Rx and tx of onu side of GPON alcatel asam

Help
1

1.3.6.1.4.1.637.61.1.35.10.18.1.2
these specific oid show the optical power received from ONU in PON port
but i need to get the RX in onu side that is transmitted from PON port
please help me

2

It would be easy if you have a MIB for this.