AKG C 535 EB, Инструкция пользователя, Страница: 9 / 21

C535 EB MANUAL 29
POWER SUPPLY
3 Power supply
The AKG C535 EB has been designed for phantom powering
according to IEC 61938. These standards specify a positive voltage
of 12, 24 or 48 volts on the audio lines versus the cable shield.
3.1 Phantom powering with balanced inputs
The following connection diagrams are recommended:
microphone output
screen screen
Rv
+B
~
1 2
3
1 2
3
2 1
3
b b
a
a
input amplifier
Figure 2: Input circuitry incorporating transformer
with
center tap (ungrounded).
microphone output
screen screen
2x Rv 2x Rv
+B
~
1 2
3
1 2
3
2 1
3
b b
a
a
input amplifier
Figure 3: Input circuitry incorporating transformer
without
center tap
(ungrounded).
Phantom
powering
with balanced
inputs