STS-1915SI - RS-232 To RS-422/485 Converter w/Surge & Isolation Protection, (Includes Power Adapter)

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RS-232 To RS-422/485 Converter w/Surge & Isolation Protection, (Includes Power Adapter)

Antaira Technologies STS-1915SI is a RS-232 to RS-422/485 serial converter. Designed to work as either a client or server, the STS-1915SI is able to provide RS-422/485 serial communication through the standard RS-232 port. The STS-1915SI has the added benifit of surge and isolation protection. The surge protetion is up to 500 watts and isolation protection up to 1500Vrms

The STS-1915SI is equipped with a standard DB9 female connector and serial terminal block for flexible wiring. The serial converter can be either powered by the RS-232 line voltage or a USB to barrel 5VDC input jack.

The STS-1915SI can convert between unbalanced RS-232 full-duplex signals to balanced RS-422/485 full or half duplex signals. The RS-485 serial is able to be configured in either a two or four wire configuration. The serial converter is compatible with both new and legacy RS-422 and RS-485 devices. The STS-1915SI is easy to install and does not require the user to power cycle the computer, preventing downtime.


  • Easy RS-422/485 Conversion from RS-232 Port
  • Supports 4-wire RS-422 , 2-wire and 4-wre RS-485 applications
  • Supports RS-485 Auto Transceiver Turn Around With the Unique Featured ATTA?v Hardware
  • Automatic Baud Rate Detection
  • DB9-Female (RS-232) to 5-pin Terminal Block Connector Conversion
  • Compact Size for Critical Applications
  • No Driver Required for All Operating Systems
Ports 1 x RS-422/485
Baud Rate Automatic Baud Rate Detection
Power Requirement 5V/30mA (RS-232 Line Powered)
Signals RS-232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS-422: TxD+, TxD-, RxD+, RxD-, GND
RS-485 (2-wire): Data+, Data-, GND
RS-485 (4-wire): TxD+, TxD-, RxD+, RxD-, GND
Operating Temperature 0 ~ 57 °C
Storage Temperature -20 ~ 85 °C
Humidity 5 ~ 95% RH
Surge Protection 500W
Isolation Protection 2500Vrms
Connector DB9 Female, 5-pin Terminal Block
Warranty 5 Years
Brand Antaira