SQ864
GPRS Terminal
4
Sales: +44 (0) 118 967 9000
Fax: +44 (0) 118 976 9020
www.sequoia.co.uk
Rev 2.1.4 Jan 2011
Wireless Technology
Experience The Freedom
4. Device States
The current state of the device is indicated by the status LEDs as shown in Table 1 below.
Table 1 Device status LEDs
The current state of the device is indicated by the status LEDs as shown in Table 1 below.
Table 1 Device status LEDs
LED colour
State
Red (STAT_LED)
Flash rate once per second: Net search / not registered / turning off
Slow rate once every 3 s: Registered full service
Constant ON: Ringing OR call in progress
OFF: Module power down
Green (TGPIO_01)
Reserved / test only
Blue (TGPIO_02)
Reserved / test only
Current Device State
Input
Next state
Indication of new state
Power Off
Connect power
Run Mode
Red LED will flash once per
second
Run Mode
Insert a valid SIM card
On Network
Red LED will flash once every 3
seconds
On Network
Apply pulse to pin 3 of power
connector
Power off
No activity on any LED
Run Mode
Apply pulse to pin 3 of power
connector
Power off
No Activity on any LED
