Specifications

16
Table 2.1 Possible concurrent connection with multiple devices
PCMCIA CF (Extension slot)
Application
WLAN
card
WWAN
card
FROM
card
WLAN
card
WWAN
card
IrDA Bluetooth
Charge
terminal
- Yes - - - Yes Yes Yes
- Yes Yes - - Yes Yes Yes
Terminal
used by
driver
- Yes - Ye s - Ye s Ye s Yes
Yes - - - - Yes Yes Yes
Yes - Yes - - Yes Ye s Yes
Terminal
used in
warehouse
- - - Yes - Yes Yes Yes
- - Yes - - Yes Yes Yes Terminal
used for
others
- - - - -
Yes Yes Ye s
Notes
• Due to power supply restrictions, concurrent connection with some devices may not be
possible.
• “WWAN” denotes World Wide Area Network.
Switching over process for LAN devices
As shown in Table 2.1, multiple LAN devices can be installed (i.e. the drivers are loaded) at one
time in the terminal. However, for actual communication, it is necessary to switch to the specific
device as required. The following explains the switching procedure:
Table 2.2
Device Slot Feature/Protocol Remark
WLAN card CF slot IEEE802.11b
WLAN card PCMCIA slot IEEE802.11b
LAN card CF slot LAN connection via 10BASE-T networking
LAN card PCMCIA slot LAN connection via 10BASE-T networking
TSwitching method
An API will be provided which enables the switch over of LAN devices from an application. This
does not use registry settings and it is therefore possible to switch over instantly without
performing a reset. For further details, refer to the Common Device Control Library Manual for
TSysCardDetectDisableT, TSysCardDetectEnableT and TCLBCardDetectGet functions.
Automatic switching between WWAN and WLAN (seamless roaming)
If both WWAN and WLAN are to be used, a function to change over is not supported by the OS.
The application should use the method described above to switch over.