| Technical specifications |
| Relay specifications |
| Number of relays | 8 |
| Relay configuration | 8 Form C (SPDT) Normally Open, Normally Closed and Common available at screw terminals |
| Contact configuration | 24 Form C (SPDT) Normally Open, Normally Closed and Common available at screw terminals |
| Contact rating | 5 A @ 240 VAC or 28 VDC resistive |
| Contact resistance | 100 m? max (initial value) |
| Operate time | 10 ms max |
| Release time | 5 ms max |
| Vibration | 10 Hz to 55 Hz (amplitude 1.5 mm) |
| Shock | 10 G (11 ms) |
| Dielectric isolation (between relayopen contact) | 300 VAC, 50/60 Hz (1 minute) |
| Dielectric isolation (between PCB output lines) | 500 VAC, 50/60 Hz (1 minute) |
| Life expectancy | 10 million mechanical operations, min |
Power on state
S2 = pull-up Energized.
S2 = pull-down | Not energized. NC in contact to Common
NO in contact with Common |
| Relay control logic polarity | User-configurable per bank via switch S1 for invert or non-invert (default). Switch settings for polarity can be read back via software through the USB bus. Switch settings do not affect the power on condition. |
| Pull-up/pull-down (controls relay power on state) | User-configurable per bank via switch S2 for pull-down (default) or pull-up. Switch settings can be read back via software. |
| Power |
| USB +5 V input voltage range | 4.75 V min. to 5.25 V max. |
| USB +5 V supply current | 10 mA max |
| External power supply (required) | 9 V ±10% @ 1 A |
| External power input | +6.0 VDC to 12.5 VDC
(9 VDC power supply included) |
Voltage supervisor limits
PWR LED | LED = Off (power fault)
PWR LED = On |
| External power adapter (included) | +9 V ±10%, @ 1 A |
