When using a connector for optical fiber connection, if the connector is not continuous, it will cause . A: Optical power cannot be transmitted B: Fresnel reflection of optical power C: Scattering loss of optical power D: Part of the scattering loss of optical power or return to the transmitting end in the form of reflection
When using a connector for optical fiber connection, if the connector is not continuous, it will cause . A: Optical power cannot be transmitted B: Fresnel reflection of optical power C: Scattering loss of optical power D: Part of the scattering loss of optical power or return to the transmitting end in the form of reflection
无源光网络由哪些部分构成？( ) A: A.OLT（Optical Line Terminal）－光线路终端 B: B.ONU（Optical Network Unit）－光网络单元 C: C.ONT（ Optical Network Terminal）－光网络终端 D: D.ODN（Optical Distribution Network）－光分配网
无源光网络由哪些部分构成？( ) A: A.OLT（Optical Line Terminal）－光线路终端 B: B.ONU（Optical Network Unit）－光网络单元 C: C.ONT（ Optical Network Terminal）－光网络终端 D: D.ODN（Optical Distribution Network）－光分配网
According to , optical fiber movable connectors can be divided into two types: aligning type and non-aligning type. A: Connection method B: Structure C: Optical fiber mutual contact relationship D: Optical fiber type
According to , optical fiber movable connectors can be divided into two types: aligning type and non-aligning type. A: Connection method B: Structure C: Optical fiber mutual contact relationship D: Optical fiber type
Optical fiber communication refers to: 光纤通信指的是：
Optical fiber communication refers to: 光纤通信指的是：
智慧职教: ODF（Optical Distribution Frame）指的是（ ）。
智慧职教: ODF（Optical Distribution Frame）指的是（ ）。
When measuring the optical power, we should first ensure that the input optical power difference of each channel of the OMU is within ( ). A: 1dB B: 2dB C: 3dB D: 5dB
When measuring the optical power, we should first ensure that the input optical power difference of each channel of the OMU is within ( ). A: 1dB B: 2dB C: 3dB D: 5dB
In the OSNR model for EDFA amplifiers， SNR OUT = 1/（1/SNR IN + FhvB/P IN ）， what does SNR IN represent？（） A: the signal to noise of the current optical amplifier B: the signal to noise of the previous amplifier or source C: the signal to noise introduced by the optical multiplexer D: the accumulated noise to signal ratio of the optical channel
In the OSNR model for EDFA amplifiers， SNR OUT = 1/（1/SNR IN + FhvB/P IN ）， what does SNR IN represent？（） A: the signal to noise of the current optical amplifier B: the signal to noise of the previous amplifier or source C: the signal to noise introduced by the optical multiplexer D: the accumulated noise to signal ratio of the optical channel
What two descriptions best define DWDM？ （） A: a WDM system that is compatible with EDFA technology B: an optical technology for transmitting up to 16 channels over multiple fiber strands C: an optical technology for transmitting up to 32 channels over multiple fiber strands D: a technology for transmitting multiple optical signals using less sophisticated transceiver designthen CWDM E: a technology for transmitting more closely packed optical signals using more sophisticatedtransceiver designs than CWDM
What two descriptions best define DWDM？ （） A: a WDM system that is compatible with EDFA technology B: an optical technology for transmitting up to 16 channels over multiple fiber strands C: an optical technology for transmitting up to 32 channels over multiple fiber strands D: a technology for transmitting multiple optical signals using less sophisticated transceiver designthen CWDM E: a technology for transmitting more closely packed optical signals using more sophisticatedtransceiver designs than CWDM
PON是一种典型的无源光网络，以下属于PON组网架构组成的是（） A: OLT（Optical Line Terminal）光线路终端 B: ONU（Optical Network Unit）光网络单元 C: ODN（Optical Distribution Network）光分配网络 D: AON（Active Optical Network） 有源光网络 E: SFU（Single Family Unit） 单家庭住户单元
PON是一种典型的无源光网络，以下属于PON组网架构组成的是（） A: OLT（Optical Line Terminal）光线路终端 B: ONU（Optical Network Unit）光网络单元 C: ODN（Optical Distribution Network）光分配网络 D: AON（Active Optical Network） 有源光网络 E: SFU（Single Family Unit） 单家庭住户单元
PON(Passive Optical Network)指的是无源光网络。_
PON(Passive Optical Network)指的是无源光网络。_