Apparatus for connection to private circuits run by certain public telecommunication operators. Specification for apparatus for connection to digital circuits according to CCITT Recommendation X.21 bis Part 7, (31st December 1990)

• Record Type: Book
• Authors: British Standards Institution,
• Publisher Details: London : British Standards Institution
• Publication Date: 1990
• Extent: 1 online resource (13 pages)
• Subjects: 602.1841; Voltage; Instructions for use; Circuits; Marking; Electric pins; Electrical safety; Communication networks; Testing conditions; Telecommunication; Digital signals; Telephony; Interfaces; Telephone equipment; Communication equipment; Telephone networks
• Languages: English
• Related ISBNs: 0580180492
• ISSNs: 1047-8051
• 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.