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QUICKSTART GUIDE

MULTILINK ETHERNET COMMUNICATIONS SWITCH – QUICKSTART GUIDE

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5  Introduction to Twisted Pair and Fiber Optic 

Ethernet LANs

This section will provide a brief review of modern Ethernet media before covering the steps
to correctly configure the Multilink switch for typical protective relaying applications. For
this discussion the range of IP addresses that will be used are within the range of
3.94.247.1 to 3.94.247.254 using a subnet mask of 255.255.255.0. This same range of
addresses can be used for testing purposes but you should contact your IT support group
for a valid range of addresses to be used for your particular application.

5.1  Ethernet Physical Layer: Twisted Pair Copper vs Fiber Optic

Today, the two most popular physical layer standards for Ethernet are twisted pair copper
cable and fiber optic cable. Twisted pair copper is easier to terminate, has lower
installation costs but is susceptible to electrical noise and a single run of twisted pair cable
is distance limited.

Fiber optic media typically is able to be applied over much longer distances, is immune to
electrical noise and while being more difficult to terminate the availability of per-
fabricated cables has reduced the complexity of the installation within the substation
dramatically.

5.1.1  Twisted Pair copper cable

• Easy to Terminate
• Low installation costs
• Susceptible to noise interference
• Limited by 100m distance
• Either shielded or unshielded (UTP)

Содержание MultiLink

Страница 1: ...93B Copyright 2009 GE Multilin GE Multilin 215 Anderson Avenue Markham Ontario Canada L6E 1B3 Tel 905 294 6222 Fax 905 201 2098 Internet http www GEmultilin com 1601 0220 A3 IISO9001 2000 G E M ULTILI...

Страница 2: ...ance is given with respect to local codes and ordinances because they vary greatly 2009 GE Multilin Incorporated All rights reserved GE Multilin Multilink Quickstart Guide for revision 3 x Multilink i...

Страница 3: ...FIBER OPTIC ETHERNET LANS 15 ETHERNET PHYSICAL LAYER TWISTED PAIR COPPER VS FIBER OPTIC 15 Twisted Pair copper cable 15 Fiber 16 SUPPORTED NETWORK TOPOLOGIES 16 Star Architecture 16 Mesh Architecture...

Страница 4: ...G TAGGED VLANS 42 Configuring a VLAN within the switch 43 CONFIGURING THE MULTILINK SWITCH FOR RING ONLY MODE 49 10 MULTILINK FIRMWARE UPDATES 57 UPDATING MULTILINK FIRMWARE 57 SELECTING THE PROPER VE...

Страница 5: ...or unevenly load the rack system 4 Verify the equipment s power requirements to prevent overloading of electrical circuits 5 Verify that the equipment has a reliable and uncompromised grounding path 6...

Страница 6: ...size allows the Unit to be easily placed in an office or lab area and it can also be either shelf of wall mounted Locate a power source within six feet 2 meters of the intended Unit site The rugged m...

Страница 7: ...is a simple procedure When properly installed the front mounted LED status indicators should be in plain view and easy to read Rack mount installation requires special 19 inch rack mounted brackets a...

Страница 8: ...bling torque The optional 23 brackets and the ETSI 21 brackets each come as a pair in a package along with the necessary screws for attaching the brackets to the sides of the Unit They must be ordered...

Страница 9: ...Unit from the DIN rail simultaneously press down the top of the DIN rail latches to release the switch which can then be dismounted by pulling the bottom out Once the bottom of the Unit is rotated ou...

Страница 10: ...unit is held out from the panel or wall behind it creating a rear space of about inch or 1 cm This allows air circulation and cooling of the rear part of the case Since the Unit uses special internal...

Страница 11: ...Once the bottom of the Unit is rotated out the DIN Rail latch is not engaged and it can be moved up and out free of the DIN Rail mounting If the Unit is to be mounted on a DIN Rail track for proper c...

Страница 12: ...UICKSTART GUIDE QUICKSTART GUIDE The Unit is mounted using the brackets as shown in the illustration above The spacing for the mounting screws into the supporting wall or panel is a rectangle 21 74 x...

Страница 13: ...htforward Simply insert DC leads to the Unit power terminal positive negative and or AC leads to the live L neutral N and Please ensure the correct polarity The should be connected to the safety groun...

Страница 14: ...the positive or negative leads NOTE Note The GND should be hooked up first The Unit has a floating ground so the user may elect to ground either the positive or negative terminal When power is applie...

Страница 15: ...witch for power to the unit is not available on Unit units with the alarm contacts option as these two features occupy the same space in the case The first NC alarm contact top position is a software...

Страница 16: ...ing link between the and safety ground must be removed prior to the dielectric strength test to protect the transient suppression circuitry of the power supply For specific product details please refe...

Страница 17: ...separate items They are not included with the Unit 4 1 1 ML2400 ML1600 FIGURE 10 Unit console port The pin assignment for the console port are indicated in the following table This information enable...

Страница 18: ...START GUIDE QUICKSTART GUIDE 4 1 2 ML1200 ML800 Table 2 Pinout information for above connector Pin Name Description Direction 1 RTX Request to Send OUT 3 TXD Transceiver Data OUT 4 GND Ground 5 GND Gr...

Страница 19: ...or your particular application 5 1 Ethernet Physical Layer Twisted Pair Copper vs Fiber Optic Today the two most popular physical layer standards for Ethernet are twisted pair copper cable and fiber o...

Страница 20: ...g The port that connects one switch to another is often called the uplink port and with many switches the uplink port can operate at much higher baud rates than the standard ports The link formed by t...

Страница 21: ...many twisted pair interfaces can work at either baud rate the designation 10 100 Base T has evolved to show this capability The cable can be ether unshielded twisted pair UTP or shielded twisted pair...

Страница 22: ...aximum permitted cable length is 100 meters The cable pin connections can be one of two configurations The first is called a straight through cable and the second is called either a crossover or a pat...

Страница 23: ...s green The final wire pair wire pair 4 consists of a white wire with brown bands while the other wire is Brown The Electronic Industry Association EIA Telecommunications Industry Association s TIA St...

Страница 24: ...t free lens tissue dampened in alcohol Ensure the connectors are clean before proceeding NOTE Note One strand of the duplex fiber optic cable is coded using color bands at regular intervals The color...

Страница 25: ...ports CAT 3 may be used In either case the maximum distance for unshielded twisted pair cabling is 100 m 328 ft NOTE Note It is recommended that high quality CAT 5 cables which work with 10 Mb and 100...

Страница 26: ...f the cable with an RJ45 plug into the RJ45 connector on the module Although the connector is shielded either unshielded or shielded cables may be used Z Connect the other end of the cable to the corr...

Страница 27: ...1 Fiber Optic Ethernet Fiber optic Ethernet is rapidly becoming the medium of choice in applications where longer distances and immunity to EMI are of importance such as power system applications Howe...

Страница 28: ...125 m 50 125 m Single Mode 9 125 m Will become more popular as baud rate goes up This is a scaled drawing of both a 62 5 125 m multi mode fiber and 9 125 m single mode fiber The outer clad of both is...

Страница 29: ...h that there is total internal reflection of the light being transmitted down the core Picture this by imagining that the clad is a tube whose interior surface is polished so smooth it is like a mirro...

Страница 30: ...racting from the Optical Power Budget 1 dB for LED aging and 1 dB for each pair of connectors referred to as insertion loss Worst Case OPB OPB 1dB for LED aging 1dB insertion loss for each pair of con...

Страница 31: ...nterface The switch has been shipped with a default IP address of 192 168 1 2 and a subnet mask of 255 255 255 0 Consult your network administrator to determine if the IP address subnet mask or defaul...

Страница 32: ...e used to configure the switch This program is found on most windows based operating systems under programs accessories communications Hyperterminal Z Once the HyperTerminal application is launched yo...

Страница 33: ...ect an icon and name to use for saving the new Hyperterminal configuration Z Select the computer s serial port that is connected to the Multilink switch Z Select OK Z In the next window set the baud r...

Страница 34: ...30 MULTILINK ETHERNET COMMUNICATIONS SWITCH QUICKSTART GUIDE QUICKSTART GUIDE Z Left mouse click on the OK icon to attempt communication to the Multilink switch...

Страница 35: ...log into Unit system is displayed Z Press the Enter key one more time to get the login prompt Z Enter the login name manager and the default password manager Once you are successfully logged in the p...

Страница 36: ...A valid IP address and subnet mask can be programmed into the switch using the IP config command as follows Z Type ipconfig ip then enter the IP address in our example we will use a unique address be...

Страница 37: ...ebooted you will need to log in again To confirm that the IP address and subnet mask were saved correctly enter the command show setup followed by the Enter key The Multilink switch will then provide...

Страница 38: ...ator There are rules associated with the assignment of these numbers which go well beyond this introduction As mentioned at the beginning of this guide for our test network we will be using a subnet m...

Страница 39: ...TCH QUICKSTART GUIDE 35 Z Right mouse click on the Local Area Connections icon and select Properties Z Locate and click on the Ethernet card it will have TCPIP Protocol as part of its name The Etherne...

Страница 40: ...47 001 to 3 94 247 254 if using our test network address range Z Enter the subnet mask which if using our test network will be 255 255 252 0 Z Select OK then OK again to exit the LOCAL AREA NETWORK PR...

Страница 41: ...ted with a DOS window Z At the DOS prompt enter the command ipconfig followed by the Enter key This is the command that will cause the Ethernet adaptor to immediately use the IP and Subnet Mask addres...

Страница 42: ...the switch s web page Z At the Multilink login web page enter the default Login name which is manager Z Enter the default login Password which is again manager Z Left mouse click on the Login pushbutt...

Страница 43: ...ate port The following procedure should be used to enable Link Loss Alert on each of the the ports used in the redundant configuration Z Note the names of all switch ports that will require the Link L...

Страница 44: ...port number one which has the name A1 Z Ensure that the LINK LOSS ALTER feature is enabled on port A1 Z To save the change if made click on the Save icon Z Repeat this procedure for the fiber optic p...

Страница 45: ...one of the relays Z Disconnect the normal port s transmit or receive fiber Z Note that communications to the relay aren t disrupted and check that Ethernet port diagnostics are enabled The message pri...

Страница 46: ...a VLAN When using tag based VLANs a tag called a VLAN identifier is sent as part of the message This tag allows the message to move across multiple switches whose ports are part of the same tagged VLA...

Страница 47: ...ed ports displayed on the Multilink home page In our example we want the ports named C5 and C7 to be part of the VLAN Z Once the port names have been determined open the main port configuration page b...

Страница 48: ...the VLANs menu and select the Type menu Z In this menu set the VLAN type to tag Z Select the Save icon We have now configured the switch to support tagged based VLANs We can now proceed to the tagged...

Страница 49: ...ck on the Add pushbutton A screen will open that will allow you to configure a new tag based VLAN Z Within this screen enter the new VLAN ID number or tag and the name of the VLAN We will use a tag of...

Страница 50: ...CKSTART GUIDE QUICKSTART GUIDE You will notice below that the status of the VLAN named GOOSE2 is displayed as Pending To activate VLAN 2 proceed as follows Z Select Status Z Once in the Status menu se...

Страница 51: ...ow active and ports 21 and 23 are part of this VLAN Ports 21 and 23 have been removed from the default tagged based VLAN1 You can add ports 21 and 23 back into the default tagged based VLAN 1 if you w...

Страница 52: ...Add ports 21 and 23 to tagged based VLAN 1 by checking the corresponding boxes Z Select the save icon at the top of the screen Z Select OK to return to the main tag VLAN menu Note that ports 21 and 23...

Страница 53: ...wo ports per switch are used to form the ring and all other ports will not be part of another ring Note that RSTP and Ring only mode support a maximum of 80 switches RO mode has typical recovery time...

Страница 54: ...QUICKSTART GUIDE QUICKSTART GUIDE From this screen we can see that the port named C5 is actually port 21 Z Note this port number Z from the Administration menu open the Set menu Z Open the STP type se...

Страница 55: ...TILINK ETHERNET COMMUNICATIONS SWITCH QUICKSTART GUIDE 51 Z Save the setting Z From the configuration menu open the RSTP menu Z Select Bridge RSTP Note that the protocol is still set to normal RSTP Z...

Страница 56: ...LINK ETHERNET COMMUNICATIONS SWITCH QUICKSTART GUIDE QUICKSTART GUIDE Z Once in Edit mode change the Status to Enabled Z Once these settings have been completed Save the configuration ENABLE STATUS TH...

Страница 57: ...QUICKSTART GUIDE MULTILINK ETHERNET COMMUNICATIONS SWITCH QUICKSTART GUIDE 53 Z Once saved select OK then OK again to exit...

Страница 58: ...DE QUICKSTART GUIDE Z Select the Configuration RSTP RO Mode menu as shown above Z Click the Edit button to configure RO Mode Z Select the desired ports that are part of the ring as shown below Z Click...

Страница 59: ...atus to Enable Z Save the configuration by clicking on the icon For proper recovery disable the Link Loss Alert function on the port named C5 port21 as follows Z From the main port configuration menu...

Страница 60: ...her port on this and the rest of the switches that form the ring Z Once this procedure has been completed for all ports forming the ring connect the configured ports into the ring topology as shown be...

Страница 61: ...figuration files as well as a copy of the Multilink firmware We recommend at least 15 MB of free disk space 5 Manager level account name and password for the switch being upgraded 6 An internet connec...

Страница 62: ...the firmware Z Enter the xmodem command as shown below Z Click on the Transfer menu item and choose the Receive File option Z Enter the path to the folder in which the configuration file will be store...

Страница 63: ...riginal Configuration procedure The following procedure describes how to upgrade the firmware Z Use the xmodem command ML800 1200 1600 2400 Xmodem get type app Do you wish to upgrade the image Y or N...

Страница 64: ...oot the switch using the Reboot command or by switching the power off then on ML800 1200 1600 2400 reboot Proceed on rebooting the switch Y or N Y Rebooting now Z Login to the switch and use the show...

Страница 65: ...tocol Z Click on the Send button The file will start to load as shown below Z Once the transfer is complete the switch will have to be rebooted either by entering Reboot or by switching the power off...

Страница 66: ...d information ready Z Select the switch to upgrade Ensure you have system administration rights and privileges available on that switch Z Open a SWM session with the switch by typing in the following...

Страница 67: ...er reboot the new version of the Multilink firmware is ready for use 10 4 2 Using TFTP It is always a good idea to save the configuration before an upgrade GE Multilin recommends a two step update fir...

Страница 68: ...64 MULTILINK ETHERNET COMMUNICATIONS SWITCH QUICKSTART GUIDE QUICKSTART GUIDE As the file is being loaded you will see the file transfer in progress window...

Страница 69: ...QUICKSTART GUIDE MULTILINK ETHERNET COMMUNICATIONS SWITCH QUICKSTART GUIDE 65 Z Reboot the switch when the transfer is complete After reboot the new version of the Multilink firmware is ready for use...

Страница 70: ...66 MULTILINK ETHERNET COMMUNICATIONS SWITCH QUICKSTART GUIDE QUICKSTART GUIDE...

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