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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
Standard Board Jumpers
Figure 7.
Standard Board Jumpers
1
2
3
4
5
6
No.
Item
Description
1
GPIO1 to red status LED
Used to display GSM network registration status when GPIO1 is
used in alternate function mode
AT#GPIO=1,0,2
AT#SLED=3
AT#SLEDAV
2
GPIO3 to blue status LED
Configure GPIO3 to turn blue status LED on and off
3
GPIO2 to green status LED
Configure GPIO2 to turn green status LED on and off
4
Auto power on mode connection
Modem will power up automatically when main power is applied
5
VRTC enable pin to VRTC battery
connection
Used to provide power for the RTC when main power is re
-
moved
6
Vin to main power board
connection
Used to measure board current usage
*
*Note:
To measure the drawn current current on the board, remove the jumper and connect an ammeter to the jumper pins.
