The DC version of the PDU has eight dual-post lug power connections, four positive and four negative. A
single dual-post lug grounding connection is also provided. The HDVC version of the PDU uses one Andersen
SAF-D-GRID(R) connector per power supply.
Fan Modules
The chassis can accept up to eight fan modules (N20-FAN5). A chassis must have filler plates in place if no
fan will be installed in a slot for an extended period.
LEDs
There is one LED indication of the fan module
’
s operational state. See
Interpreting LEDs, on page 36
for
details.
Buttons and Connectors
No buttons or connectors are on a fan module.
Power Supplies
Different power supplies are available to work with the AC (UCSB-PSU-2500ACPL or N20-PAC5-2500W)
or DC (UCSB-PSU-2500DC48) versions of the chassis.
When configured with the Cisco UCS 6324 Fabric Interconnect, only the following power supplies are
supported: UCSB-PSU-2500ACDV dual-voltage supply and UCSB-PSU-2500DC48 -48V DC power supply.
To determine the number of power supplies needed for a given configuration, use the
tool.
LEDs
Two LEDs indicate power connection presence, power supply operation, and fault states. See
LEDs, on page 36
for details.
Buttons
There are no buttons on a power supply.
Connectors
The power connections are at the rear of the chassis on the PDU, with different types for AC, DC, or HVDC
input. Four hot-swappable power supplies are accessible from the front of the chassis. These power supplies
can be configured to support non-redundant, N+1 redundant, and grid-redundant configurations.
Cisco UCS 5108 Server Chassis Installation Guide
31
Overview
Fan Modules