Owner's manual

881/882 Video Test Generator User Guide (Rev A.22) 277
4. Choose the connector to which the transmit device is connected by entering the
following commands:
XVSI:IN 1 // Selects the HDMI-1 input connector
ALLU // Applies the interface setting to the generator
5. Enter the following commands to run the pseudo-random noise test.
PNSP 100 // sets pseudo-random noise for 100 sequencs
PNAU // runs the pseudo-random noise test for the specified
number of frames
Note: The test will stop automatically if configured to run in the single or multi-shot
mode. If you initiate the test in the continuous mode, you will have to enter a carriage
return to halt the test after PNAU is invoked.
6. Enter the following commands to view the results of the test.
GPER? // returns the pixel error rate in errors per billion
GNPT? // returns the number of pixels measured in billions
GCET? // returns the number of bad pixels for R, G, B components
GFED? // returns information about the first error encountered
To test cables through the command line:
1. Establish a session with the generator using either HyperTerminal over a serial
connection or Telnet over an Ethernet LAN. See “Configuring the generator’s serial
port” on page 32 or “Establishing a Telnet session with the generator” on page 34.
2. Connect the HDMI cable to be tested between an HDMI OUT and an HDMI IN
connector on the generator.
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.
3. Enter the following commands to activate the HDMI-H interface on the output port:
XVSI 4 // Selects the HDMI-H interface
ALLU // Applies the interface setting to the generator
4. Choose the connector to which the transmit device is connected by entering the
following commands:
XVSI:IN 1 // Selects the HDMI-1 input connector
ALLU // Applies the interface setting to the generator
5. Set up the pseudo-random noise parameters in accordance with “Configuring
pseudo-random noise output parameters” on page 276.
6. Enter the following commands to select an HDMI-H format:
FMTL TEST150 // Selects the TEST150 (e.g.) format