Sirius 800 Series User Manual
Power Supply Redundancy
Router Power Supply Shelf Requirements B.1
Iss 5 Rev 7
Page 306
© 2017 SAM
B.1.3 Sirius 850: Power Supply Shelf Requirements
The number of power supply shelves should be selected based on the mains supply
operating voltage and router configuration, see Table 94 for information.
See Appendix B.2 for power shelf, PSU and power cable order codes.
To reduce the risk of electric shock, plug each power supply shelf into separate branch
circuits employing separate service grounds.
Sirius 850 Router Configuration
Mains Supply
(V AC)
Number of Power Supply
Shelves and Units Required
for Redundancy
Typical router configuration of less than
20 video AHP modules
(5919/5949/5915/5925) fitted in the router
and
no 5928 expansion output modules
fitted (outputs above 576 or expansion to a
second frame)
100 - 120 V AC
Nominal
2 Shelves
8 Power Supply Units
4 DC Cables
If 20 or more video AHP modules
(5919/5949/5915/5925) are fitted in the
router
and
any 5928 expansion output
modules are fitted (outputs above 576 or
expansion to a second frame)
100 - 120 V AC
Nominal
3 Shelves
12 Power Supply Units
6 DC Cables
All router configurations
220 - 240 V AC
Nominal
2 Shelves
8 Power Supply Units
6 DC Cables
Table 94
Sirius 850 Power Supply Redundancy
Important:
•
If the Sirius 850 router is expanded from its initial configuration check Table 94 to
see if extra power supply shelves are required.
•
It is the responsibility of the Sirius 850 installer to ensure any AC power
requirements are met.
