Vertaling van "Empty signal unit " (Engels → Nederlands) :

empty signal unit | idle signal unit | ESU [Abbr.]
lege signaaleenheid | lege signaleringseenheid | ESU [Abbr.]

SF set | SF signaling equipment | SF signaling unit | SF signalling equipment | SF signalling unit | SF unit | single-frequency signaling equipment | single-frequency signalling equipment
apparatuur voor enkelvoudige-frequentiesignalering | SF-signaling unit

2 VF signaling unit | 2 VF signalling unit | two-VF signaling unit | two-VF signalling unit
2 VF-signalleringseenheid