Specification for multi-frequency tone signalling protocol for social alarm systems. (28th February 1991)

• Record Type: Book
• Authors: British Standards Institution,
• Publisher Details: London : British Standards Institution
• Publication Date: 1991
• Extent: 1 online resource (16 pages)
• Subjects: 602.1841; Telephone signalling equipment; Acoustic signals; Warning devices; Digital signals; Alarm systems; Data transmission; Control functions; Special-purpose alarms; Messages; Telephone networks; Information transfer; Codes
• Languages: English
• Related ISBNs: 058018997X
• ISSNs: 0023-5941
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
• Access Usage: Restricted: Printing from this resource is governed by The Legal Deposit Libraries (Non-Print Works) Regulations (UK) and UK copyright law currently in force.