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● I/O Connections: Via two 40 pin IDC type right angle connectors. There are eight pins per port plus common grounds.

● Character Length: 5,6,7, or 8 bits

● Parity: Even, odd, or none

● Stop Interval: 1, 1.5, or 2 bits

● Serial Data Rates: Up to 115.2K baud, asynchronous. A faster range of rates, up to 921.6K, is achieved by jumper selection (RS-232 is 230K max).

● Multidrop: Compatible with RS-485 specifications. Up to 32 drivers and receivers allowed on line. Driver/Receivers used are type 75ALS180. Compatible with RS-422 specifications. Up to ten receivers allowed on line.

● Address: ISA BUS address is set by jumpers on the board. A “Default” jumper determines whether the channel addresses are sequential or loaded from non-volatile memory on the board.

● Interrupts: Individual IRQs for each channel are stored onboard in non-volatile memory.

● Receiver Input Sensitivity: ±200 mV differential input

● Common Mode Voltage Range: +12V to -7V

● Transmitter Output Drive Capability: 60 mA with thermal shutdown. Jumper selectable terminations for input and output, by channel, are provided. Bias is also provided.

● Operating Temperature Range:

- 0 to 70°C on 2 and 4 port versions

- -40 to +85°C on the 8 port version (optional on 2 and 4 port versions)

● Storage Temperature Range: -50 to +120°C

● Humidity: 5% to 95% RH, non-condensing

● Power Required: +5 VDC at 80 mA typical, all outputs open

● This product is designed to be in full compliance with CE requirements.