TRANSIT Ultimate | installation guide
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4.4 Digital I/O
4.4.1 Relay output
The relay output is automatically activated upon successful identification / authentication of a transponder. The
automatic-relay-activation-mode can be configured using the firmware. Please refer to the firmware manual for more
details.
Authentication is only performed when Ultimate-mode is enabled. See chapter 6.1 for more details.
By default the front cover LED lights-up simultaneously with the relay
output. This might be changed by enabling manual relay/led activation
mode. See for more details firmware manual.
Connections
NO Relay contact normally open
NC Relay contact normally closed
COM Relay contact common
Figure 18: Relay output connections
Contact ratings
Max. switching current: 2A
Max. switching voltage: 24VDC
Max. switching power: 50W
OSDP
In OSDP operation, the relay output is set with command OSDP_OUT output #0.
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