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JMA-9100/7100 Installation Manual > 5.OPTION UNIT > 5.4  INSTALLATION OF SUB-OPERATION UNIT AND EXPANSION OF 
TRACKBALL
5.4 INSTALLATION OF SUB-OPERATION 
UNIT AND EXPANSION OF 
TRACKBALL
5.4.1 Sub Operation Unit
With regard to JMA-7100 and JMA-9100 series radars, an operation unit can be 
expanded as an option.
Connect the cable to J4312 of terminal board circuit CQD-2097 located in the 
display unit (processing unit).
 
Fig 5-64: Sub-operation unit connection connector
 
MODEL: NCE-5163 (5-meter long cable)
J4312 SUB
J4311 MAIN