Cisco Cisco D9804 Multiple Transport Receiver Installationsanleitung
Chapter 3 Installation
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Rack Installation
The receiver is supplied with two power supplies that provide redundant power
with no single point of failure. Operation requires both supplies to be powered up
and switched on. Each power supply should be powered from a separate mains
branch circuit, in order to ensure redundancy.
with no single point of failure. Operation requires both supplies to be powered up
and switched on. Each power supply should be powered from a separate mains
branch circuit, in order to ensure redundancy.
The DC outputs from both power supplies are combined together in a current-
sharing scheme so that the total load is shared.
sharing scheme so that the total load is shared.
Power Connection
To operate the MTR, you must connect it to an AC power source. For information
about connecting the chassis to AC power, see Appendix B - Technical Specifications
(on page 163).
about connecting the chassis to AC power, see Appendix B - Technical Specifications
(on page 163).
As Cisco units are designed for continuous operation, some products do not have a
power switch. In this case the mains cord and/or DC power supply cable serve(s) as
the mains disconnect device.
power switch. In this case the mains cord and/or DC power supply cable serve(s) as
the mains disconnect device.
WARNING:
Make sure that at least one end of the power cable(s) remains
easily accessible for unplugging, if you need to switch off the unit.
For example: Ensure that the socket outlet is installed near the
product.
easily accessible for unplugging, if you need to switch off the unit.
For example: Ensure that the socket outlet is installed near the
product.
WARNING:
To avoid electrical shock, connect the three-prong plug on this
product to an earth-grounded three-pin socket outlet only.
product to an earth-grounded three-pin socket outlet only.