The whole Master Control unit is installed in the driver’s console .

The picture shows the  component arrangement and dimensions of the power- /brake control unit which is to be operated by means of a customer specified grip. This grip consists of blank aluminum without any surface treatment.
As enlightens from these documents all snap action switches are wired up to a connector that is located at the end of flexible connecting cable. A strain relief makes sure that the connecting cable is properly fixed to the power- / brake control unit. The length of the flexible connecting cable can be adapted according to the project specific requirements. The appropriate mating connector is included in the scope of delivery.

A special connecting cable provides the electrical connection between the capacitive sensor, the potentiometers (which are part of the power- / brake controller) and the interface module that incorporates the following functions:

A 72V to 24V DC/DC converter Two independent 4 – 20mA output devices. The output device of the capacitive sensor which is used for automatic vigilance control (deadman system) Technical data Power- / brake control unit

Application
The reverser switch is included in a customized Master Control Unit according to specification no. 618585, which is used to control the traction and brake effort of a rail vehicle.

This Mode selector switch has a flexible connecting element, serving for the mechanical interlocking between the Power-/ Brake Controller and the Mode selector Switch in this Unit.

General Description Mode- /selector switch
The separate Mode-/ selector switch module is located at the left hand side of the Power-/ brake controller. It includes a control lever to select the driving direction and/ or driving mode. It also includes a key switch to activate the whole Master control unit. All binary signals (switches) are wired up to a connector that is located at the end of a breakout cable.

Interlocking mechanism
Between the mode selector handle, the key switch and the power-/ brake controller a mechanical interlocking system is installed. This interlocking mechanism serves the purpose of avoiding erroneous operation of these components. Whether or not a component is interlocked depends on the position of the other components.

To provide the mechanical interlocking between the separated Power-/ Brake controller and Mode selector switch a flexible connecting element (called Flexball) is used.