Mini 12G-SDI to Fiber Converter with Tally and RS485
Model: LNK-M12G-1V1T1D Series
Overview
The LNK-M12G-1V1T1D Series is a compact, high-performance Mini
12G-SDI to Fiber Converter
with Tally and RS485, specifically engineered to integrate
multi-signal transmission into a space-saving
form factor—ideal for scenarios where installation space is
limited, such as portable broadcast setups,
compact control cabinets, or on-site surveillance deployments. As a
Mini 12G-SDI to Fiber Converter with
Tally and RS485, it combines ultra-high-definition (UHD) video
transmission capabilities with essential
auxiliary signals, catering to professional fields that demand both
miniaturization and multi-functional
integration.
This converter supports synchronized transmission of 1Ch 12G-SDI
video signals (with embedded audio
for seamless audio-video synchronization), 1Ch Tally signal, and
1Ch Backward RS485 data signals via a
single fiber optical cable—eliminating the need for multiple
cables, simplifying infrastructure deployment,
and reducing overall installation costs. It is equipped with a
local 12G-SDI loop output, allowing users to
monitor the source video signal in real time at the transmitter
end. This real-time monitoring function
ensures signal integrity before transmission, facilitates quick
troubleshooting in professional workflows,
and avoids potential issues caused by signal loss or degradation.
The Mini 12G-SDI to Fiber Converter with Tally and RS485 is
supplied as a complete set, including one
transmitter unit and one receiver unit, to form a full, reliable
transmission link. It supports a wide range of
video resolutions and formats, covering HDTV 4K2K (38402160@60Hz) for UHD applications, as well as
lower resolutions such as 1080P, 1080I, and 720P. This broad
compatibility ensures backward adaptation
to existing SD/HD/3G-SDI systems, making it flexible enough to meet
diverse project requirements—
whether upgrading to UHD or maintaining compatibility with legacy
equipment.
The integrated 1Ch Tally signal function is critical for
professional broadcast and live production scenarios,
enabling real-time status indication of video sources (such as
“on-air” or “preview” status) to ensure smooth
coordination between production teams. Meanwhile, the 1Ch Backward
RS485 supports bidirectional serial
data communication, allowing remote control of connected devices
like PTZ cameras, studio lighting controllers,
or industrial monitoring equipment. With its compact design, stable
multi-signal transmission, and broad format
compatibility, this converter is ideal for professional scenarios
including portable broadcast studios, live event
video transmission, large-scale UHD surveillance networks, and
remote industrial monitoring systems. It effectively
resists electromagnetic interference (EMI) and signal attenuation
over long distances, ensuring consistent UHD
video quality, reliable Tally status feedback, and smooth RS485
control—making it a practical and cost-effective
solution for modern professional video transmission needs.
Features
► Each SDI channel includes 8-channel audio embedded
► Automatic cable equalization to ensure signal integrity
► Supports ST-2082-1(12G), ST-2081-1(6G), ST-424(3G), ST-292(HD) and
ST-259(SD)
► Integrated Reclocker Locks to SMPTE Rates of 11.88Gbps, 5.94Gbps,
2.97Gbps, 1.485Gbps or Divide-by-1.001 Subrates and 270 Mbps
► Directly compatible with 12G/6G/3G-SDI camera systems
► Long transmission capability at least 10 km (6.2miles), up to 80 km
► Supports Tally and Backward RS485
► Supports hot swapping and hot plugging
► Full digital non-compression broadcast level transmission;
► super optic dynamic range and free of adjustment;
► fiber optic WDM/CWDM/DWDM technique;
►Supports 4K*2K(3840*2160@60Hz),1080P,1080I,720P.
Technical Indexes
Formats | Supports ST-2082-1(12G), ST-2081-1(6G), ST-424(3G), ST-292(HD) And
ST-259(SD) |
Compatible | Compatible with DVB-ASI and AES10 (MADI) |
Input | 1 x 12G-SDI on BNC |
Output | 1 x LC optical fiber |
1 x 12G-SDI loop-out on BNC |
Supported Resolution | HDTV 4K*2K, 1080P, 1080I, 720P |
Resolution range | 3840*2160@60Hz |
Input cable specification | ≤70m@12G SDI Belden 1694A |
Output cable specification | ≤70m@12G SDI Belden 1694A |
Data type | Backward Tally |
Data type | Backward RS485 |
Optical transmission bandwidth | 270MHz～12GHz |
Power | 5-15 VDC |
Power Consumption | 2 W (Max.) |
Dimensions (LxWxH) | 80 x 40 x 20 (mm) |
Storage Temperature | -40℃～80℃ |
Operating Temperature | -40℃～85℃ |
Ordering information
Model | Description |
LNK-M12G-1V1T1D-20 | Mini-type 12G-SDI to Fiber Converter with Tally, Reverse RS485 and loop out, SMF, LC Fiber Connector 20KM, including Transmitter and Receiver, used by pairs |
Application
