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Plug-ended High Impedance Bell with 3 Metre cord for use on PST jacks.
The bell is line powered.
Originally made by Denis Ferranti Ltd, now made by Gemini
Connections Ltd.
APPROVAL STATUS
Bell No. 50E - S/1000/23/K/501724.
Modifications which have not received appropriate approval must not be carried out as to
do so would invalidate approval making connection unlawful. Bell No. 50E or 'Extension'
line cord may be shortened without breaching approval.
PLANNING
Bell No. 50E - for interior wall mounted use, supplied with plug ended cord for use with any
phone socket. Measures approx. 145mm x 145mm x 57mm, weight 470 grams. Comes with 2 wood
screws, wall-plugs and template for positioning screws. REN 1.
INSTALLATION/COMMISSIONING
Phone sockets provided for plug-ended ringing devices should have all conductors
terminated in accordance with standard cabling practice so that they may be used for
connection of other apparatus if required. Where for engineering reasons (e.g. PBX Night
Bell) or at customer request the ringer must not be unplugged, the plug may be secured by
fitting a 'bar locking'.
Exceptionally, where a phone socket is provided for an extension bell / Ringer at a
payphone, terminations may be made to phone socket terminals 3 & 5 only to prevent
unauthorised use by telephones.
The Line cord of Bell No. 50E may be cleated in place using cleats wiring 4C and if
necessary (with customer agreement) be shortened (to a minimum length of 300mm) where bell
/ tone caller is to be fitted adjacent to phone socket.
Click here for the difference between a Bell and a
Bellset
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