Technical informational / commercial investigation
Fibre Connection Between Security System Buildings
Wiring and cabling guide
Confirm the exact equipment models, cable types, power capacity, distances and current manufacturer instructions before installation. Terminal names and ratings vary between products.
Main diagram
Equipment list
- Remote IP Cameras - Remote building cameras
- Remote PoE Switch - Camera power and data
- Remote Fibre Interface - SFP or media converter
- Main-Site NVR - Recording
- Main Network Switch - Site LAN
- Main Fibre Interface - SFP or media converter
Cable schedule
Use the diagram reference to follow the same connection from the main diagram into the detailed explanation below.
| Diagram ref | From | To | Cable type | Core count | Power or data | Maximum distance | Purpose / important notes |
|---|---|---|---|---|---|---|---|
| C1 | Remote IP Cameras | Remote PoE Switch | Cat6 | 4 twisted pairs / 8 conductors | Data/control | Not stated | Cat6 + PoE |
| C2 | Remote PoE Switch | Remote Fibre Interface | Cat6 or direct SFP | 4 twisted pairs / 8 conductors | Data/control | Not stated | Fibre uplink handoff |
| C3 | Remote Fibre Interface | Main Fibre Interface | Project-specified fibre | Usually 2 active optical cores plus project spares | Data/control | Not stated | Fibre backbone |
| C4 | Main Fibre Interface | Main Network Switch | Cat6 or direct SFP | 4 twisted pairs / 8 conductors | Data/control | Not stated | Main LAN handoff |
| C5 | Main Network Switch | Main-Site NVR | Cat6 | 4 twisted pairs / 8 conductors | Data/control | Not stated | Recorder LAN |
No maximum distance is invented. Where the exact figure depends on Ethernet design, voltage drop, current draw or the selected device, the schedule tells the installer to confirm it.
What the wiring actually is
Match each C reference to the same label on the main diagram and cable schedule. The line name alone is not a complete cable specification, so this table explains the physical cable, conductor or pair use, what it carries and how it normally terminates.
| Diagram ref | Cable shown | Physical path | Cable construction | Conductors or pairs | What it carries | Normal termination | Confirm before installation |
|---|---|---|---|---|---|---|---|
| C1 | Cat6 | Remote IP Cameras to Remote PoE Switch | Solid-copper Cat5e or Cat6 balanced Ethernet cable; Cat6 is the normal new-install choice. Do not use copper-clad aluminium. | Four twisted pairs / eight conductors, terminated consistently to T568A or T568B at both ends. | Ethernet data plus IEEE 802.3 PoE power when both the source and device support the required PoE class. | RJ45 plug, keystone or patch panel appropriate to the cable type; preserve pair twists. | 90 m permanent link / 100 m channel, PoE class, total switch budget, surge exposure and voltage drop for high-power devices. |
| C2 | Cat6 or direct SFP | Remote PoE Switch to Remote Fibre Interface | Solid-copper Cat5e or Cat6 balanced Ethernet cable; Cat6 is the normal new-install choice. Fibre may replace copper for distance or electrical isolation. | Four twisted pairs / eight conductors, terminated consistently to T568A or T568B. | Ethernet data only unless the named port is specifically documented as PoE. | RJ45 network termination or the stated SFP/fibre interface. | 90 m permanent link / 100 m channel for copper Ethernet, port role, VLAN and whether the port supplies PoE. |
| C3 | Project-specified fibre | Remote Fibre Interface to Main Fibre Interface | Project-specified single-mode OS2 or multimode OM3/OM4 optical fibre, normally with spare cores and suitable outdoor/indoor construction. | Usually one transmit and one receive core for duplex optics, or one core for matched BiDi optics. | Optical Ethernet; fibre does not carry PoE, so the remote switch/radio requires local power. | Matched SFP/SFP+ modules, wavelength and connector type at both ends, or approved media converters. | Fibre type, optical budget, wavelength, connector loss, core count, pathway rating, surge isolation and remote power/UPS. |
| C4 | Cat6 or direct SFP | Main Fibre Interface to Main Network Switch | Solid-copper Cat5e or Cat6 balanced Ethernet cable; Cat6 is the normal new-install choice. Fibre may replace copper for distance or electrical isolation. | Four twisted pairs / eight conductors, terminated consistently to T568A or T568B. | Ethernet data only unless the named port is specifically documented as PoE. | RJ45 network termination or the stated SFP/fibre interface. | 90 m permanent link / 100 m channel for copper Ethernet, port role, VLAN and whether the port supplies PoE. |
| C5 | Cat6 | Main Network Switch to Main-Site NVR | Solid-copper Cat5e or Cat6 balanced Ethernet cable; Cat6 is the normal new-install choice. Fibre may replace copper for distance or electrical isolation. | Four twisted pairs / eight conductors, terminated consistently to T568A or T568B. | Ethernet data only unless the named port is specifically documented as PoE. | RJ45 network termination or the stated SFP/fibre interface. | 90 m permanent link / 100 m channel for copper Ethernet, port role, VLAN and whether the port supplies PoE. |
Are any resistors required?
| Circuit | Resistor required? | Where it belongs | How to select it |
|---|---|---|---|
| Cat5e/Cat6 Ethernet or PoE | No external EOL resistor | Not applicable | The 100-ohm Ethernet impedance is a cable characteristic, not a resistor to install at the camera or switch. |
| 75-ohm CCTV coax | No external 75-ohm resistor in a normal camera-to-DVR run | Not applicable | Use true 75-ohm cable and BNC terminations. Do not add a loose resistor unless specialised test/distribution equipment explicitly requires it. |
| Fibre, HDMI/VGA or wireless path | No alarm EOL resistor | Not applicable | Use the correct optical modules, display cable or radio design instead. |
Never choose a resistor by cable colour or by the phrase "security cable". First identify the exact input, panel model and programmed supervision mode. An EOL resistor belongs at the end of the supervised circuit; placing it across the panel terminals defeats cable supervision.
Power requirements
Confirm the selected equipment's supply method, PoE class or DC input, total load and backup requirements before ordering. Keep lock power separate from data-path assumptions, calculate voltage drop for low-voltage loads, observe battery polarity and isolate any 230-240 VAC work to an appropriately licensed electrician.
How the wiring path works
Read the physical cable path first, then power, relay or I/O paths, network addressing and finally app or cloud registration. A device that appears offline may have a physical link, power, addressing or configuration fault; Wi-Fi and cloud registration should not be used to hide an incorrect LAN design.
Practical installation sequence
- Confirm every exact device model and current manual.
- Confirm cable types, routes, separation and distances.
- Check PoE or DC power capacity and site voltage drop.
- Mount and cable devices with power isolated.
- Test continuity, polarity and earth/surge arrangements where applicable.
- Power one subsystem at a time.
- Activate and address network devices.
- Configure relay, call or recording behaviour only after the physical path works.
- Test local operation, remote operation and failure modes separately.
- Record final models, IP addresses, cable IDs, settings and diagram revision.
Common mistakes
- Assuming a port provides PoE without checking the port and total switch budget.
- Confusing a recorder's isolated camera ports with its main LAN uplink.
- Powering a lock from an unsuitable relay or supply.
- Guessing normally-open, normally-closed, polarity or resistor details.
- Ignoring voltage drop, surge exposure or power-failure behaviour.
- Treating app setup as proof that the physical cabling is correct.
Troubleshooting
| Symptom | Likely cause | Test | Corrective action |
|---|---|---|---|
| Device has no power | Incorrect supply method or exhausted PoE budget | Check port status and measure only with the correct procedure | Match the power source to the exact device manual |
| Device powers but is offline | Wrong LAN path, addressing or activation state | Confirm link lights, subnet, gateway and device state | Correct physical LAN and addressing before cloud setup |
| System works locally but not remotely | Internet, DNS, account or cloud registration issue | Prove local operation first, then test WAN services | Correct router or account configuration; do not recable a working local link |
| Relay or lock action fails | Wrong contact logic, power path or load assumption | Test relay and lock supply as separate subsystems | Use the exact manual and suitable lock PSU; confirm egress requirements |
Compatible products and categories
Exact product links above were confirmed on the current Security Wholesalers site on 2026-07-19. Category links are used when an exact active compatible product was not confirmed.
Related diagrams
Frequently asked questions
Can I buy cable using this guide?
Use the cable schedule and buying list to shortlist the cable, then confirm the exact equipment model, route, distance, environment and manufacturer requirements before ordering.
Can cable distance or power capacity be assumed from this drawing?
No. Confirm the selected devices, PoE budget, voltage drop, cable construction and current manufacturer instructions.
Where do terminal names and resistor values come from?
They must come from the exact current manual for the selected model. Do not transfer terminal names, polarity or resistor values from a similar product.
Can this replace the manufacturer manual?
No. It is a planning and support reference only and does not replace manufacturer instructions, licensed work, fire engineering, egress assessment or site commissioning.
Technical references
| Manufacturer | Document | Revision | Relevant pages | Reference | Accessed |
|---|---|---|---|---|---|
| Selected equipment manufacturers | Selected equipment manuals and project network/cabling design | To be recorded during technical review | Terminal pages not used in this layout | Exact manual to be recorded | 2026-07-19 |
Diagram revision: 1.0. Confirm the exact current manual for the selected equipment before installation.
Australian installation and safety notice
General guide only. Confirm current manufacturer instructions and site requirements. Work involving 230-240 VAC must be completed by an appropriately licensed electrician. Fire-release interfaces, emergency exits and door locking require project-specific compliance assessment. Keep mains and ELV cabling appropriately separated, isolate power before work, observe battery polarity and calculate voltage drop for the real load and cable run.