Description
The VXC-144iU card provides 4-isolated RS-422/RS-485 serial ports which withstand isolation voltage up to 3 kV.
Each port can be configured as either RS-485 for half-duplex or RS-422 for full-duplex communication. It is equipped with 128 bytes hardware FIFO for each port, offering speeds up to 115200 bps and suitable for long distance communication links.
Users can select a specified COM port number manually by setting dipswitch, or bu letting the driver choose an available number automatically. The driver provides a maximum of 128 KB software FIFO for each COM port under Windows, making it practical for large file transmission.
In harsh industrial environments, the on board ESD protection can protect the computer and equipment from being damaged by high potential voltage.
Users can select a specified COM port number manually by setting dipswitch, or bu letting the driver choose an available number automatically. The driver provides a maximum of 128 KB software FIFO for each COM port under Windows, making it practical for large file transmission.
In harsh industrial environments, the on board ESD protection can protect the computer and equipment from being damaged by high potential voltage.
Features
- Built-in COM-Selector
- 3000 V isolation
- Up to 128 KB software FIFO for each COM port under Windows
- Short Card Design
- Supports 3.3 V/5 V PCI bus, Plug and Play
- Provides 4 port RS422 / RS485
- 128 bytes hardware FIFO for each port
- +/-4 kV ESD Protection
- Driver for Windows NT 4.0
- Driver for Windows 2000/XP/2003/Vista (32 bit)
- Driver for Linux
Specifications
Communication Port
-
COM1~COM4 The RS-422 and RS-485 modes cannot be used simultaneously
RS-422 TxD+, TxD-, RxD-, RxD+, RTS+, RTS-, CTS+, CTS-, GND
RS-485 Data+, Data-, GND - UART 16C950 compatible
- Baud Rate 50 ~ 115200 bps
- Data bit 5, 6, 7, 8
- Stop bit 1, 1.5, 2
- Parity None, Even, Odd, Mark, Space
- Isolation 3000V
- FIFO Internal 128 bytes
- General
- Bus Type Universal PCI, 3.3 V and 5 V, 33 MHz, 32-bit, plug and play mechanism
- COM-Selector Yes (8-bit DIP switch)
- Connector DB37 (Female)
- Power Consumption 880 mA @ 5 V
- Operating Temperature 0 ~ 50°C
- Storage Temperature -20°C ~ 70°C
- Humidity 0 ~ 90% RH, non-condensing
- Dimensions (L x W) 130 mm x 105 mm