AOpen 10/100Mbps Rack-Mountable Switch AOW-216(16-port) AOW-224(24-port) User’ s Guide OpenLink™ To AOpen
AOpen OpenRack Series The OpenRack Series by AOpen are easy-to-install, costeffective, and high performance 16/24-port 10/100Mbps RackMountable Hubs/Switches, which are designed for workgroup, department, or backbone computing environments at small to medium size business.
FCC Warning This equipment has been tested and found to comply with the regulations for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with this user’ s guide, may cause harmful interference to radio communications.
T ABLE OF C ONTENTS PACKING CONTENTS...........................................................III ABOUT THIS GUIDE ..............................................................1 OVERVIEW .............................................................................1 INTRODUCTION .....................................................................2 FAST ETHERNET TECHNOLOGY .................................................2 SWITCHING TECHNOLOGY ........................................................
A. Using straight cable .....................................................15 B. Using crossover cable..................................................15 PORT SPEED & DUPLEX MODE ...............................................16 TECHNICAL SPECIFICATION..............................................19 APPENDIX A: RJ-45 PIN SPECIFICATION ..........................
P ACKING CONTENTS Open the shipping cartons and carefully unpacks its contents. The carton should contain the following items: • One 19” AOpen 16/24-port 10/100M Rack-Mountable Switch • One AC power cord • Four rubber feet to be used for shock cushioning • Screws and two mounting brackets • User’ s Guide If any item is found missing or damaged, please contact your local reseller for replacement.
A BOUT T HIS G UIDE This manual provides all the information you need of how to install and operate AOpen Rack-Mountable 10/100M Fast Ethernet Switch (AOW-216/AOW-224) Overview Chapter 1, Introduction. Describes the Switch and its features. Chapter 2, Hardware Description Explicates the front panel, rear panel and LED indicators of the Switch. Chapter 3, Connecting the Switch. Explains how you can connect the Switch to your Ethernet network. Chapter 4, Technical Specifications.
I NTRODUCTION This chapter describes the features of the AOpen RackMountable switch and some background information about switching technology. Fast Ethernet Technology A number of high-speed LAN technologies have been proposed to provide greater bandwidth and improve client/server response times. Among them, 100BASE-T (Fast Ethernet) provides a non-disruptive, smooth evolution from the current 10BASE-T technology. 100Mbps Fast Ethernet is a new standard specified by the IEEE 802.3 LAN committee.
segments, it automatically forwards traffic that needs to go from one segment to another. By doing this the total network capacity is multiplied, while still maintaining the same network cabling and adapter cards. For Fast Ethernet networks, a switch is an effective way of eliminating problems of chaining hubs beyond the “two-repeater limit.
between the transmit and receive nodes to guarantee against all possible packet loss. • NWay Auto-negotiation for any port. • Flow control for any port. This minimizes dropped packets by sending out collision signals when the receiving buffer is full. Note that flow control is only available in half-duplex mode. • Data forwarding rate per port is at wire-speed for 100Mbps speed. • Data forwarding rate per port is at wire-speed for 10Mbps speed.
product specification for the acceptable temperature and humidity operating ranges. • Install the stack in a site free from strong electromagnetic field generators (such as motors), vibration, dust, and direct exposure to sunlight. • Leave at least 10cm of space at the front and rear of the switch for ventilation. • Install the switch on a sturdy, level surface that can support its weight, or in an EIA standard-size equipment rack.
Then, use screws provided with the equipment rack to mount each switch in the rack.
100Base-FX Module Installation To install any of the modules: (Includes SC or ST type connectors) 1. Locate the module slot in the switch’ s rear panel. 2. Using a screwdriver, undo the two screws and remove the dust cover on the module slot. 3. Holding the module component-side up and connector-side in, gently slide the module along the guides and seat it in the internal connector. 4. Using a screwdriver, replace the two screws and tighten until snug.
is really the same port. Do not use both Port 9 and the 100BASE-FX port at the same time. For AOW-224 (24-port switch), port 5 and the 100BASE-FX port is really the same port. Do not use both Port 5 and the 100BASE-FX port at the same time.
H ARDWARE D ESCRIPTION This section identifies all the major external components of the switch. Both the front and rear panels are shown, followed by a description of each panel feature. The indicator panel is described in detail in the next chapter. Front Panel The figure below shows the front panels of the switches.
a crossover cable, or connect using the Uplink port (described below). Uplink Ports The Uplink port is a MDI port. It means you can connect the switch to another device through Uplink ports by instead of using an ordinary straight-through cable than a crossover cable. In 16-port model, port 16 and the Uplink is really the same port, except that their pins cross differently. Do not use both Port 16 and the Uplink port at the same time.
16/24-port 10/100M NWay Fast Ethernet Switch Module Slots: Used to install module options for 100BASE-FX connection. AC Power Connector: For the power cord. LED Indicators Power Indicator (PWR) This indicator lights green when the hub is receiving power, otherwise, it is off. Full/Half Duplex,10/100M Collision (10/100M FDX(green),10/100M COL(amber)) This LED indicator light green when a respective port is in full duplex (FDX) mode. Otherwise, it is OFF for half duplex (HDX) operations.
data on the 10Mbps network. 100BASE-FX Module Indicator(green) The FX Link/Rx, indicate a good link to a module installed.
C ONNECTING THE S WITCH This chapter describes how to connect the switch to your Fast Ethernet network. PC to Switch A PC can be connected to the Switch via a two-pair Category 3, 4, 5 UTP/STP straight cable. The PC (equipped with a RJ-45 10/100Mbps phone jack) should be connected to any of the 16 ports (1x - 16x) for the 16-port model, 24 ports (1x - 24x) for the 24-port model or 8 ports (1x - 32x) for the 32-port model. The LED indicators for PC connection dependent on the LAN card capabilities.
connection is accomplished from the hub uplink (MDI-II) port to any of the Switch (MDI-X) ports. A. 10BASE-T Hub For a 10BASE-T hub, the Switch LED indicators should light up as the following: “10/100M FDX, 10/100M COL” LED indicator is OFF. “100M LINK/ACT, 10LINK/ACT” LED indicator is light amber. B. 100BASE-TX Hub For a 100BASE-TX hub, the Switch LED indicators should light up as the following: “10/100M FDX, 10/100M COL” LED indicator is OFF. “100M LINK/ACT,10M LINK/ACT” LED indicator is light green.
A. Using straight cable When using straight cable, the connection can be made from the uplink (MDI-II) port of the Switch to any port of the Hub. B. Using crossover cable When using crossover cable, the connection can be made from any ports of the Switch to any port of the Hub. Switch to Switch (other devices) The Switch can be connected to another switch or other devices (routers, bridges, etc.) via a two-pair Category 3, 4, 5 UTP/STP straight or crossover cable. A.
Port Speed & Duplex Mode After plugging the selected cable to a specific port, the system uses auto-negotiation to determine the transmission mode for any new twisted-pair connection: If the attached device does not support auto-negotiation or has auto-negotiation disabled, an auto sensing process will be initiated to select the speed and set the duplex mode to halfduplex.
T ECHNICAL S PECIFICATION General Standards IEEE 802.3 10Base-T Ethernet IEEE 802.3u 100 Base-TX Fast Ethernet ANSI/IEEE 802.3 NWay auto-negotiation Protocol Data Transfer Rate Topology Network Cables CSMA/CD Ethernet: 10Mbps (half duplex) 20Mbps (full duplex) Fast Ethernet: 100Mbps (half duplex) 200Mbps (full duplex) Star 10BASET: 2-pair UTP Cat. 3,4,5 (100 m), EIA/TIA- 568 100-ohm STP (100 m) 100BASE-TX: 2-pair UTP Cat. 5 (100 m), EIA/TIA-568 100-ohm STP (100 m) 100BASE-FX: 62.
Physical and Environmental AC inputs 100 to 240 VAC, 50 or 60 Hz internal universal power supply Power Consumption 40 watts. (max.) Temperature Operating: 0° ~ 50° C, Storage: -10° ~ 70° C Humidity Operating: 10% ~ 90%, Storage: 5% ~ 90% Dimensions 440 x 200 x 44 mm (W x H x D) EMI: FCC Class B, CE Mark , VCCI Class B Performance Transmission Method: RAM Buffer: Store-and-forward 16-port: 1Mbytes per device 24-port: 1.
A PPENDIX A: RJ-45 P IN S PECIFICATION When connecting your 16/24-port 10/100M NWay Fast Ethernet Switch to another switch, a bridge or a hub, a modified crossover cable is necessary. Please review these products for matching cable pin assignment. The following diagram and tables show the standard RJ-45 receptacle/connector and their pin assignments for the switchto-network adapter card connection, and the straight / crossover cable for the Switch-to-switch / hub / bridge connection.
The standard RJ-45 receptacle/connector The following shows straight cable and crossover cable connection: Straight cable for Switch (uplink MDI-II port) to switch/Hub or other devices connection Crossover cable for Switch (MDI-X port) to switch/hub or other network devices (MDI-X port) connection 22
