Overview
Every Just Add Power 3G devices on justOS firmware has a Power LED and a Data LED whose behaviors are diagnostically relevant and editable.
Default LED behavior can be referenced in the Power & Data Lights Troubleshooting Section
This article deals with Commands - instant changes to behavior.
For information on Settings - changes that affect boot-up default behavior - please see the 3G Device Settings article
Access
All Settings & Commands should be entered via the Command Line Interface accessible via:
- Telnet to the IP of the unit, at port 23
- RS232
- White, 3-pin molex connector on the bottom of the unit. Make or request a Debug Cable to access.
- 115200-8n1 baud rate
All Settings & Commands are case-sensitive.
Settings must be saved via the webUI or by sending astparam save followed by a reboot
Settings
Settings must be applied, saved, and the device rebooted to take effect. Once applied on start-up, they will persist until modified or erased. Modifying LED behavior makes them diagnostically useless.
| Setting | Description | Applicable Units |
|---|---|---|
astparam s leds always_off |
Both LEDs are always off. | All devices |
astparam s leds only_on_video |
Both LEDs off when no video present. Both LEDs on when video is present. |
All devices |
Commands
Commands affect behavior instantly and do not persist through a reboot.
| Command | Description | Applicable Units |
|---|---|---|
leds on |
Turn on both LEDs regardless of status | All devices |
leds off |
Turn off both LEDs regardless of status | All devices |
leds blink |
Both LEDs steadily blink regardless of status | All devices |
leds heartbeat |
Both LEDs heartbeat - blink/blink/pause - regardless of status | All devices |
leds watchdog on |
Allows the device to change LED behavior Only works when the LED Setting is changed from default |
All devices |
leds watchdog off |
Prevents the device from changing LED behavior Only works when the LED Setting is changed from default |
All devices |
leds default |
Return LEDs to the standard behavior based on operating status | All devices |
