User's Manual

FCC Test Report (Class II), FCC ID: ANO20040601CX2 Document Number: FCC 19-0293-0
Prepared by T. Murota 2/2
2. RF Exposure evaluation with co-located WLAN transmitters
The applying transmitter co-locates with the following Bluetooth module.
Option type FCC ID Grantee
Name
Product Name
Granted Date Conducted
Tx power
Built-in
LMA
Transmitter
ANO20040700HER
IBM Japan,
Ltd.
IBM integrated
Blutooth IV with 56K
Modem
December/09/2004
2.0mW
The Bluetooth antenna of ThinkPad X41 Tablet PC used for the model J07M064 (FCC ID: ANO20040700
HER) is subjected to Class I Permissive Change pursuant to the ET Docket 03–201; FCC 04-165,
July 12/2004 and Federal Register / Vol. 69, No. 172, September 7/2004, since the antenna is very
similar meander type to the existing granted antenna systems and the peak gain of it does not
exceed the maximum certified value as follows.
Host PC model
Designator
(Parts Number)
Antenna
type
Cable type
and length
Peak Gain
ThinkPad X41 Tablet
Series
91P6910 Coax 400 mm 2.37 dBi
ThinkPad T40 Series,
LCD 14 inch model
91P6901 Coax 265 mm 1.20 dBi
ThinkPad T40 Series,
LCD 15 inch model
91P6842 Coax 230 mm
2.84 dBi
ThinkPad R50 Series 91P6817 Coax 265 mm 2.16 dBi
ThinkPad X30 Series 46L4680 Coax 180 mm 1.80 dBi
ThinkPad X40 Series 13N5744
Meander
Antenna
Coax 341 mm 1.99 dBi
The output power of the Bluetooth transmitter does not exceed 5mW. Therefore the Bluetooth
transmitter itself also satisfies the RF exposure requirement in stand alone pursuant to the footnote 14 of
the Section 3 in Supplement C to OET Bulletin 65.
The “Electronic Handshake” BIOS Lock logic rejects an unauthorized use of combination of mini-PCI
wireless LAN card and Bluetooth module. But an advanced technology may develop an unexpected
wireless option such as a USB Bluetooth module ..etc.
IBM provides the following user’s guidance with user’s manual to have users prevent from an
unauthorized use of option wireless devices on ThinkPad X41 Tablet Series.
IV) Use of wireless options
Your ThinkPad computer is approved for use of one of the granted Wireless LAN Mini-PCI Cards
together with the granted Bluetooth module (FCC ID: ANO20040700HER) in the CDC slot
simultaneously. Make sure of the following conditions on use of these wireless features.
1. When you use any other RF option device, you are requested to confirm that the device conforms to
the SAR requirement and is approved to use for ThinkPad X41 Tablet Series computer.
2. All other wireless features including the integrated Wireless LAN Mini-PCI Card and Bluetooth
transmitter in your ThinkPad computer are required to be turned off.
3. Users must follow the RF Safety instructions on wireless option devices that are included in the RF
option device’s user’s manual.