Telephone Auto Central Office Parts

End item NSN parts page 1 of 11
Part Number
NSN
NIIN
000-3001-973 Film Fixed Resistor
000052695
000-8004-407 Connector Adapter
009267523
000-8005-044 Connector Adapter
009267523
0000034-182 Mica Dielectric Fixed Capacitor
010310446
0031.1666 Fuseholder Subassembly
010870836
00438-60026 Radio Frequency Cable Assembly
012102029
0098-LL-TJ2-4264 Electrical Receptacle Connector
011768988
01-67-7110 Electrical Wire
005833789
010-0264-01 Test Probe-lead Assembly
010930834
010922863 Fire Extinguisher Bracket
005954085
011036 Tubeaxial Fan
011404361
011036-1928SF Tubeaxial Fan
011404361
011036T Tubeaxial Fan
011404361
012176R Radio Frequency Cable
008125034
0126001-1 Flat Washer
011261643
01348-00503 Radio Frequency Cable
008125034
0160-4766 Ceramic Dielectr Fixed Capacitor
012596347
016837B Plug-in Electronic Compon Socket
009311947
023-000824-223 Film Fixed Resistor
001387399
023979-8 Light Holder
005787401
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Central Office, Telephone Auto

Picture of Telephone Auto Central Office

A business telephone system is a multiline telephone system typically used in business environments, encompassing systems ranging from small key telephone systems to large-scale private branch exchanges.

A business telephone system differs from an installation of several telephones with multiple central office (CO) lines in that the CO lines used are directly controllable in key telephone systems from multiple telephone stations, and that such a system often provides additional features related to call handling. Business telephone systems are often broadly classified into key telephone systems, and private branch exchanges, but many hybrid systems exist.

A key telephone system was originally distinguished from a private branch exchange (PBX) in that it did not require an operator or attendant at the switchboard to establish connections between the central office trunks and stations, or between stations. Technologically, private branch exchanges share lineage with central office telephone systems, and in larger or more complex systems, may rival a central office system in capacity and features. With a key telephone system, a station user could control the connections directly using line buttons, which indicated the status of lines with built-in lamps.

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