V
OLTECH
AC
I
NTERFACE
U
SER
M
ANUAL
98-072
ISS
7
PAGE
19
2.2. P
OWER
A
MPLIFIER OR
S
OURCE WITH
O
N
/
O
FF
C
ONTROL
1. Switch off the power amplifier or AC source.
2. Connect the power output of the AC source to the sockets marked 'Input from External Source',
using the red and black leads supplied. Observe the polarity of the connections. The source low
should be connected to the black socket using the black lead.
3. Connect the control inputs of the AC source to their respective outputs from the interface via the 'To
AC Source' connector. The ESE line is an enable or on / Off control; ESD is the AC control signal for
the amplifier. At least one of these controls must be connected for this mode to operate without
causing damage. See the technical information section of this manual for details.
4. Connect the 'External Source Output to Fixture' sockets to the test fixture using the red and black
leads supplied. These are the leads that have 4mm plugs at each end.
Example Wiring: Power Amplifier or AC Source
