Headset Safety; Bluetooth Wireless Headset Performance; Fcc Compliance Statements - Cisco DX650 User Manual

Product Safety, Security, and Related Information
Depending on the quality of these devices and their proximity to other devices, such as mobile phones or
two-way radios, some audio noise may still occur. In these cases, Cisco recommends that you take one or
more of these actions:
• Move the external device away from the source of the RF or AF signals.
• Route the external device cables away from the source of the RF or AF signals.
• Use shielded cables for the external device, or use cables with a better shield and connector.
• Shorten the length of the external device cable.
• Apply ferrites or other such devices on the cables for the external device.
Cisco cannot guarantee the performance of the system because Cisco has no control over the quality of external
devices, cables, and connectors. The system performs adequately when you use good-quality cables and
connectors to attach suitable devices.
In European Union countries, use only external speakers, microphones, and headsets that are fully compliant
Caution
with the EMC Directive [89/336/EC].

Headset Safety

When you use a headset, set the volume to a safe level. Permanent hearing loss or damage may occur if you
use a headset at high volume.
Do not use a headset at high volume to block out other noise. Lower the volume if you cannot hear people
speaking near you.
If you experience ringing in your ears, muffled voices, or other signs of hearing loss or damage, stop using
your headset and have your hearing checked.

Bluetooth Wireless Headset Performance

Cisco DX650 supports Bluetooth Class 2 technology when the headsets support Bluetooth. Bluetooth enables
low-bandwidth wireless connections within a range of 30 feet (10 meters). The best performance is in the 3-
to 6-foot (1- to 2-meter) range. You can connect up to five headsets, but only the last connected headset is
used as the default.
Because potential interference issues can occur, Cisco recommends that you move 802.11b/g devices, Bluetooth
devices, microwave ovens, and large metal objects away from the wireless headset.
For a Bluetooth wireless headset to work, it does not need to be within direct line-of-sight of the phone. Some
barriers, such as walls or doors, and interference from other electronic devices, can affect the Bluetooth
connection.

FCC Compliance Statements

The Federal Communications Commission requires compliance statements for the following:
• FCC Part 15.21
Headset Safety
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