多項選擇題What are three relevant design considerations when using the 15216 EDFA?()

A. dispersion
B. Optical SNR
C. span attenuation
D. four wave mixing
E. receiver sensitivity


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1.單項選擇題If the power is 0 dBm, what is the power in mW?()

A. 0 mW
B. 1 mW
C. 10 mW
D. 1.5 mW

2.單項選擇題What is an advantage of an externally modulated laser over a directly modulated laser? ()

A. lower cost
B. higher chirp
C. easier to manufacture
D. higher dispersion tolerance
E. higher optical signal-to-noise ratio

4.單項選擇題Which device creates an OEO conversion? ()

A. amplifier
B. attenuator
C. regenerator
D. light emitter
E. optical switch
F. optical receiver
G. fiber-optic cable

5.單項選擇題What is the difference between the transmitted power and the sensitivity of the receiver? ()

A. OSNR
B. dispersion
C. attenuation
D. power budget
E. amplifier spacing
F. four wave mixing

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Click the Exhibit button. The exhibit shows a 15454/15216 DWDM system and alarm indications. What are two possible sources of trouble shown in the system?()

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Which two can be transported in one AU-4? ()

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Which is a legitimate bandwidth matched pair?()

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In order to avoid misconnections due to a failed node in an MS-SPRing, Alarm Indication Signals (AISs) are sent on every channel normally terminating in that node. What is the name of this process?()

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On an ONS 15454 node you can tunnel a(n) ().

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Given the formula: (Fiber Attenuation * Km) + (Splice Attenuation * # of Splices) + (Connector Attenuation * # of Connectors) + (Optical Fiber or OADM) + Buffer(Fiber aging)) With regard to SONET/SDH optical calculations, what will the given formula provide?()

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For lasers with tightly controlled wavelengths, approximately how far apart are the centers of adjacent wavelengths when 100 GHz spacing is used in a DWDM system? ()

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