PRODUCT DESCRIPTION
The DCS-2102/2121 is a versatile and unique surveillance solution for your small offce or home.  Unlike a standard webcam, the DCS-2102/2121 is a complete system with a built-in CPU and web server that transmits high quality video images for security and surveillance.  The DCS-2102/2121 can be accessed remotely and controlled from any PC or notebook over the local network or through the Internet via a web browser.  The simple installation and intuitive web-based interface offer easy integration with your Ethernet/Fast Ethernet or 802.11g wireless network.  The DCS-2102/2121 also comes with remote monitoring and motion detection features for a complete and cost-effective home security solution.

WIRELESS G CONNECTIVITY
The DCS-2121 offers both 802.11g wireless and Ethernet/Fast Ethernet connectivity, making the DCS-2121 easy to integrate into your existing network environment.  The DCS-2121 works with a 10Mbps Ethernet based network or 100Mbps Fast Ethernet based network for traditional wired environments and works with 802.11g routers or access points for added fexibility.  The Site Survey feature also allows you to view and connect to nearby wireless networks.

SNAPSHOTS, RECORDING & STORAGE
Using the Snapshot and recording features, you can save snapshots and record video and audio directly from the web browser to a local hard drive without installing any software, making it convenient to instantly capture any moment from a remote location.  The DCS-2102/2121 allows you to record directly to a local network area storage device without the use of a dedicated PC for storing recorded video.

PRODUCT DESCRIPTION
The DCS-2102/2121 is a versatile and unique surveillance solution for your small offce or home.  Unlike a standard webcam, the DCS-2102/2121 is a complete system with a built-in CPU and web server that transmits high quality video images for security and surveillance.  The DCS-2102/2121 can be accessed remotely and controlled from any PC or notebook over the local network or through the Internet via a web browser.  The simple installation and intuitive web-based interface offer easy integration with your Ethernet/Fast Ethernet or 802.11g wireless network.  The DCS-2102/2121 also comes with remote monitoring and motion detection features for a complete and cost-effective home security solution.

WIRELESS G CONNECTIVITY
The DCS-2121 offers both 802.11g wireless and Ethernet/Fast Ethernet connectivity, making the DCS-2121 easy to integrate into your existing network environment.  The DCS-2121 works with a 10Mbps Ethernet based network or 100Mbps Fast Ethernet based network for traditional wired environments and works with 802.11g routers or access points for added fexibility.  The Site Survey feature also allows you to view and connect to nearby wireless networks.

SNAPSHOTS, RECORDING & STORAGE
Using the Snapshot and recording features, you can save snapshots and record video and audio directly from the web browser to a local hard drive without installing any software, making it convenient to instantly capture any moment from a remote location.  The DCS-2102/2121 allows you to record directly to a local network area storage device without the use of a dedicated PC for storing recorded video.

PRODUCT DESCRIPTION
The DCS-910/920 is a versatile and unique surveillance solution for your small offce or home.  Unlike a standard webcam, the DCS-910/920 is a complete system with a built-in CPU and web server that transmits high quality video images for security and surveillance.  The DCS-910/920 can be accessed remotely and controlled from any PC or notebook over the local network or through the Internet via a web browser.  The simple installation and intuitive web-based interface offer easy integration with your Ethernet/Fast Ethernet or 802.11g wireless network.  The DCS-910/920 also comes with remote monitoring and motion detection features for a complete and cost-effective home security solution.

WIRELESS G CONNECTIVITY
The DCS-920 offers both 802.11g wireless and Ethernet/Fast Ethernet connectivity, making the DCS-920 easy to integrate into your existing network environment.  The DCS-920 works with a 10Mbps Ethernet based network or a 100Mbps Fast Ethernet based network for traditional wired environments and works with 802.11g routers or access points for added fexibility.  The Site Survey feature also allows you to view and connect to nearby wireless networks.

5 Auto-sensing 10/100Mbps Ports
The switch comes with 5 10/100Mbps ports, allowing a small workgroup to flexibly connect to Ethernet ad Fast Ethernet and integrate. These intelligent ports detect the network speed and auto-negotiate between 100BASE-TX and 10BASE-T, as well as between full- and half-duplex.

Flow Control for Secure Transmission
 All ports support 802.3x flow control. This function minimizes dropped packets by sending out collision signals when the port's receiving buffer is full.  Flow control is available in the full-duplex mode.

Auto-negotiation of MDI/MDIX Cross Over
All ports support auto-negotiation of MDI/MDIX cross over. This eliminates the need for cross over cables or uplink ports. Any port can simply plug to a server, a hub or a switch, using the usual straight-through twisted-pair cable.

SOHO Plug-and-Play
With 5 plug-and-play ports, the switch is a perfect choice for the small workgroup to upgrade performance in a client/server environment.  The ports can be connected to servers in full-duplex, or hubs in half-duplex.

Desktop Power
With low-cost connection per-port, the switch can also be set up for direct connection from the PCs. This relieves data bottleneck by giving each workstation a dedicated bandwidth on the network.

The DES-3000 series switches are high-performance managed Layer 2 switches that provide an ideal solution for workgroups and departments. These switches present a great entry-level managed solution for the SMB just starting out or the already established business looking to bring a managed solution to the desktops. These switches provide fiber uplinks for connection of small groups of users over a larger distance such as on a campus and between indoor departments or school classrooms.

High-Performance L2 Switching. With powerful switch fabric and abundant processing memory, the DES-3000 series provides wire-speed high performance for departments and workgroups. These switches include support for traffic segmentation that isolates ports to protect privacy. They allow you to migrate end users to an 802.1x environment when existing workstations support the 802.1x authentication protocol.

Investment Protection. By supporting industry approved specifications, the DES-3000 series leverages your existing investment in a multi-vendor environment, while maximizing compatibility of business with critical features like Spanning Tree (802.1D and 802.1w), QoS (802.1p), port mirroring and network management. These switches provide robust support for standard-based management protocols such SNMP, RMON, BOOTP , Telnet, web and port mirroring, enabling you to integrate them into many third-party network management packages.

Advanced Enterprise Features. The DES-3000 series switches bring advanced enterprise functions to a more affordable level while supporting advanced features: 802.1p and port-based QoS/CoS, rich security and management features such as port-based/MAC-based 802.1x authentication and bandwidth control. These switches also support many of the features you would expect to see on a larger managed solution such as: IGMP snooping, 802.3ad Link Aggregation, 255 VLANs, traffic segmentation, traffic monitoring and SYSLOG.

Cost-Effective Virtual Stack. With D-Link Single IP Management client support, the DES-3000 series can be attached to a higher-level core switch such as a DES-6500 chassis or a D-Link xStack to form a virtual stack. The DES-3000 series can form a workgroup or departmental stack providing 10/100Mbps speed with Gigabit uplinks to the core switch. The DES-3000 series simplifies and speeds up your management tasks, as multiple switches can be configured, monitored and maintained from a management station through one unique IP address.**

** SIM Client is used for stacking with DES-3500, DES-3800 series switches, xStack or DES-6500 chassis embedded with SIM (Single IP Management) Commander v.1.0 or above. 

The DES-3500 series is a member of the D-Link xStack family of next generation switches that deliver performance, flexible expansion, robust security, multi-layer Quality of Service  (QoS), Power Over Ethernet and redundant power option. Supporting D-Link's Single IP Management, these switches comprise the workgroup access-layer virtual stack for seamless integration with the L3 core Gigabit switches to form part of a multi-level network structured with high-speed backbone and centralized servers.

Cost-Effective Virtual Stack. The DES-3500 series forms an Ethernet workgroup stack with flexible Gigabit uplinks. Traffic running among units in this virtual stack is through the full-duplex Gigabit interfaces and your usual network wires, doing away with the costly and cumbersome stacking cables. Without any stacking cable, cable distance barrier and physical stacking limitations, your stack can comprise units that are located anywhere on the network, minimizing the impact of any single point of failure.

Single IP Management. The DES-3500 series simplifies and speeds up your management tasks, as multiple switches can be configured, monitored and maintained from any workstation running a web browser through one unique IP address. The stack is managed as a single object, with all units identified by a single IP address. You can see a Tree View of the members of the stack and a network topology showing the locations of the units and their link information. This simple yet powerful web-based management eliminates the need for you to install expensive SNMP network management software. You can add units to up to 32 switches per stack not limited to any specific models. With embedded Single IP Management, you can expand your Ethernet stack to include L3 core Gigabit and chassis-based switches to accommodate your network growth.

Comprehensive Security. The DES-3500 series provides a complete set of security features for connectivity and access control. This set includes Access Control Lists (ACLs) based on MAC address, switch port, IP address, and/or TCP/UDP port numbers, 802.1x user authentication and MAC address control. The DES-3500 also provides central management for administration access via TACACS+ and RADIUS. T ogether with network application control, this security ensures that not only proper user access is served, but malicious traffic is also prevented from being spread across the network.

Enhanced Network Performance & Availability.  The DES-3500 series switches provide extensive VLAN support including GARP/GVRP, 802.1Q and asymmetric VLAN to enhance network security and performance. Bandwidth control allows you to set traffic limit for each port to control the traffic volume from the edge of the network. 802.1w Rapid Spanning Tree with network recovery of less than 15 seconds and redundant power option increase the reliability and availability of your Virtual Stack. The DES-3500 series implements a robust set of multi-layer (L2, L3, L4) QoS/CoS features to ensure that critical network services like VoIP, ERP, Intranet and video conference are served with proper priority. Priority queues for 802.1p/TOS/DiffServ are supported, with classification and marking based on MAC SA/DA, IP SA/DA, and/or TCP/UDP port numbers.

High-performance Gigabit Speed
Capable of running at full-duplex Gigabit speed, this card gives your PC 2000Mbps data transmission on your existing Cat. 5 twisted-pair network cable. As an inexpensive alternative solution to fiber-optic, the card allows you to instantly upgrade to Gigabit without requiring you to install new, expensive fiber cables. The card supports 10/100/1000Mbps network speed auto-sensing and full/half duplex auto-negotiation.

VLAN to Improve Performance and Security
The card provides on-board screening of VLANs Tagged Ethernet frames, allowing your PC to be configured with a VLAN-supported switch. Your PC can be part of a VLAN network, where domains are segmented up to enhance performance and security.

Wake-On-LAN for Power Management
Wake-On-LAN (WOL) is an Advanced Configuration Power Interface (ACPI) function allowing a powered OFF computer to be powered ON from a remote station.  This function allows the administrator to send wake-up signals to a computer. The WOL function provides a great utility for power management of the PC and allows users to initiate action at irregular times and from distant locations.

Flow Control to Minimize Packet Loss
The card's embedded flow control and independent FIFO provide a means to protect against possible data loss during transmission on the network. When connected to a Gigabit switch supporting flow control, the card receives signals from the switch regarding buffer overrun during peak usage periods. The card then delays transmission until the switch is ready again to accept new data.

Small Form Factor, Lower Power Requirement
Using a single chip solution, this card is very small in size and consumes very little power of your computer system.