ww
w
.ip
el
ec
tr
on
ix
.c
om
IPEX
(IP Electronix)
PH485REPi
:
User’s Manual
Page 4 of 8
Doc No. : PH485REPi-UM-001
15 August 2013
1
Introduction
IPEX
PH485REPi™
is a RS-485 Repeater and Amplifier. If it is needed to have RS-485 network with more than
1200m length or to have more than 32 nodes, using a PH485REPi™ helps you to increase the network length up
to 2400m and also to have up to 64 devices connected to it. PH485REPi™ is compatible with RS-485 standard
devices differential Data+ & Data- signals and is fully Plug & Play. It works with a wide range of +10V up to +30V
DC power supply with low (about 40mA) consumption. PH485REPi™ 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-485
sides. 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. PH485REPi™ supports Point-to-Point and Point-to-Multi Point Party
Line network topologies.
2
Specifications
RS-485 Bidirectional Repeater and Amplifier
Fully Plug & Play
RS-485 Signal: Data+, Data-, 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)