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CP7404 4 Port RS-232/422/485 Each port individually configurable for RS-232, RS-422, or RS-485 16C850 buffered UARTs with deep 128-byte FIFO Data rates to 460.8K bps Automatic RS-485 enable/disable Includes Windows advanced COM: drivers, utilities, INF files and help files to simplify installation Supports Windows, Linux, QNX, DOS, and other operating systems 36” cable terminates to four DB-9M connectors included

The 7404 PCI serial interface provides four field selectable ports configurable as RS-232, RS-422, or RS-485 supporting asynchronous data rates up to 460.8K bps. In RS-485 mode, our autoenable feature allows the 7404 to be viewed by the operating system as a standard COM port

Includes a 36" cable which terminates in four DB-9M connectors

We include our Advanced COM drivers for Windows 95/98/ME/NT/2000/XP providing IRQ sharing, Windows serial diagnostics, and other enhanced features. Our Linux and QNX utilities are also included to simplify installation.

Number of ports	4
Communications Chip	16C864
Max. data rate	460.8K bps
Max. data distance	Up to 4000 ft.
Operating temperature	0 - +70°C
Storage temperature	-50 - +105°C
Humidity range	10 - 90% R.H.