| Model: | ml8021 |
|---|---|
| Brand: | mellow |
| Origin: | Made In China |
| Category: | Computers & AV Digital / Network Hardware & Parts |
| Label: | gsm module , gsm modem , gprs modem |
| Price: |
US $45
/ set
|
| Min. Order: | 1 set |
| Live Chat: | Last Online:08 Apr, 2015 |
External GPRS GSM Modem ML8021 is a Quad-band GSM/GPRS engine that works at frequencies GSM850MHz, GSM900MHz, DCS1800MHz and PCS1900MHz.
The ML8021 features GPRS multi-slot class 12 and supports the GPRS coding schemes CS-1, CS-2, CS-3 and CS-4.
The ML8021 is integrated with Internet service protocols, which are TCP/UDP, FTP and HTTP.
Extended AT commands have been developed for customer to use these Internet service protocols easily. The modules are fully RoHS compliant to EU regulation.
Technical Parameters
|
Feature |
Implementation |
|
Power supply |
Single supply voltage 5.0V – 12V, |
|
Frequency bands |
Quad-band: GSM850, GSM900, DCS1800, PCS1900. The module can search these frequency bands automatically The frequency bands can be set by AT command. Compliant to GSM Phase 2/2+ |
|
Transmitting power |
Class 4 (2W) at GSM850 and GSM900 Class 1 (1W) at DCS1800 and PCS1900 |
|
GPRS connectivity |
GPRS multi-slot class 12 (default) GPRS multi-slot class 1~12 (configurable) GPRS mobile station class B |
|
Temperature range |
Normal operation: -35°C ~ +80°C Restricted operation: -45°C ~ -35°C and +80°C ~ +85°C 1) Storage temperature: -45°C ~ +90°C |
|
DATA GPRS:
CSD: |
GPRS data downlink transfer: max. 85.6 kbps GPRS data uplink transfer: max. 85.6 kbps Coding scheme: CS-1, CS-2, CS-3 and CS-4 Support the protocols PAP (Password Authentication Protocol) usually used for PPP connections Internet service protocols TCP/UDP/FTP/HTTP/MMS Support Packet Switched Broadcast Control Channel (PBCCH) CSD transmission rates: 2.4, 4.8, 9.6, 14.4 kbps non-transparent Unstructured Supplementary Services Data (USSD) support |
|
SMS |
MT, MO, CB, Text and PDU mode SMS storage: SIM card |
|
FAX |
Group 3 Class 1 and Class 2 |
|
SIM interface |
Port SIM card: 1.8V, 3V, Protected against ESD with a TVS diode array. |
|
Serial interface |
Support from 4800 bps to 115200 bps, default auto baud rate Support TTL/RS232/RS485 Embed standard AT command(GSM07.05 and 07.07) |
|
Phonebook management |
Support phonebook types: SM, FD, LD, RC, ON, MC |
|
SIM Application Toolkit |
Support SAT class 3, GSM 11.14 Release 99 |
|
Physical characteristics |
79*53*21mm |
