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3

2: sAFeTY RULes &  

WARNINGs

2.1

 Read all instructions in this manual before using 

this tester. Failure to do so may result in damage to the 

tester or injury to the user.

2.2

 Do not use this tester with it`s case open, or with 

parts removed. Doing so may damage the tester and /

or injure the user.

2.3

 When using this tester in schools and workshops, 

responsible teachers or skilled personnel must control 

the usage of this tester. Failure to observe this precau-

tion may result in damage to the tester or injury to the 

user.

2.4

 Follow the recommendations of any Trade Organiz-

ations or Regulatory Agencies whose scope encom-

passes the use of this tester. Failure to do so may 

result in damage to the tester or injury to the user.

2.5

 Do not open this tester for maintenance without 

first disconnecting it from all external circuitry. Failure 

to observe this precaution may result in damage to the 

tester or injury to the user.

2.6

 Repairs and maintenance must only be carried out 

by qualified service personnel or qualified electricians /

technicians who know the dangers of, and the safety 

rules applicable to this type of equipment. Failure to 

observe this precaution may result in damage to the 

tester or injury to the user.

2.7

 Do not touch the ends of the cables when making 

tests. An unexpected dangerous potential may be 

present. Failure to observe this precaution may result 

in damage to the tester or injury to the user.

2.8

 Do not apply voltage or current to any of the tes-

ter‘s connectors. Doing so may damage the tester and 

/ or injury the user.

WARNING

This tester is not intended for use on 

powered circuits. Attaching this tester to 

a powered circuit can result in damage to 

the tester or injury to the user.

CNT10L_Manual_en.indd   3

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Summary of Contents for CNT 10 L

Page 1: ...Network Cable Tester Manual CNT 10 L CNT10L_Manual_en indd 1 25 06 2019 14 19 12...

Page 2: ...es The 4 in 1 Cable Tester tests 4 common LAN and Computer cables It tests installed cables or patch cords with RJ 45 RJ 11 USB and BNC connectors It is intended to test cables with straight through c...

Page 3: ...first disconnecting it from all external circuitry Failure to observe this precaution may result in damage to the tester or injury to the user 2 6 Repairs and maintenance must only be carried out by q...

Page 4: ...sing 2 14 Do not modify this tester Changing the design may make the tester unsafe and may result in injury to the user 2 15 Do not use this tester if it has undergone long term storage under unfavora...

Page 5: ...ded STP or unshielded UTP LAN cables 3 12 Test shields in USB cables 4 1 Cables Tested UTP and STP LAN cables Terminated in RJ 45 male connectors ElA TIA 568 RJ 11 cables with male connectors 2 to 6 c...

Page 6: ...Contents 6 5 1 Test Button 5 2 Main Display 5 3 RJ 45 Jack 5 4 RJ 11 Jack 5 6 USB Jack 5 7 BNC Jack CNT10L_Manual_en indd 6 25 06 2019 14 19 13...

Page 7: ...The Remote is often attached to the Main unit when storing when transporting or when patch cables are being tested The Remote is removed from the Main unit when an installed in wall ceiling etc cable...

Page 8: ...with light and the Beeper will sound once 6 6 4 Connected LED Lo Hi Beep Numbered LEDs If the Connected LED lights and the Beeper emits a LoHi beep examine the numbered LEDs i e LEDs numbered 1 to 8 a...

Page 9: ...n crossed This seldom affects the performance of Standard analog telephone lines POTS Digital telephone lines and old touch tone phones may be polarity sensitive so a cros sed cable may prevent them f...

Page 10: ...p or put in ser vice and it tests as Open or Crossed the RJ connec tors have probably been installed incorrectly Shorts very seldom occur as the result of a badly crimped RJ connector so the user shou...

Page 11: ...e cable will test ok But when the cable is tried on the LAN it does not work This is because the Iack of the proper pairing causes exces sive cross talk in the cable Preventing the LAN from working Th...

Page 12: ...e line rings 7 6 4 The CNT 10 L says my RJ 11 phone cable is good but my phone doesn t work First make sure the telephone line is active The good cable may result in a reversed line The line is not ac...

Page 13: ...justments Calibration is not required To clean the outside of the tester use a cloth dampened with a mild detergent solution Do not use any abrasive cleansers or chemical solvents that may damage the...

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