Cabletron Systems 3T02-04 - Manual (Page 35)

Token Ring Switch Module User Guide Page 5-1
CHAPTER 5
DIAGNOSTICS AND TROUBLESHOOTING
5.1 POWER-UP DIAGNOSTICS
5.1.1 Power-up Tests
The power-up diagnostics assure that the ATX and all the installed
modules are operational. During diagnostic mode, the status LEDs are
used differently than during normal operation.
When the ATX is powered-up, it automatically senses the installed boards
and reassigns port numbers starting with the PPE as port 1.
During a normal power-up test, the diagnostics test the entire ATX
starting with the PPE and proceeding slot by slot from the top down. The
normal power-up sequence is described in Chapter 2, Connecting to the
Network.