The dual analog inputs/outputs are provided on two BNC connectors. Either or both of these connectors can be selected as inputs or outputs. When configured as inputs, they have differential inputs with ±15V range. When configured as outputs, they are unbalanced with ±15V range. In either configuration they have 500uV resolution.

The dual digital inputs/outputs are provided on latching 50 pin SCSI-II HD50 connectors. Either or both of these connectors can be selected as inputs or outputs. When configured as inputs, they can accept either LVTTL or TTL logic levels. When configured as outputs, they have LVTTL logic levels 0/3V3.

The pinout of the HD50 connectors is shown here on the right. Pins 1-24 are assigned to the 24 logic I/Os, pins 26-49 are assigned gnd/common, and pins 25&50 provide 3.3VDC for external application use. These two pins have 500mA polyfuse current protection.

Industry standard cables are widely available for connection to both the analog and digital connectors.