Page.75.
Single test:
Test cable status, length and attenuation.
Repeat test:
Continue to test cable status, length and attenuation.
Status:
After link up, screen display “online”, if not link up or open circuit, screen display ”open
circuit”, if cable pair is short circuit, screen display “short circuit”
Length:
The max test length is 180 meters, when cable is open circuit or short circuit, can test
the cable length, if screen display “online”, the testing result would be not accurate.
Cable quality test:
Green is good quality cable, Yellow is Poor quality cable, Red is water
poured cable, the attenuation value will be displayed when cable over 10 meters
Advanced Test:
Test cable pair status, length, attenuation, reflectivity, impedance, skew and
other parameter.
Attenuation reflectivity:
After link up, if reflectivity value is 0, it is the best quality
communication
Impedance:
After link up ,if the impedance value is 100
Ω
,it is the best quality communication,
the range is generally in 85-135
Ω
Skew:
After 1000M link up, when skew value is 0ns,it is the best quality communication, if over
50ns, will cause a Bit Error Rate in the transmission.
Connection diagram
Содержание IPC-4300 Plus
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