Model 8322 - RS-232 to RS-422/RS-485 Optically Isolated Interface Converter

• Switch-Selectable RS-422 or RS-485 Operation
• 4 Wire-Master/Slave Operation
• Active Mode Control Via RTS or Data
• Opto Isolation
• Built-in Power Supply
• Internal Microcontroller
• 38.4 KBPS or 115.2 KBPS Data Rate
• DIN Rail Mountable
• Programmable Terminations

Product Description

The Model 8322 RS-232 to RS-422/RS-485 Interface Converter allows information exchange in full or half-duplex mode over two twisted pair cables. This conversion is accomplished while maintaining optical isolation between the ports. Dip switches are used to select RS-232 to RS422 or RS-232 to RS-485 operating modes. The unit may be mounted on our DIN rail system.

The Model 8322 has one RS-232 I/O configured in DCE mode enabling the reception of data circulating on the receive pair (RS-422 or RS-485 side) or the transmission of data towards the RS-422 or RS-485 transmit pair.

The Model 8322 includes TD and RD LED’s as well as a built-in power supply. The power input is standard for 110 V/60 Hz or 220 V/50 Hz as an ordering option. All the inputs and outputs are via screw terminals located on the top surface of the device.

A full complement of dip switches are provided to select operation mode, data rate, byte format, master/slave configuration as well as pull up and pull down resistors on all received data lines as well as terminal loads for transmitters and receivers. The user also as the ability to configure the grounding scheme for the four wire links.