![](http://pdfasset.owneriq.net/a/c9/ac905b8b-e463-4d00-ba4b-e7454374115b/ac905b8b-e463-4d00-ba4b-e7454374115b-bg7.png)
7
The MVL modem hardware installation is now complete. When the power cord is
installed, the MVL modem goes through a power-on self-test.
Power-On
When power is applied, the MVL modem performs self-diagnostics and the PWR LED
is on. The self-diagnostics includes a power-on self-test and all of the LEDs turn on for
one second.
TST
LINE
ETHERNET
ALMPWR
TM
99-15896-01
Power – green
Alarm – red
Test – yellow
Transmit/Receive – green
Ethernet Link – green
MVL
MODEM
TX/RX
Multiple Virtual Lines – green
Refer to Troubleshooting on page 8 for LED indications requiring action.