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These
converters provide RS232, RS422 and RS485 connectivity (with galvanic
isolation) to computers through USB port. Product Photos:
Converter Specifications: ·
Three different
interfaces supported: RS232, RS422, RS485. ·
RS232 interface
includes 3 signals (RxD, TxD, RTS) and GND connection. ·
RS422 interface
includes 4 signals (Tx+, Tx-, Rx+, Rx-) and GND connection. ·
RS485 interface
includes either 4 (Tx+, Tx-, Rx+, Rx-) or 2 (TxRx+, TxRx-) signals and GND
connection. ·
Galvanic isolation
(1000VDC) between USB side and RSxxx side. ·
USB driver for
Windows included. ·
Communications
speeds: a. For RS232: up to 115200 baud. b. For RS4xx: up to 921600 baud. ·
Rx and Tx LED
indications. ·
No external power
supply needed. ·
Options (factory
settings) for RS422: a. Termination resistor (120 Ohm) connected or not
connected. ·
In case of RS422,
both Rx and Tx are always enabled. ·
Options (factory
settings) for RS485: a. 4 wire or 2 wire interface. b. Echo ON or OFF. c. Termination resistor (120 Ohm) connected or not
connected. ·
In case of RS485, Rx
and Tx will be conditionally enabled: a. Tx is automatically enabled during transmission.
When transmission completes, Tx is automatically disabled. No action by
Software needed for this direction control. b. If echo is ON, then Rx is always enabled. c. If echo is OFF, then Rx is disabled while
transmission is going on; enabled at all other times. No action by Software
needed for this direction control. ·
RS485 4 wire and 2
wire options: If 4 wire option is selected, then Tx+, Tx-, Rx+, Rx- signals
become available separately on connector. If 2 wire option is selected, then
Tx+ is internally short circuited with Rx+; similarly Tx- is internally short
circuited with Rx-. As a result, TxRx+, TxRx- are available on connector. A 4
wire converter can be used as 2 wire by short circuiting Tx+,Rx+ and Tx-,Rx-
signals externally. However, a 2 wire converter can not be used as 4 wire by
any means. ·
Operating Temperature
Range: 0°C to +70°C. |
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