NOYAFA NF-868 - Manual (Page 7)

Special use:
can test line sequence of the connecting cables In case of exchanger power-on, the main unit
Take network cable as an example: one end of the cable is connected with
“MAIN” interface of the main unit, and other end is connected with exchanger
interface. And direct connection test can be performed. If the exchanger interface
tested is reliably connected, the following interfaces shown (exchanger interface
is 8-core):
In case of open circuit with line 1 and 2 of the exchanger tested, the following
interface is shown (exchanger interface is 8-core):
1 2 3 4 5 6 7 8
Short mapping:
1 2 3 4 5 6 7 8
Short mapping:
- - - - identify- - - -
b.Cable length test:(Test length only with the main tester,
don’t connect cable into remote unit.)
Firstly insert one end of the testing cable into “M” port in the main tester. When
entering ”Pair&Length” testing function to check the length.
At this time, the following interface is shown:
Note: Due to different technical parameters with different branded cables,
users are recommended to use dynamic calibration function of the equipment
before measuring length (Refer to the related chapter for more details.).
09
Remote unit with tone when checking wiremap
When use remote unit to check wiremap, users can distingush the test result firstly via
tones. When the cable is normal, the remote unit will generate “ beep ” long and slowly.
When the cable is abnormal, the the remote unit will generate “ beep ” short and quickly.
1 Open 105.0m
4 Open 105.0m
2 Open 105.0m
3 Open 105.0m
10
Test result 1: Short circuit
If there is short circuit with the cable and terminal, the following interface is
shown (Short circuit with 2 and 3)
At this time, press any key to return to the main menu, and then press
“ENTER” key to other functions.
Please do not perform test again until short circuit problem solved.
Test result 2: In case of normal pairing and length test,
the following interface is shown:
Thus , the cable is almost 105m . Only one end of cable connect with main
tester, the other end needs no connection, so it show "Open" in the picture
.
At this time, press any key to return to the main menu, and then press
“ENTER” key for re-test.
1 2 3 4 5 6 7 8
Short mapping:
5 Open 105.0m
9 Open 105.0m
6 Open 105.0m
7 Open 105.0m
(1).Insert one end of the USB cable to be tested into “USB” port of the
main tester, the other end needs no connetion, select “USB(4)” Type, return to
the main menu, and select length test, and then press “ENTER” key to perform
length test with the equipment, the following interface will be shown:
Test result 3: USB cable length test
It indicates that length of USB cable is 10.1m. At this time, press any key to
return to the main menu, and then press “ENTER” key for other testing.
1 Open 10.1m
4 Open 10.1m
2 Open 10.1m
3 Open 10.1m
Your excellent helper in cable test! Your excellent helper in cable test!