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A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
www.siretta.co.uk
inspired wireless technology
EVK Board Connectors
Figure 4.
EVK Board Connectors
1
4
No.
Item
Description
1
Modem USB connection
Used to communicate with the modem via USB serial cable
2
Power ON/OFF switch
Used to switch the modem ON/OFF when CN9 (auto power on)
is not connected
3
Hardware RESET switch
Used to reset the modem when it has stopped responding.
DO NOT
use to power off the modem, only use as a disaster
recovery option
4
12V power input
Used to power the board from a standard RJ12 power supply
(See ‘Power Supply Requirements’ on page 9)
5
RS232 AT command port
Used to control modem and send AT commands to configure
the modem settings
6
RS232 Debug / Trace Port
Used to communicate with the modem to enable Trace Client
diagnostics and Python debug output
2
3
5
6