17CastoTIG 1702/2202 AC/DC(16) - welding torch current socket ... for-connecting the welding cable of the TIG welding torch-connecting the electrode (or grounding/earthing) cable in rod electrode (MMA)welding, depending on the type of electrode being used(17) - ground (earthing) socket with bayonet latch ... dient zum-connecting the grounding (earthing) cable in TIG welding-connecting the electrode (or grounding/earthing) cable in rod electrode (MMA)welding, depending on the type of electrode being used(18) Remote control connection socket ... standardised connection socket for systemadd-ons (e.g. remote controls)(19) Torch control connection socket ... for connecting the control plug of a conventio-nal welding torch(20) Mains switch ... for switching the power source on and off(21) Mains cable with strain-relief device(22) Shielding gas connection socket(23) Gas “quick-connector” ... for connecting up the torch shielding-gas hoseRear viewFront view(17) (16)(18) (19)(21)(20)(22)Fig.5 Connections and switches on CastoTIG 2202 AC/DC power source(23)Connections, switches and system add-ons