● Number: 16, 8 or 4

● Type: Non-polarized, optically isolated from each other and from the computer (CMOS compatible)

● Voltage: 3 to 31 DC or AC RMS (40 to 10000Hz)

● Isolation: 500V channel-to-ground and channel-to-channel

● Resistance: 1.8KΩ in series with opto-coupler

● Filter Response

- Rise-time: 4.7 ms

- Fall-time: 4.7 ms

● Non-Filter Response

- Rise-time: 10 μs

- Fall-time: 30 μs

● Number: 4

● Digital Inputs (4 or 2 LVTTL)

- Logic High: 2.0V to VCCIO (3.3VDC, 5VDC tolerant)

- Logic Low 0V to 0.8V

● Digital Outputs (4 or 2 LVTTL

- Logic High: 2.0V (min) 24mA source

- Logic Low: 0.55V (max) 24mA sink

● Operating Temperature 0° to +70°C, optional -40° to +85°C

● Storage Temperature -40° to +105°C

● Humidity 5% to 95% RH, without condensation

● Power required: +3.3VDC @ 360ma (typical)

● M.2 card characteristics

- Weight:5.8 grams (plus 22.2g for the cable)

- Length:80mm with breakaway to shorten to 60mm

- Width: 22mm

- I/O connector:On-card: Molex 501190-4017 40-pin latching; Mating: Molex 501189-4010

● Isolation board characteristics

- Weight: 51.4 grams, (+11.2 grams for the 9″ cable)

- Size (Mobile-ITX sized):Length: (2.952″), Width: (1.1.772″)

- I/O connector:On board: Male, D-Sub Miniature, 37-pin, Mating: Female, D-Sub Miniature, 37-pin