Interface 232/485 converter

The converter of the interface is the bidirectional converter of the standard RS-232 interface in the standard RS485 interface. The standard of the RS-485 interface keeps in half-duplex contact. Automatically defines the direction of a flow of information and switches the direction of reception/transfer.

Features and Specification

· Input and output:

• RS-232 (3-wire line)

· RS-232 interface connector:

DRB-9F

· Input and output:

• RS-485 (2-wire line).

· RS-485 interface connector:

• Terminal connector

· Communication:

• speed (bps): 1200, 2400, 4800, 9600, 19.2 K, 38.4 K, 57.6 K, 115.2 K

• RS-485 way of data management: automatic

• maximum length of the communication line: 1.2 km.

• asynchronous format of data: 1 starting bits, 8 bits of data, 1 stop bit, without parity control

• the resistor of coordination of loading which is built in 120 Ohms (is chosen jumpers)

• in one network it can be switched on up to 32 devices with the RS-485 interface

· Requirements to the power supply:

• the external power supply of constant tension is required.

• the entrance tension of the module on a power-supply circuit: + 10B … + 30B

• the module is protected from a polarity reversal of entrance tension

· Isolation:

• 1000 VDC

· Consumption:

• 1.4 W

· State indicators, diagnostics

• the LED indicator of presence of the feeding tension

· Size:

• 70 x 86 x 60 (mm)

· Case:

• plastic, desktop option or spetsiaotny under a DIN lath

· Service conditions:

• working temperature: -20 ° ~ +50 °C

• storage temperature: -30 ° ~ +85 °C

• humidity: 5% ~ 95%, without condensation