SIM508

This document describes the hardware interface of the SIMCOM SIM 508 module that connects to the specific application and the air interface. As SIM508 can be integrated with a wide range of applications, all functional components of SIM 508 are described in great detail.This document can help you quickly understand SIM 508 interface specifications, electrical and mechanical details. With the help of this document and other SIM 508 application notes, user guide,you can use SIM508 module to design and set-up mobile applications quickly.

Designed for global market, SIM508 is a Tri-band GSM/GPRS engine that works on frequencies GSM 900 MHz, DCS 1800 MHz and PCS1900 MHz and supports also GPS technology for satellite navigation. SIM 508 provides GPRS multi-slot class10 / class 8 (option) capabilities and supports the GPRS coding schemes CS-1, CS-2, CS-3 and CS-4.With a tiny configuration of 55mm x 34mm x 3.0 mm, SIM508 can fit almost all the space requirement in your application, such as Smart phone, PDA phone, GPS hand-held device and other mobile device, or applications of AVL (Automated Vehicle Location), location service and so on.

The physical interface to the mobile application is made through a 80 pins board-to-board connector, which provides all hardware interfaces between the module and customers' boards except the RF antenna interface.With the charge circuit integrated inside the SIM508, it is very suitable for the battery power application.SIM 508 provide GSM RF antenna interface with two alternatives: antenna connector and antenna pad. The antenna connector is MURATA MM9329-2700. And customer's antenna can be soldered to the antenna pad. A separate GPS antenna must be connected to the GPS part of the module in order to properly receive satellite data.The SIM 508 is designed with power saving technique, the current consumption of GSM part maintains as low as about 3mA in SLEEP mode.The SIM508 is integrated with the TCP/IP protocol,Extended TCP/IP AT commands are developed for customers to use the TCP/IP protocol easily, which is very useful for those data transfer applications.