What is an HD-SDI Video Distribution Amplifier?

An HD-SDI video distribution amplifier (VDA) is an active device used to distribute digital serial video signals from multiple sources to multiple destinations.

Instead of running an individual video connection from every source to every monitoring or recording location, an HD-SDI distribution amplifier provides a centralized point for distributing the signals.

The VERSITRON HD-SDI distribution amplifier accepts up to 16 HD-SDI inputs and provides 32 outputs, making it useful when the same video signals need to be viewed or recorded at multiple locations.

How does an HD-SDI Distribution Amplifier Work?

The VERSITRON HD-SDI distribution amplifier receives SDI video through standard 75-ohm BNC inputs. The incoming signals are equalized and re-clocked before being distributed to the output ports.

The signal equalization compensates for attenuation that occurs when HD-SDI signals travel through digital coaxial cable. The re-clocking function then regenerates the signal before it is distributed to the multiple outputs.

A typical system can be configured as:

HD-SDI Cameras or Video Sources → HD-SDI Distribution Amplifier → Multiple Monitors, Recorders, or Other SDI Equipment

The amplifier can also be incorporated into larger fiber optic video systems when HD-SDI signals need to be transported between locations using fiber.

Features of HD-SDI Video Distribution Amplifiers

VERSITRON's HD-SDI Video Distribution Amplifier provides:

• 16 HD-SDI video inputs
• 32 HD-SDI video outputs
• 1.485 Gbps HD-SDI transmission speed
• 270 Mbps SDI transmission capability
• Signal equalization for digital cable runs
• Reclocking of incoming SDI signals
• Standard 75-ohm BNC connectors
• Standalone or 19-inch rack-mount installation
• 2U rack-mount chassis
• LED indicators for system monitoring
• Straightforward installation with standard SDI connections
• Compatibility with fiber optic video links

Technical Specifications

HD-SDI Signal Equalization and Re-clocking

One of the advantages of the VERSITRON HD-SDI distribution amplifier is its ability to equalize and re-clock incoming SDI signals.

As HD-SDI signals travel through coaxial cable, the signal can weaken over distance. The distribution amplifier receives the incoming signal, equalizes it to compensate for cable-related loss, and re-clocks the signal before sending it to the connected outputs.

This helps provide consistent signal quality across the multiple output connections and makes the amplifier useful in centralized video distribution systems.

Connecting HD-SDI Video to Fiber Optic Networks

HD-SDI distribution amplifiers can also be used as part of a larger fiber optic video transmission system.

When an HD-SDI video signal needs to travel beyond the practical distance of copper cabling, an HD-SDI fiber optic transmitter can convert the signal to an optical format for transmission over multimode or singlemode fiber. A fiber optic receiver at the remote location then converts the signal back to HD-SDI.

A typical long-distance system can be configured as:

HD-SDI Camera → HD-SDI Distribution Amplifier → HD-SDI Fiber Transmitter → Fiber Optic Cable → Fiber Receiver → Remote SDI Equipment

This architecture allows a centralized HD-SDI video source to be distributed locally while also extending selected video signals to remote locations.

Applications of HD-SDI Video Distribution Amplifiers

HD-SDI distribution amplifiers are commonly used when professional digital video signals need to be distributed to multiple destinations.

Typical applications include:

• Broadcast and television production
• Professional video production
• Post-production facilities
• Video switching and distribution
• Outside broadcast vehicles
• Security and surveillance systems
• Control rooms
• Transportation and infrastructure monitoring
• Defense and security applications
• Cable and satellite operations
• RF signal processing
• Corporate and professional AV environments

HD-SDI Distribution for Multiple Monitoring Locations

The VERSITRON VDAHDSDI1632 provides a centralized solution for installations where multiple HD-SDI sources must be distributed to multiple destinations.

With 16 inputs and 32 outputs, the amplifier can accommodate multiple cameras or SDI video sources while providing multiple outputs for monitors, recorders, production equipment, or other SDI devices.

If your system requires transmission over long distances, the HD-SDI distribution amplifier can also be integrated with VERSITRON's fiber optic video transmission products.

VERSITRON HD-SDI Video Distribution Solutions

VERSITRON has manufactured data, voice, and video communications equipment since 1958. Our VersiVision video products are designed for professional applications where dependable signal transmission and distribution are important.

If you are designing an HD-SDI surveillance, broadcast, production, transportation, or professional AV system and need assistance selecting the appropriate equipment, contact VERSITRON at 1-800-537-2296 or reach out to our technical team.

We can help you determine the appropriate HD-SDI distribution and fiber optic transmission equipment for your application.

VERSITRON HD-SDI video distribution amplifiers are backed by our lifetime warranty.