13401 ISA card 2x 20mA
Price per Unit (piece):
1.145,00 DKK
20mA interface card with two serial ports, 1kV isolation
Application:
PC as PLC programming device
Background information:
The commonly used 20mA or current loop interface is still very popular in industrial systems. Due to the low input resistance at the devices, the lines are protected against interfering induced voltage. The port is therefore particularly suitable for use in industrial environments where data is to be transmitted over long distances. The two devices must however be properly isolated from each other. Voltage between devices can result in incorrect data transmission or the destruction of the interfaces.
| Number of ports: |
|
2 galvanically isolated 20mA ports |
| Operating modes: |
|
suitable for active or passive mode |
| UART: |
|
16550 with FIFO |
| Base addresses: |
|
03F8H, 02F8H, 03E8H, 02E8H |
| Interrupts: |
|
IRQ 3..7, IRQ 9..12 |
| Baud rate: |
|
50..57,600 baud |
| Data format: |
|
any format |
| Signals: |
|
RxD+, RxD-, TxD+, TxD- |
| Serial connections: |
|
9-pin SUB-D connector |
| Galvanic isolation: |
|
Isolation voltage min. 1 KV DC
between PC and serial ports |
| Power supply: |
|
+5V 0.2A, +12V 0.1A |
| Ambient temperature: |
|
Storage: -40..+70°C, Operation: 0..+70°C |
| Permissible relative humidity: |
|
0..95% RH (non-condensing) |
| Dimensions: |
|
165 x 106 mm |
| Weight: |
|
approx. 150 g |
| Delivery: |
|
1x ISA card 2x 20mA |
Product properties:
- Upgrading of PCs with 20mA serial ports
- Manual configuration by means of DIL switch
- Flexible configuration
- Standard base addresses COM1-COM4
- Custom base addresses possible
- Interrupts IRQ3-IRQ7, IRQ9-IRQ12
- UART 16550 with FIFO
- 1kV electrical isolation to the PC and between the ports
- Software compatible with standard RS232 cards
- No additional driver software required
- Conforms to standards both in office and industrial environments:
- Increased noise immunity for industrial areas
- Stricter noise emission for residential and commercial areas
