Telegesis ETRX2USB User manual

Telegesis
TG-ETRX2USB-PM-004-103
1
ETRX2USB
Product Manual
1.03
©2008 Telegesis (UK) Ltd ETRX2USB Product Manual (Rev 1.03)
TG-ETRX2USB-PM-004-103
ETRX2USB USB STICK
PRODUCT MANUAL
Telegesis

Telegesis
TG-ETRX2USB-PM-004-103
2
ETRX2USB
Product Manual
1.03
©2008 Telegesis (UK) Ltd ETRX2USB Product Manual (Rev 1.03)
Table of Contents
1INTRODUCTION.....................................................................................................3
1.1 Supported Operating Systems ................................................................................3
2ABSOLUTE MAXIMUM RATINGS.........................................................................4
3OPERATING CONDITIONS ...................................................................................4
4OTHER DATA ........................................................................................................4
5ETRX2 I/O CONNECTIVITY ...................................................................................5
6FIRMWARE UPGRADES .......................................................................................5
7DRIVER INSTALLATION AND OPERATION.........................................................6
7.1 Windows 9x/XP/2k Driver Installation......................................................................6
7.2 Macintosh and Linux drivers....................................................................................9
8CUSTOM FIRMWARE DEVELOPMENT..............................................................10
9ORDERING INFORMATION.................................................................................11
10 TRADEMARKS ....................................................................................................12
11 DISCLAIMER........................................................................................................12
12 CONTACT INFORMATION ..................................................................................12
13 REFERENCES .....................................................................................................12

Telegesis
TG-ETRX2USB-PM-004-103
3
ETRX2USB
Product Manual
1.03
©2008 Telegesis (UK) Ltd ETRX2USB Product Manual (Rev 1.03)
1 Introduction
The ETRX2USB wireless mesh networking USB Stick is effectively an RS232 to USB bridge
connected to an ETRX2 wireless meshing module. This allows connectivity to a computer‟s USB
port.
The supplied drivers create a virtual COM Port, so that the command line of the ETRX2 can be
accessed via any terminal software application.
When using Windows®9x/XP/2000 the Telegesis Terminal application can be used as described in
the Development Kit manual.
1.1 Supported Operating Systems
-Windows 98SE
-Windows XP
-Windows 2000
-MAC OS-9
-MAC OS-X
-Linux

Telegesis
TG-ETRX2USB-PM-004-103
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ETRX2USB
Product Manual
1.03
©2008 Telegesis (UK) Ltd ETRX2USB Product Manual (Rev 1.03)
2 Absolute Maximum Ratings
Parameter
Min.
Max.
Units
Condition
Supply Voltage Vdd
-0.3
5.25
V
Voltage on any pin
-0.3
Vdd+0.3, max 5.8
V
Storage Temperature range
-40
150
°C
Table 1: Absolute Maximum Ratings
The absolute maximum ratings given above should under no circumstances be violated. Exceeding
one or more of the limiting values may cause permanent damage to the device.
3 Operating Conditions
Typical values at 5V 25°C.
Parameter
Min.
Typ.
Max.
Units
Condition
Supply Voltage, Vdd
4.75
5
5.25
V
Supply Current
621
mA
TX 3dBm
551
mA
TX –28dBm
621
mA
RX
321,2
mA
Power Mode 01
271,2
mA
Power Mode 02
261,2
mA
Power Mode 03
Operating ambient
temperature range
-20
25
85
°C
Table 2: Operating Conditions
4 Other data
For further technical information, including radio certification, see the ETRX2 or ETRX2PA Module
Product Manual.
Please note that the R2xx Telegesis AT-Command line Interpreter is based on a private application
profile and uses the Ember meshing and self-healing stack, so interoperability with wireless mesh
networking solutions from other manufacturers is unlikely when using the default firmware. For more
information on ZigBee® compliance and the AT command interface please refer to the latest AT
command dictionary and the ETRX2 user guide.
1
During USB suspend the current will drop by 25.6mA in all modes.
2
Please note that the power consumption in various power modes is firmware and usage dependent.

Telegesis
TG-ETRX2USB-PM-004-103
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ETRX2USB
Product Manual
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©2008 Telegesis (UK) Ltd ETRX2USB Product Manual (Rev 1.03)
5 ETRX2 I/O Connectivity
The I/Os of the built in ETRX2 are connected as follows:
- I/O1 is connected to the LED (drive I/O1 low to sink LED).
- I/O2 is the CTS input for the ETRX2. Make sure I/O2 is never defined as an output.
- I/O4 is the RTS input for the ETRX2.
Important Note: The lines for hardware handshaking are connected, so even when not using
hardware handshaking I/O2 should never be defined as an output as this would drive against the
incoming CTS signal via a 1kΩresistor and increase the current consumption.
Note that if you use the command “AT&F” on the USB stick, I/O1 will revert to being an input and the
LED will not light up. To restore its function as a pilot light, use the command “ATS0E=00FA”
followed by a reset.
6 Firmware upgrades
The firmware which is loaded onto the embedded ETRX2 Module can be upgraded over the air or
via the virtual com port as described in the Development Kit manual.
Alternatively access to the SIF programming interface is possible by opening the cover on the side
of the ETRX2USB wireless meshing USB stick.

Telegesis
TG-ETRX2USB-PM-004-103
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ETRX2USB
Product Manual
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©2008 Telegesis (UK) Ltd ETRX2USB Product Manual (Rev 1.03)
7 Driver Installation and Operation
The drivers provided will generate a virtual COM port allowing easy access to the serial port of the
embedded ETRX2.
To read more about the ETRX2 wireless mesh networking module and its command line interface
please read the corresponding documentation which can be found at www.telegesis.com.
7.1 Windows 9x/XP/2k Driver Installation
The driver package downloadable from www.telegesis.com should be unzipped into a local folder.
When executing the file „PreInstaller.exe‟ prior to plugging in the ETRX2USB stick an installer will
guide you through the steps required for the driver installation. If prompted that the driver hasn‟t
passed the windows logo test simply press „Continue Anyway‟.
Figure 1: Found New Hardware Wizard
After insertion of the stick Windows®will prompt that new hardware has been found. If you have run
the „PreInstaller.exe‟ windows will be able to install the driver by automatically as shown in figure 2.
In case you haven‟t run „PreInstaller.exe‟ you will have to manually point to the directory into which
you have unzipped the driver.

Telegesis
TG-ETRX2USB-PM-004-103
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ETRX2USB
Product Manual
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©2008 Telegesis (UK) Ltd ETRX2USB Product Manual (Rev 1.03)
Figure 2: Install software Automatically
If prompted that the driver hasn‟t passed the windows logo test simply press „Continue Anyway‟.
Figure 3: Windows Logo Test
After completing the installation of the USB device the new hardware wizard will start again in order
to install the virtual com port in identical manner.
Please note that each ETRX2USB has a unique serial number which requires the installation
procedure to be repeated with every new ETRX2USB being attached to the computer. This allows
multiple ETRX2USB sticks to be used on the same computer at any one time.

Telegesis
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ETRX2USB
Product Manual
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©2008 Telegesis (UK) Ltd ETRX2USB Product Manual (Rev 1.03)
In order to find out the identity/number of the virtual com port the card has been assigned to, please
enter the Device Manager under the Windows Computer Management screen (see below) and click
on the Ports (COM and LPT) section where you should find the new virtual COM port. By double
clicking on the entry of the virtual COM port you can also change the number assigned to the virtual
COM port when entering the advanced setup of the device.
Figure 4: Device Manager
Once the correct COM port has been selected, the Terminal software can be used to control the
ETRX2USB stick as per the Development Kit Manual.

Telegesis
TG-ETRX2USB-PM-004-103
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ETRX2USB
Product Manual
1.03
©2008 Telegesis (UK) Ltd ETRX2USB Product Manual (Rev 1.03)
Figure 5: Telegesis Terminal
7.2 Macintosh and Linux drivers
Drivers for Mac and Linux can be downloaded from our website at
www.telegesis.com/ZigBee/Dsoftware.htm.
In addition, one of our customers has written a Linux driver that will be included in the 2.6.25 kernel.
It can be found at www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/patches/. (Note that
this is for information only, and this software was developed entirely outside Telegesis.)

Telegesis
TG-ETRX2USB-PM-004-103
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ETRX2USB
Product Manual
1.03
©2008 Telegesis (UK) Ltd ETRX2USB Product Manual (Rev 1.03)
8 Custom Firmware Development
If you intend to develop custom firmware to go onto the ETRX2USB you need to contact Ember to
obtain access to their suite of development tools and their stack.
In order to download custom firmware onto the ETRX2, the Ember bootloader can be used or
alternatively the ETRX2USB can be directly connected to the Ember InSight Adapter for
programming and real time debugging.