gec.gif (1164 bytes)GEC  PABX 4+25 & 8+50


The GEC 4+25/8+50 Line

Private Automatic Branch Exchange

Providing intercommunication between 25 extensions with connexion to four public exchange lines, this G.E.C. P.A.B.X. may be readily extended by the addition of a second automatic equipment unit to accommodate 50 extensions with eight public exchange connexions.

The cordless-type Attendant's Cabinet facilitates the simple and rapid transfer of exchange calls to any extension.

  • Automatic connexion between extensions.
     

  • Direct access to public exchange available to all or selected extensions as desired.
     

  • Key-calling equipment enables attendant to extend rapidly incoming calls from public exchange to the required extensions.
     

  • Trunk-offering facility provided at attendant's cabinet.
     

  • Automatic transfer and callback facilities on public exchange calls available to all or selected extensions.
     

  • Attendant call facility available to all extensions.
     

  • Each exchange line may be switched to a selected extension when attendant is not on duty.
     

  • Initial equipment unit and extension unit identical in size and construction, enclosed in steel dust-proof cabinets 6' 10" x 1' 11.5" x 1' 8".
     

  • Attendant's cabinet of sheet metal construction, designed for table mounting.

 

 Catalogue Numbers

Type 1st Cabinet 2nd Cabinet
4+25 Line PB2501 (Standard) PB2601 (Tropical)    
8+50 Line PB2501 (Standard) PB2601 (Tropical) PB2502 (Standard) Cat. No.  PB2602 (Tropical)

 

An advert for these models can be found in GEC Telecommunications Number 15, November 1952

 

 
 
BACK Home page GEC Main Menu Search the Site Glossary of Telecom Terminology GEC Telephone Quick Find All Telephone Systems

Last revised: November 26, 2021

FM2