Hong Kong CCTV buying and setup guide. Sources checked 28 October 2026.
Count powered camera ports before choosing a switch
Choose a PoE switch by the number of cameras that need power, each camera requirement and the combined maximum load. The headline port count can include an uplink that carries data without powering a camera. Reolink RLA-PS1E is described as a five-port switch, but its documented layout is four PoE+ ports and one uplink. RLA-PS1 has eight PoE+ ports and two uplinks. A four-camera shop therefore cannot assume that a five-port product leaves a fifth powered position for later expansion. Draw the intended connections first and reserve capacity only where the specification actually provides it.
A network socket does not prove PoE compatibility
An RJ45 Ethernet socket establishes a connector type, not the supported power standard. Check that the camera accepts active PoE and identify whether IEEE 802.3af or 802.3at is required. Reolink documents different requirements for specific higher-power models and warns against passive PoE injectors for its PoE cameras. A Wi-Fi camera with an Ethernet connection may still need its own power adapter. Battery cameras are another category entirely. The switch can transport network data to a suitable wired device without being able to power it, so separate the two requirements in your equipment list.
Read the per-port ceiling and total power budget together
The per-port maximum answers whether one device can be supplied. The total budget answers whether all connected devices can be supplied together. RLA-PS1 is documented at up to 30W per PoE port with a 120W total budget. RLA-PS1E also lists up to 30W per PoE port but a 65W total budget. Eight ports rated at 30W do not turn a 120W switch into a 240W supply. Equally, four 30W-capable ports do not provide 120W from a 65W unit. Both limits need to pass for the proposed arrangement to make sense.
Use documented maximum loads for a planning example
Suppose a hypothetical set of four devices has documented maximum requirements of 12W, 12W, 18W and 20W. Their sum is 62W. This is arithmetic for illustration, not the consumption of four named cameras in our shop. It sits close to a 65W budget, so an actual design needs allowance for the applicable powering standard, losses and operating conditions rather than treating the number as a guaranteed fit. If later replacing a camera with a more demanding model, redo the sum. Where consumption is unknown, obtain the relevant specification instead of borrowing a value from a similar-looking camera.
Check nighttime and moving-camera requirements
A camera can require more power when infrared lighting, a spotlight, a heater or a motor is active. A daytime image working normally does not prove that the arrangement will remain stable overnight. Use the manufacturer maximum or stated powering requirement, not a brief idle reading as the sole design basis. Where a model needs PoE+, verify the power sourcing equipment against that requirement even if a low-power trial appears to work. Intermittent nighttime restarts deserve an investigation of the power path, cabling and device status as well as the network. They are not automatically a software problem.
Plan the switch, router and recorder as one network
A PoE switch supplies cameras and carries their traffic; it does not itself record video. An NVR, supported local card or another documented recording destination is still needed. Follow the recorder manufacturer topology for cameras placed behind a separate switch. Avoid making an extra cable loop simply because two uplinks are available. Reolink publishes a specific RLA-PS1 connection guide, including restrictions on simultaneous connections to router and NVR ports. The correct arrangement depends on the actual devices. Sketch each link and label its role before purchasing, especially when keeping an existing recorder or mixing separate networks.
Speed, cable condition and location remain separate checks
RLA-PS1 documentation lists 10/100Mbps PoE ports and Gigabit uplinks, while RLA-PS1E lists Gigabit camera ports and a Gigabit uplink. Port speed is separate from the wattage budget and the recorder incoming bandwidth. Check all three when planning several high-resolution streams. Use appropriate genuine network cabling, protect outdoor camera junctions as instructed and place an indoor-rated switch in a dry, ventilated position. A weatherproof camera does not make its switch or unprotected connectors weatherproof. Extended cable modes can change performance, so read their conditions instead of assuming normal speed over any distance.
Power management is a safeguard, not extra capacity
Reolink describes power management that disconnects ports when the total load exceeds the switch budget. For RLA-PS1 the documented sequence starts from Port 8; for RLA-PS1E it starts from Port 4. This protects the budget but can leave a camera unavailable. It should not be used as a normal method of sharing insufficient power between cameras. If a device disappears when another starts its light or motor, compare the total requirement with the budget and check the event history. Leave room for the intended operating modes rather than relying on automatic port shutdown to keep the rest alive.
Make an equipment list that another person can verify
Record every camera model, required standard, documented maximum power, cable route and recording destination. Add the switch adapter, uplink connection and planned expansion. Mark unknowns clearly. For an existing shop system, include the NVR hardware and firmware rather than just its channel number. After installation, verify the intended cameras together during their normal day and night operating modes, plus playback and a normal restart. These are commissioning suggestions, not proof that Elechid has tested a particular combination. If you only need to extend network data to a separately powered device, say so; that can lead to a different purchasing decision.
Relevant products and checks before ordering
- Reolink RLA-PS1：Eight powered PoE+ ports, 120W total; verify every camera requirement.
- Reolink RLA-PS1E：Four powered PoE+ ports plus one uplink, 65W total.
These recommendations use documented specifications rather than laboratory or site testing by Elechid. Before ordering, provide the full model, supplied regional version, hardware revision and firmware where available. Describe the existing power source, network, recording arrangement and the result you need. Confirm each required function separately: a shared brand, similar housing or matching connector does not establish compatibility. Check the individual product page for its supplied accessories, price, availability and warranty. Keep account passwords, verification codes and private camera access details out of any enquiry.
Manufacturer sources and evidence limits
- Reolink RLA-PS1 power and port specifications
- Reolink RLA-PS1E official specifications
- Reolink camera-specific power requirements
- Reolink RLA-PS1 network connection guide
The linked manufacturer pages support the documented features and limitations discussed here. Hong Kong scenarios, troubleshooting sequences and purchase comparisons are editorial guidance. A promised future update on an older page is not evidence that a feature is available now. Interfaces, supported devices and account-region services may differ; use the instructions for the equipment actually supplied. This guide does not promise on-site installation, monitored security response or services that are not listed.
