Wrong Pin Code; Signal Strength Indication Using Leds - Landis+Gyr E65C Series User Manual

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5.3

Wrong PIN code

5.4

Signal strength indication using LEDs

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If all LEDs are fast blinking (0.5 s on/0.5 s off), an incorrect PIN code has
been parameterised for the SIM-card used. In this case, the user must set
the correct PIN code before restarting the module by power cycling the CU.
Please note that after three attempts with the wrong PIN code (which can
be triggered by 3 power cycles of the CU) it will require the use of the PUK
code to enable further PIN code attempts. The user can deactivate the PIN
code of the SIM-card with a mobile telephone.
In certain states, the LEDs RX and TX indicate the signal strength as
follows:
Reception level
Level 1 (inadequate)
Level 2 (sufficient)
Level 3 (good)
Level 4 (very good)
Field strength level
<–99 dBm
–99 dBm ... –90 dBm
–89 dBm ... –80 dBm
>–80 dBm
D000043188 en d – E65C – CU-P40, P41, P42 – User Manual
Operation
RX TX
off off
off on
on off
on on