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Powering Up and Stacking the SEHI
SEHI100TX User’s Guide 4-7
4.5 POWERING UP AND STACKING THE SEHI
The following section details the procedures that must be followed to
power up and interconnect stacked hubs.
1. Power up the SEHI by plugging the power cord into the back panel of
the SEHI and plugging the other end into a grounded receptacle.
2. Verify that the PWR LED is on, indicating that the SEHI is receiving
power. After the SEHI runs a self test and completes the boot process
successfully, the CPU LED blinks green indicating normal operation.
If the LED remains red, the processor is faulty; contact Cabletron
Systems Technical Support. Do not proceed with the following steps
until the CPU LED is a steady blinking green.
!
CAUTION
Failure to follow this procedure may result in damage to the
equipment.
!
CAUTION
If you are using an intelligent hub (SEHI) to manage the stack,
you must locate the SEHI at the bottom of the stack.
The SEHI must be completely powered up and initialized
before powering up and interconnecting the rest of the stack.
NOTE
The SEH and the SEHI have universal power supplies that
allow connection to power sources from 100 Vac to 125 Vac
@ 4.0 A or 200 Vac to 250 Vac @ 2.0 A, 50/60 Hz.
NOTE
Locate the SEHI at the bottom of the stack.
For management purposes, stacked hubs are always
numbered from 1 to 5 starting at the bottom.
!
CAUTION
Do NOT power up or interconnect any other hubs in the stack
until the SEHI has successfully completed the boot process.