Professional video equipment continues to pack more inputs and outputs into smaller spaces. On high-density routers, monitors, recorders, converters and other broadcast equipment, there may simply not be enough panel space for rows of traditional full-size BNC connectors.

That is where compact professional video connectors such as HD-BNC and DIN 1.0/2.3 come into the picture.

Both connector types can be used to create professional 75-ohm SDI signal paths while requiring considerably less panel space than traditional BNC connections. However, HD-BNC and DIN 1.0/2.3 are physically different interfaces and cannot be plugged directly into each other.

So when comparing DIN 1.0/2.3 vs HD-BNC, which connector should you use for 3G, 6G or 12G-SDI?

WHY BROADCAST EQUIPMENT USES COMPACT SDI CONNECTORS

Traditional BNC remains one of the most familiar connector formats in professional video. Its bayonet-style connection is rugged, easy to operate and widely used throughout broadcast and production systems.

The disadvantage is physical size.

As manufacturers increase the number of SDI inputs and outputs on equipment, standard BNC connectors can consume a significant amount of rear-panel space.

Compact interfaces such as HD-BNC and DIN 1.0/2.3 allow much greater connector density.

These compact connections are useful on equipment including:

• Broadcast routers
• Video switchers
• Multiviewers
• Recorders
• Monitoring equipment
• Patch systems
• Mobile production equipment
• Fly packs
• High-density rack systems

WHAT IS AN HD-BNC CONNECTOR?

HD-BNC is a compact high-density coaxial connector found on professional broadcast and video equipment.

Its smaller footprint compared with a traditional BNC allows equipment manufacturers to place a larger number of coaxial connections onto a crowded equipment panel.

That makes HD-BNC particularly useful in professional systems where connector density and available rack space are important considerations.

AV-Cables offers professional HD-BNC cable assemblies in several configurations, including:

• BNC to HD-BNC
• HD-BNC to HD-BNC
• HD-BNC to DIN 1.0/2.3
• HD-BNC to Female BNC

When the system operates at 12G-SDI, the complete cable assembly—including both the coax and connectors—should be appropriate for the required signal bandwidth.

WHAT IS DIN 1.0/2.3?

DIN 1.0/2.3 is another compact coaxial connector format used throughout professional video and broadcast equipment.

Like HD-BNC, DIN 1.0/2.3 gives equipment designers a way to provide numerous professional coax connections without requiring the panel space needed for traditional BNC connectors.

AV-Cables manufactures DIN 1.0/2.3 broadcast video cable assemblies for applications including 3G-SDI, 6G-SDI and 12G-SDI systems.

Available configurations include:

• BNC to DIN 1.0/2.3
• DIN 1.0/2.3 to DIN 1.0/2.3
• HD-BNC to DIN 1.0/2.3
• Female BNC to DIN 1.0/2.3

THE BIGGEST DIFFERENCE BETWEEN DIN 1.0/2.3 AND HD-BNC

Although both connectors address similar high-density installation requirements, there is one critical practical difference:

An HD-BNC connector will not plug into a DIN 1.0/2.3 port, and a DIN connector will not plug into an HD-BNC port.

In most installations, that means the equipment itself determines which connector belongs at each end of the cable.

If a router provides HD-BNC outputs, the cable needs an HD-BNC connection at that end. If the receiving device uses DIN 1.0/2.3, the opposite end needs a DIN connector.

A purpose-built HD-BNC-to-DIN cable can make that connection directly without requiring separate adapters.

DIN 1.0/2.3 VS HD-BNC: QUICK COMPARISON

DOES ONE CONNECTOR PROVIDE BETTER VIDEO QUALITY?

For a correctly designed SDI system, HD-BNC vs DIN 1.0/2.3 should not be treated as a contest over which connector produces a "better picture."

The connector is only one part of the overall transmission path.

Reliable SDI performance depends on several factors:

• A correct 75-ohm signal path
• Connector performance
• Coaxial cable construction
• The required SDI data rate
• Total transmission distance
• Termination quality
• The physical condition of the cable and connectors

A professionally built cable assembly should therefore be selected according to the equipment interface and system requirements rather than expecting one compact connector format to produce a visibly superior image.

12G-SDI MAKES THE COMPLETE SIGNAL PATH MORE IMPORTANT

12G-SDI places greater demands on the transmission path than lower-data-rate SDI formats.

A connector that physically fits does not automatically mean the complete cable assembly is appropriate for the required 12G signal.

For 12G applications, use an assembly designed for the required bandwidth and select the coax construction according to the total transmission distance.

AV-Cables offers 12G configurations using professional Mini RG59, RG59 and RG6 coax depending on the application.

For a deeper look at coax selection, read our Mini RG59 vs RG59 vs RG6 SDI cable guide.

CONNECTING STANDARD BNC EQUIPMENT TO HD-BNC

A common installation involves traditional BNC equipment on one side and an HD-BNC interface on the other.

A purpose-built 12G BNC-to-HD-BNC cable can make that transition directly without adding a separate inline adapter.

CONNECTING STANDARD BNC EQUIPMENT TO DIN 1.0/2.3

The same approach works when a standard BNC interface needs to connect to equipment using DIN 1.0/2.3.

This type of cable is useful when integrating equipment that uses different physical connector formats within the same professional SDI system.

AV-Cables offers both 6G and 12G BNC-to-DIN configurations in the DIN 1.0/2.3 cable category.

CONNECTING HD-BNC DIRECTLY TO DIN 1.0/2.3

Some systems contain equipment using both compact connector formats.

In that situation, a direct cable assembly can keep the installation much simpler:

Instead of using an HD-BNC-to-BNC cable and then adding another BNC-to-DIN adapter, a purpose-built assembly can provide the required connector at each end.

That eliminates unnecessary connection points and produces a cleaner installation.

AV-Cables currently offers 12G HD-BNC-to-DIN 1.0/2.3 assemblies for this type of connection.

WHY MINI RG59 MAKES SENSE IN CROWDED RACKS

Smaller connectors address only one part of the high-density cabling problem.

If dozens of compact HD-BNC or DIN connections are attached to large-diameter coax, the resulting cable bundle can still occupy considerable space behind the rack.

Mini RG59 can be especially useful for shorter high-density connections because its reduced diameter and lower bulk can make routing easier in crowded equipment environments.

Applications can include:

• Router interconnects
• Patch systems
• Fly packs
• Mobile production racks
• Switcher connections
• Multiviewer connections
• Short rack-to-rack SDI paths

For longer transmission distances, a larger coax construction may be more appropriate depending on the SDI format and overall system design.

VERIFY THE EQUIPMENT CONNECTOR BEFORE ORDERING

When ordering cables for unfamiliar equipment, do not identify the interface simply as a "small BNC."

HD-BNC and DIN 1.0/2.3 are physically different connectors.

Before ordering a cable:

1. Check the equipment manual.
2. Identify the exact connector on each device.
3. Determine the required SDI format.
4. Measure the actual cable route.
5. Select the appropriate coax construction.
6. Specify the correct connector for each end.

This becomes particularly important when a system combines equipment from different manufacturers or different generations.

USE DIRECT CABLE ASSEMBLIES WHEN POSSIBLE

Adapters are useful when an unexpected connection problem needs to be solved in the field.

When the final equipment configuration is already known, however, using a cable with the correct connector at each end generally creates a cleaner signal path.

Instead of:

consider using:

Reducing unnecessary interfaces can make a professional installation easier to organize, troubleshoot and service.

HOW DOES HD-BNC COMPARE WITH STANDARD BNC?

HD-BNC and traditional full-size BNC deserve their own comparison, so we cover that separately.

Read HD-BNC vs BNC: What's the Difference and When Should You Use Each?

Together, the two guides cover the three connector formats you may encounter when designing professional SDI cable paths:

BNC   |   HD-BNC   |   DIN 1.0/2.3

SO WHICH CONNECTOR SHOULD YOU USE?

For most installations, the equipment makes the decision for you.

Neither connector needs to be declared universally "better."

The objective is to create the correct 75-ohm signal path between the equipment you actually have.

THE BOTTOM LINE

HD-BNC and DIN 1.0/2.3 address a similar challenge: providing professional coaxial connectivity when equipment-panel space is limited.

They are different physical interfaces, so the equipment at each end determines which connector is required.

If two devices use different connector types, a purpose-built BNC-to-HD-BNC, BNC-to-DIN or HD-BNC-to-DIN cable can provide a direct connection without relying on unnecessary adapters.

Connector selection is only one part of reliable SDI transmission. Coax construction, transmission distance, SDI data rate and termination quality also contribute to overall system performance.

PROFESSIONAL HD-BNC & DIN CABLES FROM AV-CABLES

AV-Cables manufactures professional HD-BNC cable assemblies and DIN 1.0/2.3 broadcast video cables for broadcast, live production, studios, mobile production, fly packs, corporate AV and systems integration.

Configurations are available for 3G-SDI, 6G-SDI and 12G-SDI applications using professional 75-ohm coax and the connector configuration required by your equipment.

AV-Cables professional cable assemblies are hand assembled in the USA and individually tested before shipment.

AV-Cables — Professional Broadcast Connectivity Solutions