Revision C • 1/04
HARRIS CORPORATION
2-44
2 Installation
di
ital
STUDIO MODULE — PRODUCER AUDIO & LOGIC
The 16-pin PRODUCER connector has the
producer’s talkback switch inputs and talkback
audio input (+4 dBu, balanced).
The PRODUCER signals come from a
PRE99-1188 Producer Talkback/IFB panel or
from a custom panel. The switch inputs (Talk
to Studio 1 (-), Talk to Studio 2 (-), etc.) are
activated by a logic low. This is done through
SPST momentary switches commoned to Logic
Ground (pin 16).
When the Producer is in the control room,
the Control Room Dim (-) input (pin 10) can
be used to dim the C/R MONITOR output. Use
DPST talkback switches to connect separately
to the switches and to pin 10; or use signal di-
odes to sum SPST talkback switches.
Logic Ground
Talk to External (-)
Talk to Studio 2 Co-Host (-)
Talk to Studio 2 Host (-)
Talk to Studio 2 (-)
no connection
Control Room Dim (-)
Talkback Audio (+)
PRODUCER Connector
Logic Supply +5 VDC
Logic Supply +5 VDC
Talk to Studio 1 Co-Host (-)
Talk to Studio 1 Host (-)
Talk to Studio 1 (-)
no connection
Talkback Audio Shield
Talkback Audio (-)
8
7
6
5
4
3
2
1
16
15
14
13
12
11
10
9
(wire insertion end view)
Audio Connection
(pins 1, 2, 9)
Studio Module, PRODUCER — Simplified Logic & Audio Diagram
Internal Logic
5
4
Talk to Studio 1 (-)
Talk to Studio 1 Host (-)
6
Talk to Studio 1 Co-Host (-)
13
12
Talk to Studio 2 (-)
Talk to Studio 2 Host (-)
14
Talk to Studio 2 Co-Host (-)
10
15
Talk to External (-)
Control Room Dim (-)
Logic Supply +5VDC
8
Logic Ground
16
Logic Supply +5VDC
7
Notes:
Opto-Isolated inputs are current limited
and work with +5 to +40 VDC logic.
1
9
Talkback audio (+)
Talkback audio (-)
+
_
2
Talkback audio shield
CHASSIS
PRODUCER
TALKBACK
BUS
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