Digital I/O Signal Conditioning Boards (ISM-TRM-RELAY & ISM-TRM-COMBO)

June 11, 2012

Two isolated digital signal conditioning and termination boards for OEM embedded computer system designers, the ISM-TRM-RELAY and the ISM-TRM-COMBO are small form factor boards for applications requiring signal isolation between a computer and its monitoring/control points. 

 

  • The ISM-TRM-RELAY has 16 independent, Single Pole Double Throw (SPDT) relays. The contacts can handle 6A @ 250V AC/24V DC for applications requiring medium current capacity plus isolation between an embedded computer and monitoring/control points.
  • The ISM-TRM-COMBO provides a combination of 8 independent SPDT relays, 8 isolated outputs, and 8 isolated inputs for applications requiring medium current capacity plus I/O isolation between an embedded computer and monitoring/control points.

The ISM-TRM-RELAY and ISM-TRM-COMBO boards can be placed on the top or bottom of a PC/104 stack. These cards will also easily work with other computer form factors such as EPIC and EBX single board computers mounted on their PC/104 stack or as independent standalone signal conditioning modules for more versatility. Both signal conditioning modules are RoHS-compliant and can operate over an industrial temperature range of -40 to 185°F (-40° to +85°C).

ISM-TRM-RELAYRelaysSixteen, SPDT Form C medium current relaysContacts rated up to 6A @ 250V AC/24V DC+5V nominal coil voltageEach relay has up to 4,000V AC dielectric strength and 6,000V surge strengthPower

+5V required, 500 mA typical

Mechanical

Dimensions: 3.6 x 3.8 in. (91 x 96.5 mm)
Weight: 4.6 oz. (130 g)

Operating Temp.

-40 to 185°F (-40 to 85°C)

 

ISM-TRM-COMBOIsolated Inputs8 optically isolated and debounced inputsInput Voltage: 5 to 30V AC or DC2,500V isolation of signalsIsolated Outputs

8 optically isolated outputs

Each output is an Open-Collector Darlington driver that can sink 500 mA from a 5 to 30V DC external source2,500V isolation of signalsRelays8 SPDT Form C medium current relaysContacts rated up to 6A @ 250V AC/24V DC+5V nominal coil voltageEach relay has up to 4,000V AC dielectric strength and 6,000V surge strengthPower

+5V required, 250 mA typical

Mechanical3.6 x 3.8 in. (90 x 96 mm)3.3 oz. (92 g)Operating Temp.

-40 to 185°F (-40 to 85°C)