Linkwise Technology Pte Ltd REX User Manual
Chapter 3: Product Overview
REX is a standalone device built around a 32 bit micro controller. It has a built-in 3G modem along with
associated circuity like switching power supply, optically coupled digital inputs, relay outputs, indicators, etc.
REX is IP based (Internet Protocol), comes with user friendly web user interface and powerful feature set.
Features
Table 3.1 shows the product features of REX.
Physical
Operating Voltage 12 to 24VDC, 3W max power consumption
Processor 32 bit high speed micro controller
Cellular modem UTMS 900/2100 (3G), GSM 900/1800 (2G)
Humidity 0 - 90% non condensing
Operating Temperature 0 - 55 degree Celsius
Physical size 70 (L) x 110 (H) x 60 (D) mm
Weight 200 gm
Mounting
Industrial standard ABS housing with Din rail mounting, Pluggable
3.5 mm screw terminal block
Connectors 4way and 18way 3.5mm Plug gable Connector
Security Feature 2 Level security, Administrator and User level
Date & Time Support NTP server time zone synchronization
Real Time Clock Date time with Super cap backup
LED Indicators
PW = Power, MR = Modbus Receive, MT = Modbus Transmit, ETH
= Ethernet, TC = Telco Status, X1-X8 = Digital Inputs, Y1-Y2 =
Relay Outputs, A1-A2 = Analog Inputs
Communication port 1 x RJ45 port, Ethernet 10/100Mbit
Interface HTML interface, accessible via web browser software
Network
Network support Static and Dynamic IP support
Network protocol
a) TCP (Transmission Control Protocol)
b) IP (Internet Protocol)
c) HTTP (Hyper Text Transfer Protocol)
Digital Input
No of Input points 8 optically coupled dry contacts digital inputs, onto-isolated
Configuration
Independent configuration of input description, open/close status
description
Relay Output
No of Output points 2 relay outputs, contact rated at 24 VDC 1A
Configuration User defined output description
Output control Through SMS or locally On / Off relay outputs through web browser
Analog Input
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