Testing of integrated wiring system

The content and standard of the twisted pair test

Test content line array

(1) test the wiring diagram of the twisted pair end.

(2) cable length test.

(3) attenuation test.

(4) near end crosstalk test.

Test and standard of twisted pair wiring diagram

1. The horizontal subsystem test.

The 4 pair of unshielded or shielded twisted pair (UTP/FTP/STP) connections of the twisted pair horizontal sub-system are carried out by standard and connected at one end of the rack by the following way. First pairs: [blue and white] blue, second pairs: [orange white] Orange, third pairs: [green and white] green, fourth pairs: [Brown] brown.

2. Vertical subsystem test.

In the vertical subsystem, the correctness of the connection of the large logarithmic cable is guaranteed by the color code.

3, cable length test and standard

1. Basic link BasicLink

The basic link is the length of the horizontal wiring of the information module, which includes the distribution rack from the distribution line to the user room. The test length should not exceed 94m (including two 2m test jumpers).

2. Channel ChannelLink

The channel is the length of the horizontal wiring of the information module, which includes the wiring frame between the distribution lines to the user's room, coupled with the information module of the user's room to the length of the computer jump line. The test length should not exceed 99m (including 3 3M jumpers).

4, attenuation test and standard

Attenuation is the loss caused by signal transmission in transmission medium.

5, near end crosstalk (NEXT) test and standard

NEXT is the signal coupling from one pair of lines to another in one link, that is to say, when one line sends a signal to another line in the next line. The near end crosstalk itself is very sensitive to the non twisted wires located at the final contact point (jumper frame and information socket), and at the same time, it is also sensitive to poor installation. NEXT is the most important parameter to determine link transmission capability, and NEXT will also be generated in the process of construction.

Test and standard of optical fiber cable system

1, optical cable link test method

2. The final requirement of cable core wire

A brief introduction to FLUKE tester and UL certification

1, single end network cable tester Fluke620

2, DSP-2000 cable analyzer product characteristics

3, UL certification

The reasons for the disqualification of the UTP five line test

The reasons for the disqualification of the UTP five line test

Project document report test record report

Electrical performance test records for 5 types and optical fiber distribution system engineering

Electrical performance test records for 5 types and optical fiber distribution system engineering

Project document report - completion technical document

Minimum performance requirements for measuring instrument precision

Minimum performance requirements for measuring instrument precision