Harris Legacy 99-1300-0, Руководство по эксплуатации и техническому обслуживанию

Страница: 25 / 98

2 Installation
Revision B • 1/03
H A R R I S C O R P O R A T I O N
2-13
device). To use these inputs, pin 18 (Activate Logic
Inputs) must be jumpered to the + logic voltage.
Typically this is pin 6 (Logic 5 VDC), but
it can also be supplied by the peripheral device.
The Reset/Talk to Studio and Ready/Talk to
External inputs can use either active low logic (pull
to ground) or active high logic (pull to +VDC) from
peripheral devices. Which function is active is de-
termined by the setting of DS1/DS3 switches 2, 3,
and 5. When all are off, the module is set as a
Line Input, and the commands are Reset and
Ready. When DS1/DS3 switch 2, 3, or 5 is on,
then the module is set as a Mic Input and the com-
mands are Talk to Studio and Talk to External.
With active high logic, Ready/Talk to External
(-) and Reset/Talk to Studio (-) are tied to logic
ground on the peripheral device. Ready/Talk to
External (+) and Reset/Talk to Studio (+) then
connect to the appropriate logic outputs on the
peripheral device.
When active low logic is used by the peripheral
device, Ready/Talk to External (+) and Reset/Talk
to Studio (+) connect to the logic supply voltage
on the peripheral device, and Ready/Talk to Ex-
ternal (-) and Reset/Talk to Studio (-) connect to
the appropriate logic outputs.
Pin 15’s signal (Logic Active Tally / Cue Tally)
changes depending upon whether the channel logic
switches (DS1/DS3) are set to mute any location.
When a mute is set (DS1/DS3, switch 2, 3, or 5 is
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 (orientation 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.
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
Command Common
MIC: Logic Active Tally LINE: Cue Tally
Logic Ground
Logic Ground
Logic Ground
Tally Common
On Tally
17
16
14
1
2
3
12
11
10
6
Int
e
rnal L
o
gic
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 (-)
MIC: Talk to Ext. (-) LINE: Ready Input (-)
MIC: Talk to Studio (-) LINE: Reset Input (-)
Activate Logic )
MIC: Talk to Studio (+) LINE: Reset Input (+)
MIC: Talk to Ext. (+) LINE: Ready Input (+)
+5V
Reg.
Block Diagram, Universal Input
Module Logic Interface
On = set Left
Off = set Right