Fiber cable connection testing

[samuel0901]

Hi,

this is a fiber cable testing report. May I know what's the value ( dB )is passed?

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Result Wavelength

1.66 dB 850 nm

Fluke Networks LinkWare

Cable ID: 24-17-850 Test Summary:N/A

Project: Dairy Farm Headroom: N/A

Date / Time: 09/03/2006 01:51:00pm Test Limit: N/A

OPERATOR: Everwide Cable Type: Multimode 62.5 /

125um

Software Version: FM150 S/N:

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Regards,

Samuel

[pciaccio]

From this test results they ran a test on a multimode fiber (fiber diameter is 62.5um/125um. They ran it at 850nm and the receiver received a 1.66dB level. This receive value is actually high (Some may call it hot). The transmitter will usually send a level within the range of 0dB to -20dB. It would depend upon how your transmitter is set for. Remember from your math days that every 3dB you go down you half the power of the signal. Same for if you go up 3dB you double your power of the signal. If you have a hot level (above 0dB) and your distance between transmitter and receiver are too close you can burn out the receiver. That case you need to attenuate the transmit signal with an attenuater (Make sure you use a multimode attenuater). Good Luck.. Please rate....