電源適配器不匹配會帶來哪些寬帶問題?
What broadband problems will the power adapter mismatch bring?
故障現(xiàn)象:
Failure phenomenon:
在光纖入戶中,出現(xiàn)了直播電視可以正常收看,但是寬帶和互動節(jié)目不能正常使用。
In the optical fiber into the home, there is live TV can be normal watching, but broadband and interactive programs can not be used normally.
處理過程:
Process:
高清機頂盒、ONU和路由器面板上的電源指示燈均正常亮起。觀察到ONU光纖E信號燈不正常(無信號該燈為紅燈),光纖C信號燈正常。使用光功率計測試寬帶信號,信號指標正常。
The power indicators on the HD set top box, ONU and router panel are all on the normal side. It is observed that the ONU fiber E signal lamp is abnormal (no signal is red light) and the C signal lamp is normal. Using optical power meter to test broadband signal, the signal index is normal.
查看所有設備的電源發(fā)現(xiàn)ONU電源適配器和金錢貓路由器電源適配器對換接了。由于瑞斯康達標稱電壓和電流是12V,1A,金錢貓路由器電源適配的標稱電壓和電流施9V,0.6A,由于電壓不夠?qū)е翺NU不能正常工作的原因(onu的面板指示燈會亮起,也可正常解調(diào)出來射頻信號,但無法解調(diào)出寬帶的信號)。將兩個電源適配器對換過來互動和寬帶可以正常使用了。
View the power of all devices found ONU power adapter and money cat router adapter. Because the voltage and current of the RRC is 12V, 1A, the nominal voltage and current of the power of the money cat routers apply 9V, 0.6A, because the voltage is not enough to cause the ONU to work properly (the ONU's panel indicator lights up, and the RF signal can be demodulated normally, but the broadband signal can not be demodulated). The two power adapters can be switched to interact and broadband can be used normally.