SIEMENS NTX 10
APPROVAL No. NS/1143/3/E/6000022
One of the first Siemens electronic systems to be introduced into the UK. The systems were sold and installed by Norton Telecom, who were subsequently bought out by Siemens. The system had a total capacity of 6+20 and could support POTS, MF and music on hold if additional cards were fitted.
Never remove the external cover with the mains supply still live!
Wall mounted telephones can be removed by lifting vertically upwards.
NTX 10 keysets were also used on early NTX 24 telephones systems.
Last revised: December 14, 2010