Harris Legacy 99-1300-0, Operation & Technical Manual

Page: 54 / 98

Revision B • 1/03
H A R R I S C O R P O R A T I O N
2-42
2 Installation
STUDIO MODULE — EXTERNAL (WITH DIP SWITCH 7 SET TO OFF)
This configuration (DIP switch 7 set to Off)
is used in applications where the External lo-
cation does not have a talent mic connected to
a console input, but is a location that needs to
talk to the control room and studio. This re-
quires that a dynamic microphone be connected
to Talk From External audio (pins 1, 2, 9) and
a powered monitor speaker be connected to Talk
to External audio (pins 3, 10, 11).
A custom talkback panel would connect press
to talk switches to the Talk to C/R, Talk to Stu-
dio, and Talk to Studio Host inputs (pins 14, 4,
and 5). The common side of the switches con-
nect to Logic Ground (pin 16). Jumper pin 15
to pin 7 to activate these inputs.
Talk to External tally (pin 6) can be used to
light a talk tally. The common connection is
Logic Ground (pin 16).
See pages 2-44 & 2-45 for details on the func-
tions with DIP switch 7 set to On.
Signals with DIP Switch 7 Set to Off
(wire insertion end view)
15
14
Inter
nal Logic
Talk to Control Room (-)
Activate Logic Inputs (+)
Logic Ground
16
Logic 5VDC
Logic 5VDC
6 Talk To External Tally
7
8
5
4
Talk to Studio (-)
Talk to Studio Host (-)
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.
Studio Module, External (DIP Switch 7 Off) — Simplified Logic Diagram
Logic 5VDC
Logic 5VDC
Talk to Ext. Tally
Talk to Studio Host (-) *
Talk to Studio (-) *
Talk to Ext. Audio (low)
Talk from Ext. Audio Shield
Talk from Ext. Audio (low)
Logic Ground
Activate Logic Inputs (+)
Talk to Control Room (-)
no connection
no connection
Talk to Ext. Audio (high)
Talk to Ext. Audio Shield
Talk from Ext. Audio (high)
8
7
6
5
4
3
2
1
16
15
14
13
12
11
10
9
Audio Connections
Talk Audio to External (pins 3,10,11)
Talk Audio From External (pins 1, 2, 9)
* Pin function only when DIP switch 7 is set to Off