● 8, 4, or 2 independent asynchronous serial COM ports

● Field selectable RS-232, RS-422 and RS-485, independent for each port

● Auto-RTS feature makes half-duplex RS-485 communications effortless

● Speeds up to 921.6K with 64-byte FIFO (RS-232 is 230K max)

● Fixed bias and jumper selectable termination provided on each transmit and receive channel simplifies cabling

● Programmable individual non-volatile base addresses and IRQs simplifies installation

● Low power required: +5VDC at 80 mA typical

● Operates as a standard COM port in all operating systems

● Extended operating temperature (-40°C to +85°C) on the 4 and 8 port versions

● RoHS Available. Please contact us for ordering information

● Industrial Equipment Control

● Waveform/Audio Synthesis

● Stimulus-Response

● Test

Drivers for various operating systems are also provided, including active support for Windows XP -> 10 — all in both 32-bit and 64-bit flavors, and including consumer, server, and embedded varieties — as well as the 2.6 and newer Linux kernels and recent OSX / macOS versions. Many products continue to ship with driver support for Windows 95, 98, Me, NT4, and Windows 2000, but support for these operating systems is considered deprecated.