Cat5e vs Cat6 for CCTV and Intercom Wiring
Cat5e and Cat6 can both be used in many IP security and networking installations, but Cat6 is often the better default for new work because it gives more headroom, cleaner documentation and better future flexibility.
Practical summary: This comparison is written for CCTV, intercom, alarm and access-control planning. Always confirm the actual device manual, local requirements and site conditions before finalising materials.
Comparison table
| Item | Option 1 | Option 2 |
|---|---|---|
| Typical use | Older structured cabling, basic IP cameras, short office runs | New CCTV, intercom, access control and general structured cabling |
| Bandwidth headroom | Adequate for many 1Gbps links | More headroom and better performance margin |
| PoE suitability | Often suitable if solid copper and correctly installed | Usually preferred for new PoE camera/intercom runs |
| Future proofing | Acceptable where already installed and tested | Better choice where new cable is being pulled |
| Cable handling | Usually easier to handle | Slightly thicker/stiffer depending on cable type |
| Best practical choice | Reuse where existing cable is good quality and tests properly | Specify for most new security/network cabling |
Which should you choose?
Choose Cat5e when
- The cable already exists and tests properly.
- The run is short and bandwidth requirements are modest.
- The device is low-bandwidth and not likely to be upgraded soon.
Choose Cat6 when
- You are pulling new cable.
- The run will support CCTV, intercoms, wireless APs or PoE devices.
- You want better future flexibility and cleaner specification.
Common mistakes
- Choosing a product or cable type before confirming the actual device specification.
- Ignoring power draw, voltage drop, PoE class, or fail-safe/fail-secure behaviour.
- Copying a generic wiring diagram without checking the exact terminal names.
- Failing to document the final as-built wiring and port allocation.
Relevant product examples
For Cat6 patching, PoE switching, cameras and related installation hardware, SecurityWholesalers is a relevant product reference.