Page 129 - Electronic Mechanic - TP - Volume - 2

ELECTRONICS MECHANIC - CITS

Voltage Test:

To perform the voltage test, use a multimeter to measure the voltage provided to the CCTV cameras. Follow the
steps below:
Connect one end of the CCTV cable to the recording device and the other end to the CCTV camera.

Use the multimeter to measure the voltage provided to the CCTV camera.
If the voltage is within the recommended range, the voltage test is successful.
Test Coaxial Cable
Coaxial cables, one of the most commonly used materials in networking, are responsible for accurate data
transfer. We can find them in almost every network, including cable, internet, and satellite. Once installed, the
coaxial cables will start to play videos and music for us in great quality.
Method 1: How to Test A Coaxial Cable With Easy Steps

In many professionals’ eyes, using a multimeter is the first method that pops up when talking about coaxial cable
tests.
But it’s a little bit complex to tell and understand the differences in resistance for beginners and homeowners. We
need a more straightforward method to know a broken or good coaxial cable.
Test Coaxial Cables with Cable Tester
a leading manufacturer of network testers released a multifunction cable tester for all network cables like RJ45,
RJ11, and coaxial cables.

Steps to test coaxial cables(s)
Step 1: Connect the coaxial cable

Launch NF-858C and press the OK button to choose the first mode: CONT (cable continuity test).
Take out the coaxial cable and connect it to the Emitter and a remote of NF-858C.
Set the Type to BNC by pressing OK again.
Press the Down button on the Emitter device to navigate the Start option. Press OK. The coaxial tester will start
to check the cable continuity.
In seconds, the wire map of the coaxial cable is shown.

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CITS : E & H - Electronics Mechanic - Exercise 151