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•
The power supplies are 1U, 48V, 1200W
•
The supplies provide regulated +48V DC to all other modules in the system.
•
Each power supply has self contained fans for cooling.
Fan Trays
Refer to
"Installing a Fan Module" on page 41
The fan trays are redundant, hot-swappable cooling units.
•
Only one fan tray, in either of the two slots, is required to cool the system. However, a blanking
panel is required for any unused bay.
•
The replacement of any one fan tray does not disrupt the operation of the device in any way, and
can be successfully completed without having to remove the device from a rack, or disconnect any
cables.
•
The fan modules use DC Voltage regulators to control fan speed and contain a hardware fan control
circuit, which controls and monitors the fan speed.
•
The fan module will default to full speed after a power-on or reset condition.
•
If one the fans fails, the redundant fan will go to full speed (if one is available).
CAUTION: The fan modules do not have guards. Do not remove a fan module completely from the
bay until the blades have stopped moving (approximately 15 seconds).
Management Interface Modules
See
Figure 1-2 on page 14
Refer to
"Installing a Management Interface Module" on page 50
The Topspin 270 supports redundant, hot-swappable Management Interface modules, each of which is
paired to one of the Fabric Controller Core modules.
The Management Interface modules provide the following functions:
•
RS-232 serial console port
•
10/100 Ethernet management port
•
System real time clock (RTC)
•
Intra-system Ethernet switch, which provides a system configuration management data-path to all
fabric modules.
•
Provide mirrors of the LED indicators from the front side of the chassis for the power supply, fans,
and over-all system status. (refer to
•
Rack Alarm Connection (refer to
Ethernet
Redundant
Port
LEDs
Figure 1-5: Management Interface Module
for installation instructions.
for a diagram of the chassis.
"Management Interface Module LEDs" on page
"Rack Alarm" on page
Rack Alarm
Serial
(not supported)
Port
for installation instructions.
19).
17
71).
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