1754M1-28AA

Manual telephone switchboard

1754M1-28AA Description

Metal in closure material, 36.000 inches overall diameter, light indicator type.

Properties of 1754M1-28AA

Inclosure Material:
Metal
Overall Diameter:
Between 36.000 inches and 72.000 inches
Indicator Type:
Light
Battery Voltage Rating In Volts:
48.0
Battery Power Type:
Local
Dial:
Included
Position Quantity:
1
Ringing Feature:
Selective
Circuit Routing Type:
Cord
Maximum Line Accommodation:
200
Line Quantity:
200
Cord Quantity:
30
Line Type:
Local/common battery lines, 20 trunk lines
Ringing Frequency In Hertz:
20.0
Ringing Voltage In Volts:
90.0
NSN:
5805-00-892-1080
Description:
Switchboard,telephone,manual
Cage Code:
99872

Definition Manual Telephone Switchboard

An item consisting of a framework or inclosure on or in which are mounted switches, relays, indicator lamps, and/or drops, wiring, fuses, line and trunk terminations. May include dial. Provides for manual connection of a calling telephone set or trunk to a called telephone set or trunk. Connections are usually made by means of plugs, jacks, and cords, or by key type switches. May include means for signalling and supervision. May be of the multiple or nonmultiple type, and may be sectionalized.

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Last modified 05/04/2024