MTS Model FlexTest SE - Manual (Page 199)

Digital I/O Connections
Models FlexTest® IIm/GT/SE Controller Hardware FlexTest IIm Controller Connections 199
Digital outputs • Digital outputs provide an optically isolated open collector/open emitter
output.
• The digital outputs are controlled by the Digital Output process in the
MultiPurpose TestWare application. They can also be controlled manually
in the Station Manager application.
• Each digital output connector located on the Digital I/O Access Panel
supports two channels.
• Each digital output is an open collector/open emitter rated at 30 V DC max
at 50 mA max.
Connector pinouts The pin connections for the digital inputs and digital outputs are the same. Each
“D” style connector supports two channels.
J3 - 4
9
4
Ext Voltage
+CH4
-CH4
common
External Device
Opto-
Coupler
Digital I/O
Access Panel 498 Digital I/O
Transition Module
This figure shows how to
connect to an external
circuit using an external
power supply.
4
5
8
9
2
1
2
6
7
1
3
+12 V DC
+12 V DC
12 volt common
12 volt common
–Odd Channel #
–Even Channel #
+ Odd Channel #
+ Even Channel #
For example, the pins
associated with channels 1
and 2 are outlined.
The 12 volt supply is
reserved for the digital
inputs and should not be
used to power external
devices (it is rated for
maximum 250 mA current).