Connecting powercord between iMac and APC UPS 350?

The iMac power cord at one end is connected to the back of the device at bottom. This is a female-type 3 terminal IEC. The other end of cord (male-type) goes to the power outlet mains or the UPS. Recent UPS models by APC have terminals that can take this male-type connection. This means that the UPS models have female-type terminal similar like a power mains.

I have a 5 year old APC UPS which does not have such a 'powermain' type of connection. The outlets on my UPS are same like that found at the bottom back of the iMac - 3 slits. These type of UPS normally used for power backup for PC's. Normally the CPU and Monitor of a PC will have these type of IEC cables.

For example image, you can see the APS model:

http://www.apc.com/resource/include/tech...

This is not exactly the model that I have, but the image gives an idea as to what type of outlets are found on my UPS.

My question: How do i connect the iMac to the UPS? Are converter IEC cables available which can be connected between the power cord of iMac and the power outlet of UPS?