120 Section 5A: Technical Specifications
LED Operation
Your USB modem has two LED lights. The LEDs operate as follows:
LED State Indicates
Data Off The USB modem has no power. The USB modem
may not be completely inserted into the computer,
the computer may be in suspend mode (Windows)
or sleep mode (Mac); this mode powers down the
USB modem.
Solid
green
The USB modem has power, has found a signal, and
is ready to connect.
Green,
blinking
slowly
The USB modem is powering up, or no service is
available. See “Searching for Service” on page94 (if
you’re running Windows), or “Searching for Service”
on page 113 (if you’re running Mac).
Green,
blinking
rapidly
The USB modem is sending or receiving data.
PWR Off The USB modem has no power. The USB modem
may not be completely inserted into the computer,
the computer may be in suspend mode (which
powers down the USB modem), or, if you’re running
Windows, you have powered the USB modem off
(page 45).
Red The USB modem has power; the battery is low.
Charge the battery by inserting the USB modem into
the USB slot of your computer. Alternatively,
connect the USB modem to the USB extension cable,
and attach the USB extension cable to your
computer.
Green The USB modem has power; the battery is charged.