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Chapter 4: Cabling the Modular Switch
Power Supply Redundancy
Quick Start Guide: 750 Series Modular Switches
27
4.5.1
Recommendations for power supply usage
•
Use separate circuits (A & B) with required protection for each power supply.
•
Use the same PSU model when replacing a failed PSU. Any suitable alternative must be
approved before using if the original model is no longer supported or available.
•
Unless your switch allows for mixing power supplies, do not mix power supply types.
•
Populate the PSU slots sequentially.
•
Valid redundancy configurations for each domain are described in
section.
4.6
Power Supply Redundancy
Important!
Installation of this equipment must comply with local and national electrical codes. If necessary, consult
with the appropriate regulatory agencies and inspection authorities to ensure compliance.
Installation de cet équipement doit être conformes aux codes électriques locaux et nationaux. Si
nécessaire, consulter les organismes de réglementation appropriés et des autorités de contrôle pour
assurer la conformité.
Important!
Read all installation instructions before connecting the system to the power source.
Lire toutes les instructions d'installation avant de brancher le système à la source d'alimentation.
Most installations will have redundant, dual, independent power feeds. Each independent power feed
will be referenced as A and B.
•
The recommended installation is to wire each supply to independent power feed (A or B).
Each power supply includes a fan that maintains proper power supply temperature. The following
appendices display the location of the following component on all switches described in this guide.
displays the front panel location of the supervisor modules and line cards.
displays the rear panel location of switch card modules (not visible), fans, and PSUs.
Important!
This unit requires over-current protection.
Cet appareil nécessite de protection contre les surintensités.
Important!
Unused slots must be occupied or covered with a blank to ensure proper airflow through the chassis.
Les emplacements inutilisés doivent être occupés ou recouvert d'un blanc pour assurer la bonne
circulation d'air dans le châssis.
4.7
Connecting Supervisor Cables
Supervisor modules contain console, management, and USB ports.
and
display
port and status LED locations on the supervisors. Refer to the chassis specification in
for
additional information about the serial port.
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