gec.gif (1164 bytes)GEC 1000 TYPE
CIRCUIT DIAGRAM

Here are two diagrams - you have to make up your mind which is the correct one for your telephone.  Under each diagram are instructions on how to wire the telephone up for the UK Plug and Socket system. The telephone in the upper diagram can be identified by only having 7 terminals in the main block, whilst the lower telephone has two sets of terminals labelled A & B (A is to the left and B to the right).

Using a standard BT line cord connect:

  1. White of line cord to terminal 5.

  2. Red of line cord to terminal 1.

  3. Green of line cord - spare - insulate.

  4. Disconnect orange wire on 2uf capacitor (insulate with tape).

  5. Blue of line cord to the connector on the end of the wire shown leading from the capacitor.

  6. If a 3.3k ohm resistor is fitted, then remove green wire from terminal 5 and terminate on terminal 2.

  7. Install 3.3k ohm resistor between terminals 2 & 5.

  8. Check transmission and replace transmitter if bad and always fit a Rectifier element across the receiver on terminals 4 & 6.  Click here for more information.

TEL17T/ATS Diagram



Using a standard BT line cord connect:

  1. White of line cord to A6.

  2. Red of line cord to B7.

  3. Remove strap between terminals B4 & B7.

  4. Remove straps between terminals A3, A4 & A7.

  5. Insert a strap between terminals A6 & A7.

  6. Insert strap between terminals A5, A2 & A3

  7. Blue of line cord to terminal A5.

  8. Green of line cord - spare - insulate.

  9. Check transmission and replace transmitter if bad and always fit a Rectifier element across the receiver on terminals B1 & B3.  Click here for more information.

 
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Last revised: 28 February, 2006

FM2