ZyXEL Communications ONU-6040B-21 User Manual page 3

1 PON: Connect an SC-type, single-mode optical cable to
the PON port for Internet access.
To avoid possible eye injury, do NOT look into
an operating fiber-optic module's connector.
2 LAN: Use the included Ethernet cable to connect the LAN
port to a computer.
3 POWER: Use the included power adaptor to connect this
power socket to an appropriate power source. Push the
power switch to the on position.
1.1 Check the LEDs (Lights)
• The POWER LED turns steady on when you connect the
ONU-6040B-2x to the power supply.
• The PON LED turns on when the fiber connection is avail-
able.
• The LAN LED turns on when the LAN port is properly con-
nected.
ONU-6040B-2x Series User's Guide
3