PCL-745 2-port RS-422/485 Cards with 3000 VDC Isolation and Surge Protection (PCL-745)
The PCL-745 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. The PCL-745S card differs from the PCL-743S card in that the former uses on-board optical isolators to protect your PC and equipment against damages from ground loops, increasing system reliability in harsh environments. To further increase reliability, the PCL-745S offers surge protection technology, protecting your system from abrupt high voltage surges (up to 2500 V) such as those caused by lightning.
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PCL-745 2-port RS-422/485 Cards with 3000 VDC Isolation and Surge Protection Features
Two independent RS-422/485 serial ports
Provides 3000 VDC isolation
Provides 2500 VDC surge protection
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
Supports standard DOS COM1, COM2, COM3, and COM4
Supports Windows® 98/2000/XP, Linux®
Powerful and easy-to-use utility (ICOM Tools)
PCL-745 2-port RS-422/485 Cards with 3000 VDC Isolation and Surge Protection 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-745
Ordering information for PCL-745 2-port RS-422/485 Cards with 3000 VDC Isolation and Surge Protection
| Product code | Product options |
|---|
| PCL-745B | 2-port RS-422/485 Cards with 3000 VDC Isolation Protection |
| PCL-745S | 2-port RS-422/485 Cards with Surge Protection |
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