Module LEDs
The module has 9 green LEDs along the back of the board. These LEDs provide valuable information about
the status of the module as described in
Table 3
.
Table 3. Module LEDs
LED
Description
DS1 - Buss
Proper circuitry operation.
DS2 - XMIT
Transmitting message packet to the tower
DS3 - SVC
Cellular service available
DS4 - BEST
DS5 - GOOD
DS6 - FAIR
DS7 - POOR
The LEDs will either be off, on, flashing slow, or flashing fast depending on the dB of
the signal. Refer to
Table 4
on page 7 for details.
DS9 - RXD
Receiving data from GSM radio.
DS8 - TXD
Sending data to GSM radio.