User's Manual

4 Installation and Connection
33
4.4 GN 15/30/50 E
5PIN Installation
Modules
4.4.1 LED Ring
Fig. 5: LED ring
external powering.
Refer to fig. 5.
Table 3: Electrical
values for external
powering of LED
ring
4.4.2 Bass Cut,
Installation,
Conne
ection
4.5 GN 15/30
/50
Installation
Modules
4.5.1 MIC OPEN
Indication
Pins 2 and 4 on the 5-pin XLR connector are available for
powering the LED ring from an external source.
The specifications of resistor R1 depend on the available
powering voltage V:
Refer to Sections 4.2.2 and 4.3.2.
The LED rings on the GN 15/30/50 Installation Modules
will be powered from the phantom supply. (See also Sec-
tion 4.3.1.)
To obtain an open channel indication, the installation tech-
nician may connect the LED ring to an external power
source. In this mode, the LED ring will light much more
brightly to draw the required attention to the open micro-
phone.
DISCREET ACOUSTICS modular
1
2
3
4
5
Audio ground
Audio +
Audio -
LED +
LED -
R1
S1V
+
-
V R1 Max. Power
6 V 390 Ω 0.1 W
12 V 1000 Ω 0.25 W
24 V 2200 Ω 0.25 W
48 V 4700 Ω 0.5 W
4513_09_BDA_DAM_Hex0909_ps.qxd 11.09.2009 10:45 Uhr Seite 33