eric6.gif (7121 bytes)

ERICSSON
SWITCHBOARD No. OA 500
 


768.jpg (11731 bytes)Type OA 500
Cordless Switches, Wall Pattern
(Pyramid Type)
Metallic Circuit
Local Battery System

OA 500/5 shown pictured to the right.

To be used in conjunction with any ordinary telephone instrument.

THE CONNECTIONS ARE MADE BY MEANS OF KEYS.

FRAMEWORK
Polished walnut.

EQUIPMENT
1 x KEY for each line for connecting the lines to the telephone instrument.
CONNECTING KEYS The number varies with the capacity of the board.
1 x CALLING AND CLEARING INDICATOR per line.
NIGHT BELL.
NIGHT BELL SWITCH.
CARBON LIGHTNING ARRESTER.

TYPE OLD TYPE No. No. of Circuits Height ins Width ins Depth ins Weight in lbs.
OA 500/3 635 3 14.97 7.09 4.33 8.82
OA 500/4 636 4 14.97 7.09 4.33 9.48
OA 500/5 637 5 14.32 9.04 4.33 14.32
OA 500/6 751 6 17.32 9.05 4.33 15.43


Taken from the Ericsson Telephone Catalogue 1914

 
 
Home page BT/GPO Telephones Ericsson Telephones Ericsson Home Page Ericsson PABX All Telephone Systems

Last revised: October 08, 2019

FM2