1. A method for designing a lookup table stored in memory of an optical transceiver for use by the optical transceiver to schedule analog conversion to digital conversion of multiple analog signals using a single analog-to-digital converter, the method comprising: determining a sampling rate for each analog signal (F i ) for a total number of N signals; calculating an overall sampling rate required (F O ); choosing an A/D converter whose sampling rate is equal to or above the overall sampling rate and has enough channels to connect with all N signals; determining a greatest common divisor (F D ) among the N signals; allocating a lookup table having a number of channels being M=F O /F D in the memory of an optical transceiver; and filling in channel# for F i /F D elements in the lookup table for each signal.