單項(xiàng)選擇題關(guān)于區(qū)域號(hào)說法正確的是:()

A.同區(qū)域號(hào)的網(wǎng)元用網(wǎng)線連接可以通訊
B.不同區(qū)域號(hào)的網(wǎng)元用網(wǎng)線連接可以通訊
C.同區(qū)域號(hào)的網(wǎng)元用網(wǎng)線連接不可以通訊
D.不同區(qū)域號(hào)的網(wǎng)元用網(wǎng)線連接不可以通訊


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1.多項(xiàng)選擇題The WDM components making up a WDM system should meet the following requirements .()

A.插入損耗低 Low insertion loss
B.具有良好的帶通特性 Excellent bandpass property
C.溫度穩(wěn)定性好 Performance stability in spite of temperature change
D.復(fù)用通路數(shù)多A number of multiplexing channels
E.具有較高的分辨率 High resolution
F.幾何尺寸小 Small size

2.多項(xiàng)選擇題ZXMP M800 can be applied to a()channel system.

A.8
B.16
C.40
D.80

3.多項(xiàng)選擇題A ZXWM M900 system provides several wavelength stabilizing methods, including ().

A.內(nèi)置波長反饋方式 Built-in wavelength feedback
B.外置波長反饋方式 External wavelength feedback
C.自動(dòng)功率控制反饋方式 Automatic power control feedback
D.溫度控制反饋方式 Temperature control feedback

5.多項(xiàng)選擇題Select boards allowing optical protection from the following options. ()

A.OP
B.OPCS
C.OPMS
D.SWE
E.OPM
F.OMCP

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