COP-USA DVRC264-4CH_USB - Manual (Page 18)

Digital Video Recorder User Manual
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Fig 2.10 Alarm Output Connection
Notice: The power in series must be 277VAC/10A or 30VDC/10A or below
2.4 Remote Controller
It uses two AAA size batteries and works after loading batteries as below
STEP1 Open the battery cover of the Remote Controller
STEP2 Place batteries. Please take care the poles (+ and -)
STEP3 Replace the battery cover
Notice: Frequently defect checking as following
1. Check batteries poles
2. Check the remaining charge in the batteries
3. Check IR controller sensor is mask