Audio Developments AD146 User Manual
Page 16

15
External powering of the mixer is via a 4-pin XLR (13).
XLR
Pin 1
0V
Pin 3
15V - 24V DC
Pin 2
Charge
Pin 4
12V - 15V DC
A suitable external power supply is Audio Developments’ AD100-09, but any external
DC source must be capable of delivering 750mA at 12V.
Note - When the chassis size exceeds 12 inputs, or when specified by the customer,
a
5 pin XLR (13) is fitted to accept external powering. The internal DC-DC Converter is
omitted. A suitable external power supply is Audio Developments AD 100-10.
XLR
Pin 1
0V
Pin 4
+ 48V DC
Pin 2
+ 12V DC
Pin 5
NC
Pin 3
+ 12V DC
‘D’ connector (14) provides connection to an optional meter bridge - in which case, the
mixer’s meters should be routed to MON.
CONV
IDC
CONV
IDC
Pin
1
(1)
Chassis
Pin
8
(15)
+V voltage rail
2
(3)
Spare
9
(2)
0V
3
(5)
Spare
10
(4)
PFL - left output
4
(7)
Spare
11
(6)
PFL - right output
5
(9)
Spare
12
(8)
Output D
6
(11)
PFL control
13
(10)
Output C
7
(13)
-V voltage rail
14
(12)
Output B
15
(14)
Output A
The 6-pin XLR connector (15) carries all signals to and from an outstation
(boom operator, director etc). The return appears only on the headphones output.
XLR
Pin 1
Audio Ground
Pin 4
Ret + ] Balanced return
Pin 2
Send +
Pin 5
Ret - ] at line-level
Pin 3
Send -
Pin 6
Control
The talkback-send output has a low output-impedance with a capability of driving
headphones of 25 ohms impedance or greater. Refer to MONITOR MODULE section
for a full operation description of this output/return.