Low Profile PCI Express 8-Port RS-422, RS-485 Serial Interface

Part: 7802ec Model: COMM+8.422.PCIE

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Description

The 7802ec low profile PCI Express serial interface provides eight serial ports, each individually field-configurable for RS-422 or RS-485 communications. Each serial port features an ultra high-speed UART, flexible clock prescaler, 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 7802ec 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 7802ec 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.

The Sealevel SeaCOM software driver and utilities make installation and operation easy using Microsoft Windows operating systems.

The 7802ec 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 spider-cable that terminates to eight DB9M (CA231) connectors.

Category: Eight Port

Additional information

Host Interface(s)	PCI Express
Communications Chip	Ultra high-speed UART
Electrical Interface	RS-422, RS-485
# of Ports	8
Board Connector	MDB68F
Cable Connector(s)	DB9M (8)
Serial Connector(s)	DB9M
Oscillator	125 MHz BRG
RoHS Compliant	Yes
PC Bracket	Low Profile, Standard Height
Max Data Distance	4000 feet
Max Data Rate	Exceeds 1 Mbps
Dimensions	4.74" (L) x 2.71" (H) w/ Gold Fingers
Operating Temperature	0°C to 70°C (32°F to 158°F)
Storage Temperature	-50°C to 105°C (-58°F to 221°F)
Humidity Range	10 – 90% Relative Humidity, Non-Condensing

Each port individually configurable for RS-422 or RS-485
Ultra high-speed UART with 256-byte Tx and Rx FIFOs
Each port supports asynchronous data rates exceeding 1 Mbps
Bus-derived 125 MHz BRG and clock prescaler support wide range of baud rates
RS-485 line termination, pull-up and pull-down resistors for each port are selectable via dipswitches
RS-485 ECHO can be enabled/disabled via dipswitches
Automatic RS-485 enable/disable in hardware
PCI Express X1 compliant
Compatible with any low profile PCI Express slot. A standard profile bracket is also included
Included 36″ cable terminates to eight DB9M connectors (Item# CA231)