WiSnap User Manual 2.21 04112011-JF
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By default, the WiSnap AAA Dongle automatically shuts itself off if not connected for more than 3
minutes = 180 seconds. The sleep timer duration is controlled by using the
set sys sleep
<seconds>
command. Use the
get sys
to display the current settings of the sleep timer.
2.6.2
Dipswitches
There are four small configuration switches on the top of the WiSnap
AAA Dongle. You will need a paper clip or small screw driver to change
them. Holding the device with the DB9 connector facing to the right,
the switches are numbered one to four from bottom to top. The off
position is towards the DB9 connector.
Switch 1 – Adhoc and restoring factory defaults
With this switch ON, the device powers up in ad-hoc mode. The SSID of the ad-hoc network will be
WiSnap-NN where NN is the last two digits of the devices mac address.
To restore factory defaults, power on the device with this switch ON, and then toggle the switch five
(5) times. If there is a config file named "user" on the WiSnap AAA Dongle file system, it is read in
as the factory defaults instead of using the hardcoded defaults. If no "user" config file is present, the
hardcoded factory defaults are used.
The "user" config file is created using the "
save user
" command which saves the current
configuration settings.
Even if there is a “user” config file arming and toggling this switch seven (7) times will override the
“user” settings and restore the WiSnap module to the factory hardcoded defaults. This is a bypass
mechanism in case a bad configuration is saved into the “user” file.
Switch 2 – Sensor pin 2:
Currently not used
Switch 3 – Sensor pin 3:
Currently not used
Switch 4 – Sensor pin 7:
Currently not used
2.6.3
Serial Connector Specification
DB9 connector Pin Out
NOTE: The RS232 interface uses the SIPEX SP3232ECA
chip with capacitor switch to generate the + and – signals
and thus is not driving the full RS232 voltages. Devices
stealing power from the RS232 pins may not have enough
voltage.
Pin
WiSnap AAA
Male DB9
WiSnap AAA
Female DB9
1
NC
NC
2
RXD
TXD
3
TXD
RXD
4
DTR (=PIO7)
DON’T USE
5
GND
GND
6
DSR (=PIO8)
5V DC (input)
7
RTS
CTS
8
CTS
RTS
9
5V DC Only
5V DC Only
on off
4
3
2
1
