Brother FAX-8350P, MFC-9650 Multi-Line Connections PABXs, Ringer Equivalence Number REN

20 C H A P T E R T W O

Multi-Line Connections (PABXs)

Most offices use a central telephone system, or PABX. The machine will work with most PABX or key systems that allow a two-wire analogue connection. However, we recommend that you have a separate telephone line for your machine. You can then leave the machine in Fax Only Mode to receive faxes any time of day or night.

If you are installing the machine to work with a PABX:

1It is not guaranteed that the unit will operate correctly under all circumstances with a PABX. Any cases of difficulty should be reported first to the company that handles your PABX.

2If all incoming calls will be answered by a switchboard operator, it is recommended that the Answer Mode be set to Manual. All incoming calls should initially be regarded as telephone calls.

3The unit may be used with either pulse or tone dialling.

Ringer Equivalence Number (REN)

This equipment has a REN value of 1. A BT line has a “bell ringing” capacity, or REN, of 4. This means that adding downstream-connected extension telephones and/or extension bells to a total REN of greater than 4 may cause a reduction in the bell volume. In extreme cases, it may cause the auto-answer facility of the machine to fail.

Therefore, up to three additional extension telephones (each assuming a REN of 1), may be connected downstream of your machine. For an explanation of “downstream connection, read “Using extension telephones” which follows.

Unless otherwise marked, a telephone provided by BT may be assumed to have a REN value of 1.