Cimarron C Plus I, Service And Installation Manual, Page: 12 / 29

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SECTION 6 – Data Output - Details
Data output is the translated MDC-1200 ANI burst out of the C Plus.
Data output is jumper selectable for single ended or balanced
configurations. In Single Ended configurations, Data Out - is
referenced to ground. However, note that it is not directly shorted to
ground. In balanced systems, it is signal return. Always attach an
independent station ground to the rear panel P3 pin 8 or P2 pin 10.
The output is capacitor coupled for DC blocking, is MOV protected
and is completely isolated by relays when not actively encoding.
If connected to a balanced line, remove ground jumper JP-25. For
600 ohm operation, add jumpers JP-24 and JP-27.
Data output must be adjusted to ensure that the target console sees
a level about the same as the un-translated burst. Rear panel
potentiometer R5 is available to adjust the level.
The Self-Test command $$KEYT is used for setting outbound data
deviation. This command forces a 10 second burst of data from the
Cplus.