Icom VE-PG4 Operating Guide ver.1.36 - Page 196
Control Input Pull-up Setting, Short Circuit LOW, Open Circuit HIGH
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7 Connection Port Settings EXT I/O (EXT) screen Connection Port Settings > EXT I/O (EXT) ■■EXT Input Settings 6 7 8 9 10 11 12 13 14 15 16 17 15 Control Logic Select the port input state of the B3/B4 terminals (General control input). (Default: Short Circuit (LOW)) The control signal input is detected as follows: When the "Control Input Pull-up Setting" (16) is enabled: •• Short Circuit (LOW): Detects when the B3/B4 terminals are Shortened •• Open Circuit (HIGH): Detects when the B3/B4 terminals are Open When the "Control Input Pull-up Setting" (16) is disabled: •• Short Circuit (LOW): Detects when no volatge is applied between the B3 and B4 terminals. •• Open Circuit (HIGH): Detects when any volatge is applied between the B3 and B4 terminals. 16 Control Input Pull-up Setting Select whether or not to internally pull up the B3/B4 terminal (General control input). (Default: Enable) A1~A4 B1~B4 C1~C4 A1~A4 B1~B4 C1~C4 A1~A4 B1~B4 C1~C4 A1~A4 B1~B4 C1~C4 Refer to the INSTALLATION GUIDE Section 6 for the port details. 7-42
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