Description

The APCI-7420-3 communication card is configured by inserting MX modules which the board identifies automatically. The 2-port interface APCI‑7420‑3 can be used as universal PCI boards in 3.3 V or in 5 V systems, and in PCI or PCI-X systems. The interface can be configured through modules in the following modes: RS232, RS422, RS485 and 20 mA current loop (with optical isolation). The MX modules with optical isolation allow a protection of up to 1000 V for the use in noisy environments where ground loops can occur. The I/O lines are protected against short-circuits, fast transients, electrostatic discharge and
high-frequency EMI. The interface is supported through a 128-byte FIFO buffer for sending and receiving data and guarantees reliable operation at high transfer rates.

Features

• Asynchronous communication adapter
• PCI 3.3 V or 5 V
• Modular mounting through MX modules : 2 sockets for 2-port serial interface
• Can be configured as RS232, RS422, RS485, 20 mA
  Current Loop (active, passive), with optical isolation through separate SI modules
• Automatic addressing through BIOS
• Automatic module identification
• 128-byte FIFO buffer for sending and receiving data
• Programmable transfer rate
• 5-, 6-, 7- or 8-bit character
• 1, 1½ or 2 stop bits
• Parity: even, odd or none
• Automatic transmitter control for RS485 and transmitter control through FIFO level
• Common interrupt

Safety features

• MX modules with optical isolation 1000 V
• Creeping distance IEC 61010-1 (VDE411-1)
• Protection against fast transients (Burst)
• Short-circuit protection for RS422 and RS485
• Detection of false start bits
• Internal diagnostic possibility, break, parity, overrun and framing error

Applications

• Industrial serial communication
• Data acquisition
• Direct connection to sensors
• Multi-user systems
• PLC interface
• Multidrop applications
• Weighing devices
• Modem and printer control, etc

Software drivers

Standard drivers and samples for:

• Linux
• Windows (32/64)
• Real-time with Linux (i.e Xenomai) and Windows (i.e RTX) on request

On request:

Further operating systems, compilers and samples. Driver download: www.addi-data.com/downloads