ETRX2USB Telegesis Ltd, ETRX2USB Datasheet - Page 5

• Manufacturer Part Number: ETRX2USB
• Description: MODULE ZIGBEE USB STICK
• Manufacturer: Telegesis Ltd

Specifications of ETRX2USB

• Function: Transceiver, ZigBee
• Modulation Or Protocol: 802.15.4 Zigbee
• Frequency: 2.4GHz
• Applications: ISM
• Interface: USB
• Sensitivity: -98dBm
• Power - Output: 3dBm
• Data Rate - Maximum: 250kbps
• Voltage - Supply: 4.75 V ~ 5.25 V
• Package / Case: Module
• Module Applications: Commissioning Tool When Setting Up Networks
• Compliance Standard: IEEE 802.15.4
• Supported Devices: ETRX2
• Module Interface: RS232, USB
• Supply Voltage Range: 4.75V To 5.25V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 920-1002

5 ETRX2 I/O Connectivity
The I/Os of the built in ETRX2 are connected as follows:
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 1kΩ resistor 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”
(with R2xx firmware) or “ATS17=00FA” (with R3xx) 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 ZigBee USB stick.
©2009 Telegesis (UK) Ltd
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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.
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ETRX2USB Product Manual (Rev 1.05)
ETRX2USB