Quantum Data 881 - Manual (Page 268)

250 Chapter 9 Analyzing Digital Sources and Cables
Testing cables and distribution systems
This section describes how to test HDMI or DVI cables and distribution systems using
pseudo-random noise. Using different signal formats, the HDMI/DVI cable can be tested
over a wide range of frequencies.
The procedures below provide instructions for testing cable and distribution systems with
the Analyzer both through the front panel and the command line.
To test a cable or distribution system through the front panel:
1. Connect the HDMI/DVI cable to be tested between an HDMI OUT and an HDMI IN
connector on the generator.
Note: If you are testing a fiber optic cable, plug the fiber optic cable connector marked
“transmitter” to the HDMI OUT connector on the generator, and plug the connector
marked “receiver” to the HDMI IN connector on the generator. Use a 5 Vdc power
supply adapter at the receiver side of the cable.
Note: If you are testing a distribution system, connect an access cable to the
distribution center to the HDMI OUT connector on the generator and a second access
cable to the HDMI IN connector on the generator.
2. Activate the HDMI-H or HDMI-D interface on the output port:
a. Press the Interface key to access the list of interfaces. A listing of signal interfaces
appears on the generator’s display as shown below.
b. Choose the HDMI-H or HDMI-D item by pressing the adjacent soft key. The
interface is activated and the port outputs the currently selected image and format.
3. Press the Interface key repeatedly until the following menu appears:
4. Choose the HDMI IN connector to which the cable is connected by pressing the
adjacent soft key.
5. (HDMI only) If desired, monitor the video signal received on the HDMI IN connector
(see “ Monitoring HDMI 1.3 analyzer signal input ” on page 239).
VGA
HDMI-D CVBS
S-VIDEO
SDI
*
HDMI-H
HDMI IN 1
HDMI IN 2 *