Cabletron Systems 3Com Manual De Usuario

C

HAPTER

 2: I

NSTALLING

 A

CCESS

 P

OINT

 

HARDWARE

Check the following symptoms and their possible causes before contacting the 
3Com Support Center.

1 If the AP does not power up, you may be experiencing one of the following:

■

Faulty AP power supply

■

Failed AC supply

■

Electrical Management System (EMS) operating outlet

2 After the AP resets and hardware is initialized, it performs an SRAM test. If the test 

passes, all three LEDs turn on. If the test fails, the LEDs all turn off and the AP 
resets. The LEDs turn off sequentially, in the order shown, as each of the following 
tests pass.

Identify wired network problems:

3 No operation:

■

Verify AP configuration via Telnet, PPP or UI. Review procedures for Ethernet 
and serial connection of the AP. Review AP firmware revisions and update 
procedures.

■

Verify network configuration by ensuring that there are no duplicate IP 
addresses. Power down the device in question and ping the assigned 
address of the device. Ensure no other device responds to that address.

4 AP powered on but has no connection to the wired network: 

■

Check connections for proper wiring.

Power

Blinks 
continuously

Bootup and run-time codes 
downloaded to AP flash memory 
successful. Run-time code controls the 
AP.

Wireless LAN Activity

Off

Serial port initialized, FIFO buffer 
flushed, serial port to AP connection 
checked.

Wired LAN Activity

Off

LAN adapter present.