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Meridian 3
3.17.8 Monitor Audio Amplifier Input Impedance
The monitor audio amplifier shall have minimum 10K Ohm AC input
impedance
3.18 USB HUB 2.0 support
Connect the HUB port of the monitor to host PC’s USB port via USB cable,
Then attach external device to the downstream port of the monitor.
Check if the device can work properly.
3.19 POWER SENSOR
˨ˡ˖˧˜ˢˡ˔˟ʳ˥˸˼˸˸ʳ˹ʳ˻˸ʳ˹ʳ˷˸˸˶˼ʳ
For the presence sensor functionality, the following requirements are defined:
x Two IRs be used for user present detections, one IR is for transmission signals, the other one is
for receiving reflection IR signals
x User must be detected in the following range:
40 up to 100 cm (+ 20cm).
x Detection angle:
+- 30 degree (for IR LED )
x SENSOR key control,
Adjust detection distances (0~4 scales), default is 3 ,
0 : 0FF
1 : 90 cm tolerance : (10cm)
2 : 100 cm tolerance : (10cm)
3 : 110 cm tolerance : (10cm)
4 : >130 cm
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