8.2
Power Backup
If one of Midspans' power supplies fails, unit maintains full functionality by using an optional backup power supply.
Table 8-1. Power Backup of PDs
Midspan Unit
Redundant Power Supply
PD-9024G/ACDC/M/F
PD-9524G/ACDC/M
PD-9012G/ACDC/M
PD-9024G/ACDC/M/F
PD-9524G/ACDC/M
PD-9012G/ACDC/M
PD-9024G/ACDC/M/F
PD-9524G/ACDC/M
PD-9012G/ACDC/M
PD-9024G/ACDC/M/F
PD-9524G/ACDC/M
PD-9012G/ACDC/M
8.3
Connectors
Power backup and power redundancy connectors are located on the back panel of the Midspan.
PD-90xxG power backup and power redundancy have two connectors as shown in the following figure.
• Power Backup and Power Redundancy Control Signal connector, COM D-Sub: 15 pins, 3 rows female
connector.
• DC Voltage Terminal Block Connector has two positive (+) terminals and two negative (-) terminals.
Figure 8-1. PD-90xxG Rear Panel Connectors
PD-90XXG
Power Backup and Power Redundancy Connection
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2021 Microchip Technology Inc.
and its subsidiaries
User Guide
DS50003153B-page 18
