Sunlite Forum

Hi I'm looking for a detailed specification for the External I/O interface that appears on the SLESA-IP1 and U5 modules. I'm looking to interface to the units from an external piece of kit and wanted to know what the logic thresholds were for this interface? e.g. TTL / CMOS etc. Are the I/O lines internally pulled up to 3V3 or 5V within the device? Thereby an open collector output would be capable of driving the input? Please advise. Thanks and regards.

The IO ports are just dry contacts, no voltage needs to be sent.

http://www.nicolaudie.com/tutorials/esa/

See the port triggering tutorial under the advanced features heading