Tele
Switching process in junction simulator circuit BL If there is congestion, all junction circuits and possibly a call-back unit being engaged, ... relays B2, IF2 and Tl also operate if the time supervision relay is free (see circuit diagram for junction simulator circuit BL, Fig. ... After the operation of B5, B6 and B4 also operate and extend congestion tone PSU to the upper winding of Bla, from which the pulses areanbsp;...
| Title | : | Tele |
| Author | : | |
| Publisher | : | - 1968 |
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