
IPEX (IP Electronix) PH422REPi
Page 4 of 8 Doc No. : PH422REPi-UM-001
15 August 2013
1Introduction
IPEX PH422REPi™ is a RS-422 Repeater and Amplifier. If it is needed to have RS-422 network with more than
1200m length or to have more than 32 nodes, using a PH422REPi™ helps you to increase the network length up
to 2400m and also to have up to 64 devices connected to it. PH422REPi™ is compatible with RS-422 standard
devices differential TX+, TX-, RX+ and RX- signals and is fully Plug & Play. It works with a wide range of +10V up
to +30V DC power supply with low (about 45mA) consumption. PH422REPi™ is designed for industrial usage
and is useful for Industrial Automation, Telecommunications, SCADA Systems, and DCS Systems …
Protection against Surge, ESD and EMI is considered in its design and also has 3kV isolation between RS-422
sides. PH422REPi™ is Full-Duplex converter and supports Point-to-Point and Multidrop RS-422 network
topologies.
2Specifications
RS-422 Bidirectional Repeater and Amplifier
Fully Plug & Play
RS-422 Signal: TX+, TX-, RX+, RX- and GND
Baud Rate Type: Auto Switching Baud Rate
Serial Transmission Speed Up to 230.4 kbps
Maximum Communication Distance: 2400m (8000 feet) – 1200m for each side
Loading: Supported up to 64 Nodes – 32 Nodes for each side
Isolation Protection: 3kV Instantaneous, 500V DC continuous
Power (Green) LED Indicator
Transmit (Blue) and Receive (Yellow) LED Indicator
Power Supply Input Voltage: +10VDC to +30VDC
1 Year Guarantee and 5 Years Support
Operating Temperature: -10°C to +70°C (+14°F to +158°F)