TRANSIT Ultimate | installation guide
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4.4.4
General purpose inputs
Three general purpose inputs are available on the TRANSIT Ultimate. The inputs are active low. No external voltage
should be applied to the inputs. Connect to ground using a potential-free contact (relay) to activate. Leave open or
unconnected when not used or inactive.
Depending upon the used firmware version, these inputs optionally can be used to activate the relay or control the
front-cover 3-color LED. See for more details the firmware guide.
Connections
IN-1
General purpose input 1
IN-2
General purpose input 2
IN-3
General purpose input 3
GND
Ground
Figure 21: GPIO inputs
OSDP
In OSDP operation, these inputs are used to control the relay output and the front cover LED.
See for more details chapter 3.
GND
IN-1
IN-2
IN-3
