ADEMCO ACM380E Instruction Manual page 7

Selects between lens type employed, VIDEO for auto iris lens that requires a video drive signal, and DD
for auto iris lens that requires a DC drive signal.
9. Back Light Compensation (BLC) ON/OFF:
When strong, unwanted background lighting interferes with the clarity of important areas, turn this switch
to the "ON" position. The BLC is center-balanced meaning, that the BLC that compensates to the
backlight conditions outside the central area.
10. Auto Gain Control (AGC) ON/OFF
11. NC: Not connected.
12. Power Input: 24VAC Input Terminal (24VAC In only)
This terminal is for connecting the 24VAC 60 Hz power supply. Voltage must not exceed 26.4VAC.
13. Power Indicator (POWER): LED
14. Tripod Mount for bracket
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