THE UNS-20 MANAGERIAL TELEPHONE EQUIPMENT,
Abstract
The UNS-20 provides the following services: calling of the direct subscribers and conversing with them from either of the two consoles; establishing a connection from any console with dial-office subscribers over the trunks; receipt of a flashing call signal (from direct subscribers and over the trunks) at both consoles simultaneously, and of a sound call signal at one of the consoles; switching of the sound signal for all incoming calls to the manager's console; holding of the trunks and reconnection of them; conversation between both consoles and calling of one from the other; simplex loudspeaker communication between consoles; conference calls involving 3-4 direct subscribers and one dial-office subscriber; duplex calls with loudspeaker reception from the manager's console with direct subscribers and dial-office subscribers, with the connection of a UD-M duplex amplifier. The components of the UNS-20 along with their dimensions and weight are cited in the table. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 07, 1970
- Accession Number
- AD0702980
Entities
People
- D. M. Khein
- E. G. Stavrov
Organizations
- National Air and Space Intelligence Center