BASIC HIGH-LEVEL TELETYPEWRITER SYSTEM

TM 11-5815-238-20

1-14. BASIC HIGH-LEVEL TELETYPEWRITER SYSTEM

ulses sent from either sending contact operates selector magnets in both teletypewriters. Both teletypewriters can

send and receive. Additional teletypewriters, sending units and/or receiving units can be added to this system, if needed.

1-15. BASIC LOW-LEVEL TELETYPEWRITER SYSTEM

ark (negative) and space (positive) pulses are made at sending TELETYPEWRITER A by closing and opening the

sending contacts. The transmitter module turns these closings and openings into 6 volt polar signals and applies them to

the signal lines. These polar signals are received by TELETYPEWRITER B receiver module and processed through the

selector magnet driver to the selector magnet.

oth teletypewriters are equipped with send and receive components but full two-way communication would require four

signal lines and transmitters and receivers interconnected. Additional receiving units may be connected to a sending unit

on a parallel basis only.

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