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.
Table 1 Module key features
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°C1) ● 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) |
Phonebookmanagement | 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 |
