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BS 6403
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BS 6403 83rd Edition, July 29, 1983 Simple Telex Terminals Using Single Channel Voice Frequency Signalling for Connection with British Telecommunications Telex Network Incorporating the Designations of the Secretary of State for Trade and Industry in Relation to Telecommunications Stds.
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Description / Abstract:
Requirements for simple telex terminals for connection as subscribers' apparatus to the telex network. The requirements are intended to minimize the risk of interference to other subscribers with the telex network and other telex terminals.