User Manual

Chart 1 Important Safety Precautions
1.5 WLAN Safety Notice / Precautions
The signal strength on the WLAN IP phone and the parameters set by the network operator will greatly
affect the talk and standby times of the phone, as well as the range and quality of the phone call.
Please
read the following precaution items careful
.
Notice regarding environment
Please use it indoor or in a high and viewable place.
Electric waves can penetrate a wall and glass, but it can't
penetrate the metal. if this device is
accommodated in a metal rack, the transmission range
may become narrow.
CommunicationRange of wireless IP phone
When using an IP phone, the phones settings will affect the communicationrange and quality. Suggest to
keep with in 30 meters.
(3)
Notice regarding2.4GHz WLAN Electromagneticwave interference
The bandwidth of this device is identical to the bandwidth for RFID readers using in factory production
line (wireless transmission station permit required), low-power wireless transmission stations (wireless
transmission station permit non-required), and amateur wireless transmission stations (wireless
transmission station permit required).
Before using this device, please ensure that there are no RFID readers, specific low-power wireless
transmissionstations, or amateur wireless transmissionstations nearby.
If this device is interfering with RFID r eaders, please change bandwidth or stop use immediately,
and contact your sales representative.
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1.5.1 Device wireless LAN overview
No.
Menu Description
1
Bandwidth
2.4GHz Wireless Device
2
Modulation
DS-SS
OFDM
3
Default Interference
distance
Under 40m
4
Change bandwidth 4 Change bandwidthUses full bandwidth. Avoid RFID readers
and low-power wireless transmission station bandwidths.
The content on the above table are displayed on the Warning label at the back of the phone
Indicates the 2.4GHz Bandwidth is used.
Indicates the DS-SS OFDM mode is used.
Indicates the interference distance
is 40 m.
Indicates full bandwidth is used.
Figure 1.5.1 Lable notation
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