0 dbm = 1 mW
x dbm = 10 log (P / 1 mW)
P mW = 10^(x/10)
P (mw) x dbm
--------------------
1 0
10 10
100 20
1000 30
P (mw) x dbm
--------------------
1 0
0.1 -10
0.01 -20
0.001 -30
Standar GPON Port
TX : range -5 dbm sd +5 dbm
TX : 0 dbm (1 mw)
Received by ONT > -27 dbm (syarat sync dg OLT)
http://www.rapidtables.com/convert/power/dBm_to_mW.htm
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