Cisco UCS X9508 User Manual

To determine the number of power supplies needed for a given configuration, use the Cisco UCS Power
Calculator tool.
LEDs
One LED indicates power connection presence, power supply operation, and fault states. See Interpreting
LEDs, on page 14 for details.
Buttons
There are no buttons on a power supply.
Connectors
The AC power connections are at the rear of the chassis on the Power Entry Module (PEM) to support AC
input from the facility. The chassis has two PEMs (PEM 1 and PEM 2), and each supports 3 power supplies.
• PEM 1 supports PSUs 1, 2, and 3.
• PEM 2 supports PSUs 4, 5, and 6.
Each of the six hot-swappable power supplies is accessible from the front of the chassis. These power supplies
are Titanium efficiency, and they can be configured to support non-redundant, N+1 redundant, N+2 redundant,
and grid-redundant configurations.
Power Supply Configuration
When considering power supply configuration, you need to take several things into consideration:
• AC power supplies are all single phase and have a single input for connectivity to its respective PEM.
The customer power source (a rack PDU or equivalent) connects input power directly to the chassis
power entry module (PEM), not the actual AC power supplies.
• The number of power supplies required to power a chassis varies depending on the following factors:
• The total "Maximum Draw" required to power all the components configured within that
chassis—such as intelligent fabric modules (IFMs), fans, compute nodes (CPU and memory
configuration of the compute nodes).
• The Desired Power configuration for the chassis. The chassis supports non-redundant power supply
configuration, N+1 power supply configuration, N+2 power supply configuration, and grid power
supply configuration, which is also known as N+N redundancy.
• When connecting the chassis to facility power, make sure not to overload the capacity of a PDU or power
strip, for example, by connecting all PSUs to one PDU or power strip that is not capable of carrying the
total power draw of the chassis.
Cisco UCS X9508 Server Chassis Installation Guide
10
Overview
LEDs

Cisco UCS X9508 Specifications

General

Total Slots	8
Supported Server Nodes	Cisco UCS X-Series Server Nodes
Number of Half-Width Slots	8
Number of Full-Width Slots	0
Storage Options	Dependent on server node configuration
Power Supplies	Up to 4 power supplies
Power Supply Redundancy	N+1 redundancy
Cooling	Hot-swappable fans
Chassis Management	Cisco UCS Manager
Dimensions (H x W x D)	32.0 in (81.3 cm)

Summary

Overview

System Overview

Describes the Cisco UCS X9508 Server Chassis and its components within the Cisco Unified Computing System.

Features and Benefits

Details the advantages and capabilities of the Cisco UCS X9508 server chassis.

Chassis Components

Provides an overview of the various physical components of the Cisco UCS X9508 chassis.

Intelligent Fabric Modules

Explains the functions and types of Intelligent Fabric Modules (IFMs) in the chassis.

Power Supplies

Covers the AC power supplies (PSUs) supported by the chassis and their configurations.

LEDs

Explains the function and location of LEDs on the chassis and its components.

Installation

Installation Notes and Warnings for the Cisco UCS X9508 Server Chassis

Provides crucial safety instructions and warnings before installing the chassis.

Rack Requirements

Specifies the necessary requirements for installing the chassis in a rack.

Handling the Chassis

Provides instructions on how to safely handle the server chassis.

Installing the Chassis

Guides the user through the process of installing the chassis into the rack.

Inserting the Chassis into the Rack

Explains how to place the chassis into the installed rack rails.

Removing the Chassis from a Rack

Provides steps to safely remove the chassis from the rack.

Installing and Removing Components

Components

Introduces the components that can be installed or removed from the chassis.

Installing and Removing a Compute Node

Guides on installing and removing compute nodes.

Installing and Removing Power Supplies

Instructions for installing and removing power supply units (PSUs).

Replacing the Power Entry Modules (PEMs)

Guides on replacing the Power Entry Modules (PEMs).

Installing and Removing a Fan Module

Covers installing and removing fan modules.

Installing and Removing an Intelligent Fabric Module

Guides on installing and removing Intelligent Fabric Modules (IFMs).

Recycling Printed Circuit Boards

Information on how to recycle printed circuit boards.

Technical Specifications

Chassis Specifications

Lists the physical dimensions and capacities of the chassis.

Environmental Specifications

Provides environmental operating conditions for the chassis.

Specifications for the Cisco UCS X9508 Chassis Power Supply Units

Lists the technical specifications for the chassis power supply units.

Site Planning and Maintenance Records

Site Preparation Checklist

A checklist for preparing the installation site.

Contact and Site Information

Worksheet to record contact and site details.

Chassis and Module Information

Worksheet to record chassis and module serial numbers.