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3.3
3.4
Siemens AG
ICM CP
Bluetooth (optional)
The SIMpad SL4 may communicate with other Bluetooth products, if the appropriate
Bluetooth-PC-Card is used and the driver software is running on the SIMpad operating
system (see 5.1.1).
Bluetooth
Standard
Frequency
Bandwidth
Range
Type of communication
Roaming
Hand over
Module
Driver software
GSM/HSCSD (optional)
The SIMpad SL4 can establish a GSM data link with an appropriate GSM-phone card
(PC-Card) and the driver software running on the SIMpad operating system (see
5.1.1).
Another possibility is to use a GSM mobile phone connected to the SIMpad SL4 via
IrDA link or serial link.
HSCSD allows the channel bundling of up to 4 GSM time slots. This gives a maximum
bandwidth of approximately 40kbps.
GSM
Standard
Frequency
Bandwidth
Range
Type of communication
Roaming
Hand over
Module
Driver software
IEEE 802.15
2.4GHz (ISM)
• 720kbps / 57kbps (asymmetrical)
• 430kbps (symmetrical)
• About 10m indoor
• About 100m with internal amplifier
• Wireless ad hoc network
• Point-to-point
• Packet switched
no
no
Bluetooth-PC-Card
Download of specific driver software for CE3.0 for
StrongARM required
GSM or HSCSD
900MHz / 1800MHz
About 10kbps (GSM), up to about 40kbps
(HSCSD)
GSM network
• Point-to-point connection
• Always on
yes
yes
• GSM- or HSCSD-PC-Card
• GSM-/HSCSD mobile phone via IrDA
• GSM-/HSCSD mobile phone via Bluetooth to
Bluetooth PC-Card
Download of specific driver software for CE3.0 for
StrongARM required
Technical Description
SIMpad SL4
Version V2.0
16/74
20.08.01, David Brunner
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