TELEPHONE RP3771 | |||||||
Telephone RP3771 Part of Multiple-access Telephone Equipment (M.A.T.E.)
The 10 lines terminate on one switch so that any line may be connected to the telephone. The other switch selects the signalling condition to be applied to the ringing key for outgoing calls. On receipt of an incoming call an audible signal is received over the loudspeakers (or the station bell). It is then necessary to search for the calling line by rotating the first rotary switch until the call lamp glows. Lifting the handset then extends an earth to the Panel, Speaker, RP 4634 to release the calling condition and light the busy lamps. For outgoing calls the first rotary switch is switched to the required line; should this be engaged the engaged lamp will glow. If the circuit is disengaged the second rotary switch is set to the appropriate signalling condition and the ringing key operated. These telephones were fitted in large telephone exchanges and repeater stations.
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Last revised: February 12, 2023FM |