2 Installation
digital
Revision C • 1/04
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2-13
Notes:
Opto-Isolator inputs can 5 to +40 VDC logic
Opto-Isolator outputs can handle up to 60 volts or 350 mA
18
19
21
20
9
7
8
24
22
13
15
23
4 Stop Command Pulse
Start Command Sustained
Commands Common
MIC: Logic Active Tally LINE: Cue Tally
Logic Ground
Logic Ground
Logic Ground
Tallies Common
On Tally
17
16
14
1
2
3
12
11
10
6
Inter
nal Logic
5 Start Command Pulse
Off Tally
Logic 5VDC
Logic 5VDC
Logic 5VDC
Logic 5VDC
On Input (-)
Off Input (-)
Cough Input (-)
MIC: Talk To C/R (-) LINE: Cue Input (-)
Ready Input (-)
Reset Input (-)
Activate Logic )
Reset Input (+)
Ready Input (+)
+5 volts
this is pin 6 (Logic 5 VDC), but it can
also be supplied by the peripheral device.
The Audio Reset and Ready inputs can use ei-
ther active low logic (pull to ground) or active high
logic (pull to +VDC) from peripheral devices. With
active high logic, Ready (-) and Audio Reset (-)
are tied to logic ground on the peripheral device.
Ready (+) and Audio Reset (+) then connect to
the appropriate logic outputs on the peripheral
device.
When active low logic is used by the peripheral
device, Ready (+) and Audio Reset (+) connect to
the logic supply voltage on the peripheral device,
and Ready (-) and Audio Reset (-) connect to the
appropriate logic outputs.
Pin 15’s signal (Logic Active Tally / CueTally)
changes depending upon whether the channel logic
switches (DS1/DS3) are set to mute any location.
When any mute is set (DS1/DS3, switches 2 - 5
are set to On), the module is set as a microphone
and the Logic Active Tally output (pin 15) is closed
when that input (input A for DS1 or input B for
DS3) is active. When no mute is set, the module is
set for line logic and pin 15 becomes a Cue Tally.
Setting DIP Switches
When referring to a module’s DIP switch set-
ting, a switch is Set to Off when it is to the right
and it is Set to On when it is to the left (orienta-
tion is from the board operator’s perspective). In
the illustration, all odd num-
bered switches are shown set
to On and all even numbered
switches are shown set to Off.
On = set Left
Off = set Right
Block Diagram, Universal Input
Module Logic Interface
