The 7402ec low profile PCI Express serial interface provides four serial ports, each individually field-configurable for RS-422 or RS-485 communications. Each serial port features an ultra high-speed UART, flexible clock prescalar, and large 256-byte Tx/Rx FIFOs, allowing the adapter to support the widest range of standard and non-standard baud rates exceeding 1 Mbps. These features make the 7402ec ideal for data-intensive applications that require reliable, ultra-fast throughput rates.
In RS-485 mode the board provides automatic control of the RS-485 driver in hardware, eliminating the need for application software control. This allows the 7402ec to be used with standard serial communications applications and removes the risk of bus contention and data corruption. Additionally, RS-485 network termination, critical to robust multi-drop communication, can be selectively added to the circuit via DIP-switches.
Sealevel SeaCOM software driver and utilities make installation and operation easy using Microsoft Windows and Linux operating systems.
The 7402ec is a PCI Express X1 board is compatible with any low profile PCI Express slot. A standard profile bracket is also included. The board ships with a 36-inch cable that terminates to four DB9M connectors (CA200).