Specifications

18
LED Indication
The onboard LED DS4 shows information regarding network service availability and call
status.
LED status GSM module status
Permanently off GSM module off
Fast blinking (period 1s, Ton 0,5s) Net search / Not registered / turning off
Slow blinking (period 3s, Ton 0,3s) Registered full service
Permanently on A call is active
3.6. WLAN Module
NOTE: The following section refers to EM-X270 - revisions 1.3 and higher. For previous
revisions of EM-X270 please refer to the shaded section below.
The EM-X270 incorporates full-featured 802.11 b/g capabilities, implemented with the
Wi2Wi W2SW0001 WLAN controller module. The W2SW0001 is a complete IEEE
802.11b/g solution based on the Marvell’s 88W8686 chipset.
Security features:
• WEP encryption (64 bit/128 bit)
• WPA TKIP security
•
WPA2
The W2SW0001 is connected to the PXA-270 CPU using the SPI #2 interface.
Antenna Connection
The EM-X270 features a small on-board ceramic patch antenna dedicated to WLAN
connectivity. Alternatively, an external antenna may be connected via the on-board high
frequency connector. Any type of 2.45GHz WLAN antenna can be used. See section 4.12
for a detailed connector description.
Note: An external antenna cannot operate together with the on-board patch antenna. In
order to use an external WLAN antenna, the on-board antenna must be disconnected.