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43-1051.fm Page 3 Tuesday, August 17, 1999 1:08 PM
Important Note: Cordless phones
such as this one require AC power to
operate. When the AC power is off,
you cannot dial out or receive incoming
calls using your ET-551. To be safe,
you should also have a phone that
does not need AC power to operate
(not a cordless phone) so you can still
make and receive calls if there is an
AC power failure.
WARNING: To reduce the risk of
fire or shock hazard, do not ex-
pose this product to rain or mois-
ture.
CAUTION
RISK OF ELECTRIC SHOCK.
DO NOT OPEN.
CAUTION
: TO REDUCE THE RISK OF
ELECTRIC SHOCK, DO NOT REMOVE
COVER OR BACK. NO USER-SERVICE-
ABLE PARTS INSIDE. REFER SERVIC-
ING TO QUALIFIED PERSONNEL.
This symbol is intended to alert you
to the presence of uninsulated dan-
gerous voltage within the product's
enclosure that might be of sufficient
magnitude to constitute a risk of
electric shock. Do not open the
product's case.
This symbol is intended to inform
!
you that important operating and
maintenance instructions are in-
cluded in the literature accompany-
ing this product.
READ THIS BEFORE
INSTALLATION
Each device that you connect to the
phone line draws power from the
phone line. We refer to this power draw
as the device's ringer equivalence
number , or REN. The REN is shown
on the bottom of the base.
If you are using more than one phone
or other device on the line, add up all
the RENs. If the total is more than five,
your phones might not ring. In rural ar-
eas, a total REN of three might impair
ringer operation. If ringer operation is
impaired, remove a device from the
line.
!
FCC STATEMENT
This telephone complies with Part 68
of FCC Rules . You must, upon re-
quest, provide the FCC Registration
Number and the REN to your phone
company. These numbers are shown
on the bottom of the base.
Note: You must not connect your
phone to any of the following:
• coin-operated systems
• party-line systems
• most electronic key phone sys-
tems
3
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