RTU With Lan Modem

Product Description

Model No.	CM550-52G(GPRS)
Cellular Parameters:
Item	Content
Cellular	GPRS/GSM
Standards and Frequency Bands	Support EGSM900/GSM1800MHz dual band, GSM800/900/1800/1900MHz four band (optional). Support GSM phase 2/2+ Support GPRS multi-slot class 10. Class 12(optional)
Coding Scheme	CS1~CS4
Communication Bandwidth	the theory of broadband 171.2Kb/s the actual broadband 100Kbits>X>20Kbits/s
Transmit Power	GSM850/900<33dBmGSM1800/1900<30dBm
Receiver Sensitivity	<-107dBm
Hardware system:
Item	Content
CPU	Industrial CPUstable and reliable performance
MMU	CPU with MMU memory management unit, can prevent memory overflow exception
Flash	64Mbits, a large enough memory to store programs and data
SDRAM	256Mbits, a large enough cache to improve system operation speed
Operating System:
Item	Content
Operating System	Using LINUX2.6 operating system with memory management unit and real-time feature, upgrades is very fast and system is stable;
Interface Type:
Item	Content
Serial port	1 RS232 serial port (supports RS422/TTL)
	Data bits: 5,6,7,8 bit
	Stop bits: 1, 1.5,2 bit
	Parity: none, odd , even , space and mark
	Baudrate: 110bps ~ 115200bps
Ethernet	1xLAN(One 10/100 Base-T Ethernet ports), Ethernet IEEE 802-3, 802-2; built-in 1.5KV magnetic isolation protection.
USB	1xUSB, USB2.0, HOST interface, speed at 12Mbps
Indicator	POWER, Link / ACT,COMM and ONLINE
Antenna Interface	Standard SMA female interface, 50 ohm; optional 3M/5M/10M/15M antenna extension cable, meet the different needs of customers.
UIM interface	1.8V/3V/5V standard putter user card interface, built-in 15KV ESD protection
Power Interface	Block interface,power supply over-voltage protection and reverse current protection.
Analog input	Resolution:16 bit,input voltage(-10V-+10V),input current(0-20mA),sampling rate(1.365kSPS),Accuracy0.5% or better
Switch input	Input range(0-3.3V low level,5-30V high level)conatins all the way count function(1KHz)
Relay output(dry contact)	Drive ability 5A/30VDC,5A/250VAC
Optocoupler digital output	Open collector output,Max 30V,max current 40mA,Max power 125mW
Optocoupler PWM output	Open collector output,Max 30V,max current 40mA,Max power 125mW,output frequency 0-1KHz,adjustable duty cycle
Power supply
Item	Content
Supply voltage	Wide voltage design, DC 7V to the DC32V power supply directly to the device; and built-in power supply over-voltage protection and reverse current protection
Standard power supply	DC9V/1.5A
Current while Communicating	Average communication current :200mA @ +9 VDC;
	Communicating instantaneous peak current: 1.0A @ +9 VDC
Standby current	Standby average current0.15A@+9VDC
Physical features:
Item	Content
Shell	Metal shell: metal case, anti-radiation, anti-interference; shell and system security isolation, lightning protection design; meet the power requirements of safety regulations; protection rating IP30; particularly suit for harsh industrial control environments.
Product Dimensions	167*104*26mm(not including the antenna and the fixed parts)
Packing Size	350*215*88mm
Weight	0.52Kg
Other parameters:
Item	Content
Operating Temperature	-25C ~+75C
Storage Temperature	-40~+85C
Relative Humidity	95%(No condensation)

Versatile Connectivity and Communication

This RTU is equipped with flexible connectivity options such as Ethernet (LAN), RS232/RS485, and cellular modem support (GSM/GPRS/3G/4G). With protocols like Modbus TCP/IP and Modbus RTU, it can communicate seamlessly with various remote sensors, PLCs, and metering devices. The product features easy-to-use interfaces and allows multiple networking scenarios to suit different industrial infrastructure requirements.


User-Friendly Operation and Monitoring

Integrated LED indicators for power, status, link, and TX/RX enable instant visual diagnostics. Data logging is available via internal storage or an SD card option, providing redundancy and reliable event history. With panel and DIN rail mounting options, installation is straightforward and adaptable for a range of environments. The RTUs compact design ensures space efficiency without compromising on performance.


Reliable Performance in Harsh Environments

Manufactured with ABS and metal enclosure, the RTU is designed to withstand demanding conditions. It operates efficiently between -20C and +70C, stores data securely from -40C to +85C, and resists 1095% RH non-condensing humidity. Compliance with CE and RoHS standards ensures safety and environmental reliability, making it suited for diverse industrial uses.