Spon NAS-8507A, Руководство пользователя

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IP network active speaker User Manual
power amplifier open automatically.
Power amplifier normally open: no matter the audio can be received or
not, power amplifier will be open always.
Examination mode(only
for constant voltage
back-up device)
please select use the examination mode or not.
Use: Start using the examination mode, the system will shield line input
and 2.4G wireless handset function.
Prohibition: normal mode
Remarks: The user can batches setting on "WEB batches configuration
tools" starting or prohibiting examination mode.
Network monitoring time
Setting network monitoring time, it is available only in the examination
mode.
Configuration coverage is between 100ms-3000ms, it defaults to 500ms.
Audio automatic detection function
In order to avoid line noise and sound resource produced noise output from the loudspeaker, when line input audio range
less than a specific value (Line input threshold), the amplifier will be closed with 1 min. Line input threshold is set from audio
parameters in web page, The audio range lowest level requirements is grade one, the highest is grade five.
Wireless amplification sampling rate
（
2.4G wireless module is available)
In web page, audio parameters can select different wireless amplification sampling rate, select the remote distance can
acquire further transmission distance, select high quality can acquire higher tone quality, the distance is relatively shorter.
Constant voltage backup
（
constant voltage backup module is available)
（
1
）
Constant voltage can be set in the web page for automatic backup, prohibit and compulsory this three modes, the
default mode is prohibit.
（
2
）
Automatic: When IP network active speakers in abnormal network, power down, terminal failure. It will automatically
switch the external constant voltage audio to the local speakers.
（
3
）
Prohibit: Power-up state can’t use constant voltage backup function.
（
4
）
Compulsory
：
Use the constant voltage backup function at any time.
Password Setting
You can revise the web page logining account and password from the WEB management parameters.
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