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User’s Manual
99
15) Q: Alarm does not work.
A: Possible reasons:
Incorrect alarm settings.
Incorrect alarm wiring.
Incorrect alarm input signal.
An alarm device is connected to 2 loops at the same time.
16) Q: Messy channel display.
A: Possible reasons:：
Incorrect selection of camera type. Auto switch is recommended.
The camera is damaged.
17) Q: Record storage period is not enough.
A: Possible reasons:
Low camera quality, dirty lens, camera installed against the light, or iris not properly adjusted
caused large big rate.
HDD capacity is not enough.
The HDD is damaged.
18) Q: No 3G/4G dial-up. No dial-up IP
A: Possible reasons:
Check if the SIM card is normal.
Check if the SIM card is not in service.
Check if the 3G/4G antenna is connected as intended.
Check if the 3G/4G signals are strong enough.
Try out with another SIM card.
19) Q: 3G/4G platform is not online.
A: Possible reasons:
Check if 3G/4G dial-up is normal.
Check if local active registration is correctly set up.
Check if the sever terminal is correctly set up.
20) Q: No GPS data.
A: Possible reasons:
Check if the GPS antenna is connected as intended.
Make sure the GPS antenna is in a place where signals are not blocked.
21) Q: GPS drifting and produces speed for no reason.
A: Possible reasons:
Weak GPS signal.
22) Q: Video record is silent.
A: Possible reasons:
Check if a normal analog camera is connected. Only HDCVI camera with audio input supports
audio.
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