Cisco Switch Power Requirement

[SafirXP]

We got a Cisco 6506-E switch for the office. It comes with a four port 10Gbps expansion module, a 48 port 1Gbps module and two redundant 3000W PSUs. It has room for adding another 6 expansion modules.

 

Problem is that our UPS supports 3kVA. I'd like to know if the switch will pull 3000-6000W at startup? Or will it pull that amount when all the modules are plugged in and all ports are being used? Common sense says it should pull only the amount it needs but you never know, hence this post..

[MrKickkiller]

It will probably draw 3000W fully loaded and directing traffic and perhaps injecting power (POE)

Startup will only maybe be like 30-50W or so.

[dzonidev]

We got a Cisco 6506-E switch for the office. It comes with a four port 10Gbps expansion module, a 48 port 1Gbps module and two redundant 3000W PSUs. It has room for adding another 6 expansion modules.

 

Problem is that our UPS supports 3kVA. I'd like to know if the switch will pull 3000-6000W at startup? Or will it pull that amount when all the modules are plugged in and all ports are being used? Common sense says it should pull only the amount it needs but you never know, hence this post..

Here's a useful power consumption table. Find your parts, add it all up, and you will have an estimate of the power consumption.

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/hardware/Chassis_Installation/Cat6500/6500_ins/0dpwrht.html

[Footy]

We got a Cisco 6506-E switch for the office. It comes with a four port 10Gbps expansion module, a 48 port 1Gbps module and two redundant 3000W PSUs. It has room for adding another 6 expansion modules.

 

Problem is that our UPS supports 3kVA. I'd like to know if the switch will pull 3000-6000W at startup? Or will it pull that amount when all the modules are plugged in and all ports are being used? Common sense says it should pull only the amount it needs but you never know, hence this post..

Plug one psu into the ups and one into dirty mains?

[Blade of Grass]

It shouldn't pull 6kW on startup, so you should be fine. It's only going to pull 3kW when it's loaded with PoE and everything else.

[SafirXP]

Thanks guys. Feel less worried now. Was afraid that we've to get another UPS, which are very expensive, esp. with long backup.