Multichannel Systems USB-MEA256-System Manual - Manual (Page 60)

Appendix
39
6.11 Digital IN / OUT Extension
16 bit Digital IN / OUT Connector (68-Pin MCS Standard Connector)
Pin 1 GNDP (power ground)
Pin 2 GNDS (signal ground)
Pin 3 - 10 Digital Output channels bit 0 to 7
Pin 11 - 14 GNDS (signals ground)
Pin 15 - 22 Digital output channels bit 8 to 15
Pin 23 - 26 GNDS (signals ground)
Pin 27 - 34 Digital input channels bit 0 to 7
Pin 35 - 38 GNDS (signals ground)
Pin 39 - 46 Digital output channels bit 8 to 15
Pin 47 - 48 GNDS (signals ground)
Pin 49 - 63 Internal use, please do not connect
Pin 64 - 66 GNDS (signals ground)
Pin 67 Positive supply voltage
Pin 68 Negative supply voltage