User manual LINKSYS EF2H24

[. . . ] Linksys reserves the right to revise or update its products, software, or documentation without obligation to notify any individual or entity. FCC STATEMENT The EtherFast II 10/100 Hub has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used according to the instructions, may cause harmful interference to radio communications. [. . . ] This backwards compatibility is one of 100BaseTX's major advantages over other forms of Fast Ethernet; it allows critical, speed-dependent network segments to be upgraded to 100BaseTX speeds as needed without re-wiring, refitting, and retraining an entire site. Networks can now mix both slow and fast network segments for different users or departments. Publishing, R&D, video, multimedia, or accounting departments can enjoy a 100Mbps pace, while other corporate segments can operate at slower and more affordable 10Mbps speeds. Every port on your 10/100 Hub is capable of running at either 10Mbps or 100Mbps, allowing you to mix and match economical 10BaseT hardware with high performance 100Mbps network cards, hubs, switches, and other equipment. Getting to Know the 10/100 Hub LEDs Power 10 Col LED will be lit whenever the hub is receiving power. When lit, this LED indicates that collisions are being encountered at 10Mbps. When lit, this LED indicates that collisions are being encountered at 100Mbps. If your network experiences an excessively high collision level, verify that your cabling is good, and that there are no cabling coils, cross-overs, or breaks LED will be lit if a given port is operating at 100Mbps. LED will be lit or flickering if a given port is sending or receiving data; will not be lit if the port is not connected to a node. 100 Col 100 Link/Act Module Link/Act LED will be lit if the optional expansion module is installed; flickering when receiving or transmitting data. 4 5 Instant EtherFast II Series 10/100 Hubs Optional Fiber Expansion Module Each 10/100 16 and 24-Port rack mountable hub comes with a fiber optic expansion slot which accepts an optional 100BaseFX fiber optic module for connecting to high-speed fiber cabling. If you purchased an optional fiber optic expansion module, set it up by following the setup instructions included in the Appendix of this guide, (page 11). Uplinking the Hub Each EtherFast II 10/100 Hub has a crossover button (labeled MDI/MDIX) on the front of the hub that allows you to connect with other hubs, switches, or routers. To activate the uplinking capability, make sure that the MDI/MDIX button is not depressed. Insert one end of a straight-through RJ45 cable into port #1 and the other end into the desired device. The 10/100 Hub will automatically determine the optimum speed of the device being attached to it. Note: When the MDI/MDIX button is depressed, the port will function normally. Mounting the Hub Each hub is equipped with mounting hardware that can be used to secure it in a stationary or movable 19" rack. To mount the brackets to the hub, line up the holes on the bracket with the holes on the side of the hub (make sure that the flange on the bracket is to the rear), then fasten the bracket to the hub using the screws provided. Note: Screws required for installing the hub in your rack are not included with the mounting hardware. Powering on the Hub To power on the hub, plug the supplied AC electrical power cord into the back of the hub. The hub will put itself through a series of diagnostic tests -which shouldn't take more than just a few seconds -- then begin scanning the ports for live nodes. Resetting the Hub Connecting Nodes to the 10/100 Hub The 10/100 Hub can be connected to either 10Mbps or 100Mbps PCs, workstations, file servers, print servers, or other hardware. When powered up, each of the hub's 10/100 ports will automatically adjust to the proper speed, as determined by the speed of the hardware or node connected to the port. Connect each of your PCs, workstations, file servers, print servers, or other network nodes to the 10/100 Hub one by one. Each node should be connected to the hub with a straight-through, Category 5 cable with RJ-45 connectors. Ready-to-use network cables of various lengths can be purchased at most computer stores. If you wish to crimp your own cabling for custom sites or lengths, see page 9 for cabling specifications. When connecting a PC to a hub, either the computer or the hub must be powered OFF. If both the computer and the hub are turned on while the connection is completed, the network will act erratically and you must reset the hub (see page 7). To reset the hub, unplug the unit for at least three seconds then plug it back in. [. . . ] For a full explanation of fiber optic cabling distance rules, see the chart on page 12. The following table shows the distance limitation when connecting the Linksys Fiber modules: Distance (meters/ft) 208/672 Cable type Multi-Mode 62. 5/125uM Fiber Optic Cable Multi-Mode 62. 5/125uM Fiber Optic Cable Module in Hub A EF2HSC or EF2HST, SC or ST Type 100BaseFX Fiber Distance Extender EF2HSC or EF2HST SC or ST Type Fiber Distance Extender Module in hub B EF2HSC, EF2HST SC or ST Type Fiber Transceiver Module EF2HSC, EF2HST SC or ST Type Fiber Distance Extender 412/1330 (Half Duplex) Maximum distance 0f 208 meters 12 13 Instant EtherFast II Series 10/100 Hubs Specifications Model Number: Standards: Protocol: Ports: Speed: LEDs: EF2H16 EF2H24 IEEE 802. 3 and IEEE 802. 3u CSMA/CD 16 or 24 RJ-45, depending on model; One 100BaseFX fiber optic expansion slot 10Mbps or 100Mbps Power, 10Col, 100Col, 100Mbps, Link/Activity, Module Link/Activity Category 5 UTP (or better) Customer Support For help with the installation or operation of your EtherFast 10/100 Hub, contact Linksys Customer Support at one of the phone numbers or Internet addresses below. Customer Support Fax E-mail Web FTP Site 800-326-7114 949-261-1288 949-261-8868 support@linksys. com http://www. linksys. com ftp. linksys. com Note: You must have your proof of purchase and a barcode from the product's packaging on hand when calling. Return requests can not be processed without proof of purchase. Cabling: Linksys Warranty Information Environmental Dimensions: Unit Weight: Certifications: Power: Power Consumption: Operating Temperature: Storage Temperature: Operating Humidity: Storage Humidity: 17. 25" x 7" x 1. 75" 6. 6 lbs. FCC Class A, CE Mark, Commercial UL and CSA listed 90-250VAC, 50-60Hz 30 Watts 32°F to 131°F (0°C to 55°C) -40°F to 158°F (-40°C to 70°C) 10% to 85% Non-Condensing 5% to 90% Non-Condensing Linksys guarantees that every 10/100 Hub is free from physical defects in material and workmanship under normal use for five (5) year from the date of purchase. [. . . ]