IFR COM-120C - Page 50

3-5
SECTION 3
COMPOSITE
14. AUDIO/DATA GEN Connector
600
Ω connector for output of audio and data generators. Access is selectable
from individual generator setup screens.
CAUTION:
DO NOT EXCEED 20 V MAXIMUM CONTINUOUS INPUT OR DAMAGE TO
THE COM-120C MAY RESULT.
15. DEMOD Connector
600
Ω connector for output of demodulated signals. Access is selectable from
individual generator setup screens.
CAUTION:
DO NOT EXCEED 20 V MAXIMUM CONTINUOUS INPUT OR DAMAGE TO
THE COM-120C MAY RESULT.
16. MIC/ACC Connector
Provides access for microphone or accessory equipment both generate and
receive lines are available.
CAUTION:
DO NOT EXCEED 20 V MAXIMUM CONTINUOUS INPUT OR DAMAGE TO
THE COM-120C MAY RESULT.
17. DATA SCROLL Keys
Allows operator to scroll through current test mode operation screen, scroll
through list of parameter selections and actively increase and decrease one digit
of numeric parameters.
Increasing and decreasing digits affects higher digits in parameter.
Current test mode operation screen changes with changed data; changed
parameter becomes current default unless ENTER Key is pressed.
Pressing ESC (Escape) Soft Function Key returns changed parameter to previous
setting.
18. EXT MOD
100 k
Ω connector allows input for external modulation source.
CAUTION:
DO NOT EXCEED 20 V MAXIMUM CONTINUOUS INPUT OR DAMAGE TO
THE COM-120C MAY RESULT.