Sierra Wireless 595U manual LED Operation, State Indicates Data

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	The USB modem has power, has found a signal, and
	green	is ready to connect.
	Green,	The USB modem is powering up, or no service is
	blinking	available. See “Searching for Service” on page 94 (if
	slowly	you’re running Windows), or “Searching for Service”
		on page 113 (if you’re running Mac).
	Green,	The USB modem is sending or receiving data.
	blinking
	rapidly
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.

120 Section 5A: Technical Specifications