PoE Splitters

HX-PD03S: 48V to 12V PoE Splitter (Non-isolated)

HX-PD03S 48V to 12V PoE Splitter (Non-isolated) — 10/100Mbps forwarding; output DC12V/1.2A. It ships from the same factory line as our PoE switches, with OEM/ODM branding available.

HX-PD03S

Specifications

PoE Input: DC44V-57V(compatible with non-standard DC48V)
Output: DC12V/1.2A
Output Connector: 5.5×2.1mm
Speed: 10/100Mbps
PoE Mode: 12(+)/36(-) or 45(+)/78(-)

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OEM/ODM with custom branding, packaging and model numbers available. MOQ and pricing on request.

What is the HX-PD03S used for?

The HX-PD03S sits at the device end: it separates the 48 V PoE feed into data plus a regulated DC output for equipment that has no PoE port of its own. In a typical IP camera installation it is the part that decides how many devices can be powered, how much headroom is left for future cameras, and whether a long cable run still needs a relay point.

As built: 10/100Mbps forwarding.

What output does it provide?

The output side is specified as DC12V/1.2A — about 14.4 W at the connector, on a 5.5×2.1mm connector. The input accepts DC44V-57V(compatible with non-standard DC48V).

Match the output voltage to the device, not to the switch: a 12 V dome camera needs 12 V, a small 5 V access unit needs 5 V, and a 24 V PTZ needs 24 V. Then check current: the device label gives a rated current, and the splitter must cover it plus a margin for inrush.

One more distinction decides half the orders: isolated versus non-isolated. A non-isolated splitter keeps the input and output grounds tied together, which is fine when the camera and the switch sit on the same building earth. An isolated version breaks that path, and is the safer choice where the camera is on a pole or a separate structure and the two ends may sit at different ground potentials.

The connector is the part that fails quietly. 5.5 × 2.1 mm is the default barrel size for CCTV, but 5.5 × 2.5 mm and Type-C/Micro-USB appear on smaller units — a barrel plug that fits loosely will work on the bench and drop out on a vibrating pole.

How far can the link run?

Structured cabling limits a copper channel to 100 m between active devices. Switches and injectors terminate one segment; extenders exist to start a new one, so a run built from three segments can reach roughly 300 m — but every extra hop also re-supplies power from the same original budget.

The splitter sits at the far end of the segment, so it must be inside the 100 m limit like any other device — the DC output cable after it should stay short.

How do I choose between the models in this range?

The siblings in this family differ on a small number of axes. Compare the powered port count first, then the budget, then the uplink — a model with SFP uplinks only pays off when the run back to the core is fibre.

Model	Name	Ports · budget · class · speed
HX-PD024BT	BT Protocol PoE Splitter	10/100/1000Mbps
HX-PD02S	48V to 12V Standard PoE Splitter	10/100Mbps
HX-PD02S-G	48V to 12V Standard Gigabit PoE Splitter	10/100/1000Mbps
HX-PD02SAT	48V to 12V 2A Standard PoE Splitter	10/100Mbps

What should I confirm before ordering?

Five checks catch most of the mismatches we see on purchase orders for this family:

Port count against the camera count, with at least two spare ports — the listed powered ports here are the hard ceiling.
Budget against the sum of device labels at their peak, not their average.
Uplink: copper is fine inside a building; SFP matters when the run back to the core is longer than 100 m — see the Uplink Ports row above.
PoE class of the cameras versus the PSE class — a mismatch only shows up at the powered device.
Mechanical: see the size row above, and whether the enclosure is going on a wall, a DIN rail or a pole.

FAQ

Does the splitter limit the network speed?

It does not decode or store frames — it separates the DC component from the data pairs. What limits the link is the magnetics rating: 10/100Mbps. A 10/100 splitter in front of a gigabit camera silently caps that camera at 100 Mbps, which is usually fine for video but not for firmware pushes on a large site.

What happens if the camera needs 48 V instead of the output it provides?

Then this is the wrong unit — a splitter only steps down. Devices that need the 48 V rail on a barrel plug are fed by a passive injector or a direct PoE cable instead. Check the device label before ordering; no amount of wiring fixes a voltage mismatch.

Can I use it with a non-standard passive injector?

Only if the input voltage range covers what the injector sends. The specification here lists DC44V-57V(compatible with non-standard DC48V); passive 24 V and 48 V systems are not the same thing, and a mismatch is a hardware failure rather than a negotiation failure.

Can it be supplied under our own brand?

Yes — we run OEM and private-label production on this range: custom branding, packaging and model numbers on the same hardware. Ask for the current datasheet and a sample plan before committing a project to a specific variant.

Where can I see the full specification?

Every figure in the specification table above comes from the current production data for this model. If a figure matters for a tender, ask for the current datasheet before quoting — printed documents and production revisions drift apart.

Specifications for model HX-PD03S. Ask for the current datasheet before quoting.