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Applications

fiber optic transceiver and FTTHFiber Optic Transceiver Modules can be applied to these occasions or fields.

  • Ethernet

  • IPTV

  • FTTX

  • Security

  • Video Monitor

  • SDH/SONET

  • Data Communication

  • Storage Area Networks

 

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Related Products

10G SFP+ Transceiver 10G SFP+ Transceiver
 
10G XENPAK 10G XENPAK
 
40G QSFP+ Transceiver 40G QSFP+ Transceiver
 

Performance Feature

Stable

Low cost

Small size

Economic

Dust-proof

High speed

Hot-pluggable

Good EMI, EMC

Wide appliaction field

DDM function available

Long transmission distance

Good Anti-static performance

Module Knowledge

Recommended

SFP+ LC Patch Cord

 

SFP+ DWDM Mux Demux

Calculate a Power Budget

 

You can make a rough estimate of a link power budget. For this, you must allow 0.75 dB for each fiber-to-fiber connection, and assume that fiber loss is proportional with length in the fiber. For a 100-meter run with three patch panels and 62.5/125 fiber that have a loss of 3.5 dB/km, the total loss is 2.6 dB, as shown here:

 

Fiber: 3.5 dB/km = 0.35 dB for 100 meters

Patch Panel 1 = 0.75 dB

Patch Panel 2 = 0.75 dB

Patch Panel 3 = 0.75 dB

Total = 2.6 dB

 

The measured loss is normally less. For example, the average insertion loss for an AMP SC connector is 0.3 dB. In this case, the link loss is only 1.4 dB. Regardless of whether you run Ethernet at 10 Mbps or ATM at 155 Mbps, the loss is the same.

Optical time-domain reflectometry (OTDR) is a popular certification method for fiber systems. The OTDR injects light into the fiber, and then graphically displays the results of detected back-reflected light. The OTDR measures elapsed transit time of reflected light to calculate the distance to different events. The visual display allows determination of loss per unit length, evaluation of splices and connectors, and fault location. OTDR zooms in to certain locations for a close-up picture of portions of the link.

 

While you can use power meters and signal injectors for many link certifications and evaluations, OTDRs provide a powerful diagnostic tool to get a comprehensive picture of the link. But OTDR requires more training and some skill to interpret the display.

 

Related Knowledge:

 

 

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