Raspberry pi 2 through PL2303HX USB to ttl

[deep4U]

Hi
As this is for GT511C3 and I have GT511C1R module I am confused little bit.
I do know that both are very similar and have used arduino library of GT511C3 on the same
But unsure about image upload/download implementation of bot as Arduino library does not support
Also I want to use it with raspberry pi 2 and PL2303HX USB to ttl so that I can easily connect both
Raspberry pi 2 USB port :-> ttl :-> GT511C1R
I will have a serial port through this converter which I can use.But still want to ensure that It should work.
Also do I need potential divider between the ttl and FPS module same as arduino interfacing
I should be able to do everything image upload/download authentication identification enrolling etc
Thanks