TransPort WR31 hardware
Digi TransPort User Guide
43
Example digital and analog I/O wiring
Digital input with pullup
Digital input without pullup
Note
that
input
is
HIGH
when
contact
is
CLOSED.
Digital output
The wiring diagram assumes a current-limiting resistor provided by installation or connected
device is in use.
DIGITAL
INPUT
DIGITAL
RETURN
Digital
Input
WR31_3v3
Pull
Ͳ
up
ON
External
Contact
(Door
Contact,
etc.)
DIGITAL
INPUT
DIGITAL
RETURN
Digital
Input
External
Contact
(Door
Contact,
etc.)
Digital
Output
Enable
DIGITAL
RETURN
DIGITAL
INPUT