In the ultra - long - distance transmission characteristics of our OSN equipment, when the Raman
amplifier is not currently used, 2.5G
Single - span optical power budget can reach ()
Question No 2
Which of the following vendors does not support the dual - plane solution?
Question No 3
SDH ASON network can achieve permanent 1+1 protection is
Question No 4
In long - distance transmission, the usual scheme selection order is BA - >BA+PA - >Backward Raman -
>Front
Backward Raman
Question No 5
Which of the following is not the advantage of the enhanced MSTP built - in PCM solution over the
traditional solution?