TELEPHONE No. SA 4285
Telephone that works on the Telestructor system.

The system uses main and extension telephones.

A Control Unit 1/SA 4285 (Drawing - 94962) is used and this has Subscriber Units plugged into it.

There is not much information on this system but it may be a telephone system demonstration unit as Coin Boxes can be connected to it.

Introduced in 1975.

Circuit Diagram - SA4285.

Specification - S1188.

ADDITIONAL INFORMATION

Model Mark Red Yellow Blue Green Introduced Remarks
Tele 3/SA4285 Mk 1 y y     4/75 Telestructor main telephone
Tele 4/SA4285 Mk 1     y y 4/75 Telestructor extension telephone

 

 
 
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Last revised: February 12, 2023

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