通过认证 
产品介绍：通用PCI总线2路RS-485/RS-422通讯卡
产品特点：
- Built-in COM-Selector
- Self-Tuner Inside
- 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 2-port RS-422/485
- +/-4 kV ESD Protection
- LED diagnostic indicators
[VXC-142iU only] - 3 kV Isolated ports
产品规格：
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Communication Port |
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COM1 ~ COM2 |
RS-422/485 |
The RS-422 and RS-485 cannot be used simultaneously |
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RS-422 |
TxD+, TxD-, RxD-, RxD+, RTS+, RTS-, CTS+, CTS-, GND |
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RS-485 |
Data+, Data-, GND |
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UART |
16C950 compatible |
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Baud Rate |
50 ~ 115200 bps |
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Data bit |
5, 6, 7, 8 |
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Stop bit |
1, 1.5, 2 |
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Parity |
None, Even, Odd, Mark, Space |
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FIFO |
Internal 128 bytes |
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Isolation |
3000 V |
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General |
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Bus Type |
Universal PCI, 3.3 V and 5 V, 33 MHz, 32-bit, plug and play mechanism |
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COM-Selector |
Yes (8-bit DIP switch) |
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Connector |
2 x DB9 (Male) |
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Power Consumption |
480 mA @ 5 V |
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Operating Temperature |
0 °C ~ +60 °C |
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Storage Temperature |
-20 ℃ ~ 70 ℃ |
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Humidity |
0 ~ 90% RH, non-condensing |
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Dimensions (L x W) |
140 mm x 95 mm |
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