Signal I/O - pro bel 4407 Technical Manual

2.1

Signal I/O

The K4407.3U panel is equipped with BNC connectors for unbalanced digital audio,
whilst the K4407.2B panel is equipped with a 25 way 'D' type connector for balanced
digital audio. Both panels have a 15 way 'D' connector for control and AES balanced
input.
AES REF IN
AES OUT
AES IN
The K4407.3U rear panel
for unbalanced I/O
Control Pin outs
Pin Function
1 RS485 TX+
2 GND
3 RS485 RX-
4 FADER +V
5 GND
6
*
7 N/C
8 GND
*
INTERNAL CONNECTION – DO NOT USE
6
A
E
S
O
U
T
P
U
T
S
CONTROL
1
15
Pin
9
10
11
12
13
14
15
External fader
Fader +V
Wiper
Fader 0V
(GND)
Function
RS485 TX-
RS485 RX+
GND
FADER WIPER
*
GND
N/C
4407
10K
Ohms
Issue 2