Shield Technology has determined that some mobile networks such as AT&T have built some proxies or firewalls for mobile network traffic using TCP port 80. If the traffic does not comply the HTTP specification, the proxy or firewall will drop or cancel link to port 80. This kind of measure is design for better QoS or security.
Shield DVR only implements the minimal set of HTTP protocol, and the link between DVR and mobile device will be dropped by AT&T’s firewall or proxy.
Shield has implemented more complete HTTP protocol set and may not have problem on AT&T mobile network.
To avoid the link drop problem on AT&T or similar network, please use a less common port. Please do not use port 8088. This port is also used for HTTP proxy.
Recommended ports are:
8004, 8008, 8016, 8024, 8032 etc.
1. 1 Mbps dvr upload, 2. supports windows xp/vista/windows 7 and mac os(RTSP)
Open port 554 and 8000 and forward them to dvr and install quicktime software in remote pc.
Only if customer provides protocol and ptz for testing.
Yes, but you will also have to configure antivirus software, firewall and router to allow connection through that port.
At least 1Mbps for dvr upload and 6Mbps for remote download
Verify whether is one to one or one to four, if one to one, the remote id should sets to “0”, if one to four, th remote id is “1”.
We do support the RAID mode and Disk Array system for E-SATA interface; but please there could be compatibility issues.
No, only Internet Explorer with Active X is fully supported. The DVR program is recommended instead of IE.
It caused of the 3G signal strength not strong enough; when the signal strength is weak than the three bars of reception, it will become hard to connect.
This function will start operating 8 hours after it is set up.
We only support HUAWEI USB Modem so far because only they share the driver on the market. We have tested for E122, E153, E156G, E169U, E170, and E220, those models are working well with our DVR.
Please connect the 3G USB Modem with DVR USB 1.1 port. In the 3G Internet Setting, the “Dial-up Number” and “APN” number has to ask for the ISP (Telecom) company, and the Pin number is the SIM card code. If users slot the 3G USB Modem before DVR start up, it will dial up automatically when DVR start up; if users slot the 3G USB Modem after DVR start up, it has to connect to internet manually, users could dial up after click “OK” button in Network Setting of Main Menu.
We do not support the USB HDD because the extension HDD box has different control chipset, some of it is working well, but some of it is not; therefore, we do not announce that the USB HDD will be supported. For this reason, we do not suggest user to use External USB HDD in our DVR, and not only that the HDD has the compatible issue potential. Otherwise, some of External USB HDD speed is too slow to might make the backup video lost. Too many uncertainty issues cause we do not know that how to support it; in PC base, it will be easy to support; but in standalone, all the driver has to save in the memory before, so that is the reason we are really hard to do it so far.
DVD support list would depend on the DVD-Writer installed on the unit. CD can not be used but is not recommended because of capacity limitations on CD-R media.
“1. When users use remote access to see the live view: images are loaded from cache memory in CIF format. Frame rate of the loaded file depends on the setting in “”HTTP Setup”” of local DVR and the requirement for network is around 1Mbps for DVR upload.
2. When users use remote access to see the recording video in playback: images are loaded from HDD of local DVR, so the transmission size depends on the recording resolution and frame rate. For example, if users set 720×480 with 30 FPS or 720×576 with 25 FPS to record, the result of recording size is huge and LAN is required to connect for playback. In general, the requirement for network is around 10 Mbps for DVR upload. When downloading files from remote access under unqualified Network Speed, a momentary loss of recorded audio signal may occur in order to maintain the images. Consequently, the downloaded files may contain without Audio signal.
So if users want to view the playback file with smooth quality, could you please suggest your clients backing up the file to local PC and then playback it again when the Network Speed is unqualified.”
CPU Intel Pentium 3.0Ghz or above
OS Microsoft Windows 7、Windows Vista、Windows XP SP2 above
(Compatible with 32/64 bit operation system)
RAM 4GB or above (Depends on the operating system)
VGA Card Needed to support DirectX9.0 (Above) *Note 1
Others DirectX 9.0 above
Known VGA card that support DirectX9.0 currently:
NVIDIA: Geforce 500 series, Geforce 600 series, etc.
ATI: Radeon HD6000 series, Radeon HD7000 series, etc