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Products > Advantech > Intelligent Connectivity > ISA-bus Communication Cards

PCL-741

2-port RS-232 Current-loop Communication Card

Main Features

RS-232, RS-422, RS-485 or current-loop interface
16C550 UART with 16-byte FIFO
Transmission speeds up to 921.6 kbps
Flexible I/O address and IRQ selection
IRQ: 3, 4, 5, 6, 7, 9, 10, 11, 12 or 15
Complete RS-232 modem control signals
Supports 4-wire or 2-wire operation for RS-422/485
Automatic RS-485 data flow control
Space reserved for termination resistors
Supports Windows® 98/ME/2000/XP, Linux
Powerful and easy-to-use utility (ICOM Tools)

Introduction

The PCL-740 offers a versatile range of high speed interfacing options. You can switch its single port between the popular RS-232, long distance RS-422, multi-drop RS-485, or noise-resistant current-loop. The card’s 16C550 UART has an on-chip 16-byte FIFO buffer for faster and more reliable communication, especially under Windows.
The card has two 16C550 UARTs with on-chip 16-byte FIFO buffers. The UARTs buffer data into 16-byte packets before sending it to the bus. This drastically reduces CPU load and avoids data loss when the system is busy and cannot process the interrupt quickly. These FIFO buffers make the PCL-741 especially suitable for high speed serial I/O under Windows. Onboard optical isolators protect your PC and equipment against damage from ground loops, increasing system reliability in harsh environments.

Specifications
Part Number		PCL-741-AE
communication<br>Interfaces	CAN	-
	Current Loop	V
	RS-232	V
	RS-422	-
	RS-485	-
Display	Ports	2
Network	Cable Connector Type	N/A
Protection	Isolation	2500 VDC
Protection	Surge	-