Since the installation of systems and devices often takes places under far from ideal conditions, i.e. with suitable tools and trained personnel, it was necessary to re-design the interface itself.

The PushPull system has been a successful part of HARTING's range for some time now. Types 4, 14 and Power L are classic rectangular connectors, which originate from the automotive industry and industrial device cabling. Factors such as durability and fast, but at the same time safe, installation remain in the forefront. Here, the saying "time is money" still applies. PushPull connectors enable all kinds of plug profiles to be securely connected in no time at all. An audible click informs the installer that the connection is now waterproof and closed. No tools, no torques, no special training for personnel.

Various types of plug profile can be accommodated in the universal "containers" of the housing for types 4 and 14. Depending on the application, these can be RJ45, optical fibres in plastic or glass or even USB for the transmission of data. If signals are to be bundled and forwarded, users can choose between 10 and 20-pole plug profiles. However the power supply can be safeguarded using the tool-less interface up to 690 V at 16 A. Together, this provides device manufacturers with all necessary solutions from a single source as part of a uniform and standardized system.

The newest member of the PushPull family came about due to the desires and requirements of the market. The type 4 Mini DisplayPort interface serves the increased use of HMIs in the form of screens and keypads, which are fed video signals. In order to avoid additional conversion of video signals into Ethernet, the DisplayPort interface supports direct forwarding of video signals. Of course, in addition to all the rectangular elements of the PushPull system, it is important not to forget circular plug types.

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