QUATECH, INC. OPIN-241 Card Type Data Acquisition I/O Options Solid-state relay, high-speed parallel, low-speed parallel Data Bus N/A [Image] CONNECTIONS Function Label Function Label PBX-721 header CN1 Power terminals (see pinout SC1 below) I/O channel 1 (see CN2 Terminals for channels 1 & 2 SC2 pinout below) (see pinout below) I/O channel 2 (see CN3 Terminals for channels 1 & 3 SC3 pinout below) (see pinout below) I/O channel 3 (see CN4 pinout below) CN2-CN4 PINOUT Function Pin Function Pin Bit 0 1 Bit 0 14 Bit 1 2 Bit 1 15 Bit 2 3 Bit 2 16 Bit 3 4 Bit 3 17 Bit 4 5 Bit 4 18 Bit 5 6 Bit 5 19 Bit 6 7 Bit 6 20 Bit 7 8 Bit 7 21 Not used 9 Not used 22 Not used 10 Not used 23 Not used 11 Not used 24 Not used 12 Not used 25 Not used 13 Not used 26 SC1 PINOUT Function Screw Function Screw AC or +VDC in 1 Power ground 3 AC or -VDC in 2 SC2 PINOUT Function Screw Function Screw Channel 1 bit 0 1 Channel 1 bit 6 7 Channel 1 bit 1 2 Channel 1 bit 7 8 Channel 1 bit 2 3 Channel 3 bit 0 9 Channel 1 bit 3 4 Channel 3 bit 1 10 Channel 1 bit 4 5 Channel 3 bit 2 11 Channel 1 bit 5 6 Channel 3 bit 3 12 SC3 PINOUT Function Screw Function Screw Channel 2 bit 0 1 Channel 2 bit 6 7 Channel 2 bit 1 2 Channel 2 bit 7 8 Channel 2 bit 2 3 Channel 3 bit 4 9 Channel 2 bit 3 4 Channel 3 bit 5 10 Channel 2 bit 4 5 Channel 3 bit 6 11 Channel 2 bit 5 6 Channel 3 bit 7 12