The question is a bit confusing. If you are trying to use a DP-710 that WAS installed on a C4035E and you want to install it on a C2525e then the answer is yes. If you are trying to install it onto a C4035E FROM a C2525E, then it depends on the serial number of the DP-710. If you look at tech bulletin 1 for the C4035E it will give you the information you need. Basically, if the s/n of the DP-710 is PAQ7517537 or above, then it will work on either device.