Metrum Technologies LLC UTILIWISEECM User Manual
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Table 4 below describes the meaning of the LED indicators in more detail.
LED Indicator
Indication
Diagnostic and Communication LED’s (4)
Transmit LED - Toggles from Green to Red with communication to the
meter through the modem indicating that data packets are passing
through the device.
Receive LED - Toggles from Green to Red with communication to the
meter through the modem indicating that data packets are passing
through the device.
Carrier Detect LED - Stays Green until connected to the modem and
then it will turn Red and stay Red while connected to the modem. It will
turn Green again once you are disconnected from the modem.
Heartbeat LED
– Toggles from Green to Red at a one-second rate
indicating normal device operation.
DC Power to Modem LED (1)
Red indicates power ON to the Modem
Network Connection LED (1)
Green indicates the device is connected to the wireless network and the
device has obtained its IP address
RS485 Communications LED (1)
Blinks green when communicating through the 485 port
RS485 Jumper Position LED (1)
Green indicates the jumper is configured for 4-wire operation; Red indicates
it is configured for 2-wire operation
TABLE 4 EXTERNAL ECM LED INDICATOR DESCRIPTIONS