|N 706A1||N 707A1|
For magneto installations these switchboards are suitable as private exchanges, private branch exchanges or small community public exchanges.
The capacities of the two standard sizes of boards are as follows:-
N706A type: 50 extension lines, 10 exchange lines, 12 cord circuits.
N707A type: 100 extension lines, 10 exchange lines, 14 cord circuits.
In all cases, wiring for the full capacity is provided, but unless specially ordered, apparatus for exchange lines is not fitted. Extension line and cord circuit equipment figures are given below.
Equipped with strips of 10 drop indicators N4815D, strips of 10 jacks with numbered labels for the lines and enclosed type push-button restored indicators for clearing on the keyboard.
Associated with each pair of cords and the clearing indicator there is a speaking and ringing key, and in addition a common "ring back" key is fitted for ringing on the answering cords.
The night alarm is mounted inside and a key on the keyboard for switching it on or off as desired. A hand generator and a Bakelite micro-telephone are provided for the operator.
Two sections can be lined up and bolted together to provide from 50% to 1000% increase.
|Code No.||No. of Lines||Cord Circuits||Dimensions ins||Weight lb.|
|N706A1||50||10||54 x 21 x 27||169|
|N706A2||30||6||54 x 21 x 27||150|
|N707A1||100||12||54 x 27 x 27||216|
|N707A2||70||10||54 x 27 x 27||196|
Taken from the Ericsson Telephone Catalogue issue no. 49
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