ZyXEL Communications NSA221 Quick Start Manual page 14

2. Use the included power
supply and power cord to
connect the POWER socket
on the rear of the NSA to a
power outlet.
Use ONLY the included power
adapter.
3. Press the power button on the front of the NSA to
turn it on. Look at the front panel lights.
If no lights turn on, make sure the power cord is
not loose and that the power source is turned on.
• The power button light turns steady
blue.
• The SYS light turns steady green
after a successful startup (it takes
about 50 seconds).
• The HDD lights come on if the NSA
detects hard drives in the disk
bays.
• The rear panel LAN port has a light
that turns on if the Ethernet port is
properly connected to your network. It blinks while
sending or receiving traffic.
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