SB55FTC

Manual telephone switchboard

SB55FTC Description

Wood inclosure material, 57.188 inches overall length, 23.938 inches overall height, 38.250 inches overall width, telephone switchboard joint electronics type designation system item name.

Features

W/magneto

Properties of SB55FTC

Inclosure Material:
Wood
Overall Length:
57.188 inches
Overall Height:
23.938 inches
Overall Width:
38.250 inches
Joint Electronics Type Designation System Item Name:
Telephone switchboard
Joint Electronics Type Designation System Item Type Number:
Sb-55/ftc
Indicator Type:
Light
Battery Voltage Rating In Volts:
48.0
Battery Power Type:
Common
Dial:
Included
Position Quantity:
1
Ringing Feature:
Selective
Circuit Routing Type:
Cord
Maximum Line Accommodation:
102
Line Quantity:
102
Cord Quantity:
3
Line Type:
Common battery and common battery trunk
Ringing Frequency In Hertz:
20.0
Ringing Voltage In Volts:
110.0
Nondefinitive Specification/std Data:
No. Sh-55/ftc type
NSN:
5805-00-164-7086
Description:
Switchboard,telephone,manual
Cage Code:
81349

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 05/05/2024