semiautomatic keying circuits

semiautomatic keying circuits

[¦sem·ē‚ȯd·ə′mad·ik ′kē·iŋ ‚sər·kəts]
(communications)
Mechanization providing torn tape switching systems in teleprinter links; incoming and outgoing messages are converted to tapes and manually inserted into a teletypewriter distributor that mechanically keys the circuit automatically.