Pin Assignment for the TSX AEY 810 Connector
(Original Document)
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At a Glance
The TSX AEY 810 input module consists of a 25-pin Sub-D connector.
Connector Pins
The connector pins are shown below: 
+IVx
+ Pole voltage input of channel x 
+ICx
+ Pole current input of channel x 
COMx
- Pole current or voltage input of channel x 
STD
The "strap" between pin 13 and the ground (using a cover) is used to detect connector unpinning.