DES-1012 10/100 Fast Ethernet Switch User’s Guide Rev. 01 (January, 1998) 6DES1012..
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T ABLE OF C ONTENTS 0 ABOUT THIS GUIDE ............................................................................. ix PURPOSE ...................................................................................................... ix TERMS/USAGE ............................................................................................. ix OVERVIEW OF THIS USER'S GUIDE ............................................................... ix 1 INTRODUCTION .........................................................
10/100 Fast Ethernet Switch User’s Guide Using a Crossover Cable ........................................................................ 16 CONFIGURING THE PORT SPEED & DUPLEX MODE ..................................... 16 SWITCH TO SWITCH (OTHER DEVICES) ....................................................... 17 Using a Straight Cable............................................................................ 18 Using a Crossover Cable ......................................................................
10/100 Fast Ethernet Switch User’s Guide 0 A BOUT T HIS G UIDE Congratulations on your purchase of DES-1012 Fast Ethernet Switch. This device integrates 100Mbps Fast Ethernet and 10Mbps Ethernet network capabilities in a highly flexible desktop package. Purpose This manual discusses how to install your DES-1012 Fast Ethernet Switch.
/100 Fast Ethernet Switch User’s Guide ♦ Chapter 4, Connecting the Switch. Tells how you can connect the your Switch to your Ethernet network. ♦ Appendix A, Technical Specifications. Lists the technical (general, physical and environmental, and performance) specifications of the Switch. ♦ Appendix B, RJ-45 Pin Specification. Describes the RJ-45 receptacle/connector and the straight and crossover cable connector. ♦ Appendix C, Describes the DES-112FX 100BASE-FX Module Specifications.
10/100 Fast Ethernet Switch User’s Guide 4 1 I NTRODUCTION This section describes the features of the DES-1012, as well as giving some background information about Ethernet and Fast Ethernet switching technology. Fast Ethernet Technology The growing importance of LANs and the increasing complexity of desktop computing applications are fueling the need for high performance networks.
10/100 Fast Ethernet Switch User’s Guide Switching Technology Another approach to pushing beyond the limits of Ethernet technology is the development of switching technology. A switch bridge's Ethernet packets at the MAC address level of the Ethernet protocol transmitting among connected Ethernet or Fast Ethernet LAN segments. Switching is a cost-effective way of increasing the total network capacity available to users on a local area network.
10/100 Fast Ethernet Switch User’s Guide Features The Switch is designed for easy installation and high performance in an environment where traffic on the network and the number of users increase continuously. The Switch with its rack size is specifically designed for network workgroups. The Switch provides immediate access to a rapidly growing network through a wide range of user-reliable functions.
10/100 Fast Ethernet Switch User’s Guide uplink port, you will not be able to use port one (1x) because these ports are logically connected. Performance Features • 10/100Mbps Auto-Negotiation and Auto-Sensing on All Ports • Full/half duplex operation for each port • 1.
10/100 Fast Ethernet Switch User’s Guide 5 2 U NPACKING AND S ETUP This chapter provides unpacking and setup information for the Switches. Unpacking Open the shipping carton of the Switch and carefully unpack its contents.
10/100 Fast Ethernet Switch User’s Guide Setup Consider the following when setting up the Switch: ♦ The power outlet should be within 1.82 meters of the device. ♦ Visually inspect the power cord and see that it is fully secured to the AC power connector. ♦ Make sure that there is proper heat dissipation from and adequate ventilation around the Switch. Do not place heavy objects on the Switch.
10/100 Fast Ethernet Switch User’s Guide Figure 1B, Installing the Switch in an equipment rack Power On The Switch can be used with AC power sources 100 to 240 VAC, 50 to 60 Hz. The power switch is located at the rear of the unit adjacent to the AC power connector and the system fan. To turn the Switch on, press the power switch to the on or “1” position.
10/100 Fast Ethernet Switch User’s Guide Power Failure As a precaution, the Switch should be turned OFF in case of a power failure. Press the power switch to the off or “0” position. When power is resumed, turn the Switch ON. At all times, avoid leaving the Switch ON after the occurrence of a power failure.
10/100 Fast Ethernet Switch User’s Guide 6 3 I DENTIFYING E XTERNAL C OMPONENTS This chapter describes the front panel, rear panel and LED indicators of the Switch. Front Panel The front panel of the Switch consists of 12 (10/100 Mbps MDI-X) ports, one Uplink (MDI-II) port and LED indicators. Descriptions of the ports appear in the Introduction of this User’s Guide.
10/100 Fast Ethernet Switch User’s Guide Rear Panel The rear panel of the Switch consists of a power switch, an AC power connector, a system fan, a location for slide-in module, and a duplex-mode Dip switch. Location for slide-in module System Fan Dip switch for Duplex mode AC Power Connector Power switch Figure 3, Rear panel view of the Switch ♦ Slide-in Module Slot. Use this slot to install a optional 100Base-FX(SC type) DES-112FX slide-in module.
10/100 Fast Ethernet Switch User’s Guide power cord into this connector, and the male into a power outlet. Supported input voltages range from 100 ~ 240 VAC at 50 ~ 60 Hz. ♦ Power Switch. This turns the Switch on and off. To turn on the system, press the switch to the “1” position; to turn off, press the switch to the “0” position. LED Indicators The LED indicators of the Switch include Power, 100 M, Link/Act (Link/Activity) and FDX/Col (Full-duplex/Collision).
10/100 Fast Ethernet Switch User’s Guide indicators blink green whenever there is reception or transmission (i.e. Activity act) of data occurring at a port. ♦ FDX/Col. This LED indicator is green when a respective port is in full duplex (FDX) mode. Otherwise, it is OFF for half duplex (HDX) operations. It blinks yellow when collisions are occurring on the respective port. ♦ Console. This LED indicator is green when RS-232 link is present.
10/100 Fast Ethernet Switch User’s Guide 7 4 C ONNECTING T HE S WITCH This chapter describes how to connect the DES-1012 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 10/100 Mbps jack) can be connected to any of the ports. Figure5, The Switch connected to a PC or Workstation The LED indicators for a PC connection are dependent on the LAN card capabilities.
10/100 Fast Ethernet Switch User’s Guide connection, check the PC LAN card, the cable, switch conditions and connections. The following are LED indicator possibilities for a PC to Switch connection: 1. The 100M LED indicator comes on for a 100 Mbps and stays off for 10 Mbps. 2. The Link/Act LED indicator illuminates upon hookup. 3. The FDX/Col LED indicator depends upon LAN card capabilities.
10/100 Fast Ethernet Switch User’s Guide ♦ Link/Act indicator is ON. ♦ FDX/Col indicator is OFF. 100Base-TX Hub For a 100Base-TX hub, the Switch LED indicators should illuminate as follows: ♦ 100M LED speed indicator is ON. ♦ Link/Act is ON. ♦ FDX/Col LED indicator is OFF.
10/100 Fast Ethernet Switch User’s Guide Using a 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 (see figure 7). Using a Crossover Cable When using crossover cable, the connection can be made from any port of the Switch to any port of the Hub (see figure 7).
10/100 Fast Ethernet Switch User’s Guide the auto-negotiation process is initiated to negotiate for one of the following modes: 100Mbps/FDX 100Mbps/HDX 10Mbps/FDX 10Mbps/HDX NOTE: The default communication mode of the Switch is: autonegotiation (On), and HDX (Dip switch down) . Switch to Switch (Other Devices) DES-1012 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.
10/100 Fast Ethernet Switch User’s Guide Using a Crossover Cable When using crossover cable, this is done from any (MDI-X) port of the Switch (Switch A) to any of the 10Mbps or 100Mbps (MDI-X) port of the other switch (switch B) or other devices (see figure 8). Switch A’s LED indicators for the respective connected ports are as follows: ♦ 100 M is ON for 100Base-TX, otherwise it is OFF. ♦ Link/Act is ON. ♦ FDX/Cool depends on the connected switch or other device.
10/100 Fast Ethernet Switch User’s Guide 3. 4. Set your terminal to the following setting: • Baud—9600 • Parity- None • Data Bits—8 • Stop Bit—1 Turn on the DES-1012. When you enter the main screen of the terminal, press the or key once to start communication. If the connection is successful, the console program Main Menu will appear on the screen. Figure 9, The Console Program Main Menu Navigating the Console Program Screens To Do This Use This Key. . .
10/100 Fast Ethernet Switch User’s Guide Disable a function or select 10Mbps 0 Enable a function or select 100Mbps 1 Go back to the main menu Esc or Enter While following steps in these sections, you may find the screen map below M ain M enu S : goto system sub menu P : goto po rt submenu V : D isplay H /W & F /W version numb er S : get status o f each port S : D isp lay slide-in mod ule status E : set p ort E N AB L E /D IS A B LE C : get po rt counter P lease select a port number--> > 01 0
10/100 Fast Ethernet Switch User’s Guide useful: Figure 10, The Console Program Screen Map The following example illustrates how to disable or enable the AN function for Port 1: 1. Press P from the Main Menu to access the Port Submenu. 2. Press A in the port submenu to access the set AN function ENABLE/DISABLE screen. 3. Press 01 to access Port 1. 4. Press 0 to disable the AN function or press 1 to enable the AN function. 5. Press or to go back to the main menu.
10/100 Fast Ethernet Switch User’s Guide S: Display slide-in module status. This indicates the status of the slide-in module. If there is no module installed, the field will read, slide-in module is Absent.” If there is a module installed, this field will display the type of slide-in module. NOTE: When a slide-in module is fitted, port 12 automatically switches to become the slide-in module port. Port Submenu With the Port Submenu, you can perform the following: S: Get status of each port.
10/100 Fast Ethernet Switch User’s Guide NOTE: To perform a factory reset, turn the device off. Power on the device again and the factory settings should now be in effect. Parameters in this screen are described in the following table. Field Description PID Displays the number of the currently selected port. EN Displays the RX/TX status of the selected port, Enable or Disable. Link Displays the current status of the link between the selected port and the connected node. This can be Up or Down.
10/100 Fast Ethernet Switch User’s Guide Figure 13, Set port ENABLE/DISABLE Because the following four functions have the similar screens that let you specify. Displayed here is the screen for E: set port ENABLE/DISABLE. E: Set port ENABLE/DISABLE. This is the operating status of the port. Use this screen to enable or disable the selected port. A disabled port does not transmit any packets to the connected segment, nor forward any received packets. A: Set the AN function ENABLE/DISABLE.
10/100 Fast Ethernet Switch User’s Guide port receiving buffer is full. Press 0 to disable flow control and press 1 to set data rate as 100Mbps. NOTE: Flow control is only available in half-duplex mode. In full-duplex mode, flow control is not available. The port status & setting list indicates only the setting configured for flow control rather than the status of flow control. Port Counter With the Port Counter, you can do the following: C: Monitor statistics related to the traffic status of each port.
10/100 Fast Ethernet Switch User’s Guide Parameters in this screen are described in the following table. Field Description TX Packet Count The number of packets that have been transmitted successfully by the selected port. Packets are from 64-1518 bytes, including the CRC. RX Byte Count The size, in bytes, of all packets received and forwarded successfully by the selected port. RX Packet Count The number of packets that have been received successfully on the selected port.
10/100 Fast Ethernet Switch User’s Guide Jabber PKT Count The number of packets received that were greater than 1,518 bytes long and had either a CRC error or an alignment error. Collision PKT Count The number of collisions that occurred on the segment connected to the selected port.
10/100 Fast Ethernet Switch User’s Guide $ 7 T ECHNICAL S PECIFICATIONS General Standards: IEEE 802.3 10Base-T Ethernet IEEE 802.3u 100 Base-TX/FX Fast Ethernet ANSI/IEEE Std 802.3 NWay auto-negotiation IEEE 802.3 Frame types: Transparent IEEE 802.
10/100 Fast Ethernet Switch User’s Guide General (continued) Network Cables: 10BaseT: 2-pair UTP Cat. 3,4,5 (100 m) EIA/TIA- 568 100-ohm STP (100 m) 100Base-TX: 2-pair UTP Cat.
10/100 Fast Ethernet Switch User’s Guide Humidity: 5% ~ 95% non-condensing Dimensions: 442x258x44 mm (1U) Weight: 2.
10/100 Fast Ethernet Switch User’s Guide % 8 RJ-45 P IN S PECIFICATION When connecting your 10/100 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 switch-to-network adapter card connection and the straight/ crossover cable for the Switch-toswitch/hub/bridge connection.
10/100 Fast Ethernet Switch User’s Guide RJ-45 Connector pin assignment Contact Media Direct Interface Signal 1 2 3 4 5 6 7 8 Tx + (transmit) Tx - (transmit) Rx + (receive) Not used Not used Rx - (receive) Not used Not used The standard Category 3 cable, RJ-45 pin assignments 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 dev
C OPTIONAL 100BASE-FX MODULE The 100BASE-FX specification requires the fiberoptic cabling which is more expensive than the conventional UTP cabling. However, it has a definite appeal to widespread LANs where cost of wiring is less important than the distance it delivers to Ethernet LANs-400 meters for half-duplex segments and 2 kilometers for full-duplex segments. The 100BASE-FX port requires one pair of 62.5/125 micron fiber-optic cable.
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