PRODUCT BRIEF Version 1.0
SI – VEU 3.0
Vehicle Enterprise Unit
Sep 2005
SI-VEU 3.0
Vehicle Enterprise Unit
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SI-VEU 3.0
Vehicle Enterprise Unit
VEHICLE ENTERPRISE UNIT 3.0
Highlights
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Intel® PXA255 XScale Processor operating at 200MHz
32 MB SDRAM, 8MB StrataFlash®
32-bit ARM7 micro controller operating at 60MHz
Real Time Clock with battery back-up
Compact Flash Socket
Up to two RS-232 ports
802.11b Wireless LAN connectivity
Quad-band GSM/GPRS or CDMA 2000 cellular Modem
ORBCOMM Satellite Network Connectivity
12-channel GPS Receiver
On-Board Diagnostics (OBDII), SAE J1708 and J1939 CAN Bus interface
Impact Detection using 3-axis accelerometer
Emergency Button (activates covert microphone)
Ignition Detect for automatic on/off
Odometer reading including variable reluctance sensing
Nine general-purpose digital I/O pins
12 or 24 VDC input with over-voltage protection
Operating temperature: –40 to +85 0C
Overview
Processor
The Vehicle Enterprise Unit SI-VEU3.0 is powered by the low -power 32-bit Intel®
PXA255 Processor with Intel® XScale Technology operating at 200MHz. The PXA255 is
ARM architecture v.5TE compliant and has Intel® Superpipelined RISC Technology.
The processor has a built-in 32KB data and 32KB instruction cache and a 2KB Mini data
cache for streaming data. The unit also uses a dedicated 32-bit Philips LPC2119 micro
controller operating at 60MHz for the entire vehicle interface. The LPC2119 is based on a
32-bit ARM7TDMI-S™ CPU. The processor has a built-in 128KB Flash and 16KB RAM.
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SI-VEU 3.0
Vehicle Enterprise Unit
Memory
Apart from the 64KB cache, the SI-VEU3.0 has 32MB SDRAM and 8MB Page/BurstMode Intel StrataFlash® for higher performance. In addition, a CF socket is provided for
additional memory. The micro controller has 128KB built-in Flash and 16KB RAM.
Operating System
The SI-VEU3.0 is built on the latest Microsoft Windows CE.NET operating system.
CE.NET version 5.0 provides enhanced real-time processing, greater interoperability and
faster performance.
Accelerometer
The SI-VEU3.0 comes with a three-axis accelerometer capable of handling up to ±6g. The
third axis eliminates any mounting limitations, which are common to 2-axis devices.
This feature can be used to detect a vehicle impact, useful for alerting a central office or
for accident reconstruction.
Real Time Clock
The SI-VEU3.0 features a battery powered Real Time Clock that comes standard.
GPRS/CDMA
The SI-VEU3.0 comes with a choice of either a GPRS or a CDMA cellular modem for
data communication. Two-way voice communication is available only with additional
equipment from Si Solutions.
The Quad-band GSM/GPRS Modem Module (Wavecom WISMO Quik Q2426) is
capable of operating at E-GSM/GPRS 900/1800 or 850/1900 bi-band. The Module has a
transmit power of 2W at EGSM 900/GSM 850 and 1W at 1800/1900MHz. The SIM card
is user-accessible through an external connector with a locking mechanism.
The 1xRTT CDMA module (Wavecom WISMO Q2438) is capable of supporting the
following four bands and modes: CDMA Band Class0 (Cellular 800MHz Band), CDMA
Band Class1 (PCS 1900 MHz Band), AMPS (Cellular 800MHz Band) and the Qualcomm
gpsOne (L1 1575.42MHz Band).
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SI-VEU 3.0
Vehicle Enterprise Unit
IO Panel 1
The IO panel 1 has 8 connectors as shown in figure 1.
1
3
4
5
2
7
6
8
Figure1. The I/O panel 1 as viewed from one side of the unit.
The connectors as numbered in figure 1 are listed below in detail:
1. Satellite Modem
The SI-VEU3.0 has an optional Satellite Modem (Delphi DS100) to connect to the
ORBCOMM Satellite Network. The Modem has a transmit frequency of 148 to 150.05
MHz at 5Watts.
2. CF Card
A Compact Flash socket is provided on the SI-VEU3.0. Any standard CF storage card
can be used on this slot for additional storage or updating CE.NET images. This slot is
user-accessible externally.
3. SIM Card
This is the SIM card holder for the GPRS Modem.
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SI-VEU 3.0
Vehicle Enterprise Unit
4. Cell Phone Antenna
A 50-Ohm bulkhead SMC jack is available for connecting an antenna to the
GPRS/CDMA module.
5. GPS System
A 12-channel GPS receiver (Trimble Lassen iQ) comes standard with the SI-VEU3.0. An
SMA female connector is provided for antenna connection to the GPS.
6. 802.11b WLAN
The SI-VEU3.0 offers IEEE 802.11b connectivity. The unit also supports IEEE 802.11e and
IEEE 802.11i with WMM Quality of Service enhancements and WPA Security
enhancements. This is achieved through the Philips BGW200 chip. There is an SMA jack
available for connecting to an external antenna. Alternatively, wireless LAN
connectivity could also be achieved through wireless Compact Flash card.
7. Power Switch
This is the main power switch for the unit. The Switch indicates “0” while OFF and “1”
while ON.
8. Power and Ignition Detect
The SI-VEU3.0 operates at 12/24V DC. The power connector also has an Ignition detect
line to automatically wake the SI-VEU3.0 from sleep mode. This feature is used to
conserve battery when vehicle is off. The Ignition detect line has internal protection
against over voltage. The pin-out of the connector, as viewed externally is shown in
Figure 2 and described in Table 1.
The mating connector is Molex Mini-Fit, Jr.™ P/N: 39 - 01 – 403x and crimp P/N: 44485
– 1211 with 18AWG wire.
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SI-VEU 3.0
Vehicle Enterprise Unit
Figure 2. Pin-outs on the Supply and Power Detect Connector
Pin#
1
2
3
Description
Input Supply (12/24V DC)
Ground
Ignition Detect
Table 1. Pin Descriptions of the supply Power Connector
IO Panel 2
The IO panel 2 has 7 connectors as shown in figure 3.
1
2
3
5
7
4
6
Figure 3. The I/O panel 2 as viewed from one side of the unit.
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SI-VEU 3.0
Vehicle Enterprise Unit
The connectors as numbered in figure 1 are listed below in detail:
1. Digital I/O, Emergency and Odometer
The SI-VEU3.0 features five general-purpose inputs. These input lines can detect digital
pulses (e.g. button presses) and have internal protection against over-voltage. The SIVEU3.0 also has four general-purpose outputs, which can source up to 0.2A each. These
lines are accessible through a dual row 6x2 Molex Minifit Jr. Connector.
Apart from the general-purpose I/O, the SI-VEU3.0 has three other digital input lines:
two for odometer reading, and one to detect if the emergency button is activated. When
the emergency button is pressed, the unit automatically dials the dispatch office (via the
cellular modem) and transmits cabin audio through a concealed microphone. There are
two inputs to determine the vehicle speed. The Wheel Tick line requires positive input
pulses to detect the speed and the Variable Reluctance line senses the change in the
reluctance in the engine to determine the speed of the vehicle.
The pin-outs are as shown in the table below in Table2 and Table3.
12
11
10
9
8
7
6
5
4
3
2
1
Table 2. Pin-outs on the Digital I/O Connector
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
Description
GND
Variable Reluctance
(Odometer)
Digital Input 4
Digital Input 3
Digital Input 2
Digital Input 1
Emergency
Wheel Tick (Odometer)
Digital Output 4
Digital Output 3
Digital Output 2
Digital Output 1
Table 3. Pin Descriptions of the Digital I/O Connector
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SI-VEU 3.0
Vehicle Enterprise Unit
The mating connector is Molex Mini-Fit, Jr.™ P/N: 39 - 01 – 2120/2125 and crimp P/N:
44485 – 1211 with 18AWG wire.
2. Covert Microphone
A covert microphone is provided as an option with the SI-VEU3.0. This microphone is
activated and the voice transmitted automa tically through the GPRS/GPS Modem once
the emergency button is activated. A four-pin connector is available for connecting this
microphone.
The pin-outs are as shown in the table below in Table 4.
Microphone Input
3.3V DC
GND
GND
Table 4. Pin-outs on the Covert Microphone Connector as seen from the outside.
The mating connector is Molex Micro-Fit 3.0™ P/N: 43025 – 0400 with crimp P/N:
43030 – 000x using 20-24AWG wire.
3. SAE J1708 and J1939 Interface
The SI-VEU3.0 also includes SAE J1708 and J1939 CAN Bus interface for data
communications between microcomputer systems in heavy-duty vehicle applications.
These lines are accessed through the 2x2 dual row Molex Minifit Jr. connector. The pin
description is given in Table 3. Please note that the J1939 CAN Bus is available both
through this connector as well as through the standard OBDII Connector. The pin-outs
are as shown in the table below in Table5 and Table6.
4
1
3
1
Table 5. Pin-outs on the J1708 and CAN Connector
Pin #
1
2
3
4
Description
J1708High Speed CAN L
J1708+
High Speed CAN H
Table 6. Pin Descriptions of the Connector for SAEJ1708 and J1939 Bus
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SI-VEU 3.0
Vehicle Enterprise Unit
The mating connector is Molex Mini-Fit, Jr.™ P/N: 39 - 01 – 2040/2045 and crimp P/N:
44485 – 1211 with 18AWG wire.
4. Display Unit Interface
This stacked DB15 connector is reserved for interfacing the SI-VEU3.0 to our display
unit, the SI-DU1.0
5. OBDII Vehicle Interface
The SI-VEU3.0 has a 9-pin female D-Sub connector to interface to the On-Board
Diagnostics Phase-2 (OBD II) port on the vehicle. The pin descriptions are given in Table
2. The OBDII vehicle interface on the SI-VEU3.0 includes all OBDII protocols:
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J1850 PWM, the 41.6 kHz protocol commonly used in Ford Motor Company
vehicles.
J1850 VPW, the 10.4 kHz protocol commonly used in General Motors and some
Daimler-Chrysler vehicles
ISO 9141 and ISO 14230 (KWP2000), which are protocols that are commonly used
in imported vehicles such as Volkswagen.
J1939 CAN Bus interface
Pin# on DB9
1
2
3
4
5
6
7
8
9
Pin# on J1962 OBD
5
4
6
7
9
10
2
15
16
Description
Signal GND
Chassis GND
High Speed CAN H
ISO 9141-2K
High Speed CAN L
J1850 J1850 +
ISO 9141-2 L
Battery Positive
Table 7. Pin Descriptions of the female DB9 and J1962 OBD pins for OBDII interface
6. COM A
This is the first of the two COM ports we have available on the SI-VEU3.0. Full flow
control is achieved on this port through a male DB9 connector. This acts as the DTE side
of the RS-232 communication channel. Windows CE designates this port as COM 4.
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SI-VEU 3.0
Vehicle Enterprise Unit
7. COM B
This is the second COM port on the SI-VEU3.0. Full flow control is achieved on this part
through a DB9 connector. This acts as the DTE side of the RS-232 communication
channel. This port is not available if the unit is equipped with the ORBCOMM Satellite
Modem. Windows CE designates this port as COM 5.
© Copyright 2004-2005 Si Solutions, LLC.
The information contained herein is subject to change without notice. Microsoft and
Windows are registered trademarks or trademarks of Microsoft Corporation in the U.S.
and/or other countries. Intel and StrataFlash are trademarks or registered trademarks of
Intel Corporation or its subsidiaries in the United States and other countries. All other
product names mentioned herein may be trademarks of their respective companies.
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