Xerox 7042 - Manual (Page 176)

Reference
Data Coupler Information
This Xerox Telecopier 7042 facsimile machine contains an
internal data coupler. Its use is restricted by the FCC (Federal
Communications Commission). To comply with the FCC rules,
you must carefully read and follow the instructions listed below.
This equipment complies with Part 68 of the FCC rules. On the
rear of this equipment is a label that contains, among other
information, the FCC registration number and Ringer
Equivalence Number (REN). If requested, provide this
information to your telephone company.
The REN is useful to determine the quantity of devices you may
connect to your telephone line and still have all of those devices
ring when your number is called. In most, but not all areas, the
sum of the RENs of all devices should not exceed five (5.0). To
be certain of the number of devices you may connect to your
line, as determined by the REN, you should call your local
telephone company to determine the maximum REN for your
calling area.
Warning; Ask your local telephone company for the modular
jack type installed on your line. Connecting this machine to an
unauthorized jack can severely damage telephone company
equipment. You, not Xerox, assume all responsibility and/or
liability for any damage caused by the connection of this
machine to an unauthorized jack.
You may safely connect the machine to the following standard
modular jack: USOC RJ-11C. Use the standard line cord (with
modular plugs) provided with the installation kit to connect it.
Do not connect this machine to a party or coin operated phone
line.
Repairs to the machine should only be made by Xerox or an
authorized Xerox service agency. This applies at any time
during or after the service warranty period. If unauthorized repair
is performed, the remainder of the warranty period is null and
void.
If you find the telephone line is damaged or the telephone
company notifies you that your machine is causing damage,
disconnect the machine from the telephone line and call for
service. Do not reconnect the machine until necessary repairs
are made.
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