Part# 3547

For maximum versatility without opening the PC/104 stack, each port is software configurable for full-duplex (4-Wire) RS-422 or RS-485. Half duplex (2-Wire) RS-485 mode is also supported. The 'auto-enable' circuit automatically handles the RS-485 driver, which eliminates the risk of bus contention and data corruption. With the driver controlled in hardware, the RS-485 ports are treated as standard serial COM ports by the operating system. Jumpers on the board allow you to suppress ECHO on a per-port basis.

The 3547 includes an Oxford 16954 UART with 128-byte transmit and receive FIFOs for fast, error-free communications up to 921.6K bps. The UART includes support for 9-bit protocol and the clock prescaler, coupled with a 14.7456 oscillator, provides the highest resolution for achieving all standard and many non-standard baud rates.

Sealevel's SeaCOM software drivers and utilities make installation and operation easy using Windows 98SE, ME, NT, 2000, XP and Vista operating systems. Standard operating temperature range is 0C 70C, and an extended temperature range version offering -40C +85C is also available.