| Model No. |
CM520-81G(GPRS) |
| Cellular Parameters |
|
| Item |
Content |
| Cellular |
GPRS/GSM |
| Standards and frequency bands |
Support EGSM900/GSM1800MHz dual-band, quad-band
GSM800/900/1800/1900MHz optional |
| Support GSM phase 2 / 2 + |
| Supports GPRS multi-slot class 10, class 12 optional |
| Coding scheme |
CS1~CS4 |
| Communication bandwidth |
Theoretical bandwidth: 171.2Kb / s; actual bandwidth: 100Kbits> X> 20Kbits / s |
| Transmit power |
GSM850/900：<33dBm；GSM1800/1900：<30dBm |
| Receiver sensitivity |
<-107dBm |
| Function support |
Support data, voice, SMS and fax |
| Hardware system |
|
| Item |
Content |
| CPU |
Industrial high-performance embedded ARM9 processing; 200MPS; with 16KB Dcache, high-speed cache data speed up high-speed data access with 16KB Icache, high-speed instruction cache enhanced instruction processing speed. |
| MMU |
CPU with MMU memory management unit, can prevent memory overflow exception. |
| Flash |
64Mbits (expandable to 256Mbits) have enough memory to store programs and data. |
| SDRAM |
256Mbits (expandable to 2048Mbits), a large enough cache to improve system operation speed. |
| Operating System |
|
| Item |
Content |
| Operating System |
Using real-time operating system with memory management unit, real-time, fast, stable. |
| Interface Type: |
|
| Item |
Content |
| Ethernet port |
1xLAN(One 10/100 Base-T Ethernet ports), Ethernet IEEE 802-3, 802-2; built-in 1.5KV magnetic isolation protection. |
| Serial port |
1 RS232 serial port or 1 RS485 interface (supports RS422/TTL) |
| Bytesize: 7,8 bit |
| Stopbits: 1, 2-bit |
| Parity: no parity, odd parity, even parity, SPACE and MARK parity |
| Baudrate: 110bps ~115200bps |
| Flow Control: None flow control, RTS / CTS hardware flow control or XON / XOFF software flow control. |
| 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 |
Standard 3-pin power jack |
| Power supply： |
|
| Item |
Content |
| Supply voltage |
Wide voltage design, DC 5V 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 : 390mA @ +9 VDC;
|
| instantaneous peak current: 1.0A @ +9 VDC |
| Standby current |
average current: <56mA @ +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 IP30; particularly suitable for harsh industrial control environments. |
| Product dimensions |
195 * 121 * 30mm (not including the antenna and the fixed parts) |
| Packing Size |
298x226x60mm |
| Weight |
0.7kg |
| Other parameters: |
|
| Item |
Content |
| Operating Temperature |
-25ºC ~+65ºC |
| Extended operating temperature |
-35 ºC~+75ºC |
| Storage Temperature |
-40~+85ºC |
| Relative Humidity |
95%(No condensation) |
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