RTU Modem

About RTU Modem

Our strength lies in our proficient team of engineers and dexterous workforce, helps us in manufacturing and supplying RTU Modem. It is used in all kinds of remote monitoring and controlling application. We manufacture this modem under the firm guidance of expert supervisors using high quality materials and components. It is applicable in most system integrators and automation engineering. Highly demanded in the market, this RTU Modem comes in different specifications. We offer this modem at affordable prices.

Features:

• Easy to set up
  
• Over-voltage protection
• Built-in 1.5KV magnetic isolation protection

Model No.	CM550-51G(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 the actual broadband 100Kbits>X>20Kbits/s
Transmit Power	GSM850/900<33dBm, GSM1800/1900<30dBm
Receiver Sensitivity	<-107dBm
Hardware system:
Item	Content
CPU	Industrial CPU-stable 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.(optional)
USB	1xUSB, USB2.0, HOST interface, speed at 12Mbps (optional)
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 current 0.15A@+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	-25oC ~+75oC
Storage Temperature	-40~+85oC
Relative Humidity	95%(No condensation)

Industrial-Grade Reliability

Constructed from ABS industrial-grade plastic and rated IP30, this RTU Modem is built to withstand harsh environments and challenging operating conditions, making it ideal for factories, utilities, and other industrial facilities. With a wide operating temperature range from -30C to +70C and non-condensing humidity tolerance up to 95% RH, long-term durability and stable performance are assured.


Flexible Mounting & Connectivity Options

Installation is simplified with both DIN Rail and wall mounting options, allowing seamless integration into diverse control panels or enclosures. Multiple interface types, including RS232, RS485, Ethernet (RJ45), and screw terminal connections, provide extensive compatibility for various automation and SCADA systems.


Enhanced Security and Remote Management

The modem incorporates a built-in watchdog and firewall to safeguard data transmission and system integrity. Remote and FOTA (Firmware Over The Air) upgrades streamline maintenance, ensuring devices stay up to date and reducing the need for onsite interventions.