IBM 8270, Инструкция по установке и обслуживанию

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100 - 240V
6 - 3A 50/60Hz
P/N 72H4648
100 - 240V
6 - 3A 50/60Hz
P/N 72H4648
DC OK DC OK
AC OK AC OK
T
oken-Ring
Processor
Card
P/N
X
X
HXXX
X
FRU
X
XHXXX
X
OK
(EIA
232)
Management
Status
Reset
O
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F
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Token-Ring
Processor Card
UFC Slot 1 UFC Slot 8
Serial
Number
Label
Power
Supplies
Figure 1-3. The 8270-800 Front View
Power Supply
The 8270-600 has a single internal power supply, while the 8270-800 provides the
capability to have two power supplies. Both the 8270-600 and the 8270-800 can
operate on input line voltage from 100—240 volts.
8270-800 Power Supply: The 8270-800 provides two slots for power supplies.
These are the two leftmost slots in the chassis. (see Figure 1-3). At least one
power supply must be installed. The 8270-800 is shipped with a single power
supply installed in the right slot. The left slot is available for installation of an
optional, redundant power supply.
If two power supplies are installed, they share the power load. In the event of a
failure by either supply, the good power supply automatically maintains power for
the entire 8270-800. Operation of the 8270-800 is not disrupted.
The 8270-800 power supplies are hot-pluggable That means they can be removed
and installed while the 8270-800 is powered up. When two power supplies are
installed, hot-plugging allows a failed power supply to be replaced without
disrupting operation of the switch. Both power supplies must have a line cord
connected to ac power.
Figure 1-4 on page 1-4 illustrates the 8270-800 power supply.
Chapter 1. Physical Characteristics and Features
1-3