Security Camera Cabling Guide Australia
Choosing the right cable for your security camera installation is critical for reliable performance and compliance with Australian standards. This guide covers everything you need to know about security camera cabling, from cable types and PoE power requirements to avoiding common installation mistakes.
Quick Navigation
Analogue vs IP Cameras: Different Cables Entirely
The first decision in any security camera installation is whether you're using analogue or IP cameras, because this determines your entire cabling approach. These two camera types require completely different cable types and cannot be interchanged.
Analogue Cameras
Cable Type: RG59 or RG6 coaxial cable + separate power cable (typically 4-core or 6-core security cable)
Connector: BNC for video, DC barrel plug for power
Max Distance: Up to 300 metres for video signal
Best For: Existing analogue systems, budget installations, simple setups
IP Cameras (Recommended)
Cable Type: Cat5e, Cat6, or Cat6a network cable (single cable for data AND power)
Connector: RJ45 (standard network plug)
Max Distance: 100 metres (theoretical), but see PoE limitations below
Best For: Modern installations, higher resolution cameras, PoE-powered systems
The PoE Distance Problem: Why 100 Metres is a Lie
Power over Ethernet (PoE) is one of the biggest advantages of IP cameras. A single network cable delivers both data and power, eliminating the need for separate power runs. But there's a critical limitation that catches installers out: voltage drop over distance.
⚠️ CRITICAL: The 100-Metre Rule Doesn't Apply to High-Power Cameras
The Ethernet standard allows 100-metre cable runs for data transmission. But when you're delivering power over the same cable (PoE), voltage drop becomes the limiting factor, especially for high-wattage cameras.
Real-world example: A 60W PoE++ PTZ camera at 90 metres on standard Cat6 cable will receive insufficient voltage when the motors activate. The camera reboots continuously. At 50-60 metres, it works perfectly.
Why Voltage Drop Happens
Every metre of cable has electrical resistance. When you push power through that cable, some voltage is lost as heat. The longer the cable and the higher the power draw, the greater the voltage drop.
Typical voltage drop on Cat6 cable carrying 60W PoE++:
- 30 metres: ~4V drop (camera receives 44V, works fine)
- 60 metres: ~8V drop (camera receives 40V, works fine)
- 90 metres: ~12V drop (camera receives 36V, insufficient for high-power functions)
- 100 metres: ~13V drop (camera fails to boot or reboots under load)
Solutions for Long Cable Runs
If you need to run cameras beyond 60 metres with PoE, you have three options:
- Use Cat6a cable instead of Cat6 - Cat6a has thicker conductors (23 AWG vs 24 AWG) and lower resistance, allowing slightly longer runs
- Install a PoE extender at 90 metres - This repeats the PoE signal and adds another 100 metres of distance
- Run a separate power cable - Use network cable for data only and run 240V AC or 12V DC power separately to the camera location
Pure Copper vs CCA Cable: Why Cheap Cable Will Cost You
Copper Clad Aluminium (CCA) cable is flooding the Australian market. It's cheaper than pure copper cable, but it's also illegal for customer cabling installations and creates serious safety and performance problems.
CCA Cable is Banned in Australia
CCA cable does not comply with AS/CA S008 standards. Installing it can result in fines up to $13,200 and loss of your cabling licence under the Telecommunications Act 1997.
Even if you're not a licensed cabler, using CCA cable for PoE security cameras creates a fire risk due to excessive resistance and overheating.
Why CCA Fails for PoE Security Cameras
CCA cable has an aluminium core with a thin copper coating. Aluminium has 60% higher electrical resistance than pure copper. This means:
- Voltage drop is nearly double - A 50-metre CCA run delivers the same voltage as a 90-metre pure copper run
- Cable overheats under load - High-power PoE cameras can cause CCA cable to get dangerously hot, creating a fire risk
- Performance degrades over time - Aluminium oxidises rapidly, increasing resistance further and causing intermittent connection failures
How to identify CCA cable: If the cable price seems too good to be true, it probably is. Genuine pure copper Cat6 cable costs more, but it's the only compliant and safe option. Always buy from reputable Australian suppliers who can verify compliance.
Read the full story: Why CCA cable is illegal in Australia and how to avoid it
Cable Selection Chart: Which Cable for Which Camera?
Use this flowchart to choose the right cable for your security camera installation:
+ 4-core or 6-core power cable
Pure copper
Lower resistance
OR separate power
Quick Reference: Camera Power and Cable Requirements
| Camera Type | Typical Power Draw | Recommended Cable | Max Distance (PoE) |
|---|---|---|---|
| Fixed dome (1080p) | 5-7W | Cat6 | 100m |
| Fixed bullet (4K) | 12-15W | Cat6 | 90m |
| PTZ (motorised, 4K) | 30-60W | Cat6a | 60m |
| IR bullet (night vision, 4K) | 20-25W | Cat6 | 70m |
Installation Best Practices
Outdoor Installations
Outdoor security camera cabling requires protection from weather, UV exposure, and physical damage. Follow these best practices:
- Use UV-rated outdoor cable - Standard indoor Cat6 cable degrades under UV exposure. Specify UV-rated PE (polyethylene) jacket cable for outdoor runs.
- Run cable through conduit - Use 20mm conduit for single cable runs, 25mm for multiple cables. This protects against physical damage, moisture, and rodents.
- Create drip loops at entry points - Cable should loop down before entering the camera housing or wall penetration. This prevents water running along the cable into the camera.
- Seal all penetrations - Use silicone sealant or weatherproof glands where cables enter buildings or camera housings.
- Avoid cable strain - Use cable clips every 30cm to support the cable weight and prevent tension at connectors.
PRO TIP: Test Before You Terminate
Before running 80 metres of cable through conduit and up a wall, test the camera with a short 1-metre patch cable first. If it works on the short cable but fails on the long run, you've immediately identified voltage drop as the problem. Testing after installation wastes hours of troubleshooting time.
Indoor Installations
Indoor installations are simpler but still require attention to detail:
- Label every cable at both ends - Use permanent markers or label makers. Include camera number and location (e.g., "CAM-03 WAREHOUSE EAST").
- Leave service loops - Coil 1-2 metres of extra cable at the camera end and at the NVR end. This allows cameras to be repositioned or equipment to be serviced without re-running cable.
- Avoid running near power cables - Keep network cables at least 30cm away from mains power cables to avoid electromagnetic interference.
- Use cable management - Secure cables with Velcro straps (not zip ties, which can damage the cable) and use cable trays or J-hooks in ceiling spaces.
Common Mistakes to Avoid
1. Buying CCA Cable to Save Money
CCA cable is 20-30% cheaper than pure copper, but it's illegal in Australia and will cause performance problems. Always specify pure copper cable. Access Communications only stocks 100% compliant pure copper cable.
Read more: Why CCA cable is banned in Australia
2. Assuming 100 Metres is Always Safe for PoE
The 100-metre Ethernet distance limit applies to data only. When you add PoE power delivery, voltage drop becomes the limiting factor. For high-power cameras (PTZ, high-wattage IR), keep cable runs under 60 metres on Cat6 or use Cat6a for runs up to 80 metres.
3. Not Testing Cable Runs Before Termination
Test your camera with a short patch cable before committing to a long cable run. If the camera works on 1 metre but fails on 70 metres, you know the issue is cable length or voltage drop, not camera configuration.
4. Using Indoor Cable for Outdoor Runs
Standard PVC-jacketed Cat6 cable breaks down under UV exposure within 6-12 months. Always use UV-rated PE jacket cable for outdoor installations, even if the cable is inside conduit (conduit fittings can allow UV penetration).
5. Over-Tightening Cable Ties or Zip Ties
Network cable is delicate. Over-tightening cable ties can crush the internal conductors and cause intermittent failures. Use Velcro cable straps or finger-tight zip ties only.
6. Forgetting to Leave Service Loops
Cameras need to be adjusted or replaced eventually. If you terminate cables with zero slack, you'll need to re-run the entire cable to make changes. Always leave 1-2 metres of coiled cable at each end.
Get Professional-Grade Cable for Your Security Camera Installation
Access Communications supplies 100% pure copper Cat5e, Cat6, and Cat6a network cable for security camera installations across Australia. All our cable is fully compliant with AS/CA S008 standards and backed by our limited lifetime warranty.
Need help selecting cable? Our technical team can help you calculate voltage drop, choose the right cable type, and ensure your installation meets Australian standards.