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3G Power/Data LEDs Settings & Commands


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.

Setting Description Applicable Units
astparam s leds always_off Disable Power and Data LEDs.
Makes LEDs diagnostically useless.
All devices
astparam s leds always_on Standard LED behavior 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
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  • 13-Nov-2020
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