ETRX2HR-PA Telegesis Ltd, ETRX2HR-PA Datasheet - Page 6

• Manufacturer Part Number: ETRX2HR-PA
• Description: MODULE
• Manufacturer: Telegesis Ltd

Specifications of ETRX2HR-PA

• Module Applications: AMR, Building Automation, Wireless Sensor Network, M2M Industrial Controls
• Mcu Supported Families: EM250
• Processor Type: EM250
• Wireless Protocol: IEEE 802.15.4
• Data Rate: 250Kbps
• Module Interface: I2C, SPI, UART
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1.2 Hardware precautions
1.2.1
The bootloader which runs on the ETRX2-PA can be initiated with a firmware command, but it can
also be triggered in hardware. If the A/D2 input (pad 10) is pulled low during the boot-up of the
module it will enter the bootloader routine, so exercise caution when doing hardware design and
ensure that this pin is not grounded during start-up and reset or driven from an analogue voltage
that may be sensed as a logic 0. If unused the pad can be left floating and a pull-up is not
required.
2 Product Approvals
The ETRX2-PA and ETRX2HR-PA have been designed to meet all national regulations for world-
wide use. In particular the following certifications have been obtained:
2.1 FCC Approvals
The Telegesis ETRX2-PA and also the ETRX2HR-PA including the antennae listed in Table 1
complies with FCC CFR Part 15 (USA).
transmitter approval as detailed in the FCC public notice DA00.1407.transmitter.
This device complies with Part 15 of the FCC rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired
operation.
This module complies with the USA SAR requirements and is not intended to be operated within
20cm of the body. The following statement must be included as a CAUTION statement in manuals
for OEM products to alert users on FCC RF exposure compliance:
“WARNING: To satisfy FCC RF exposure requirements for mobile transmitting devices, a
separation distance of 20cm or more should be maintained between the antenna of this
device and persons during operation. To ensure compliance, operations at closer
distances than this are not recommended.”
Item Part No.
1
2
2
While the applicant for a device into which the ETRX2-PA or ETRX2HR-PA (with an antenna listed
in Table 1) is installed is not required to obtain a new authorization for the module, this does not
preclude the possibility that some other form of authorization or testing may be required for the end
product.
©2009 Telegesis (UK) Ltd
BKR2400
BT-Stubby (Straight)
BT-Stubby
(right-angle)
Unexpected start-up in bootloader mode
FCC ID: T7VEM250B
Manufacturer
Embedded Antenna Design Ltd.
Embedded Antenna Design Ltd.
Embedded Antenna Design Ltd.
Table 1: Approved Antennae
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The devices meet the requirements for modular
ETRX2PA Product Manual (Rev 1.07)
Type
½ Wave Dipole
Wire
Wire
ETRX2PA
Gain
2 dBi
0 dBi
0 dBi