There are different ranges of ONT's optical power i.e For the ONTs using GPON upstream transmission: -27 dBm to -8 dBm (Class B+); -30 dBm to -8dBm (Class C+).For the ONTs using XG-PON upstream transmission: -28dBm to -8dBm(Class N1a); -28dBm to -8dBm(Class N2a). CISI exam help
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For the Huawei ONTs using GPON upstream transmission: -27 dBm to -8 dBm (Class B+); -30 dBm to -8dBm (Class C+).
For the Huawei ONTs using XG-PON upstream transmission: -28dBm to –8dBm(Class N1a); -28dBm to -8dBm(Class N2a).
There are different ranges of ONT's optical power i.e
For the ONTs using GPON upstream transmission: -27 dBm to -8 dBm (Class B+); -30 dBm to -8dBm (Class C+).For the ONTs using XG-PON upstream transmission: -28dBm to -8dBm(Class N1a); -28dBm to -8dBm(Class N2a).
CISI exam help