AirLink GX Series Hardware User Guide
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4114008
To check the current digital input values, in ACEmanager:
1.
Go to I/O > Current State.
Digital I/O Interface
There are four digital I/O pins on the high density DB15 connector. Typical
applications are:
•
Input—source is a dry switch contact to ground
•
Output—to drive a relay coil to ground
•
Analog—to detect voltage levels in input or output mode
Pins include a 51 k
pull up to 2.8 VDC.
Figure 2-25: Digital Input Operation
Shield
Cable Shield
This is not a VGA connector
Note: Digital Input 1 in ACEmanager is reserved for Pin 4 on the power connector.
Table 2-5: I/O 15-Pin Connector Pin Description
Pin
Name
Description
Wire color
(on optional I/ O X-Card breakout
cable)
2.8 V
Contact closed
Digital 0
0 VDC to 1.2 VDC
Contact open
Digital 1
2.2 VDC to 30 VDC
Contact
Ground
51 k
internal
pull up
I/O Circuit
Examples: Door opening/closing, valve opening/closing, ignition on/off, tow bar up/down,
empty/full container.
AirLink GX device
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