PCL-740 PCL-741 PCL-743/745 PCL-746+ RS-232/422/485, Current-loop Communication Card 2-port RS-232, Current-loop Communication Card 2-port RS-422/485 Communication Cards 4-port RS-232/422/485 Communication Card 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) PCL-740 PCL-741 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 PCL-741 provides two isolated RS-232 or current-loop serial ports. You can configure each port individually to RS-232 or current-loop using onboard jumpers. 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 General Card Interface Certifications Connectors Dimensions Power Consumption Weight (Gross) ISA CE PCL-740: 1 x DB9-M, 1 x DB25-M PCL-741, PCL-743, PCL-745: 2 x DB9-M PCL-746+: 1 x DB37-F 185 x 100 mm (7.3" x 3.9") PCL-740: +5 V @ 180 mA max., ±12 V @ 20 mA max. PCL-741: +5 V @ 300 mA (typical), +5 V @ 1.1 A max. PCL-743,PCL-745:+5V@400 mA typical, 950 mA max. PCL-746+: +5 V @ 800 mA typical, 1.5 A max. ±12 V @ 60 mA typical, 120 mA max. PCL-740,PCL-741, PCL-743, PCL-745: 0.6 kg (1.3 lb) PCL-746+: 1.1 kg (2.4 lb) (including cable) Communications Data Bits Data Signals RS-232: Current loop: RS-422: RS-485: I/O Address IRQ Ports Parity Protocols Speed 5, 6, 7, 8 Tx, Rx, CTS, RTS, DTR, DSR, DCD, GND, RI Tx+, Tx-, Rx+, RxTx+, Tx-, Rx+, Rx-, GND, CTS+, CTS-, RTS+, RTSData+, Data-, GND From 200H to 3F8H (for PCL-740/741/743/745) From 000h to 3F8H (for PCL-746+) 3, 4, 5, 6, 7, 9, 10, 11, 12 or 15 PCL-740: 1, PCL-741: 2 PCL-743, PCL-745: 2 PCL-746+: 4 None, even, odd PCI-740: RS-232/422/485, current-loop PCI-741: RS232, current-loop PCI-743, 745: RS-422/485 PCI-746+: RS-232/422/485 PCL-740, PCL-741: 50 bps ~115.2 kbps (for RS-232/422/485) Plug-in Communication Stop Bits UART 50 bps~57.6 kbps (current-loop) PCL-743, PCL-745: 50 bps ~ 921.6 kbps PCL-746+: 50 bps ~ 115.2 kbps 1, 1.5, 2 PCL-743, PCL-745: 2 x 16C550 with 16-byte FIFO PCL-746+: 4 x 16C550 16-byte FIFO PCL-740: 1 x 16C550 with 16-byte FIFO PCL-741: 2 x 16C550 with 16-byte FIFO Protection Isolation Protection EFT Surge Protection 2500 VDC (PCL-741), 3000 VDC (PCL-745B/745S) 2500 VDC (PCL-743S/745S) Software Bundled Software Driver Support ICOM Tools Windows 98/ME/2000/XP, Linux Environment Operating Temperature PCL-740,PCL-741,PCL-746+: 0 ~ 50° C (32 ~ 122° F) PCL-743, PCL-745: 0 ~ 65° C (32 ~ 149° F) Ordering Information PCL-740 PCL-741 PCL-743B PCL-743S PCL-745B PCL-745S PCL-746+ PCL-746+/9 RS-232/RS-422/RS-485/current-loop serial interface card Isolated dual-port RS-232/current-loop interface card. 2-port RS-422/485 communication card 2-port RS-422/485 communication card with EFT surge protection 2-port RS-422/485 communication card with isolation protection 2-port RS-422/485 communication card with isolation and EFT Surge Protection 4-port RS-232/422/485 communication card (30cm DB37 to 4 DB25 cable included) 4-port RS-232/422/485 communication card (30cm DB37 to 4 DB9 cable included)