Grass Valley Python 3G User Manual
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Python 3G Components
Python 3G Units with CWDM and Fiber Capability (Dual Input/Output)
Python 3G Units with CWDM and Fiber Capability (Dual Input/Output)
Two available models provide internal primary and backup for sixteen channels.
• The transmitter provides duplicate output of up to 16 SDI/Data signals.
• The receiver provides internal failover capability between the duplicate sets of 16
signals.
The models with this feature are listed in the following table. The Primary and Secondary
outputs are identical.
The following diagrams illustrate how the primary and backup signals work within the
Python 3G.
Fig. 3-18: The Input and Output ports
• The transmitter has two outputs each carrying eight signals. Both outputs are active all
the time.
• The receiver has two inputs each carrying eight signals.
The Python 3G unit has an internal splitter which receives fiber optic signals from each
input. If a good optic signal is detected on the primary side of the splitter, that set of eight is
used. If for any reason the optic signal is poor or missing, the system will automatically
switch to the secondary side of the splitter.
Fig. 3-19: Python 3G Transmitter with Primary and Backup Outputs
Part Number
Type
HD/SDI
Transmit
HD/SDI
Receive
CWDM
Equipped
Number of
Fibers
PY3-GHJK-D16
Transmitter
16
X
Yes
2
PY3-RRRR-X16
Receiver
X
16 Yes
2
Transmitter
Receiver