Features
- 8 optically-isolated, non-polarized CMOS compatible digital inputs accept ±31volts DC or AC rms
- 8 form C electro-mechanical relays switch up to 1 A each
- Universal PCI, PCI-X, 3.3V and 5V compatible (Call for PCI-Express availability)
Isolated Inputs
- Number of inputs: Eight
- Type: Non-polarized, optically isolated from each other and from the computer (CMOS compatible)
- Voltage Range: 3 to 31 DC or AC Rms (40 to 10000 Hz)
- Isolation: 500V*(see note) channel-to-ground or channel-to channel
- Input Resistance: 1.8K ohms in series with opto coupler
- Filter Response Times: Rise Time = 4.7 mS / Fall Time = 4.7 mS
- Non-Filter Response Times: Rise Time = 10 uS / Fall Time = 30 uS
*Notes on Isolation: Opto-Isolators and connectors are rated for at least 500V, but isolation voltage breakdowns will vary and is affected by factors like cabling, spacing of pins, spacing between traces on the PCB, humidity, dust and other environmental factors. This is a safety issue so a careful approach is required. For CE certification, isolation was specified at 40V AC and 60V DC. The design intention was to eliminate the influence of common mode. Use proper wiring techniques to minimize voltage between channels and to ground. For example, when working with AC voltages do not connect the hot side of the line to an input. Tolerance of higher isolation voltage can be obtained on request by applying a conformal coating to the board.
Relay Outputs
- Number of outputs: Eight SPDT form C
- Contact Type: Single crossbar; Ag with Au clad
- Rated Load AC: 0.5 A at 125 VAC (62.5 VA max.)
- Rated Load DC: 1A at 24 VDC (30 W max.)
- Max. Switching Voltage: 125 VAC, 60 VDC
- Max. Switching Current: 1 A
- Contact Resistance: 100 mΩ max.
- Contact Life: mech'l: 5 million operations min.
- Operating Time: 5 milliseconds max.
- Release Time: 5 milliseconds max.
Power Required:
- 30 mA typical per Relay Energized
Environmental:
- Operating Temp: 0°C to 70°C (Non-icing)
- Weight: 14.5 oz
Regulatory Compliance
- This product is in full compliance with CE requirements.
