Revision C • 1/04
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2-22
2 Installation
digital
UNIVERSAL INPUT MODULE — T/B OPTION LOGIC
The left logic connector has the talkback fea-
tures for the A input; the right logic connector
has the talkback features for the B input. Talk-
back is only active when the module is set as a
Microphone (a mute location is set on switches
2 thru 5 on DS1 and/or DS3).
The control logic can come from a PRE99-
1199 Mic Panel with Five Talks, or from a cus-
tom talkback panel. Each Talk command input
(Talk to Studio 1 (-), Talk to Studio 2 (-), etc.),
when held low, routes the pre-fader, pre-switch
module audio to the selected talk destination.
Privacy, when active, prevents anyone from
monitoring the pre-switch audio in the console.
While Privacy (-) is pulled low, Privacy Tally
Command (pin 5) is tied to Privacy Common
(pin 12), to provide a low output for activating
a lamp or LED Privacy Active indicator.
Universal Input Module, T/B OPTION — Simplified Logic Diagram
Inter
nal Logic
Privacy Tally Common
12
Logic 5VDC
Logic 5VDC
5 Privacy Tally Command
7
14
2
1
Talk to Studio 1 (-)
Talk to Studio 1 Host (-)
Logic Ground
6
Logic Ground
13
3
Talk to Studio 1 Co-Host (-)
9
8
Talk to Studio 2 (-)
Talk to Studio 2 Host (-)
10
Talk to Studio 2 Co-Host (-)
4
11
Talk to External (-)
Privacy (-)
Notes:
Opto-Isolated inputs are current limited and work
with +5 to +40 VDC logic.
Opto-Isolated outputs can sink up to 60 volts or
350 mA max. current flow.
T/B OPTION Connector
Logic 5 VDC
Logic Ground
Privacy Tally Command
Privacy (-)
Talk to Studio 1 Co-Host (-)
Talk to Studio 1 Host (-)
Talk to Studio 1 (-)
Logic 5 VDC
Logic Ground
Privacy Tally Common
Talk to External (-)
Talk to Studio 2 Co-Host (-)
Talk to Studio 2 Host (-)
Talk to Studio 2 (-)
(wire insertion end view)
7
6
5
4
3
2
1
14
13
12
11
10
9
8
