BT Versatility
Installation and maintenance Manual
Options Module MDF Connections
The options module is equipped with a stereo jack for an ‘external Music on hold’ input. Krone IDC connectors are provided for the Central Bell and the External extension.
The Central bell and the external extension are cabled with extension cabling. They are connected with a single pair a,b.
Central Bell
The Central Bell is cabled by running a cable pair from the central bell IDC on the Options Module to a master line jack unit. Bells/tone callers can then be connected to the line jack unit or
External Extension
This port is designed to operate “long line “ extensions up to a distance of 2 kilometres away from the main unit and is approved for connection of
Cable limitations
•
•The cable route should not be exposed to high voltage surges, such as lightning.
Note: These figures assume the use of 0.5mm2 diameter telephone wiring.
All Extensions should connect into standard line jack units. Extension cabling should not be exposed to high voltage surges, (for example, surges induced by lightning or neighbouring high
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