PIC-4704, MA-704 & AX-704 IFB SYSTEM
2-7
Figure 2-8: IFB Wiring Example
External Line
In
Exten. Bus
Out
IFB Extension
Mic Gain
IFB Input
External Line
In
Exten. Bus
Out
IFB Extension
Mic Gain
IFB Input
External Line
In
Exten. Bus
Out
IFB Input
IFB Extension
External Line
In
Exten. Bus
Out
IFB Input
IFB Extension
INTERCOM CHANNEL A
TERM
A
PS-702
65 W(MAX)
INTERCOM CHANNEL B
TERM
B
ON
OFF
ON
OFF
PROGRAM INPUT
AUDIO
ADJUST
TR-50
Talent Position 8
TR-50
Talent Position 6
Program
Source
TR-50
Talent Position 4
TR-50
Talent Position 3
TR-50
Talent Position 2
TR-50
Talent Position 1
AX-704
(Talent Positions 6 & 8)
MA-704
(Talent Positions 1, 2,3, 4)
MA-704
(Talent Positions 1, 2, 3, 4)
AX-704
(Talent Positions 6 & 8)
PIC-4704 #2
(Talent Positions 5, 6, 7, 8)
PIC-4704 #1
(Talent Positions 1, 2, 3, 4)
PS-702 Power Supply
Phone Jack
Tip - Conductor A
Ring - Conductor B
Sleeve - Shield
6 Pin - 6 Wire
Pin 1 - Common
Pin 2 - V+
Pin 3 - CH. A
Pin 4 - CH. B
Pin 5 - CH. C
Pin 6 - CH. D
3 Pin - 3 Wire
Pin 1 - Common
Pin 2 V+
Pin 3 - Audio
3 Pin - 2 Wire
Pin 1 - Common
Pin 2 - V+
Pin 3 - N/C
Access Location #1
(Director)
Access Location #2
(Tech. Director)
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