2-67
Cable Connections
Frame Signal Connections
Analog Reference Connection
Connect an analog signal such as color black or any other stable analog signal to
either J5 or J6, ANALOG REF IN, on the Com I/O Module in Slot C3. Terminate
any unused BNC connectors.
Input Signal Connections (Video and Key)
The Model 4000 allows up to 64 video/key inputs to be connected. These inputs
are connected to either a Serial Digital or an Analog Input Module at the rear of the
frame. Inputs are configured in the soft menus.
Component analog inputs can also be connected to each of three optional Chroma
Key Input Modules.
NOTE:
Grass Valley Products does not supply analog (BNC) signal cables or 75
Ω
terminators for the loop-through BNC connections. These must be obtained from other
suppliers.
Serial Digital Video Connections—
The serial digital inputs require the use of 75
Ω
coaxial cables. The use of 75
Ω
BNC connectors is recommended but not required.
Facilities with existing cables with 50
Ω
connectors on 75
Ω
cables need not change
their connectors. However, with the use of 50
Ω
connectors there is the possibility
of some errors occurring in the serial data stream.
The maximum length of serial digital cables should not exceed 225 meters (984.25
feet). Fiber optic distribution and transmission is recommended for runs longer
than 300 meters.
Connect serial digital video sources to the Serial Input Modules in Slots C8, C10-
C16 as required for your facility. Be sure to terminate each looping input with a
75
Ω
termination.
Summary of Contents for Grass Valley 4000
Page 3: ...iii Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 4: ...iv Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 34: ...1 20 Section 1 System Overview ...
Page 138: ...2 104 Section 2 Installation ...
Page 196: ...3 58 Section 3 Functional Description ...
Page 286: ...Index 6 Index ...