Owner manual

R
EGULATORY
I
NFORMATION AND
L
IMITED
W
ARRANTY
29
Manufacturer’s Declaration of
Conformity
3Com
3800 Golf Road
Rolling Meadows, IL 60008
U.S.A.
declares that the product U.S. Robotics
Cable Modem CMX conforms to the FCC’s
specifications:
Part 15:
Operation is subject to the following two
conditions:
(1) this device may not cause harmful
electromagnetic interference, and
(2) this device must accept any interference
received including interference that may
cause undesired operations.
Caution to the User
The user is cautioned that any changes or
modifications not expressly approved by the
party responsible for compliance could void
the user’s authority to operate the
equipment.
Performance Specifications
This equipment has a bit-error rate (BER)
less than 10
-8
when the signal-to-noise ratio
(SNR) is 23.5 dB or greater when operating
in 64 QAM mode, and when the SNR is
30.0 dB or greater when operating in 256
QAM mode.