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MBU 400 Installation Guide 15
3. Connect the MBU power adapter to the MBU, and plug-in the other
end to an active power outlet (preferably a continuous power outlet
without a switch to interrupt its power).
The POWER LED on the MBU lights up steady and the I-NET LED
ashes as the MBU proceeds to power up.
When the power cycle is complete, the I-NET LED goes out, the
POWER LED lights up steady, and then the I-NET LED lights up
steady indicating the MBU has obtained an IP address and is ready to
be congured.
Note: The Call LED lights up steady during incoming or outgoing
VoIP and landline calls.
Power LED
I-Net LED
MBU
Phone socket to power socket
Line
LAN
Reset
DC9-20V
Installing the MBU 400