State of the Art EVSE
User Manual
Model 3727-A02XX EVSE Gateway
Copyright EVSE LLC 2017. All rights reserved. Patents pending.
Page 13
Indicator Lights – Cell Modem Status
Once you have successfully installed and powered the unit, the indicator lights (Figure 3) for the optional cellular modem display
specific patterns consistent with the cellular operating mode. They are identified as Network, Signal, Active and Power.
Figure 3
Network: When lit solid, this LED indicates a successful connection to the network with an IP address given and a channel acquired.
A tri-mode LED network blinks slowly while searching for cellular service. Once it finds cellular service, it blinks faster while it is
attempting to authenticate on the cellular network. It is finally solid when the device is authenticated on the cellular network and is
provided an IP address by the cellular network.
Signal: A slow blink indicates a signal is being received.
RSS/Signal LED Status
Ranges of RSSI (dBm)
Slow Blink
-90 to -99
Not Lit
Equal to or weaker than -100
Active: Lights will flash as data is transferred to and from the cellular modem on the remote network.
Power: This LED indicates that the cellular modem is receiving power.
Light Patterns: Light patterns for the above LED’s indicate various modem states.
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Normal: Each LED is lit as applicable for its function.
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Start Up: The LED’s cycle from left to right.
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Configuration Reset: The LEDs will cycle left to right and then right to left four times.
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Authentication Failure: The Network, Signal and Active LEDs blink every 2 seconds
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Data Retry: The Network, Signal and Active LEDs blink every 3 seconds.
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OTASP: The Network, Signal and Active LEDs blink, one at a time, in order.
