, it can be programmed to
shunt the door contact and trigger Relay One or just shunt the door contact.
Infrared Swipe Readers and Keypads
The following diagram of the Processor Board describes each pin’s function for a Galaxy
reader port. Pin 1 is on the left.
Galaxy recommends using 10 conductor, 22 AWG (Beldon # 9946), shielded cable for
the reader (6), door sense (2), and manual egress wiring (2). Maximum distance is 2500 feet.
All cables should be run inside a grounded conduit with only the controller end of the cable
shield grounded. Do not run cables in conduit that already has wire in it. The reader, door
sensor and egress device wires should be kept in a separate cable from the relay output,
because door releases generally draw more power than the other devices and may cause
interference and voltage spikes if both are in the same jacket.
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