With standardized interfaces, the supported connectors are predefined. It may seem like this approach would be straightforward and limit options, but without proper management, there can easily be more than 100 different connector types. This creates confusion and risk during design, purchasing, and upgrades.

The CoaXPress standard addresses this challenge by carefully managing connector options to meet design requirements while preventing unnecessary proliferation of choices. Recently, the need has arisen to include additional connectors to support higher speeds and rugged environments. These additions have been carefully integrated with close collaboration between JIIA and the CoaXPress working group. Below are details about standard connectors used in CoaXPress implementations.

BNC vs. DIN: A Shift in Connector Preferences

When the CoaXPress version 1.1 was released in April 2013, one of the most significant changes was the inclusion of support for the DIN connector alongside the existing BNC standard. New products increasingly use DIN connectors because they offer multi-pin configurations—making them ideal as speeds exceed 6.25 Gbps in later CXP versions.

For cameras utilizing the CoaXPress interface, the DIN 1.0/2.3 connector (IEC 61169-29) is predominant. This connector features a push-pull locking mechanism: pushing the sleeve engages the connection, while pulling it disengages. However, due to play between the sleeve and connector housing, rotation or minor movement can occur during installation.

While this isn’t typically an issue for many applications, systems experiencing shock or vibration (e.g., global security) may face signal loss or even damaged contacts with PoCXP (Power over CoaXPress).

Ruggedized DIN Connectors: The Screw Lock Solution

The upcoming CoaXPress standard will introduce screw-lock DIN1.0/2.3 connectors designed for rugged environments. These connectors feature a coupling mechanism consisting of an external thread on the plug and matching internal threading in the receptacle. Torque is applied manually, ensuring secure connections.

Key Features:

  • Improved resistance to vibration and shock
  • Reliable engagement force dependent on mechanical dimensions
  • Secure disconnection process

Suppliers for Screw-Lock DIN Connectors

Below are manufacturers offering screw-lock DIN connectors compatible with CoaXPress 1.1 cameras and frame grabbers:

Manufacturer Type Number Cable Type
Components Express CX-401-1-401-XX CEI CXP Type 1
Cambridge Connectors NPF5051 issue 1.1 Belden 1855A
Radiall R20150713 RG179
PacificWestAmerica RD-C-20151008-01 Belden 1855A

Last Updated: 2025-09-04 20:46:18