Manual



 are available via the male 9-pin GPIO port on the back of the NX Rack. Inputs are triggered by


of sinking up to 200 mA at a voltage up to 12 V. Do not switch AC mains power using these contacts.

Pin 1 Input #1
Pin 2 Input #2
Pin 3 Input #3
Pin 4 Input #4
 Ground
Pin 6 Output #1
Pin 7 Output #2
Pin 8 Output #3
Pin 9 Output #4

The 

is pinned on a RS-232, 9-pin D female in DCE-style pinning. The port is designed to connect to a 9-pin PC serial port


Pin #  
1 CD 
2 RX Data 
3 TX Data To NX Rack
4 DTR To NX Rack
 Ground
6 DSR 
7 RTS To NX Rack
8 CTS 
9 RI 