Tape relay
Paper tape relay operation at US FAA's Honolulu flight service station in 1964
A tape relay is a method of retransmitting teletypewriter traffic from one channel to another, in which messages arriving on an incoming channel are recorded in the form of perforated tape, this punched tape then being either fed directly and automatically into an outgoing channel, or manually transferred to an automatic transmitter for transmission on an outgoing channel. Tape relay, sometimes informally called "torn tape operation", was commonplace during much of the 20th century.
References
This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C" (in support of MIL-STD-188).
See also
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