CN201114065Y - Tail fiber possessing test port - Google Patents

Abstract

The utility model provides a pigtail with test ports, comprising a pigtail connector and a pigtail body. The utility model is characterized in that two bifarious or opposite optical dividers are connected to form the pigtail which is provided with more than two connectors. The pigtail has a plurality of test ports to realize the on-line monitor of the pigtail connector, the device irradiancy power and the optical fiber loss property and the convenient maintenance.

Description

A kind of tail optical fiber of tape test mouth

Technical field:

The utility model relates to the optical communication technique field, refers in particular to a kind of tail optical fiber of tape test mouth.

Background technology:

The tail optical fiber that uses in the optical communication now all is connected with an optical branching device and has a light transmission mouth, a light-receiving mouth.The light signal that sends from transmission equipment need be connected on the circuit through tail optical fiber, need to disconnect the tail optical fiber connector in the daily test and just can carry out the test of transmission equipment luminous power, test also needs to disconnect optical cable connector to lightguide cable link in addition, and this must be influential to business.

Summary of the invention;

The technical problem that the tail optical fiber of a kind of tape test mouth of the utility model will solve is to make by changing the tail optical fiber structure that on-line testing becomes possibility to line facility, the tail optical fiber of a kind of tape test mouth of the utility model is characterized in that: described tail optical fiber is opposing or be formed by connecting relatively by two optical branching devices, have two light and send mouth, the light-receiving mouth, one of them light sends mouth, the light signal of light-receiving oral instructions transfer device is to circuit, and can send mouth the equipment luminous power is detected at another light, according to optical branching device splitting ratio computing equipment luminous power, receive the light mouth at another and send detection light, have the detection light of suitable isolation that circuit and connector loss are tested by sending with the flashlight frequency.The utility model optical cable tail optical fiber, but proper extension sends receiving port than fine end to end two light of Duoing of common double, with convenient test, owing to no longer need to disconnect light path, has therefore improved transmission network fail safe in the test process.

Description of drawings:

Fig. 1 is the utility model tail optical fiber structure chart.

Fig. 2 is the utility model Application Example 1.

Embodiment:

Number in the figure: 1,2,3,4 is connector, and 5,9,10 is the branch of splitter, and 6 is connector, and 11 is optical cable.Referring to Fig. 1, described tail optical fiber is to be formed by connecting by two optical branching devices, and by receiving light mouth 1,3, light outlets 2,4 reaches tail optical fiber body 5 and forms, and is luminous by 1 end receiving unit, is test port in light outlets 2,4 terminated line tracksides, and 3 termination test instrument are luminous.At 3 termination OTDR, can test the line loss characteristic, at 3 termination light sources, can test optical connector 6 at 2 ends.

Referring to Fig. 2, as being W1 at 2 end test light power, 1 end and 2 end splitting ratios 5: 95, then equipment luminous power W2=W1+20-10log 5=W1+13.

Claims (1)

1, a kind of tail optical fiber of tape test mouth is made up of tail optical fiber body and connector, it is characterized in that: the tail optical fiber body is formed by connecting by two opposing or relative optical branching devices; Have two light and send mouth, two light-receiving mouths.

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