Nortel Networks NN46200-310 - Manual (Page 26)

26 DC power supply fundamentals
Minimum number of 8005DC power supplies to install
To configure an Ethernet Routing Switch 8300 system, consider the total
power consumption to ensure proper system performance.
The total input power consumption of the components (modules and fan
trays or cooling modules) must not exceed the 8005DC power supply
rating.
To determine the minimum number of power supplies to install for the
Ethernet Routing Switch 8300 system, see
“Determining the minimum
number of DC power supplies” (page 28) .
Redundant power configuration
If a chassis has a redundant power configuration and one power supply
fails, the chassis continues to operate with no interruption of service.
The chassis continues to supply the same module output power with the
remaining power supplies. A trap and syslog message indicates that the
configuration is nonredundant. Nortel recommends that you operate the
Ethernet Routing Switch 8300 system in a redundant configuration at all
times to ensure maximum network performance.
ATTENTION
A redundant power supply ensures that the system does not fail if a single
power supply fails.
If a chassis has the minimum power supply configuration and one power
supply fails, the system loses power and network connectivity.
Nortel Ethernet Routing Switch 8300
Installation — DC Power Supply
NN46200-310 01.01 Standard
9 June 2008
Copyright © 2008 Nortel Networks
.