Apple MacBook (13-inch, Early 2009) - Manual (Page 11)

Chapter 1 Ready, Set Up, Go 11
When you first connect the power adapter to your MacBook, an indicator light on the
MagSafe connector starts to glow. An amber light indicates that the battery is
charging. A green light indicates that the battery is fully charged or is not installed.
If you don’t see a light, make sure the connector is seated properly.
Step 2: To access the Internet or a network, connect one end of an Ethernet cable
to your MacBook and the other end to a cable modem, DSL modem, or network.
To use a dial-up connection, you need the external Apple USB Modem, available for
purchase from the online Apple Store at www.apple.com/store or from an Apple
Authorized Reseller. Plug the Apple USB Modem into a USB port on your MacBook,
and then connect a phone cord (not included) from the modem into a phone wall jack.
G
Ethernet
cable
Gigabit Ethernet port
(10/100/1000Base-T)