Sam Sirius 830, Инструкция по установке и быстрому запуску

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Sirius 830 Installation Manual www.s-a-m.com Prerequisites
Issue 2 Rev 2 Page 18 © 2016 SAM
3.4.5 Power Supply Redundancy
To ensure full dual redundancy, half of the power supplies should be powered from a separate
power source to the other power supplies. Under normal operating conditions with dual power
sources, each power supply unit runs at less than 50% loading.
The number of power supply shelves should be selected based on the mains supply
operating voltage and router configuration, see Table 1. for information.
To reduce the risk of electric shock, plug each power supply shelf into separate branch
circuits employing separate service grounds.
Router Configuration
Mains Supply
(V AC)
Number of Power Supply
Shelves and Units Required
for Redundancy
All router configurations 220 - 240 V AC
Nominal
1 Shelf
4 Power Supply Units
Typical router configuration of less than
12 video AHP modules
(5919/5949/5915/5925) fitted in the router
100 - 120 V AC
Nominal
1 Shelf
4 Power Supply Units
If 12 or more video AHP modules
(5919/5949/5915/5925) are fitted in the router 100 - 120 V AC
Nominal
2 Shelves
6 Power Supply Units
Table 1. Sirius 830 Power Supply Redundancy
Important:
• If the router is expanded from its initial configuration check Table 1. to see if extra
power supply shelves are required.
• It is the responsibility of the Sirius 830 installer to ensure any AC power
requirements are met.