The module VD is a versatile distributor and amplifier. Injected input signals, e.g. signals provided by the MTD system, are available at its four outputs. The VD ’s main task is buffering and distributing the output signals of GT or GL generator modules. User consoles like the TCU can be connected directly to the VD module. In case of an exclusive processing of LTC - or RS485 signals, it is possible to cascade multiple VD modules in order to increase the amount of output sockets.