What means E13/M13/E3/T3 on PQ3 of OSN7500
1731.E3=34M,T3=45M
2 E13/M13 function that menas perform E1 signal or T1 signal multiplex and demultiplex with E3/T3
1.E3=34M,T3=45M
2 E13/M13 function that menas perform E1 signal or T1 signal multiplex and demultiplex with E3/T3