Chinese Professional 4wire Villa Video Door Phone Video Domofony with Wide Angle Camera Waterproof Raincover and Motion Detection Fucntion
Chinese Professional 4wire Villa Video Door Phone Video Domofony with Wide Angle Camera Waterproof Raincover and Motion Detection Fucntion
We always work as a tangible team to ensure that we can provide you with the best quality and the best price for Chinese Professional 4wire Villa Video Door Phone Video Domofony with Wide Angle Camera Waterproof Raincover and Motion Detection Fucntion, Our experienced technical workforce will probably be wholeheartedly at your support. We sincerely welcome you to go to our internet site and business and deliver us your inquiry.
We always work as a tangible team to ensure that we can provide you with the best quality and the best price for Video Door Phone and Video Door Bell, Our merchandise are mainly exported to Europe, Africa, America, the Middle East and Southeast Asia and other countries and regions. We’ve enjoyed a great reputation among our customers for quality solutions and good services.We would make friends with businessmen from at home and abroad, following the purpose of “Quality First, Reputation First, the Best Services.”
Product Description
Product Fetures
Specification
| Panel Material | Alum+PMMA |
| Color | Silver |
| Display element | 1/3″CMOS |
| Lens | 120 degree wide-angle |
| Light | White Light |
| Screen | 3.5-inch LCD |
| Button Type | Mechanical Pushbutton |
| Capacity of Cards | ≤80,00 pcs |
| Speaker | 8Ω, 1.5W/2.0W |
| Microphone | -56dB |
| Power support | 18~20V DC |
| Door Button | Support |
| Standby Power Consumption | <30mA |
| Max Power Consumption | <300mA |
| Working Temperature | -30°C ~ +50°C |
| Storage Temperature | -30°C ~ +60°C |
| Working Humidity | 10~90% RH |
| Interface | Power In; Door release button; RJ45; Relay out |
| Installation | Embedded/Surface mounting |
| Dimension (mm) | 115*334*50 |
| Working Voltage | DC18V±10% |
| Working Current | ≤500mA |
| IC-card | Support |
| Infrared diode | Installed |
| Video- out | 1 Vp-p 75 ohm |
Network bus topology
Network topology commonly used termination of the bus structure, does not support a round or star-shaped network. All node is serial connected by one bus is a good choice, in the picture above, the general network topology of A8-05B system is shown. N nodes are connected in a multipoint network. For higher speeds and longer lines, the termination resistances are necessary on both ends of the line to eliminate reflections. Use 100 Ω resistors on both ends (need only if wire length > 2km). The network must be designed as one line with multiple drops, not as a star. Although total cable length maybe shorter in a star configuration, adequate termination is not possible anymore and signal quality may degrade significantly. In Diagram 1 which showed next, b, d, f is right connection and a, c, e is wrong connection.
Diagram 1
When using shield network wire (STP), Should maintain the continuity of the shielding layer of smooth, and connect Earth at one point, as shown in diagram
Wire required
System used CAT-5E UTP and STP cable.
How to choose qualified CAT-5E cable?
The resistance of each wire must ≤35Ω when length is about305M (FCL length).
Door-station to Power Supply used RVV4*0.5, to lock used RVV2*0.5.
Warning:
Door-station’s picture will not full display in Visual Room-station’s screen when Room-station quite different from the video power supply, at appropriate locations in the building bus to increase a power supply can solve this problem. General video power supply from the visual Room-station of the maximum distance could not exceed 30 meters.
Diagram 2
Please use Scotchlok to connect 2 wires
Scotchlok
UTP&UTP
UTP&Device’s off-line
Off-line&Off-line
Only need a jaw vice
Effect picture
Why not use RJ-45 for connection?
Because RJ-45 standard is made up for in-door using only, it is poor damp-proof and very easily be dirtied or oxidized. If a RJ-45 Head is broken, there are professionals hold professional tools required to repair the fault, this will lead to higher maintenance costs.
Scotchlok is exactly what we need. Over 45 years ago, 3M introduced the industry’s original insulation displacement connector – the Scotchlok Connector UR. Today, with increased demand for high-speed and high-bandwidth networks, the complete series of 3M connectors and tools has evolved again. Please visit www.3M.com for more Scotchlok’s information.
Detail
We always work as a tangible team to ensure that we can provide you with the best quality and the best price for Chinese Professional 4wire Villa Video Door Phone Video Domofony with Wide Angle Camera Waterproof Raincover and Motion Detection Fucntion, Our experienced technical workforce will probably be wholeheartedly at your support. We sincerely welcome you to go to our internet site and business and deliver us your inquiry.
Chinese Professional Video Door Phone and Video Door Bell, Our merchandise are mainly exported to Europe, Africa, America, the Middle East and Southeast Asia and other countries and regions. We’ve enjoyed a great reputation among our customers for quality solutions and good services.We would make friends with businessmen from at home and abroad, following the purpose of “Quality First, Reputation First, the Best Services.”
