Does "dual power supply" mean "redundant power supply"?

Does Cisco7301 "dual power supply" mean "redundant power supply"?
If unplug one power socket, 7301 continues operating?

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On a 7301, I believe it does act as a redundant power supply, and this is often true for many Cisco devices with dual power supplies, but there can be exceptions.  For example, on the 6500 chassis, you might use dual power supplies in combined mode, i.e. failure of a power supply would leave the chassis short of necessary power.  The 3560X/3750X might also have insufficient power if a power supply fails when running on two (this issue may arise when using PoE).

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    This will help us in making our data center's power requirements.
    Pls respond
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    AN

    There is no single correct answer.
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    Hi,
    I need to know how dual power supply works, I mean, when you have two power supplies in a router if both of them are working at the same time, or if one of them is working while the other one only begin to work when the first one stops.
    And if both of them are working at the same time, what is the power consumption, the same as if only one of them was working?
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    marianares0001 wrote:Hi,I need to know how dual power supply works, I mean, when you have two power supplies in a router if both of them are working at the same time, or if one of them is working while the other one only begin to work when the first one stops.And if both of them are working at the same time, what is the power consumption, the same as if only one of them was working?Thanks
    The implementation details can potentially differ per product category but usually the following is applicable:
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    The actual power consumption depends on the power required to run the installed components and is the same whether you use power supplies in redundant or power sharing mode.
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    Thanks for reply.
    In the detailed device view I am able to see that switch has 2 power supply, but but unable to see that its using either only one or both. But I understand your point that if its not visible here then its not possible.
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    Hey Guys,
    I am getting multiple switches on my network showing "power supply failure" from Solarwinds.
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    1A  PWR-C1-715WAC       xxxx           OK                 Good     Good           715
    1B  PWR-C1-715WAC       xxxx         No Response   Good     Good           715
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    1A  PWR-C1-715WAC       xxxx           OK                   Good     Good          715
    1B  PWR-C1-715WAC       xxxx         No Response     Good     Good          715
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    Do you think it is an iOS issue, and should I upgrade? Or has anyone else seen this?

    Hi,
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    "power supply B is not responding" reoccurring on Catalyst switches
    https://tools.cisco.com/bugsearch/bug/CSCun41735/?reffering_site=dumpcr
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    Alas, my (formerly) trusty imac does not power up anymore. Lost of information about the computer and the problem follow, but the ultimate question is:
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    iMac G4 800MHz   Mac OS X (10.3.9)  

    Hello and Welcome to Apple Discussions. 
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    what does doa cover. i mean i brought  a macbook 6 days back and it uses to restart  when its powerd off nd lid closed it has kinda defective power key also. can it be treated as doa

    DOA means different things to different manufacturers. For some DOA means it fails to work out of the box and will be replaced but if it worked out of the box and failed the next day it will be repaired. For other companies there is a liberal return policy - for Apple if you buy direct from Apple (online or an Apple store) you have 14 days to return. That means you can return a defective computer and then turn around and buy a new one.
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     Double check your connections to JFP1, are the case switches and LED(s) connected to the correct pins? Short pins 6-8 JFP1 with a small screwdriver or whatever as a test and see if PSU starts up.

  • Dual power

    Hi,
    I would like to confirm the dual power of 7301. There is only one power supply active even I connect two power cables to the router.
    If there is no electricity to active power supply, the second power supply will take care the role to supply electricity.
    Is it correct?
    rgds

    The chassis supports both single and dual power supplies (AC or DC). "Power supply" slot is a "port adapter" slot. 7301 power supplies are not modular (come as fixed configurations upon purchase as single or dual).
    http://www.cisco.com/en/US/prod/collateral/routers/ps352/ps4972/product_data_sheet09186a008014611a.html
    http://www.cisco.com/en/US/docs/routers/7300/install_and_upgrade/7301/7301_quick_start_guide/5341Q.html#wp34747

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    david
    MacBook Pro   Mac OS X (10.4.8)   also, iMac G4 800MHz

    Hello and Welcome to Apple Discussions. 
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    Use this website to compare part numbers against model.
    If you download (4.2Mb) this service guide there is a troubleshooting section that may help you.
    kind regards
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