Copyright © July, 2011
Microsemi
Page 26
Rev.A03
Analog Mixed Signal Group
2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, ROW: (949) 221-7100 Fax: (949) 756-0308
8 Power Backup and Power
Redundancy Connection
90xxG has two options for ensuring continuous power supply:
Power
Redundancy
Power
Backup
8.1 Power
Redundancy
PowerDsine's power redundancy mode is available in 90xxG Midspan
series. This mode enables internal power supply backup for two
Midspans connected to each other. This mode provides seamless failover
between two Midspans. If one of the two Midspans' internal power
supplies fails, failure is detected automatically and working power supply
provides power to Midspan. Both Midspans are ensured continuous
uptime and all active ports continue to operate without any effect on
connected powered devices.
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
: When using power redundancy option, connect together only units
that share the same power supply:
1Kw power supply units
o
PD-9024G/ACDC/M/F
o
PD-9524G/ACDC/M
o
PD-9512G/ACDC/M