Subcarrier auto change-over unit is engineered to provide backup reliability in a compact, easy to use. When inserted in the PCO-818 frame, it's advanced modular design provides a level of flexibility never before available in an automatic change-over unit. When combined with its sync generator companion, the SPG-812, the PCO-818 frame can offer the best performance and reliability.
Provide backup reliability in a compact, easy to use
Modular design
Monitor an installations analog subcarrier signal and automatically switch to a backup analog subcarrier signal in the event of a failure
Bi-color LEDs provide instant status indication for each signal
Manual/Automatic switch allows the user to over-ride the automatic changeover function and select either generator in the system
Spec Sheet available - Yes
Standards:
NTSC or PAL Blackburst
Connector:
BNC
Signal Level:
0.3 V (Peak to peak)
Input Impedance:
>1kohms on the generator in service, 75ohms on the generator in stand-by
Amplitude Switch Points:
Between -6dB and -12dB of nominal
Crosstalk Between Generators:
> 60 dB (at 3.58MHz)
Reaction Time:
<1 S
Mode Switch:
Selects Automatic or Manual operation
Select Switches:
Selects Generator A or Generator B
Signal Enable Switches:
Enables/Disables detection of input signal