Sierra Wireless AirPrime HL8548 Hardware Integration Manual Download Page 13

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4119996

Rev 1.3

Hardware Integration Guide

ESD Guidelines

4.2.

USB

When the USB interface is externally accessible, it is required to have ESD protection on the USB_D+
and USB_D- signals.

Figure 2.

ESD Protection for USB

Sierra Wireless recommends using a 90Ω DLP0NSN900HL2L EMC filter and an RCLAMP0503N or
ESD5V3U2U-03LRH ESD diode.

April 10, 2017

Summary of Contents for AirPrime HL8548

Page 1: ...4119996 1 3 April 10 2017 AirPrime HL8548 Hardware Integration Guide...

Page 2: ...ere with various onboard systems Note Some airlines may permit the use of cellular phones while the aircraft is on the ground and the door is open Sierra Wireless modems may be used at this time The d...

Page 3: ...ered trademarks of Sierra Wireless Inc or one of its subsidiaries Watcher is a registered trademark of NETGEAR Inc used under license Windows and Windows Vista are registered trademarks of Microsoft C...

Page 4: ...cument History Version Date Updates 1 0 September 29 2016 Creation 1 1 October 14 2016 Updated to match with the data in the HL8548 PTS 1 2 October 24 2016 Updated 5 2 IC Regulations April 10 2017 1 3...

Page 5: ...10 3 2 1 Choosing the Correct Antenna and Cabling 11 3 2 2 Designing Custom Antennas 11 3 2 3 Determining the Antenna s Location 11 3 3 RF Performances 11 4 ESD GUIDELINES 12 4 1 SIM Card 12 4 2 USB...

Page 6: ...4119996 Rev 1 3 6 List of Figures Figure 1 EMC and ESD Components Close to the SIM 12 Figure 2 ESD Protection for USB 13 April 10 2017...

Page 7: ...4119996 Rev 1 3 7 List of Tables Table 1 Power Supply 9 Table 2 Supported Bands 10 Table 3 Conducted RX Sensitivity dBm 11 Table 4 Approved Antenna Types 16 April 10 2017...

Page 8: ...ct family and provides data connectivity on wireless networks as listed in Table 2 Supported Bands The HL8548 supports a large variety of interfaces such as USB 2 0 UART GPIOs and SIM to provide custo...

Page 9: ...or VBAT is around 30 F 20 embedded inside the accessory board 2 2 Power Off Sequence To power the HL8548 off 1 Put the accessory board in low power mode LPM by sending either AT KSLEEP 1 or AT CPWROFF...

Page 10: ...o 915 MHz 925 to 960 MHz 2 Watts GSM GPRS and EDGE DCS 1800 1710 to 1785 MHz 1805 to 1880 MHz 1 Watt GSM GPRS and EDGE PCS 1900 1850 to 1910 MHz 1930 to 1990 MHz 1 Watt GSM GPRS and EDGE 3 2 RF Connec...

Page 11: ...e in most applications the placement of the antenna is still very important if the host device is insufficiently shielded high levels of broadband noise or spurious interferences can degrade the HL854...

Page 12: ...ssible to the SIM card connectors on UIM1_CLK UIM1_RST UIM1_VCC and UIM1_DATA signals to avoid EMC issues and to comply with the requirements of ETSI and 3GPP standards covering the SIM electrical int...

Page 13: ...n the USB interface is externally accessible it is required to have ESD protection on the USB_D and USB_D signals Figure 2 ESD Protection for USB Sierra Wireless recommends using a 90 DLP0NSN900HL2L E...

Page 14: ...ar band 5 0 dBi in the PCS band 3 The HL8548 may transmit simultaneously with other collocated radio transmitters within a host device provided the following conditions are met Each collocated radio t...

Page 15: ...path on the board must not cross any signal digital analog or supply 5 A label must be affixed to the outside of the end product into which the HL8548 is incorporated with a statement similar to the f...

Page 16: ...ironment This equipment should be installed and operated with minimum distance 20cm between the radiator and your body Cet quipement est conforme Canada limites d exposition aux radiations dans un env...

Page 17: ...uropean Geostationary Navigation Overlay Service EMC Electromagnetic Compatibility EMI Electromagnetic Interference EN Enable ESD Electrostatic Discharges ETSI European Telecommunications Standards In...

Page 18: ...ce RMS Root Mean Square RST Reset RTC Real Time Clock RX Receive SCL Serial Clock SDA Serial Data SIM Subscriber Identification Module SMD Surface Mounted Device Design SPI Serial Peripheral Interface...