RS-485/RS-422 Repeater & Isolator


IP Electronix PH485Y11 is a RS-485 and RS-422 Repeater and Isolator. If it is needed to have RS-485/RS-422 network with length more than 1200m or to have more than 32 nodes, using a PH485Y11 helps you to increase the network length up to 2400m and also to have up to 64 devices connected to it. PH485Y11 is compatible with RS-485 standard devices differential Data+ & Data- signals and is fully Plug & Play. It works with a wide range of +8V up to +48V DC power supply with low (about 1W) consumption.

Since RS-485 is a Half-Duplex standard, switching between transmit and receive is done automatically and no further signal (such as RTS) is required. PH485Y11 supports Point-to-Point and Point-to-Multi Point Party Line network topologies.

Protection against Surge, ESD and EMI is considered in its design and also has 3kV insulation between RS-485/RS-422 sides, so PH485Y11 is good for industrial usage and is useful for Industrial Automation, Telecommunications, SCADA Systems, and DCS Systems …


  • RS-485/422 Repeater, Isolator and Amplifier;
  • Number of Ports: #1 RS-485/422 to #1 RS-485/422 Bi-Directional Repeater;
  • Serial Standard: Meets or Exceeds the Requirements of RS-485/422 Standards;
  • RS-485 Signal: Data+, Data-, GND;
  • RS-422 Signal: TX+, TX-, RX+, RX-, GND;
  • RS-485/422 Parity: Even, Odd, None, Mark and Space;
  • Maximum Communication Distance: 2400m (1200m each side);
  • Loading: RS-485 and RS-422 Side up to 32 Nodes are supported;
  • 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: 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