Http://www.ifarsys.com
Mobile DVR Manual V6.0
36
5.2. Questions on Alarm
1) Q: Invalid alarm triggering?
A: This may be caused by the following causes:
a) Incorrect settings on the Alarm Settings menu; such as failure to enable alarm
for designated alarm input and incorrect output level configuration;
b) Incorrect connection of alarm input or failure to connection alarm input;
c) Incorrect signal level of the triggering source of alarm;
2) Q: Invalid alarm output?
A: This may be caused by the following causes:
a) Incorrect connection by the user;
b) Incorrect menu settings, such as failure to enable alarm output or incorrect
output level configuration;
5.3. Others
1) Q: The power indicator is not on when the device is powered on?
A: This may be caused by the following causes:
a) The voltage falls beyond the range between 8V and 36V;
b) The fuse on the power input wire is burnt out;
c) The ignition signal is not connected;
2) Q: The ERR indicator is on?
A: This may be caused by the following causes:
a) Neither the SD card nor the hard drive is inserted, or the SD card and hard drive
are inserted while the system partitioning is abnormal, causing failure of the
device in recognizing; 2) Disk reading/writing error;
b) Abnormal operation of the SCM;
3) Q: The SD card indicator is not on or flashing?
A: There are three states of the SD card indicator: on, out and flashing, respectively
indicating the following:
Out: The SD card not inserted or failure of the device to recognize the SD card;
On: The SD card exists but not the storage for the current recording
Flashing: The SD card exists and is the storage for the current recording;
4) Q: The hard drive indicator is not on or flashing?
A: There are three states of the hard drive indicator: on, out and flashing, respectively
indicating the following:
Out: The hard drive not inserted or failure of the device to recognize the hard drive;
On: The hard drive exists but not the hard drive for the current recording;
Flashing: The hard drive exists and is the disk of the current recording;
5) Q: Both the SD card indicator and the hard drive indicator are on while not flashing?
A: This may be caused by the following causes:
a) The device considers no current recording tasks according to the menu settings
by the user;
b) Both the SD card and the hard drive are full while the auto overwriting function is
disabled in the menu;
