VEX-144i PCI Express Serial Board, 4 Isolated RS-422/485 Ports
PCI Express x1 serial communication card with four isolated RS-422/485 ports, speeds up to 115200 bps and a built-in COM-Selector for flexible COM port numbering.
- Four RS-422/485 serial ports, each selectable as RS-485 half-duplex or RS-422 full-duplex
- Baud rates from 50 to 115200 bps with 5 to 8 data bits, five parity options and 1 to 2 stop bits
- 2500 VDC isolation on each port and ±4 kV ESD protection (i version)
- Built-in COM-Selector (8-bit DIP switch) for manual COM port numbering or automatic driver assignment
- 128-byte hardware FIFO per port and up to 128 KB software buffer per COM port under Windows
- PCI Express x1 short card design
2 140,03 kr per stk.
| 1–9 stk. | 2 140,03 kr | |
|---|---|---|
| 10–30 stk. | 2 077,70 kr | −3 % |
| 31+ stk. | 2 036,15 kr | −5 % |
Produktinformasjon "VEX-144i PCI Express Serial Board, 4 Isolated RS-422/485 Ports"
The VEX-144i CR adds four RS-422/485 serial ports to a PC through a short PCI Express x1 card. Each port can be set to RS-485 for half-duplex or RS-422 for full-duplex operation, with baud rates from 50 to 115200 bps, so it suits engineers connecting several field devices to one computer.
The i version isolates the data lines of each port with photocouplers rated at 2500 VDC, which helps break ground loops and limits the effect of common mode voltages and voltage spikes. On-board ESD protection rated at ±4 kV diverts static discharge away from sensitive circuitry, protecting the computer and attached equipment in harsh environments.
COM port numbers can be assigned manually using the 8-bit DIP switch of the built-in COM-Selector, or left to the driver to pick an available number automatically. Each port has a 128-byte hardware FIFO, and the driver provides up to 128 KB of software buffer per COM port under Windows, which is useful for large file transfers. The card includes one CA-4002 connector with a female DB-37 interface.
Applications
- Industrial Machinery
- Building Automation
- Restaurant Appliances
- Laboratory Equipment & Research
- Industrial Communication
| Product type: | Multi-port serial board |
|---|---|
| Interface: | PCI Express x1 |
| Ports: | 4 |
| Isolation: | 2500 VDC |
| Operating temperature: | 0 ~ +60 °C |
Spesifikasjoner
| Hardware | |
|---|---|
| Connector | Female DB-37 |
| COM-Selector | Yes (8-bit DIP switch) |
| COM Ports | |
| Ports | 4 x RS-422/485 (RS-422: TxD+, TxD-, RxD+, RxD-, RTS+, RTS-, CTS+, CTS-, GND / RS-485: Data+, Data-, GND) |
| Baud Rate | 50 ~ 115200 bps |
| Parity | None, Even, Odd, Mark, Space |
| Data Bit | 5, 6, 7, 8 |
| Stop Bit | 1, 1.5, 2 |
| FIFO Size | Internal 128 bytes |
| Isolation | 2500 VDC |
| Power | |
| Consumption | 880 mA @ 5 V |
| Mechanical | |
| Dimensions (mm) | 101 x 114 x 22 (W x L x D) |
| Environment | |
| Operating Temperature | 0 ~ +60°C |
| Storage Temperature | -20 ~ +70°C |
| Humidity | 5 ~ 85% RH, Non-condensing |
Spesifikasjoner som oppgitt av produsenten. Med forbehold om endringer.
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