FOR-A

FOR-A USF-101MDX4-12G 12G-SDI 4K Audio Multiplexer/Demultiplexer Card

FOR-A Virtual Production

Professional broadcast product designed for reliable production, streaming, and modern media workflows.

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Key Features

12G-SDI Single-Link Connectivity: Supports 1.5–12 Gbps for native 4K UHD, 1080p, and HD-SDI workflows.
8-Channel AES/EBU I/O: Embeds 8 channels (4 pairs) into 16-channel 4K SDI or de-embeds 8 selected channels.
Integrated Sample Rate Conversion: Built-in selectable SRC supports asynchronous AES/EBU signals.
Flexible Synchronization: Provides Frame, Line, AVDL, and Line (Min.) sync modes for precise audio-video alignment.
LTC & SNMP Control: Supports selectable LTC input/output and SNMP v2c monitoring via the host frame.
2-Slot USF Modular Design: Hot-swappable module compatible with FOR-A USF-105AS and USF-212BS frames.

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Features & Specifications

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Product Overview +

12G-SDI 4K Audio Embedding & Extraction

The FOR-A USF-101MDX4-12G is a compact 2-slot modular audio multiplexer/demultiplexer card engineered for USF series universal system frames. Supporting broadcast video rates from 1.5 Gbps to single-link 12G-SDI, this module processes 8 channels (4 pairs) of discrete AES/EBU digital audio. In multiplexing (MUX) mode, it embeds 8 external AES/EBU channels into an SDI program stream; in demultiplexing (DEMUX) mode, it extracts 8 user-selected channels from a 16-channel embedded SDI source to external AES/EBU outputs.

Asynchronous Audio Handling & Sync Modes

Equipped with menu-selectable Sample Rate Converters (SRC), the USF-101MDX4-12G seamlessly embeds and de-embeds asynchronous digital audio signals without timing errors. It incorporates four selectable frame synchronization modes—Frame, Line, AVDL, and Line (Min.)—to ensure low-latency signal passthrough across complex broadcast plants. Additional onboard controls include delay adjustment (5 ms to 1,000 ms), channel remapping, gain control, downmixing, and channel muting.

Centralized Management & Frame Compatibility

Designed for broadcast infrastructure, the module features a dedicated LTC BNC port for timecode routing and supports SNMP v2c for centralized network health monitoring. The card fits into FOR-A USF-105AS (1RU) or USF-212BS (2RU) frames, drawing redundant power directly from the main frame chassis.

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