Adaptation Of Channel Control Unit To External Signal Con- Trols From The Antenna; Adaptation Of Channel Control Unit To External Signal Controls From The Antenna - THOMSON TTV 1707 Manuel D'utilisation

Chapter 2 - Installation

Adaptation of channel control unit to external signal controls from the antenna

2.7 - ADAPTATION OF CHANNEL CONTROL UNIT TO EX-
TERNAL SIGNAL CONTROLS FROM THE ANTENNA
The «ON AIR 1» and «ON AIR 2» main and secondary antenna commands received by
the Channel Control Unit may be of two different forms:
• A DC voltage of between + 5 Volts and + 48 Volts.
• A closed loop (contact).
Adaptation is made in the «SOUND/AUX» board of the Channel Control Unit.
Depending on the type of control from the mixer, set selector switches S800 and S801 (ON
AIR 1) and S900 and S901 (ON AIR 2) to the positions indicated in the figure below.
Note: Selector switches S1000 and S1001 are not used.
B1707M00LD
September 2000
ON AIR1 adaptation
Control S800-S801
+5 V to +48 V
Loop
ON AIR2 adaptation
Control S900-S901
+5 V to +48 V
Loop
S800
S801
S900
S901
S1000
S1001
SOUND / AUX PCB
Voltage
Contact
Voltage
Contact
THOMSON TTV1707 / CCU DT500
143
User manual