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ⓒ
2020
LaON
Technology Co., Ltd. All rights reserved.
58
Speaker Station Rear panel
1.
Sidetone NULL adjustment (Screwdriver) for Line A (2-wire)
5.
Sidetone NULL adjustment (Screwdriver) for Line B (2-wire)
2-wire sidetone can be nulled by the screwdriver-adjustable control.
To adjust the null control on each 2-wire channel
-
When using the headset, the Sidetone Null setting, and when using the gooseneck microphone with the loudspeaker,
the Sidetone Null setting may have different levels of adjustment.
-
Adjust the volume level of the 2-wire channel to a comfortable level.
-
Press Talk key on a 2-wire channel and speak into the microphone while turning the sidetone null control
slowly back and forth.
-
There may be a point where the voice and accompanying acoustic feedback disappear. This point is null.
2. 3.
A pair of Line A (2-wire) connector (XLR-3M, XLR-3F)
Typically, 2-wire intercom connection would have a 30VDC on Pin 2, coming from a Main station or an
intercom PSU. Base Station does not supply any power to the circuit. The second connector of a pair is a
loop-through.
2-wire pinout
Pin
Description
1
Ground (shield)
2
DC Power, 30V nominal
3
Unbalanced Audio
Note
: Speaker Station does not provide 2-wire Line power. If this 2-wire Line A is used, 4-wire Line A shall not
be used.
4.
Line B (2-wire) connector (XLR-3F)
This connector has the same pinout as the 2-wire Channel A connector.
Note
: Speaker Station does not provide 2-wire Line power. If this 2-wire Line B is used, 4-wire Line B shall not
be used.
6.
Line A (4-wire) connector (RJ-45)
7.
Line B (4-wire) connector (RJ-45)
If this 4-wire Line is used, 2-wire Line shall not be used.
8.
Line C (4-wire) input connector (XLR-3F)
9.
Line C (4-wire) output connector (XLR-3M)
10.
Line D (4-wire) input connector (XLR-3F)
11.
Line D (4-wire) output connector (XLR-3M)
Pin
Description
1
Ground
2
Audio +
3
Audio -
12.
Stage Announce connector (1/4” Phone Jack)
Pin
Description
Tip
Audio +
Ring
Audio -
Sleeve
Ground
Pin
Wire Color
Description
1
White
/
Orange
No connection
2
Orange
No connection
3
White
/
Green
Audio out +
4
Blue
Audio in +
5
White
/
Blue
Audio in -
6
Green
Audio out -
7
White
/
Brown
No connection
8
Brown
No connection
Speaker Station ISS800: Rear Panel
7
12
14
18
19
1
5
8
2
3
4
6
13
15
16
17
9
10
11