Allied Telesis AT-GS900/24 - Manual (Page 36)

Chapter 2: Installation
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crossover twisted pair cable to connect any type of network device
to a port on the switch. If you disable Auto-Negotiation on the port,
the port defaults to MDI-X.
5. Apply AC power to the switch by plugging the power cord into the AC
power connector on the back panel of the unit, as illustrated in
Figure 6 on page 33.
6. Plug the other end or the power cord into a wall outlet.
7. Verify that the POWER LED is green. If the LED is OFF, refer to
“Troubleshooting” on page 41 for instructions.
Note
The switch perform a self-diagnostic test upon power up. This takes
about 20 seconds to complete.
8. Power ON the end-nodes connected to the switch.
9. Check that all the L/A LEDs are green or blinking green for the ports
connected to end-nodes. If any of the LEDs are OFF, refer to
“Troubleshooting” on page 41 for instructions.
The switch is now ready for use.