You will definitely have to be more accurate in your question for it to be answered.
If you had to reframe your question a bit it would look something like this.
"Does GPON & ADLS 2 support both atm (Which is also no longer used) & ptm ( Pulse-Time Modulation)
Which the answer is, Yes for ptm.
But atm would be a no. As that protocol is quite an old and not widely used anymore.