Diverse 4000 Classic ~10th Edition ~ 19th September ’01 ~ 4167

Technical information

How many telephones can you have on the line?

All items of equipment have a Ringer Equivalence Number (REN) which is used to calculate the number of items that may be connected to any one telephone line.

The BT Diverse 4000/4010 base stations (with up to 6 handsets) have a total REN of 1. Any other instrument provided by BT may be assumed to have a REN of 1 unless stated otherwise.

A total REN of 4 is allowed per telephone line. For example: if the BT Diverse 4000 is used in conjunction with three extension telephones, each with a REN of 1, then the total REN = 4.

Only use approved power supply item code C39 280-Z4-C478.

R&TTE

This product is intended for use within the UK for connection to the public telephone network and compatible switchboards.

This equipment complies with the essential requirements for the Radio Equipment and Telecommunications Terminal Equipment Directive (1999/5/EC).

Helpline

If you are experiencing difficulty, please call the BT Diverse Helpline on 08457 908070.

Switchboard compatibility

Generally this telephone may be connected to switchboards which support tone signalling and timed break recall. In the event of any difficulties please consult your switchboard service provider.

GENERAL INFORMATION

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BT 4000 Classic manual Technical information, Switchboard compatibility, How many telephones can you have on the line?