evertz 7700 - Figure 2-5: Powering the General Purpose Output Opto-Isolators from the Unit; Figure 2-6: Powering the General Purpose Output Opto-Isolators from an External Power Supply

7700 Multiframe Manual
7725DSK-LG / 7725DSK-LG-HD HD/SD Logo Inserter & Media Keyer
INSTALLATION Revision 1.4 Page 2-11
GND
From Internal
Circuit
Chassis
Ground
10k Ω
GPO
Vext
GP+3.3v
+ 3.3 Volts
Power
OK
500
Ω
Figure 2-5: Powering the General Purpose Output Opto-Isolators from the Unit
GND
From Internal
Circuit
Chassis
Ground
10k Ω
GPO
Vext
GP+3.3v
+ 3.3 Volts
5-25 VDC
n/c
Figure 2-6: Powering the General Purpose Output Opto-Isolators from an External Power Supply