Chapter 1: Introduction
1-2
DLM6C-AA Overview and Setup Guide
1.2
FEATURES
Redundant Power Supply Modules
The DLM6C-AA supports two power supply modules that reside in the
slots labeled PS1 and PS2.
The DLM6C-AA ac power supply module (HA205-AA) supports an ac
input connector that allows the power supply to be connected to a separate
ac power source. DIGITAL also offers a dc power supply module
(HA205-MD) that supports a dc input connector that allows the power
supply to be connected to a separate dc power source. In addition, two
power supply modules are capable of load sharing 50% (+/- 5%) of the
total load presented by the DLM6C-AA. If one of the power supply
modules fails, the other power supply module supplies the entire load of
the chassis without interruption to network traffic.
Power Supply LANVIEW LEDs
Each power supply module comes equipped with LEDs for at-a-glance
diagnostics that indicate individual power supply status and overall
chassis redundancy status. Refer to
Chapter 2
,
Installation
Requirements and Specifications
, for a full explanation of the power
supply LEDs and their definitions.
Power Supply Status Using Local Management
The DLM6C-AA power supply modules report information to the
modules installed in the chassis regarding the present operating status.
This information includes the following:
•
Power Supply ID (PS1, PS2)
•
Power Supply Status (normal/fault/not installed)
•
Power Supply Redundancy Indication (redundant/not available)
•
Fan Tray Status (normal/fault/not installed)
!
If the DLM6C-AA is configured with a single power supply
module, it must be located in slot PS1.
Installing one ac power supply and one dc power supply in the
same chassis is NOT allowed.
