The CP7804 is a multi-interface,
eight port, Universal Bus (3.3V or 5V) compatible PCI adapter.
Offering eight individual field-selectable RS-232, RS-422,
or RS-485 channels, the CP7804 delivers ultimate flexibility
for expanding serial communications.
The CP7804 supports standard PC data rates and boasts a
top speed of 921.6K bps. The board is designed using the
XR16C864 UART, which provides a 128-byte FIFO, eight times
larger than boards designed with 16C550 compatible parts.
The larger buffers allow error free operation even in high-speed
applications. In RS-485 mode the board provides automatic
control of the RS-485 driver enable for trouble free network
master arbitration. Additionally, RS-485 network termination,
critical to robust multi-drop communication, can be selectively
added to the circuit via DIP-switches.
Windows 3.1x drivers and OS/2 drivers are available. We
include our Advanced COM drivers for 95/98/ME/NT/2000 and
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 |
8 |
| Communications Chip |
16C864 |
| Max. data rate |
921.6K bps |
| Max. data distance |
Up to 4000ft. |
| Operating temperature |
0 - +70°C |
| Storage temperature |
-50 - +105°C |
| Humidity range |
10 - 90% R.H. |
