Can FNIRSI LPM-10A Find Where a Network Cable Is Broken Malaysia?
Can FNIRSI LPM-10A Find Where a Network Cable Is Broken Malaysia?
A network cable suddenly stops working.
Both RJ45 connectors look normal, but the device cannot connect.
A common question is:
Can the FNIRSI LPM-10A tell me where the network cable is broken?
The FNIRSI LPM-10A Network Cable Tester can help technicians investigate cable faults using functions such as wire testing, cable length measurement and cable tracing.
However, it is important to understand what the tester can—and cannot—tell you.
It should be used as a troubleshooting tool to narrow down the cable problem, rather than assuming every fault can be located to an exact physical point immediately.
What Does a “Broken Network Cable” Mean?
A network cable does not have to be completely cut in half to cause a problem.
Possible faults include:
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Broken conductor
-
Open connection
-
Poor RJ45 termination
-
Damaged connector
-
Crushed cable
-
Cable damaged during renovation
-
Loose wall outlet
-
Problem at a patch panel
-
Intermediate connection failure
Sometimes the fault is visible.
Often, it is hidden above the ceiling, inside a wall or inside a cable tray.
First Check the RJ45 Connectors
Before investigating the hidden cable, check the easiest points first.
Inspect both ends.
Look for:
Loose RJ45 connectors
Incorrectly terminated wires
Broken connector clips
Corrosion
Water ingress
Damaged network outlets
Loose patch-panel termination
A significant amount of troubleshooting time can be wasted looking for a hidden cable break when the actual problem is at the connector.
Use Wire Testing to Identify an Abnormal Connection
The FNIRSI LPM-10A can help check the cable wiring.
If one or more conductors are not connected correctly, the tester can provide useful information that the cable requires further investigation.
For example, a cable may have worked previously but now shows an abnormal connection.
The next question becomes:
Is the problem at the connector, or somewhere along the installed cable?
That is where additional testing becomes useful.
How Cable Length Measurement Can Help
The cable length measurement function provides another troubleshooting clue.
Suppose you know that an installed network cable should be approximately 60 metres long based on the building layout.
But your test result suggests something substantially different.
That gives you a reason to investigate the cable more closely.
It may indicate that the cable path, termination or cable condition is not what you expected.
However, do not interpret a single length reading as absolute proof of the exact fault position.
Can It Tell Me “The Cable Is Broken at 32.4 Metres”?
This is where expectations need to be realistic.
A multifunction network cable tester can help technicians identify abnormal cable conditions and narrow down the investigation, but you should not assume that every type of fault will produce a perfectly precise physical location.
Several factors can affect troubleshooting, including:
Cable type
Cable condition
Termination
Installation layout
Intermediate connections
Measurement method
Use the measurement as diagnostic information together with other tests.
Example: Cable Runs Above an Office Ceiling
Imagine a network point is approximately 40 metres from the server room.
The cable runs:
From the server room
↓
Into the ceiling
↓
Across several office sections
↓
Through a cable tray
↓
Down to the wall outlet
The network point suddenly stops working.
There is no visible damage at either end.
Instead of immediately opening the entire ceiling, start by testing the cable.
If the results indicate an abnormal condition, you can combine that information with the known cable route.
This may help narrow down which section deserves inspection first.
Common Cause: Renovation Work
Network cable faults often appear after:
Office renovation
Ceiling work
Electrical installation
Partition installation
Air-conditioning work
Cable-tray modification
A cable may accidentally be:
Cut
Crushed
Pulled
Bent sharply
Disconnected
Damaged by drilling or construction work
If a network point was working before renovation and stopped working immediately afterwards, inspect the areas affected by the recent work.
The timing of the fault is an important troubleshooting clue.
Cable Fault After Moving Office Furniture
Not every fault is hidden above the ceiling.
Sometimes the problem is much simpler.
A desk or cabinet may crush a patch cable.
A wall outlet may become loose.
A patch cord may be pulled sharply.
An RJ45 locking tab may break.
Before investigating permanent cabling, test with a known-good patch cable where appropriate.
Simple comparison tests can save a lot of time.
Cable Tracing Can Help Identify the Correct Cable
Before diagnosing a cable fault, make sure you have identified the correct cable.
This becomes important in a network cabinet containing dozens of similar Ethernet cables.
The FNIRSI LPM-10A cable tracing function can help technicians identify the corresponding cable.
Once identified, you can continue with cable testing and other troubleshooting.
This avoids wasting time testing the wrong cable because of an incorrect or outdated label.
What If the Cable Is Inside a Wall?
If the suspected fault is inside a wall, avoid immediately opening the wall.
First collect as much information as possible.
Check:
Both cable ends
Wire condition
Approximate cable length
Known cable route
Nearby junctions
Patch-panel connections
Recent renovation work
The objective is to reduce the possible fault area before performing invasive inspection.
What If the Cable Passes the Test but the Network Still Doesn't Work?
Then the problem may not be a simple broken cable.
Continue troubleshooting other parts of the system.
Possible causes include:
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Network switch port
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Router
-
Device network adapter
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IP configuration
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DHCP
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VLAN configuration
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PoE problem
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Network equipment
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Software or security configuration
A cable tester is an important tool, but it does not diagnose every network problem.
For PoE Devices, Check Power and Data
This is particularly important for:
IP cameras
Wireless access points
VoIP phones
Access-control equipment
A PoE device depends on the Ethernet installation for both network communication and power delivery.
The LPM-10A includes PoE detection, allowing technicians to include PoE checking in the troubleshooting process.
Remember:
Device has power ≠ network communication is definitely good.
And:
Network cable connected ≠ PoE is definitely reaching the device correctly.
Investigate both sides of the problem.
Example: IP Camera Cable Suspected Broken
Suppose an outdoor IP camera suddenly goes offline.
A practical troubleshooting sequence is:
1. Inspect the camera RJ45 connection
↓
2. Check for water or corrosion
↓
3. Test the Ethernet cable
↓
4. Check PoE
↓
5. Trace the cable to the cabinet
↓
6. Identify the switch port
↓
7. Check the cable length and installation route
↓
8. Compare using a known-good cable where practical
This provides much stronger evidence before deciding to replace the cable or camera.
Should You Replace the Entire Cable?
Not immediately.
First determine whether the problem is actually the permanent cable.
If the fault is only a damaged RJ45 connector, replacing a long installed cable would be unnecessary.
If the cable itself is confirmed to be damaged, the appropriate repair will depend on:
Cable location
Installation requirements
Accessibility
Network requirements
Site standards
For professional structured cabling installations, follow the applicable installation and testing requirements rather than making an unsuitable temporary repair simply because it is faster.
FNIRSI LPM-10A for Cable Fault Troubleshooting
The LPM-10A becomes useful because cable troubleshooting rarely involves only one question.
A technician may need to determine:
Which cable is it?
Is the wiring normal?
How long is the cable?
Is PoE present?
Which switch port is connected?
Is the fault likely to be physical cabling or something further upstream?
Having several of these functions in one handheld instrument can make field troubleshooting more efficient.
FNIRSI LPM-10A Network Cable Tester Malaysia
So, can the FNIRSI LPM-10A find a broken network cable?
It can help technicians detect abnormal cable conditions, investigate cable length, trace the cable and narrow down the likely cause of a network cabling fault.
But the result should always be interpreted together with the actual installation and other troubleshooting checks.
For FNIRSI LPM-10A availability, technical enquiries or help selecting a suitable network cable tester, contact MTM Precision Sdn Bhd.
MTM Precision Sdn Bhd
Showroom & Service Centre:
No. 29-1 & 29-2, Jalan Bandar 18,
Pusat Bandar Puchong,
47160 Puchong, Selangor, Malaysia.
Tel: 03-8080 7172
WhatsApp: +6016-660 7346
Email: mtmpre@yahoo.com
Website: www.mtmpre.com.my
If you have a network cable problem, WhatsApp us a photo of the RJ45 connection, network outlet, patch panel or network cabinet and explain the fault you are experiencing.
Supply and enquiries throughout Malaysia, including Selangor, Kuala Lumpur, Johor, Penang, Melaka, Negeri Sembilan, Perak, Pahang, Kelantan, Terengganu, Kedah, Perlis, Sabah and Sarawak.
06 Oct 2026
