Recommended cable selection for LAN Monitoring System Integrated Wiring
In the LAN, the monitoring system is widely used, including transmission lines, hubs, network management centers, and other devices. The information network is based on the Integrated Wiring System, it directly affects the performance of the security monitoring system. In this regard, it is directly related to the media used to transmit image signals, including coaxial cables, twisted pair wires, and optical fiber cables.
stackable smart Network Management Switch FS752TPS has 48 10/100 M ports, 24 of which can be used for PoE (FS700TS family) the high performance and scalability of FS700TS comes from a 4 Gbps, dual-ring, and elastic redundant stack architecture, while GS700TS has a 10 Gbps, dual-ring, and elastic stack system, to adapt to the growth of enterprises and provide the highest level of elasticity. The administrator can stack six units (using 288 10/100/M po
data: $person = Array ("name" = "Poe", "Age" = "edu" = "University Graduate"); Indexed array: usually refers to an array of subscript strict 0-based continuous digital subscript-like the JS array from the array hierarchy: a one-dimensional array: is an array of each element value, is a normal value (non-array value) Example: $person = Array ("name" and "=" Poe "," Age "," edu "=" University Graduate "); Tw
Deep belief Network
In order to better in the next discussion class to tell DBN, special open this post. is mainlyIntroduce DBN knowledge and make a logically complete thing. ReferenceHinton of Things:Reading listRBM related[1] about the Scholarwiki of Boltzmann machine[2] The 11th chapter of Haykin Book[3] The 7th chapter of Duda Book[4] Exponential family expansion of RBM[5] RBM modeling capabilities: as a universal approximatorContrastive divergence related[6] Proposed
NVR can access. It must be greater than the sum of the streams of all connected IPC, that is:NVRMaximum access bandwidth≥(IPCMain code stream+Sub-code streams)XNumber of routesThe maximum access bandwidth of NVR also affects the number of access routes of IPC. Taking TL-NVR5108 as an example, its maximum number of access channels is 8, and the maximum access bandwidth is 40 Mbps, if the access to the IPC code stream is large (suppose 6 Mbps ), A maximum of six IPC connections (6 mbpsx6 Note:
AC function Manage wireless AP First step, connect AP
Example Model tl-er6520g
Different types of AP power supply methods may vary, including DC power supply and network cable power (Poe power supply) two kinds. As follows
[1] DC power supply
Use a self-contained power adapter to power the AP, requiring the AP to be placed at a power outlet, with the advantage of cost savings. Connect according to the topology map.
[2] Cable power supply
The use
tp450g Router set up AC function Management AP Case Analysis
For maximum cost savings and convenience, we integrate the AC function (centralized control wireless AP) into the router, so that the perfect coverage can be achieved with the router +ap. The following figure.
This article describes the use of tl-wvr450g and wireless AP.
A training organization ABC needs to decorate the wireless network that can connect 100 people, set up the staff wireless and student wireless network,
reach more
than
Taiwan .
Network topology
The following is an example of a
hotel that describes the topology of wireless coverage:
The scheme uses the Poe switch to supply and transmit data to the wireless AP through the network cable, which can avoid additional wiring, and uses AC (Wireless Controller) to centrally manage all AP, automatic discovery, one key configura
relationship is divided into: Associative array: usually refers to the subscript as a string, and the string can generally express the meaning of the data of the array : $person = Array ("name" => "Poe", "Age" =>, "edu" => "University Graduation"); Index array: usually refers to an array of subscript strict starting from 0 consecutive digital subscript--similar to the JS array of from the array level: One-dimens
causes the access point to be difficult to connect to the power supply problem. In this case, there are generally two solutions, one is to use the power extension cord, and the other is the way to power on the Ethernet (PoE). We recommend that you use the second option, which provides power to the access point via an unused Ethernet port. For network devices, connecting the end of the cable to a dedicated Poe
network, using the HP ProCurve 2600 series switch as the edge switch for the network, with ProCurve Wireless AP 420 WW serves as the access point for wireless users.
The HP ProCurve Switch 5300XL series switch, which is applied to the core of the network, uses a compact 4-or 8-slot modular design that supports the Rip/rip II/OSPF routing protocol, as well as the built-in "virus-blocking" of HP networks (Virus Throttling) technology to minimize the risk of worm viruses.
Wireless access Point 4
Catalyst NN XX [-c] [-m] [-a/-en]
NN is the serial number of the switchXX is the number of ports for a fixed-configured switch, which is the number of slots for a modular switchC logo indicates a fiber-optic interface withM-representation of modularityA and-en respectively refer to the switch software as either a standard board or an Enterprise edition.
The WS-C2960-48PST-L structure is as follows:
Ws-c 2960-48 Pst-l
Ws-c that this type of product
Ethernet, reducing the cost of connecting to remote buildings and the cost of time and leased line installation 。
Wireless Small and Medium Enterprises Solution
For small and medium networks with typical users ranging from 300 to 1000, HP recommends using HP ProCurve 5300xl series switches as the core Switches of the network and HP ProCurve 2600 series switches as the edge Switches of the network, use ProCurve Wireless AP 420 WW as the access point for Wireless users 。
The HP ProCurve Switch 53
routers, gateways, and Ethernet power supply (PoE ), simplify network deployment and management and reduce capital expenditures. Its functions include: integrated StatefulPacketInspection firewall, Network Address Translation (NAT), DHCP server, and WAN connection support to flexibly reduce installation costs.
Second-generation wireless LAN: Powerful centralized and intelligent functions
WS2000 provides powerful functionality and economic benefits fo
reliability, but also improve IT management efficiency and total cost of ownership.
Functions worthy of 802.11ac
These 802.11ac AP functions are not necessarily essential. They include 802.3af Ethernet power supply (PoE) instead of 802.3at or proprietary PoE operations. They support security features, such as intrusion detection or defense, fraud detection and spectrum analysis, and additional functions, s
system and integrates fault diagnosis tools in WEB browsers, TELNET, and other types of PCs.
Http://anheng.com.cn/products/20/130.html
Gigabit link test
Gigabit link test:Supports full-duplex 10/100/1000 M Ethernet testing, and test interfaces can meet future needs.
Test Ethernet power supply (PoE ):Deploying PoE? Test the DC voltage on each wire to determine whether the network works proper
/WPA2 security functions, this provides users with the latest wireless security technology to ensure network protection. In addition, the product provides MAC address filtering, SSID broadcasting disabled, Advanced Encryption Standard (AES) data encryption, and multiple SSID/VLAN functions. DAP-2590 wireless access points can be managed through Web interfaces, Telnet, SNMP, and other protocols or methods to meet the needs of network administrators at different levels.
(D-Link daps-2590)
Differe
location. Therefore, when deploying wireless access points, we should try to avoid deploying devices near the metal structure.
2. Select the Ethernet power supply mode as far as possible for the access device
To ensure the widest coverage of wireless networks, many companies prefer to deploy wireless access points on top of the ceiling or similar locations. This makes it difficult for the access point to connect to the power supply. There are two solutions to this problem: one is to use a power
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