PCL-743 2-port RS-422/485 Interface Cards (PCL-743)
The PCL-743 series card provides two RS-422/485 serial ports. Each port utilizes a 16C550 UART with an on-chip 16-byte FIFO buffer for reliable, high-speed serial I/O. The UART buffer divides data into 16-byte packets before sending them onto the bus. This drastically reduces the CPU load and avoids data loss due to failure to respond to the interrupt request in time. The UART is especially useful for high speed serial I/O under Windows
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PCL-743 2-port RS-422/485 Interface Cards Features
Two independent RS-422/485 serial ports
16C550 UARTs with on-chip 16-byte FIFO
Transmission speeds up to 921.6 kbps
I/O address and interrupt selectable
Wide IRQ selection: 3, 4, 5, 6, 7, 9, 10, 11, 12 or 15
Supports 2 wire or 4 wire operation
Supports Tx, Rx, RTS, and CTS signals
Automatic RS-485 data flow control or RTS control
Termination resistors jumper enable/disable
Space reserved for optional surge protection on data lines
Supports Windows® 98/2000/XP, Linux®
Powerful and easy-to-use utility (ICOM Tools)
PCL-743 2-port RS-422/485 Interface Cards Specifications
| General |
|---|
| Models | PCL-740/PCL-741/PCL-743/PCL-745/PCL-746+ |
| Card Interface | ISA |
| Certifications | CE |
| Connectors | 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 |
| Dimensions | 185 x 100 mm (7.3" x 3.9") |
| Power Consumption | 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. |
| Weight (Gross) | 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 | 5, 6, 7, 8 |
| | RS-232: Tx, Rx, CTS, RTS, DTR, DSR, DCD, GND, RI |
| | Current loop: Tx+, Tx-, Rx+, Rx- |
| | RS-422: Tx+, Tx-, Rx+, Rx-, GND, CTS+, CTS-, RTS+, RTSRS- |
| | 485: Data+, Data-, GND |
| I/O Address | From 200H to 3F8H (for PCL-740/741/743/745) |
| | From 000h to 3F8H (for PCL-746+) |
| IRQ | 3, 4, 5, 6, 7, 9, 10, 11, 12 or 15 |
| Ports | PCL-740: 1, PCL-741: 2 |
| | PCL-743, PCL-745: 2 |
| | PCL-746+: 4 |
| Parity | None, even, odd |
| Protocols | 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 |
| Speed | PCL-740, PCL-741: 50 bps ~115.2 kbps (for RS-232/422/485) |
| | 50 bps~57.6 kbps (current-loop) |
| | PCL-743, PCL-745: 50 bps ~ 921.6 kbps |
| | PCL-746+: 50 bps ~ 115.2 kbps |
| Stop Bits | 1, 1.5, 2 |
| UART | 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 | 2500 VDC (PCL-741), 3000 VDC (PCL-745B/745S) |
| EFT Surge Protection | 2500 VDC (PCL-743S/745S) |
| Software |
|---|
| Bundled Software | ICOM Tools |
| Driver Support | 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) |
External links for PCL-743
Ordering information for PCL-743 2-port RS-422/485 Interface Cards
| Product code | Product options |
|---|
| PCL-743B | 2-port RS-422/485 Interface Cards |
| PCL-743S | 2-port RS-422/485 Interface Cards with EFT Surge protection |
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