Quick start guide say’s:
• LTE Signal LEDs display the strength of the cellular signal.
but where are those LED’s? On the back side is led bar indeed, but those do not work like they should.
On the default configuration, “/system led print” do not show any led defined at all.
When I do
system leds add type=modem-technology modem-signal-treshold=-60 interface=lte1 leds=led1 disabled=no
system leds add type=modem-technology modem-signal-treshold=-70 interface=lte1 leds=led2 disabled=no
system leds add type=modem-technology modem-signal-treshold=-80 interface=lte1 leds=led3 disabled=no
system leds add type=modem-technology modem-signal-treshold=-90 interface=lte1 leds=led4 disabled=no
system leds add type=modem-technology modem-signal-treshold=-100 interface=lte1 leds=led5 disabled=no
they appear under “system leds” without any error, but then all leds just switch on, no matter what actual signal level is. There seems to be two state. They switch on, when modem is connected, and off, if it is not. How to configure them to show actual signal level?
The whole modem-signal strength range is [-113..-51] and the modem-signal-threshold increases the weakest signal limit to -91 so the signal range for LED indication is [-91..-51]. That range is divided into equal parts depending on number of LEDs configured for modem-signal LED trigger. The first LED turns on when signal is above -91 and the last LED turns on when signal reaches -51.
I’ve tried the above on 6.42.6 but got an error (may be related to previous entry for led1)
/system leds add interface=lte1 leds=led1,led2,led3,led4,led5 modem-signal-treshold=-91 type=modem-signal
failure: One led can't have multiple assigments!
If I modify from WinBox, it seems to take it, and results in:
> print detail
Flags: X - disabled, * - default
0 * ;;; using RSRP, modem-signal-treshold ignored
type=modem-signal leds=led1,led2,led3,led4,led5 interface=lte1 modem-signal-treshold=-91
> export
/system leds
# using RSRP, modem-signal-treshold ignored
set 0 interface=lte1 type=modem-signal
They fixed the spelling oh threshold in later updates, I was getting same error until I used.
/system leds add interface=lte1 leds=led1,led2,led3,led4,led5 modem-signal-threshold=-91 type=modem-signal
Also, I went into web interface, remove the leds 1-5 from the default then ran the command, disabled the default
enabled the new one. That got around error failure: One led can’t have multiple assigments!