8.
Power Backup and Power Redundancy Connection
PD-90xxG has two options for ensuring continuous power supply:
• Power Redundancy
• Power Backup
8.1
Power Redundancy
Microchip 's power redundancy mode is available in the PD-90XXG Midspan series. This mode enables internal
power supply backup for two inter-connected Midspans. This mode provides seamless failover between two
Midspans. If internal power supplies of one of the two Midspans fails, it is detected automatically and a working
power supply provides power to the Midspan. Both the Midspans are ensured continuous uptime and all the active
ports continue to operate without any effect on the connected PDs.
Power redundancy mode is available in the following midspans.
• PD-9024G/ACDC/M/F
• PD-9024G/ACDC/M
• PD-9012G/ACDC/M
• PD-9006G/ACDC/M
• PD-9524G/ACDC/M
• PD-9512G/ACDC/M
• PD-9506G/ACDC/M
• PD-5524G/ACDC/M
Note:
While using power redundancy option, connect only units that share the same power supply:
• 1 Kw power supply units
– PD-9024G/ACDC/M/F
– PD-9524G/ACDC/M
– PD-9512G/ACDC/M
• 450W power supply units
– PD-9024G/ACDC/M
– PD-9012G/ACDC/M
– PD-9006ACDC/M
– PD-9506G/ACDC/M
– PD-55XXG/ACDC/M
WARNING
While connecting the power redundancy connectors, make sure that the AC power in both the Midspans is
disconnected from the AC mains.
PD-90XXG
Power Backup and Power Redundancy Connection
©
2021 Microchip Technology Inc.
and its subsidiaries
User Guide
DS50003153B-page 17
