Eleven 12G-SDI models for 4K production links — single and multi-channel, with Ethernet, data and tally options — because 12G over copper barely leaves the rack.

12G-SDI carries a full 4K/60p picture on a single BNC — and on copper it pays for that density with distance: high-grade coax gives a 12G signal a working reach measured in tens of metres. Any 4K workflow that leaves one room therefore has a fiber chapter in it, whether it is a camera at the far end of a stadium, a gallery-to-studio link, or a 4K feed crossing a campus. This family is the manufacturer's answer: eleven models that convert 12G-SDI to fiber at the source and back at the destination, with the production ancillaries intact.
The range spans single-channel converters, units that add a Gigabit Ethernet path beside the 12G feed (for camera control networks and IP-based accessories), and models carrying two channels of backward RS485 plus tally — the return signalling a live 4K camera position actually needs. Because the family shares its design language with the 3G and HD lines, mixed-rate plants can standardise on one converter style across generations.
| Model (official product name) | Series | Documentation |
|---|---|---|
| 12G-SDI Video Fiber Converter with Gigabit Ethernet and 2Ch Backward RS485 | LNK-12GSDI-1V2R1GE | Specification captured from the official product page |
| 12G-SDI to HDMI 2.0 Converter | LNK-CSH-12G | Specification captured from the official product page |
| 1U Rack-Mountable 8-Channel 12G-SDI Fiber Converter | — | Full specification confirmed per model at quotation |
| 4-Channel 12G-SDI Fiber Converter with RS485 & Tally | — | Full specification confirmed per model at quotation |
| 4-Channel Bidirectional 12G-SDI Fiber Converter | — | Full specification confirmed per model at quotation |
| Mini 12G-SDI over Fiber Extender | — | Full specification confirmed per model at quotation |
| Mini 1Ch Forward + 1Ch Backward 12G-SDI to Fiber Converter | — | Full specification confirmed per model at quotation |
| Mini 24G-SDI to Fiber Converter with 2 x 12G-SDI (1xLC fiber) | — | Full specification confirmed per model at quotation |
| Mini 24G-SDI to Fiber Converter with 24G-SDI (1xLC fiber) | — | Full specification confirmed per model at quotation |
| Mini 24G-SDI to Fiber Converter with 24G-SDI (2xLC fiber) | — | Full specification confirmed per model at quotation |
| Mini Bi-directional 12G-SDI to Fiber Converter | — | Full specification confirmed per model at quotation |
All 11 models in the 12G-SDI family as listed in the manufacturer's catalogue; full specifications are confirmed per model at quotation.
A 4K camera position is a conversation: tally, intercom-adjacent data, RS485 control and often Ethernet. When specifying a 12G link, list the return signals with the same care as the video — several models in this family integrate them; a video-only unit plus three workaround boxes is the false economy.
At 12G rates the optical budget is unforgiving of dirty connectors and tired patch cords. Whatever model is chosen, the installation should budget for connector inspection and cleaning — and the link's optical module and rated reach should be confirmed in writing against your fiber before payment.
Models differ in whether the link runs on a single fiber (bidirectional optics) or a pair. State your available fiber count per route in the inquiry; it is a first-order filter on the shortlist.
The family's purpose is exactly that: the 12G rate that carries 4K/60p is converted at the physical layer, not compressed. Confirm the exact model's supported formats in writing before payment.
Yes — models in this family add a Gigabit Ethernet channel alongside the 12G feed. Name the control protocol in your inquiry so the pairing is validated.
A link's two ends must be a matched pair for the same rate family. A plant can mix families across different links freely.
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.