Industrial Optically Isolated RS-232 to RS-485/422 Converter


Industrial Optically Isolated RS-232 to RS-485/422 Converter

The industrial converter is designed to convert RS-232 signals to optically isolated, balanced, full or half-duplex RS-422 or RS-485 signals at baud rate up to 115.2Kbps. It features remote RTS control design, which allows software to control RS-485 transmission. With smart ADCTM (Auto Data Control) design, the converter can uses send data signal to control RS-485 transmission automatically so no software control is required in RS-485 mode. The Din-rail mountable design makes it ideal for industrial cabinets and enclosures. Further, more designs such as signal protection, wide operating temperature range, wide power voltage range are provided to suit for more industrial applications.


Key Features:

  • Supports RS-232 baud rate up to 115.2Kbps
  • Operation with no required configuration
  • Provides surge protection (transient voltage)  on all interface lines
  • Provides high ESD protection on all line signals
  • Provides optical isolation between RS-232 and RS-485/422
  • Supports RS-422, 2-wire RS-485, and 4-wire RS-485 network
  • Supports full-duplex or half-duplex for RS-485/422 interface
  • Provides selectable remote RTS control for RS-485 transmission
  • Provides ADCTM (Auto Data Control)  for RS-485 transmission
  • Designed for industrial environments with:

          – Surge, ESD, and isolation protection                                                        

          – DIN-rail and panel mounting support

          – Wide power voltage range support

          – Terminal block and Jack-type power connectors

          – Wide operating temperature range support

          – Alarm relay output for device power failure

          – Industrial-rated emission and immunity performance

RS-232 Connector DB9 Female, DCE
RS-232 Signals TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS-422/485 Connector 5 positions plug-in screw terminal block
Data Rate up to 115.2Kbps
Surge Protection Transient voltage outside +/-28V
Line ESD Protection +/-15KV
Isolation Optical isolated between RS-232 and RS-485/422
3000VDC rms
LEDs Power status,
RX-232 Transmission, RS-232 Receiving,
RS-485 TX Control
Configuration Switches RS-422/RS-485 selection
2-wire/4-wire selection
Built-in bus termination & bias
RS-485 TX/RX control selection
ADC control timing settings
RS-485 Bus Control RTS control (by DTE software RTS control)
ADC (by DTE send data) control
DC Power Input Screwed terminal block: 2 pairs of +/- contacts
1 pair of power alarm relay output contacts
DC jack: -D 6.3mm/+D 2.0mm
Operating voltage range: +7 ~ +30VDC
Power consumption: 0.6W @+7.5V
Dimension 28 x 82 x 95 mm (WxDxH)
Weight 240g
Housing Enclosed metal with no fan
Mounting Support DIN-Rail mounting, Panel mounting
Environment Operating Temperature: -20°C ~ 70°C
Storage Temperature: -20°C ~ 85°C
Relative Humidity: 5% ~ 95% non-condensing
Approval FCC Class B, CE mark Class B, EN60950-1 safety