L-Tron Corporation - Pittsford, NY
Distributor
Distributor of I/O modules. Types include RS-485, MODBUS, wireless, Ethernet, PCI, ISA, PC 104 & USB I/O modules. Various features include bus-powered, interrupt handling, support dry/wet contact, built-in web server & supports pulse output up to 100 Hz.

Saelig Company Inc - Pittsford, NY
Distributor, Manufacturer, Custom Manufacturer
Distributor of UDP/IP controlled digital Input/Output module including ether digital I/O module. Features include three 8-bit ports with each line independently programmable as input or output & 5 V level signal lines. Modules connect to Ethernet network supporting TCP/IP protocol suite & communicate with any point on network. By connecting with internet router device can communicate with internet connected device.