Compatibility Of Bnc Center Pins; Connecting To Monitors And Projectors Issues; Incoming Inspection - Tektronix WVR7000 Quick Start User Manual

Termination Requirements.
and the connecting cable serve as the termination. This monitoring connection is best because it checks the performance
of the entire serial path. The return loss of the waveform rasterizer is sufficiently high that, in most cases, the destination
receiver sets the system return loss.
In cases where the waveform rasterizer is placed at the end of a link, a BNC terminator must be installed on one side of
the loop-through input. The termination must be 75 Ω and DC coupled (good return loss extends to DC). Return loss must
exceed the following requirements:
Standard definition (SD) signals: >25 dB from 10 kHz to 270 MHz.
High definition (HD) signals: >25 dB from 10 kHz to 1.5 GHz.
Composite signals: >40 dB from DC to 6 MHz.
Most terminators designed for analog video have poor characteristics in the 20 MHz to 2 GHz range needed for SDI
interconnection. One example of a terminator with good high-frequency characteristics is the Canare BCP-TA.

Compatibility of BNC Center Pins

Most video equipment BNC connectors, whether 50 or 75 Ω, use a 50 Ω standard center pin. Some laboratory 75 Ω BNC
connectors use a smaller diameter center pin. The BNC connectors on the waveform rasterizer are designed to work with the
50 Ω standard (large diameter) center pins.
Do not use connectors or terminators with the smaller center pins. They could cause intermittent connections.

Connecting to Monitors and Projectors Issues

Some monitors or projectors may have trouble adapting to the XGA output from the waveform rasterizer. This is because
there may not be any significant signal in all four corners of the raster, so the monitor cannot find the edges of the active
area. To overcome this, select Status in all four tiles of the waveform rasterizer display, and then cycle the power on the
monitor to force it to reconfigure. If necessary, adjust the horizontal and vertical position and size to optimize the image, and
set the Picture Refresh Rate to match the monitor. (See page 8, To Connect a Display.)

Incoming Inspection

At your option, you can complete incoming inspection procedures. These procedures require no equipment aside from a
display, to check functionality. You will find the incoming inspection procedures in the WVR6100, WVR7000, and WVR7100
User Technical Reference that is included on the User Documents CD that shipped with your waveform rasterizer.
WVR6100, WVR7000, and WVR7100 Waveform Rasterizers Quick Start User Manual
If the waveform rasterizer is installed to monitor an operating link, the destination receiver
Installation
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