RS-232/TTL USART Repeater & Isolator


IP Electronix PH232Y11 is a Bi-Directional RS-232/TTL UART Repeater and Isolator and Amplifier. It works with Baud-Rate from 300bps to 230400bps. This device adds up to 3kV optical and electrical insulation between the two RS-232 sides, which eliminates noise from the RS-232 path. Also, if a length of more than 15m is required for the RS-232 line, by adding one PH232Y11, the length of the RS-232 cable can be increased up to at least 30m, i.e., 15m meters on each side. Also, due to having the TTL ports, PH232Y11 can be connected directly to a microcontroller system.

Protection against Surge, ESD and EMI is considered in its design and also there is 3kV Electrical and Optical insulation between RS-232/TTL UART sides.

PH232Y11 is designed for industrial usage and is useful for Industrial Automation, Telecommunications, SCADA Systems, DCS Systems and …


  • RS-232 Repeater, Isolator and Amplifier;
  • Number of Ports: #1 RS-232/TTL UART to #1 RS-232 Bi-Directional Repeater;
  • Serial Standard: Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards;
  • RS-232 Signal (Full Flow Control Support): TxD, RxD, DTR, RTS, DSR, DCD, CTS, RI, GND;
  • RS-232 Parity: Even, Odd, None, Mark and Space;
  • Fully Plug & Play;
  • Wide Range Power Supply: +8V to +48V DC;
  • Serial Transmission Speed up to 230.4 kbps;
  • Power (Green) LED Indicator;
  • Transmit (Blue) and Receive (Yellow) LED Indicator;
  • Isolation Protection: 3kV Instantaneous, 500V DC Continuous;
  • Surge Protection: Embedded 1500W Surge Protection;
  • Magnetic Isolation:5 kV Built-in;
  • ESD Protection: RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM);
  • Dimensions: 26mm x 71.6mm x 122 mm (1.03in x 2.8in x 4.82in);
  • Operating Temperature: -10°C to +70°C (+14°F to +158°F);
  • 1 Year Guarantee and 5 Years Support.

User's Manual Data Sheet