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SQ864

GPRS Terminal

Hardware reference manual

Rev 2.1.4

Sales: +44 (0) 118 967 9000
Fax:

+44 (0) 118 976 9020

www.sequoia.co.uk

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Содержание SQ864

Страница 1: ...SQ864 GPRS Terminal Hardware reference manual Rev 2 1 4 Sales 44 0 118 967 9000 Fax 44 0 118 976 9020 www sequoia co uk...

Страница 2: ...232 5 6 SIM Socket 5 7 Antenna 5 7 1 Antenna Placement 5 7 1 Antenna Connection Cable 6 Power Consumption 7 Switching the SQ864 GPRS Terminal ON and OFF 8 Dimensions 8 1 Top View 8 2 Serial Connector...

Страница 3: ...976 9020 www sequoia co uk Rev 2 1 4 Jan 2011 Wireless Technology Experience The Freedom 3 Definitions Term Definition USB Universal Serial Bus VSWR Voltage Standing Wave Ratio SMA Sub Miniature versi...

Страница 4: ...ED Flash rate once per second Net search not registered turning off Slow rate once every 3 s Registered full service Constant ON Ringing OR call in progress OFF Module power down Green TGPIO_01 Reserv...

Страница 5: ...the power input are as follows Input voltage 5 to 16V DC Nominal input voltage 12V DC Supply current Peak 2A Average standby 25mA Call in progress 250mA Ringing 250mA The module is supplied with a 12...

Страница 6: ...cation as shown in table 5 PIN number Part number Function 1 0V Common 0V connection 2 RESET_IN External reset input 0V to 0 5V or open circuit inactive Reset OFF 2 to 16V active Reset ON must be acti...

Страница 7: ...trol of embedded application The following command has to be used to initialise and to set the digital output AT GPIO 5 1 1 switch output on AT GPIO 5 0 1 switch output off Mini USB Pin Signal on Teli...

Страница 8: ...IN4 Mini USB AT GPIO 12 2 0 read GPIO_12 PIN5 Mini USB 5 5 Digital Input A standard RS232 interface is provided through a 9 way D type socket All RS232 pins provide the following ESD protection 15kV H...

Страница 9: ...power The VSWR should be less than 3 1 to avoid damage to the device 5 7 1 Antenna placement When in service the antenna should be placed away from electronic devices or other antennas The recommende...

Страница 10: ...e a sharp signal transition from low to high to turn the modem on This transition should be a rising signal from 0V GND to VCC or at least a large fraction of that voltage range Very slow transitions...

Страница 11: ...000 Fax 44 0 118 976 9020 www sequoia co uk Rev 2 1 4 Jan 2011 Wireless Technology Experience The Freedom 8 Dimensions All dimensions are shown in mm The mounting holes are suitable for a M3 fixing sc...

Страница 12: ...4 GPRS Terminal 12 Sales 44 0 118 967 9000 Fax 44 0 118 976 9020 www sequoia co uk Rev 2 1 4 Jan 2011 Wireless Technology Experience The Freedom 8 3 Antenna and Power View 8 4 Sim and GPIO Indicator V...

Страница 13: ...signal strength by issuing the AT command AT CSQ See AT CSQ Signal Strength in the AT command manual Tip Before installing the modem you can use an ordinary mobile telephone to check the signal stren...

Страница 14: ...section 8 Terminal installation considerations before you begin your system integration 11 1 General precautions The SQ864 GPRS terminal is a standalone item designed for indoor use only For use outs...

Страница 15: ...r than the ground potential used in your application Beware ground potentials can vary significantly between hardware platforms 12 Safety Recommendations PLEASE READ CAREFULLY Be sure the use of this...

Страница 16: ...elecom installation instructions then no further evaluation is required under Article 3 2 of the R TTE Directive and no further involvement of a R TTE Directive Notified Body is required for the final...

Страница 17: ...010 Initial Draft MC 0 2 8 10 2010 Updated pin out and voltage levels MC 0 3 12 10 2010 Further updates RS 232 SIM socket and antenna MC 0 4 12 10 2010 Added power on truth table GPIO tolerance SIM pi...

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