Black Box MC170A User Manual page 4

5. If the telephone company requests information
on what equipment is connected to their lines,
inform them of:
a. The telephone number that this unit is
connected to.
b. The ringer equivalence number.
c. The USOC jack required: RJ-11C.
d. The FCC registration number.
Items (b) and (d) can be found on the unit's
FCC label. The ringer equivalence number (REN)
is used to determine how many devices can be
connected to your telephone line. In most areas,
the sum of the RENs of all devices on any one line
should not exceed five (5.0). If too many devices
are attached, they may not ring properly.
6. In the event of an equipment malfunction, all
repairs should be performed by Black Box or an
authorized agent. It is the responsibility of users
requiring service to report the need for service
to the supplier or to an authorized agent.
LAN-SAFE FIREWALL
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