OTS-20 User’s Manual
Press
“
CW
”
to access the steady light source working mode.
5.5 Background Light
There are seven background light colors in ; they are yellow, blue,
purple, white, red and two types of green color). Press
“
B_LIGHT
”
key to
turn on /off the background light . Then press
“↓↑”
to change the color
within 3 seconds or directly press
“
ENTER
”。
5.6 Battery
（
1
）
When the battery indicator on bottom left corner is empty, please
charge the battery as this indicates battery is flat.
（
2
）
Please note the indicator lamp when charging.
（
3
）
Please turn off the talk sets if the battery is low
。
5.7 Earphone
Use the volume control on the earphone to increase or reduce the
volume.
5.8 Please note
In order to realize the long distance conversation over a single
fiber ,we must use one set of talk sets
。
Each of them must have
different wavelength, the typical combination is 1310nm and 1550nm.
Multifunctional Optical Talk Set is full duplex voice communication.
please do not connect it to the other brands of talk sets
。
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