3com 4070 クイック設定ガイド
20
C
HAPTER
1: I
NTRODUCING
THE
3C
OM
S
WITCH
40
X
0 F
AMILY
WARNING:
When an Expansion Module is not installed, ensure the
blanking plate is fitted by tightening all screws with a suitable tool.
Replaceable Power
Supplies (PSUs)
The Switch 40x0 has a bay for two internal power supplies. Contact your
supplier for further information. For information on installation and
removal, please refer to the documentation that accompanies the
replacement PSU.
supplier for further information. For information on installation and
removal, please refer to the documentation that accompanies the
replacement PSU.
The Switch 40x0 supports the 3Com AC power supply unit (3C17718).
WARNING: The system must not be left without a power supply or a
blanking plate in either of the two slots (except during replacement of
the power supplies). Tighten all screws with a suitable screwdriver.
blanking plate in either of the two slots (except during replacement of
the power supplies). Tighten all screws with a suitable screwdriver.
WARNING: Care must be taken when removing a PSU as it may be hot.
The replacement of power supplies should be completed within two
minutes to avoid normal cooling being disturbed.
The replacement of power supplies should be completed within two
minutes to avoid normal cooling being disturbed.
Power Socket
Each Power Supply automatically adjusts its power setting to any power
voltage in the range 90-240 VAC.
voltage in the range 90-240 VAC.
WARNING: Mains power must be removed from the PSU before
removing the PSU. A PSU must only be powered once it has been
installed.
removing the PSU. A PSU must only be powered once it has been
installed.
Replaceable Fan Trays
The Switch 40x0 is provided with two identical fan trays which can be
replaced. Contact your supplier for further information. For information
on installation, please refer to the documentation that accompanies your
fan tray.
replaced. Contact your supplier for further information. For information
on installation, please refer to the documentation that accompanies your
fan tray.
The Switch 40x0 supports the 3Com Fan Tray (3C17717).
WARNING: A fan tray can be temporarily removed and replaced while
the system is running without impacting operations. The system must not
be left with either fan tray removed for more than two minutes or
damage to the product may be caused. Tighten all screws with a suitable
screwdriver.
the system is running without impacting operations. The system must not
be left with either fan tray removed for more than two minutes or
damage to the product may be caused. Tighten all screws with a suitable
screwdriver.
WARNING: Care must be taken when removing the fan tray as the fan
blades may continue to spin for a short time after removal. Keep fingers
clear.
blades may continue to spin for a short time after removal. Keep fingers
clear.
DUA1770-9AAA04.book Page 20 Monday, April 14, 2003 11:33 AM