SIM928A module is a compact Quad-Band GSM/GPRS-enable module base on PNX4851 platform which is also equipped with GPS technology for satellite navigation. The complete design in a SMT type makes it easy to integrate GSM/GPRS&GPS as an all-in-one solution.

General features

Quad-Band GSM 850/900/18001900MHz
GPRS multi-slot class 10
GPRS mobile station class
Compliant to GSM phase 2/2+
Class 4 (2 W @ 850/900 MHz)
Class 1 (1 W @ 1800/1900MHz)
Control via AT commands
(3GPP TS 27.007 and SIMCom enhanced AT Commands)
SIM application toolkit
Supply voltage range:
GPRS: 3.2 ~ 4.8 V
V-GPS: 2.8 ~ 4.3V
VCHG: 5V
Low power consumption
Dimensions: 30*30*3.0mm
Weight: 5.3g

Specifications for data transfer

GPRS class 8/10: max. 85.6 kbps (downlink)
PBCCH support
Coding schemes CS 1, 2, 3, 4
PPP-stack
Integrated TCP/IP stack

Specifications for CSD data

CSD up to 14.4 kbps
USSD
Non transparent mode

Specifications for audio

Tricodec
Half rate (HR)
Full rate (FR)
Enhanced Full rate (EFR)
Hands-free operation
Echo cancellation