IBM 8237, Инструкция по установке и эксплуатации

Страница: 99 / 166

4-8
8237 Hub Installation and Planning Guide
Installation, Removal, and Replacement Procedures
Following is the list of replaceable parts in the 8237. If any other part of the 8237 is
damaged or defective, then the 8237 must be replaced.
•
AC power cable
•
Cable management bracket
•
Mounting-bracket hardware
•
Stack Link cable
•
Expansion Ports
•
RMON Daughter Board
•
SIMM memory
•
Fan (base machine)
•
Power supply
Notes:
1. Power cords and Expansion Ports do not come with replacement 8237s. When
you replace an 8237, you must transfer these from the old 8237 to the new one.
2. Replacement RMON Daughter Boards do not include a new memory SIMM.
You must transfer any installed SIMM to the new RMON Daughter Board. See
“SIMM Memory Installation and Replacement” on page 4-13 for instructions.
3. Power supply replacement should be performed only by trained service
personnel.
8237 Hub Replacement
To replace an 8237, perform the steps under "Hot-Swapping 8237s" on page 4-3.
Expansion Port Installation and Replacement
Note: Expansion Ports are NOT hot-swappable. You must remove power from the
8237 before replacing the Expansion Port.
1
Remove power from the 8237 by disconnecting the power cable from the ac
outlet and then from the rear of the 8237.
2
Remove the installed Expansion Port, or blank cover, by turning the two knurled
knobs on the front counterclockwise. Slide the port out of the 8237.
3
Insert the new Expansion Port, ensuring that the edges slide through the guides,
until the connector end is firmly seated.
4
Turn the two knurled knobs on the new Expansion Port clockwise until they are
securely attached to the 8237 frame.
5
Reconnect the communications cable to the new Expansion Port.
6
Reconnect the ac power cable to the wall outlet and then to the 8237.