Introduction to the XT55

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Introduction to the XT55
2
Table of content

• Product highlights
• Target applications
• Mechanical design
• Functional description
• Main features GSM/GPRS
• Main features GPS
• GPS trickle power mode
• General features
• Connectors
• Serial interfaces
• Type Approvals
• XT55 firmware packages / applications
• XT55 - evaluation kit

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Why a combined module?

Low power consumption Enabled trough
trickle power mode, push to fix, sleep modes
High quality, high speed Stable Siemens GSM/GPRS
platform and SiRF GPS receiver
Simplified volume production Logistics
handling, production tests, quality control
HW allows SW flexibility variable default
settings and protocols, GPS history, Sirf
software packages
Time to market Easy redesign of existing
platforms, fast realization of solutions
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For which applications?

• fleet management
• car security / tracking
• personal tracking
• crew security
• pets tracking
• asset tracking
• consumer products

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Mechanical design
Length 53.0 mm (0.3) Width 35 mm
(0.3) Height 5.1 mm ( 0.3) Weight ca. 11 g
35 mm
Board to Board
53.0 mm
5.1 mm (3.15 mm at board-to-board connector)

• Board to board connector 3.15 mm (0.3 mm)
• Stacked height of connectors 3 mm

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Functional description
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Main features GSM/GPRS

• Tri-band GSM/GPRS (900/1800/1900)
• Class 4 (2W) at EGSM 900
• Class 1 (1W) at GSM 1800 and GSM 1900
• GPRS multi slot class 10 / mobile station class B
• CSD transmission rates 2.4 / 4.8 / 9.6 / 14.4
  kbps
• Audio features 2 analogue audio interfaces
• 1 digital audio interfaces (DAI)
• HR, FR, EFR, AMR (Adaptive Multi Rate)
• 6 Audio Modes (echo cancellation, noise
  reduction)
• Firmware upgrade over serial and SIM interface
• SIM Application Toolkit (SAT) class 3
• Support of various sleep modes to save power

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Main features GPS

• 12 channel GPS receiver
• SiRF Star IIe/LP chip set
• sensitivity -138 /- 2dB dBm
• max. altitude lt18288m
• max. velocity lt1852km/h
• protocols NMEA, SiRF binary, RTCM
• Acquisition rate snap start lt3s avg
• hot start lt 8s avg
• warm start lt 38s avg
• cold start lt 48s avg
• Accuracy w/o SA position 10m CEP
• velocity 0,1m/s
• Consumption 65 - 70mA
• Trickle power mode reduces consumption to lt18mA

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GPS Trickle Power Push to Fix mode
Default value for push to fix mode Off time
1800 sec (30 min) Range 10 - 7200 sec (120 min)
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General features

• Temperature range
• normal operation -20C to 55C
• restricted operation -25C to -20C and 55C
  to 70C
• Temperature control and automatic switch-off
• Supply voltage range 3.3...4.8 V (GSM Part)
  3.3 V DC - 5 (GPS Part)
• Support of charging control for Li-Ion battery

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Connectors

• Board to board connector
• 80 pin Hirose b2b connector
• dual serial interfaces (ASC0,ASC1,SD1,SD2)
• connection for SIM Card (3V)
• separate power supply pins for GSM and GPS part
• 10 GPIO pins (some are used by the software
  packages)
• Antenna connectors
• Both antenna connectors (Hirose 50 Ohm) are
  assembled on the component side of the PCB
• GSM Part antenna pad and grounding plane placed
  on the bottom side

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Serial interfaces

• ASC0 full-featured 8-wire serial interface
• with RTS0/CTS0 hardware handshake and
• software XON/XOFF flow control
• supports Multiplexer Protocol and Autobauding
• ASC1 4-wire serial interface
• with RTS1/CTS1 hardware handshake and
• software XON/XOFF flow control
• SD1 2-wire serial interface, supported baud rate
  4800bps
• with standard software, 9600bps with TCP/IP
• SD2 2-wire serial interface, supported baud rate
  9600bps

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Type Approvals

• European Approval
• RTTE
• G.C.F
• CE
• US Approval
• FCC
• PTCRB
• CTIA

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Our modules are approved!

• Siemens modules are fully approved to the above
  mentioned standards (FTA)
• All Siemens modules are GCF certified
• IMEI numbers
• All Siemens modules are certified by an expert
  opinion and signed with CE mark and notified body
  number

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XT55 firmware packages

• Standard SW (no AVL, no TCP/IP)
• and two software packages to flash
• AVL SW XT55 AVL Software
• TCP/IP XT55 TCP/IP Software

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XT55 ext. controller
XT55
GSM/GPRS
GPS
XT55 with Sirf standard software
ASC1
ASC0
SD1
SD2
ext. Application with user AVL and TCP/IP
AVL
ext. controller
TCP/IP
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XT55 AVL standalone
XT55

• XT55 with
• AVL sw package
• CSD
• SMS
• Alarms
• History
• No GPRS

GSM/GPRS
GPS
AVL
ASC1
ASC0
SD1
SD2
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XT55 w. AVL ext. controller
XT55

• XT55 with
• AVL sw package
• CSD
• SMS
• Alarms
• History

GSM/GPRS
GPS
AVL
ASC1
ASC0
SD1
SD2
ext. application runs TCP/IP (GPRS)
ext. controller
TCP/IP
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XT55 - Evaluation kit
XT55 evaluation kit
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Support to our customers

• All pre-tests for approval could be done at WM AE
  CS
• Spurious emissions
• EMC
• SIM
• Audio
• Siemens will support the customer through the
  certification process
• Work with test lab
• Provide confidential documents
• Schedule lab time

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• Thank you for your attention
• www.siemens-mobile.com/wm