Working guides from the export team's specification desk: how links are actually chosen, budgeted and confirmed — including the comparisons that argue against our own headline products where the facts do.
What video over fiber is, which signals it carries, how a link is built from transmitter, fiber and receiver, and the specification questions that decide whether a link works first time.
PTZ cameras are the hardest common load on PoE: motors, heaters and IR push them past PoE+ into 802.3bt. How to size an injector by worst-case draw, input power and rate.
Why buildings are multimode and campuses are single-mode, what an OEO mode converter actually does, and how to specify the bridge between a riser plant and a spine plant.
The real difference between managed and unmanaged media converters is failure cost, not features. A decision framework, the middle options, and what to confirm before buying either.
Why camera estates move to fiber spines, the three architectures (direct SFP, media conversion, combination extenders), and the power question fiber never answers.
Injectors add power to a link; splitters take it back out. How the pair works, the classic combined design, and the mistakes that come from confusing the two directions.
Both extend HDMI; they differ in distance class, immunity, infrastructure and cost shape. A comparison written by a fiber catalogue that sells the copper option too.
What an E1 fiber modem does, framed versus unframed circuits, clocking and loop tests, and when the job outgrows a modem and becomes a PDH multiplexer.
Rate is the last thing to check. Host, standard, wavelength plan, reach and budget class — the five questions that select an SFP+ module correctly the first time.
Fiber carries no power — so 'PoE over fiber' is a hybrid architecture. The working patterns, headlined by a documented 8-channel PoE + SDI combination extender, and their power budgets.
Send the model name, the distance, the fiber type and the quantity. We will confirm the matching transmitter/receiver pairing, the optical module and the full specification of the exact model in writing before you pay.