ITech IT6600C Series User Manual page 157

a) Connect the DC output terminals of the three instruments in parallel and
connect them to the device under test according to different output
modes.
b) Connect the and CTRL cables.
Wiring rules are as follows: Connect the GND/12V of the first single unit
to the second single unit's GND/PON, and the second single unit's
GND/12V to the third single unit's GND/PON, and so on, until the last
single unit is connected.
c) Refer to the wiring legend in the figure, connect the System Bus (i.e.,
the fiber inner ring interfaces F-TX and F-RX) for fiber-optic
communication between the master and slaves.
Insert the fiber optic module into the hole corresponding to F-TX, F-RX.
Insert the plug of the fiber optic cable into the fiber optic module and
hear a click sound to indicate that it is inserted in place.
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System-Related Functions
148