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7.16.5
Workshop Test Mode, Continued
TEST LEVEL (5)
This test is not applicable to RD494.
TEST LEVEL (6)
This test mode is used to test the resistor ladder network used to synthesize the various
resistance values required for the different control functions.
Set SW1(1234) to OFF OFF OFF OFF to allow testing of output 1 (DB25 Pin5) resistance
to Ground (DB25 Pin 13).
LEDs on the front edge of the card then indicate the Function Number 1 to 16 (see
above table).
The Test Button at the top front of the card when held down presents the resistance to
Output 1.
Releasing the button steps to the next function where again holding down the button,
switches the resistance to the output.
This sequence continues through all 16 functions as 2 groups of 8.
The sequence returns to Function 1 after the completion of Function 16.
FINISH TESTING
To exit the workshop test mode, the RD494 module must be powered-down (or removed
from the subrack). When power is applied again, the RD494 module will resume normal
operation.
Rev. C
7.16-9
HMXMU001018
10/06
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