Whiteboard
The display board , also known as a panorama board or partition , is a railway signaling system . With their help, large track diagram interlockings , so-called relay interlockings, which are also called push-button interlockings or DR interlockings for short, are operated. The structure and function of a control panel correspond to that of the control desk of smaller and medium-sized DR interlockings , however, in contrast to the control desk, the control panel is set up vertically and generally in a semi-circle, slightly curved inwards, at a greater viewing distance in front of the operator's workstations.
Large relay interlockings require a control panel because the control table cannot provide the necessary overall overview of the schematically illustrated extended control area of such an interlocking . While a larger table has to be operated while standing, the operators sit at their workplace at a viewing distance of two to four meters in front of the table. From there, they operate the interlocking indirectly via a keypad or a number control panel. However, like a table, the control panel can also be operated directly while standing, which in practice only happens in exceptional cases. Certain operating actions, i.e. those that become necessary in the event of technical faults or other irregularities, are again not possible via the keypad or number control panel, but only on the control panel.