Thank you for correcting my terminology and validating the concept I put forward. The nearly unanimous answer of "splitter," had me wondering if I might be guilty of some Mickey Mousery. I've done this several times and never had a problem. And I've seen it done by others too.
There are some scenarios where it wouldn't work, but that's why I prescribed the voltage checks. If it won't work, then it won't work, ever. If it will work, and it worked on day#1, I don't expect that it would "eventually" affect the performance. What kind of long-term degradation are you expecting this to cause?
I just afraid because the application itself is critical and bad consequences may happen to the equipment if any mistake happened at anytime. that why I must apply the best and more stable solution not the easiest one. anyway I really appreciate your help, your tip was extremely precious to me.