Speco N8NRN User Manual page 96

FAQ
Q1. Why can't I find the HDD?
a. Please check the power and SATA data cables of the HDD to make sure they are well connected.
b. For some NVRs with the 1U or small 1U case, the power of the adapter may be not enough for operating them. Please use the power adaptor
supplied along with the NVR.
c. Please make sure the HDDs are compatible with the NVR. See Appendix C Compatible Device List for details.
d. The HDD could have gone bad. Change a new one.
Q2. Why are there no images output in some or all of the camera windows?
a. Please make sure the resolutions of the cameras are supported by the NVR.
b. Please make sure the network cables of the IP camera and NVR are both connected properly and the network parameters are set correctly.
c. Please make sure the network and the switch both work normally.
Q3. The screen has no output after booting the NVR normally.
a. Please make sure the screen, HDMI or VGA cables are good and well connected.
b. Please make sure the screen supports the resolution of 1280*1024, 1920*1080 or 3840*2160 (4K*2K). The NVR cannot self-adapt to the
screen of which the resolution is lower than 1280*1024, and then the screen will remind you that the screen resolution is not supported by the
NVR or just have no display. Please change a screen at 1280*1024, 1920*1080 or 3840*2160 resolution before booting the NVR.
Q4. Forget the passwords?
The password for admin can be reset through "Edit Security Question" function.
a.
Click "Edit Security Question" button in the login window and then enter the corresponding answer of the selected question in the popup window,
the password for admin will be reset to 123456 by default. If you forget the answer of the question, this way will be invalid, please contact your
dealer for help.
The passwords of other users can be reset by admin, please refer to 12.1.2 Edit User for details.
b.
Q5. The NVR cannot add up to the maximum number of IP cameras?
Take the 16 CH NVR as an example. Some 16 CH NVR support a maximum of 120Mbps bandwidth input (please take the real device for standard).
Refer to the picture below. The remaining bandwidth should be larger than the bandwidth of the IP camera you want to add, or you would fail to
add the IP camera. You should lower the added cameras' bitrate to release the bandwidth. It is recommended to add cameras by "Quickly Add" for
batch adding.
Q6. The IP camera which connects to the PoE port of the NVR cannot be displayed automatically in the camera list, why?
a. Please check whether the resource of the PoE port is occupied by another IP camera that is added through network.
Take the 16 CH NVR with 8 PoE ports as an example. The resource distribution of the 16 CH IP cameras is shown in the picture below.
When you add IP cameras through network, the IP cameras will occupy the resource from CH1, CH2, CH3, CH4... by the adding sequence; if you
directly connect the IP cameras to the PoE ports of the NVR, the IP cameras will occupy the resource from CH9 to CH16 according to the number of
the PoE port each IP camera is connecting to.
Appendix A FAQ
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NVR User Manual