Installing additional blade and power rectifiers

Anthony Chan · ‎03-23-2012

currently we have an existing Codian MSE 8000 Blade that already have 5 blades in total:

MSE Supervisor

HD Blade 8510 x 3

ISDN Blade

have 8 Power Rectifiers installed

we purchased 2 more additional 8510 HD Blades and 2 Power Rectifiers

I was able to find the installation instructions for the blades (seems very straight forward) but was not able to find the installation for the Power Rectifiers

Since we have 8 installed, 3 is not being utilized or powered on wondering if we need to install the additional two new ones?

thanks for your input

Anthony

sagsheth · ‎03-23-2012

Hi Anthony,

The number of power rectifier required depends upon the numbers of blades and their individual power requirements.

I don't exactly recall the power requirements for each blade. However you can do following.

-.Each blade and fan tray is labeled with current requirement that can be used together.

- Find out the total requirement by summing the current values from all blades and fan tray.

- Use these table.

Total current requirement (Amps) Rectifiers required per power shelf

Up to 20A 1

Up to 40A 2

Up to 60A 3

Up to 80A 4

Hope this helps.

-Sagar

sagsheth · ‎03-23-2012

try this,

http://www.cisco.com/en/US/partner/docs/telepresence/infrastructure/articles/mse_8000_calculate_power_current_requirements_kb_386.shtml

-Sagar

shkn · ‎03-24-2012

Even though your current power requirement can be managed by 3 rectifiers(Correct me if I am wrong , it is always better to add more (for redundancy, in case of failure of a live rectifier) . But yes.. installing/using all the power rectifiers of yours will result in large volume of power wastage. The link provided by Sagar will give you a better understating on the current power requirement.

Consultation with your Pre-Sales team will give you a better understanding on how to use the existing setup more efficiently.

Regards

Shyam