Dahua nvr4208-8p User Manual

387
Questions
Solutions
NVR can not control PTZ.
 Front panel PTZ error
 PTZ decoder setup, connection or installation is not correct.
 Cable connection is not correct.
 PTZ setup is not correct.
 PTZ decoder and NVR protocol is not compatible.
 PTZ decoder and NVR address is not compatible.
 When there are several decoders, please add 120 Ohm between
the PTZ decoder A/B cables furthest end to delete the
reverberation or impedance matching. Otherwise the PTZ control
is not stable.
 The distance is too far.
I can not log in client-end
or web.
 For Windows 98 or Windows ME user, please update your system
to Windows 2000 sp4. Or you can install client-end software of
lower version. Please note right now, our NVR is not compatible
with Windows VISTA control.
 ActiveX control has been disabled.
 No dx8.1 or higher. Please upgrade display card driver.
 Network connection error.
 Network setup error.
 Password or user name is invalid.
 Client-end is not compatible with NVR program.
There is only mosaic no
video when preview or
playback video file
remotely.
 Network fluency is not good.
 Client-end resources are limit.
 Current user has no right to monitor.
Network connection is
not stable.
 Network is not stable.
 IP address conflict.
 MAC address conflict.
 PC or device network card is not good.
Burn error /USB back
error.
 Burner and NVR are in the same data cable.
 System uses too much CPU resources. Please stop record first
and then begin backup.
 Data amount exceeds backup device capacity. It may result in
burner error.
 Backup device is not compatible.
 Backup device is damaged.
Keyboard can not control
NVR.
 NVR serial port setup is not correct
 Address is not correct
 When there are several switchers, power supply is not enough.
 Transmission distance is too far.

Dahua nvr4208-8p Specifications

General

Operating System	Embedded LINUX
IP Camera Input	8 channel
Two-way Talk	1 channel Input, 1 channel Output, RCA
Interface	1 HDMI, 1 VGA
OSD	Camera title, Time, Video loss, Camera lock, Motion detection, Recording
Record Interval	1 ~ 120 min (default: 60 min), Pre-record: 1 ~ 30 sec, Post-record: 10 ~ 300 sec
Ethernet	1 RJ-45 Port (10/100/1000Mbps)
Max. User Access	128 users
Smart Phone	iPhone, iPad, Android
HDD Bays	1
Operating Temperature	-10°C ~ +55°C (+14°F ~ +131°F)
Main Processor	Dual-core embedded processor
Multi-screen Display	1/4/9
Video Detection and Alarm	Motion Detection, MD Zones: 396 (22 x 18), Video Loss, Camera Blank
Alarm input	4
Relay Output	2
Compression	H.265, H.264
Recording Resolution	Up to 8MP
Record Mode	Manual, Schedule (Regular, Continuous), MD (Video detection: Motion Detection, Camera Blank, Video Loss)
PoE	8 ports (IEEE802.3af/at)
Protocols	HTTP, TCP/IP, IPv4/IPv6, UPnP, RTSP, UDP, SMTP, NTP, DHCP, DNS, IP Filter, PPPoE, DDNS, FTP, Alarm Server, IP Search (Support Dahua IP camera, DVR, NVS, etc.)
USB Interface	2 USB2.0
Power Supply	AC 100~240V, 50/60 Hz
Power Consumption	NVR: <10W (without HDD), PoE: Max 25.5W for single port, 130W total
Operating Humidity	10%~90% RH