Hitachi BE-IR20 manual BE-IR21 internal sync

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11. Function setting and changes

11-6 BE-IR21 internal sync

The BE-IR21 factory setting is for external sync. If required, this can be changed to internal sync by changing chip parts.

Change the following chip parts for internal sync operation.

	Sync system		R280		R281		R282		R284
	External		Absent		0 Ω		100 Ω		Absent	Factory setting
	Internal		100 Ω		Delete		Delete		0 Ω
	0 Ω ：		Part code			RME1784
			Type			ERJ3GEYJ0R00V
	100 Ω		： Part code			RME1797
			Type			ERJ3GEYJ101V

(Main board side A)

(Main board side B)

Location of chip resistors

BE-IR20 / 21

16

Image 17

Contents Infrared B/W Camera Module Operation Guide Table of Contents Introduction SpecificationsGeneral Composition．Specifications BE-IR20 BE-IR20 External view Optical dimensionsTwo 2.5 mm Dia InstallationBLK GRN YEL RED Typical connectionGND Typical connectionExternal sync BE-IR21 AGC on / off Function setting and changesGamma response Function setting and changesAuto electronic shutter on / off Fixed Changes to fixed shutter modeBE-IR20 external sync BE-IR21 internal sync HD and VD output BE-IR20 only Options Options BE-IR20/21 and LA-IR20 combined dimensionsSpectral sensitivity typical example U t i o n