Grass Valley RS-422 Interface Board - Manual (Page 36)

Installation Procedures
36 RS-422 Interface Board Installation
5. When the RS422 Test window appears as shown in Figure 17, follow the
on-screen instructions for performing the loop-back test.
NOTE: Make a note of the switch positions on the RS-422 Connector Panel
before changing them to run the RS-422 diagnostic test.
Figure 17 shows the correct test results when a cable is connected between
ports P1 and P2.
Figure 17. RS-422 test results with a cable connecting ports P1 and P2
6. After you have finished verifying RS-422 board installation, shutdown and
restart Windows NT.
Now that you have completed installation verification, proceed with “Copying the
Driver Diskette Contents to the System Drive” on page 37.