User manual ENCORE ENH905-NWY

[. . . ] This equipment generates, uses and can radiate radio frequency energy and, if no installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. [. . . ] Each port could be used to connect to another switch or hub with no crossover RJ-45 cable. Store-and-forward switching mode promises the low latency plus eliminates all the network errors, including runt and CRC error packets. To work under full-duplex mode, transmission and reception of the frames can occur simultaneously without causing collisions as well as double the network bandwidth. The switch is plug-n-play without any software to configure and also fully compliant with all kinds of network protocols. Moreover, the rich diagnostic LEDs on the front-panel can provide the operating status of individual port and whole system. 3 For network connection: The switch can use the following types of cabling: 10BASE-T Category 3, 4 or 5 UTP/STP 100BASE-TX Category 5 UTP/STP Category 5 cable is preferred to use with this product in structured wiring environments. This will ensure correct operation of all ports at 10Mbps or 100Mbps. 2. 2 Key Features The switch provides the following key features: Complies with 10BASE-T specifications of the IEEE802. 3 standard Complies with 100BASE-TX specifications of the IEEE802. 3u standard All RJ-45 ports for 100BASE-TX and 10BASE-T connectivity Supports NWay protocol for speed (10/100Mbps) and duplex mode (Half/Full) auto-detection Supports MDI/MDI-X auto crossover Supports full and half duplex operation on all ports Supports back-pressure (half duplex) and flow control (IEEE 802. 3x) Wire-speed packet filtering and forwarding rate Store-and-forward architecture filters fragment & CRC error packets Supports 2K MAC address entries in whole system 128KB buffer memory Supports extensive LED indicators for network diagnostics External power adapter FCC Class A, CE 4 2. 3 The Front Panel The front panel of the switch is shown below. The auto-negotiation feature of the switch allows each port of the device running at one of the following four operation modes: Speed 100 Mbps 10 Mbps Duplex Mode Half-duplex Full-duplex Half-duplex Full-duplex Each 10/100Mbps port supports auto MDI / MDI-X capability that is the port could connect either the PC or hub without any cable adjustment. 5 2. 3. 1 LEDs 2. 3. 1. 1 Power LED This indicator lights green when the switch is receiving power; otherwise, it is off. If the LED lights green, the connection speed is 100Mbps, off for 10Mbps. Steady green (link state) indicates that the port has good linkage to its associated devices. Flashing green indicates that the port is receiving or transmitting data between its associated devices. If the port is connected but the Link/Activity LED is dark, check the following items: 1. The cable is firmly seated in its connectors in the switch and in the associated device. From the 100M and Link/Activity LED, we could judge the connection speed as following: 100M LED Off Off Green Link/Activity LED Off Green Green Status No Connection Connect as 10Mbps Connect as 100Mbps 2. 3. 1. 3 6 2. 3. 1. 4 FDX/COL LED A collision occurs when two stations within a collision domain attempt to transmit data at the same time. Intermittent flashing amber of the LED is normal; the contending adapters resolve each collision by means of a wait-then-retransmit algorithm. If the FDX/COL lights amber which means the port is under full-duplex operation or dark for half-duplex mode. The following table is a summary of LEDs. LED Power Status Steady Green Off 100M Steady Green Off Link/Act Steady Green Blinking Green Off FDX/COL Steady Amber Blinking Amber Off Operation Power is on Power is off Connected as 100Mbps Connected as 10Mbps The port is connected The port is transmitting/receiving data. No connection Full-duplex mode Collision Half-duplex mode 7 2. 4 The Rear Panel The rear panel of the switch is shown as below 2. 4. 1 Power Connecting Plug the circle end of the power adapter firmly into the rear panel of the switch, and the other end into an electric service outlet then the system is ready. 8 3. Installing And Using NWay Switch The switch does not require software configuration. Users can immediately use any of the features of this product simply by attaching the cables and turning the power on. 3. 1 Installing The NWay Switch 3. 1. 1 Desktop Installation To locate the switch on the desktop, place the switch on a clean, flat desk or table close to a power outlet. Plug in all network connections and the power cord, then the system is ready. When deciding where to put the switch then you must ensure: It is accessible and cables can be connected easily Cabling is away from: Sources of electrical noise such as radios, transmitters and broadband amplifiers Power lines and fluorescent lighting fixtures. [. . . ] If not found, this packet will be forwarded to all the other ports except the port where this packet comes in. If found, and the destination address is located at different port from this packet comes in, the packet will be forwarded to the port where this destination address is located according to the information of address table. But, if the destination address is located at the same port as this packet comes in then this packet will be filtered. 4. 3 Store and Forward Store-and-forward is one kind of packet-forwarding methodology. [. . . ]