Card Type	Data Acquisition
I/O Options	Solid-state relay, high-speed parallel, low-speed parallel
Data Bus	N/A

CONNECTIONS
Function	Label	Function	Label
PBX-721 header	CN1	Power terminals (see pinout below)	SC1
I/O channel 1 (see pinout below)	CN2	Terminals for channels 1 & 2 (see pinout below)	SC2
I/O channel 2 (see pinout below)	CN3	Terminals for channels 1 & 3 (see pinout below)	SC3
I/O channel 3 (see pinout below)	CN4

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
+5V DC in	9	+5V DC in	22
+5V DC in	10	+5V DC in	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

USER CONFIGURABLE SETTINGS
Setting	Label	Position
Latch signal PC0 enabled on channel 1	JP1	Pins 1 & 2 closed
Latch signal PC0 enabled on channel 3	JP1	Pins 2 & 3 closed
Latch signal PC1 enabled on channel 1	JP1	Pins 4 & 5 closed
Latch signal PC1 enabled on channel 3	JP1	Pins 5 & 6 closed