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DTU- CM3161

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Feature
1, Remote wakening: support the wakening ways like SMS, voice, data and disconnection overtime
2, Support dual data centers backup and multiple data centers (8) to receive data; it can support the maximum number 256 of sending centers
3, Support serial port software upgrade
4, Support LINUX, UNIX and WINDOWS operating system at the same time
5, Improved network support: support including 2G network (GSM network), 2.5G network (GPRS network), 2.75G network (EDGE network), 3G network (WCDMA network, EVDO network, TD-SCDMA network), 4G network (HSPA+ network, LTE network), all networks supported
6, Abundant interfaces: provide RS232 interface or RS485 interface or TTL interface or RS422 interface or USB interface, all interfaces supported
7, Support fixed IP communication mode: support DDNS dynamic domain name communication mode
8, TCP transparent data transmission and UDP transparent data transmission; support multiple operating modes
9, Intelligent anti-dropped, support online testing, online maintenance, automatic re-dial, ensure the equipment is always on-line

Model No. CM3161 (GPRS)
Cellular Parameters  
Item Content
Cellular GPRS/GSM
Standards and frequency bands Support EGSM900/GSM1800MHz dual-band,
Support GSM phase 2/2+
Support GPRS multi-slot class 10, class 12 optional
Coding scheme CS1~CS4
Communication bandwidth Theoretical bandwidth: 171.2Kb/s; practical bandwidth: 100Kbits>X> 20Kbits
Transmit power GSM850/900:<33dBm;GSM1800/1900:<30dBm
Receiver sensitivity <-107dBm
Hardware system  
Item Content
CPU Industrial high-performance embedded processor; with cache, high-speed cache data speed up data access, high-speed instruction cache, enhanced instruction processing speed
MMU CPU with MMU memory management unit, can prevent memory overflow
Flash 64Mbits (expandable to 256Mbits) have enough memory to store programs and data (the actual type shall prevail)
SDRAM 256Mbits (expandable to 2048Mbits), a large enough cache to improve system operation speed (the actual type shall prevail)
Operating System  
Item Content
Operating System Using LINUX2.6.28 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/RS485
Data bit: 8 bit
Stop bits: 1 bit
Parity:none/odd/ even/blank/MARK
Serial speed: 300bps ~ 115200bps
Flow Control: None flow control, RTS / CTS hardware flow control or XON / XOFF software flow control
GPIO "RX","TX","GND","RS485A","RS485B","GND","IO1","IO2"(IO reversed)
Indicator With power, ACT communication and online indicator
Antenna Interface Standard SMA female interface,50ohm; 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 terminal
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 DC9V/1.5A
supply
Current while Communicating Average communication current : 350mA @ +9 VDC;
Communicating instantaneous peak current: 1.0A @ +9 VDC
Standby current Standby average current: <35mA @ +9 VDC
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 IP41; particularly suit for harsh industrial control environments
Product dimensions 92x62x22 mm100x63x24.3 mm(not including the antenna and the fixed parts)
(the actual type shall prevail)
Packing Size 298x226x60mm (the actual type shall prevail)
Weight 0.41kg (the actual type shall prevail) 0.24kg
Other parameters  
Item Content
Operating -25ºC ~+65ºC
Temperature
Extended operating temperature -35 ºC~+75ºC
Storage Temperature -40~+85ºC
Relative Humidity 95%(No condensation)