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The VXC-142 series card provides two RS-422/RS-485 serial ports. Each port can be configured as either RS-485 for half-duplex or RS-422 for full-duplex communication. It supports for speed up to 115200 bps and supports full-duplex communication. Users may specify a COM port number manually by setting dip switch, or let the driver choose an available number automatically. The driver provides a maximum of 128 KB software FIFO for each COM port under Windows. It's practical for large file transmission. In harsh industrial environments, the on board ESD protection component diverts the potentially damaging charge away from sensitive circuit and protects the computer and equipment from being damaged by high potential voltage. The serial communication card are designed for use with intelligent devices like bar code reader, serial printers, intelligent sensors, instrumentation equipment, computers and almost any device with an RS-422/RS-485 port. |
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- Provides 2 RS-422/485 ports
- Built-in COM-Selector
- +/-4 kV ESD Protection
- 128 KB Software Buffer (max.) for Each COM Port Under Windows
- Windows NT/2K/XP/2003 Driver Supported
- 2500 VDC Isolation for VXC-142iU
- 3 kV Isolated ports for VXC-142i
- Short Card Design for VXC-142(i)U
- 128-byte Hardware FIFO for Each Port for VXC-142(i)U
- Supports 3.3 V/5 V PCI bus, Plug and Play for VXC-142(i)U
- LED diagnostic indicators for VXC-142(i)
- Supports 5 V PCI bus, Plug and Play for VXC-142(i)
- 16 bytes hardware FIFO for each port for VXC-142(i)
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| Models |
VXC-142 |
VXC-142i |
VXC-142U |
VXC-142iU |
| Communication Port |
| COM1 ~ COM2 |
RS-422/485 |
The RS-422 and RS-485 cannot be used simultaneously |
| RS-422 |
TxD+, TxD-, RxD+, RxD-, RTS+, RTS-, CTS+, CTS-, GND |
| RS-485 |
Data+, Data-, GND |
| UART |
16C550 compatible |
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 |
| FIFO |
Internal 16 bytes |
Internal 128 bytes |
| Isolated |
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3000 Vrms |
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2500 VDC |
| General |
| Bus Type |
PCI bus (v2.1), 5 V, 33 MHz, 32-bit,
Plug and Play mechanism |
Universal PCI, 3.3 V and 5 V, 33 MHz, 32-bit, Plug and Play |
| COM-Selector |
Yes (8-bit DIP switch) |
| Connector |
2 x Male DB-9 |
| Power Consumption |
105 mA @ 5 V |
500 mA @ 5 V |
100 mA @ 5 V |
480 mA @ 5 V |
| Operating Temperature |
0 °C ~ +50 °C |
| Storage Temperature |
-20 °C ~ +70 °C |
| Humidity |
0 ~ 90% RH, non-condensing |
| Dimensions (L x W x D) |
130 mm x 105 mm x 22 mm |
140 mm x 95 mm x 22 mm |
134 mm x 90 mm x 22 mm | | |
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