Wireless Access Point ISM-Band & GSM

Introduction

The Wireless Access Point ISM-Band & GSM is as the name says, is a wireless access point for ISM (433MHz / 868MHz)
and GSM, it is designed to be used for multiple purposes, currently it is being used as an extension for the
FHCS - Floor Heat Control System.

The unit is being used to communicate with various sensors via the RF channels available, which then is parsed on to
the LAN network, furthermore it is possible to send / receive status and control via SMS.

The GSM module is also being used to provide a IVR - Interactive Voice Response which is able to provide system status,
an control commands, all the possible voice responce is stored in the onboard spiflash compressed as MP3 data,
a free software MP3 decoder is being used to decompress the audio on playback.

As a safety precaution a build in whitelist for SMS/IVR control is provided to avoid unwanted access to the system.


Features:
- Power supply DC: 12 VDC.
- Freescale Kinetis K10 - 120MHz, 1MB FLASH, 1MB SRAM, 8MB SPIFlash.
- 4 x SI4463 transceiver which consists of 2 x 433Mhz / 2 x 868MHz up to 1000 Kb/s up to 30 dBm.
- 1 x GSM/GPRS module 900MHz/1800MHz up to 33 dBm.
- 8 KB Seriel EEPROM.
- 10Mb Ethernet.
- Real Time Clock.
- RS232 (Console).
- RS485.
- 5 x SMA female connector F/external antenna.
- JTAG connector.
- Extension connector (F/TFT + Touch GUI interaction).
- PCB size: 70x150 mm.


Hardware