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Fiber Optic Interface

DELHF-UA User’s Guide

5-3

Table 5-6

Single Mode Receiver (Signal Detect) Specifications

Single Mode Receiver (Signal Detect)

Assert power

-33.0 dBm typical
-31.0 dBm maximum

Assert time

10 µs typical
100 µs maximum

Deassert power

-36.0 dBm typical
-45.0 dBm minimum

Deassert time

10 µs typical
350 µs maximum

Hysteresis

1.5 dB minimum

Содержание DELHF-UA

Страница 1: ...DIGITAL FDDI Modular Interface DELHF UA User s Guide ...

Страница 2: ......

Страница 3: ...DIGITAL FDDI Modular Interface DELHF UA User s Guide Part Number 9032632 September 1998 This manual describes how to use the DELHF UA module Revision Update Information This is a new document ...

Страница 4: ...PIM are trademarks of Cabletron Systems Inc DIGITAL and the DIGITAL logo are trademarks of Digital Equipment Corporation All other product names mentioned in this manual may be trademarks or registered trademarks of their respective companies UNITED STATES GOVERNMENT RESTRICTED RIGHTS The enclosed product a was developed solely at private expense b contains restricted computer software submitted w...

Страница 5: ...Interference Regulations of the Canadian Department of Communications Le présent appareil numérique n émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la class A prescrites dans le Règlement sur le brouillage radioélectrique édicté par le ministère des Communications du Canada VCCI Notice Class A Computing Device Taiwanese Notice Class A Computing D...

Страница 6: ...nterpreted and governed under the laws and in the state and federal courts of New Hampshire You accept the personal jurisdiction and venue of the New Hampshire courts EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY 1 EXCLUSION OF WARRANTY Except as may be specifically provided by Cabletron in writing Cabletron makes no warranty expressed or implied concerning the Program including its documentat...

Страница 7: ...r Electrotechnical Standardization When operating within their performance limitations laser transceiver output meets the Class 1 accessible emission limit of all three standards Class 1 levels of laser radiation are not considered hazardous SAFETY INFORMATION CLASS 1 LASER TRANSCEIVERS LASER RADIATION AND CONNECTORS When the connector is in place all laser radiation remains within the fiber The m...

Страница 8: ...N 60950 Equipment Type Environment Networking Equipment for use in a Commercial or Light Industrial Environment We the undersigned hereby declare under our sole responsibility that the equipment packaged with this notice conforms to the above directives Manufacturer Legal Representative in Europe Mr Ronald Fotino Mr J Solari ___________________________________ ___________________________________ F...

Страница 9: ...CHAPTER 1 INTRODUCTION 1 1 Overview 1 1 1 1 1 Features 1 1 1 2 Specifications 1 3 CHAPTER 2 INSTALLATION 2 1 Unpacking the DELHF 2 1 2 2 Installing FPIMs 2 2 2 3 Installing an HSIM 2 4 2 3 1 Installing an HSIM in an Interface Module 2 5 2 3 2 Installing a DELHF UA in a Standalone Hub 2 7 CHAPTER 3 LOCAL MANAGEMENT 3 1 Local Management Keyboard Conventions 3 2 3 1 1 Selecting Local Management Menu ...

Страница 10: ...he DELHF UA for Full Duplex Operation 3 29 3 10 The FDDI Ethernet Translation Configuration Screen 3 29 3 10 1 FDDI Translation Configuration Screen Fields 3 30 3 10 2 Setting Frame Translation Types 3 33 3 10 3 Setting the Frame Translation Types to the Default Values 3 33 3 10 4 When to Set the Interpret 802 3 Length for Frames 64 Bytes Field to ENABLED 3 33 3 10 5 Setting the Interpret 802 3 Le...

Страница 11: ...Contents DELHF UA User s Guide ix APPENDIX A FPIM SPECIFICATIONS A 1 DEL00 UI and DEL01 UI A 1 A 2 DEL02 UI and FPIM 04 A 2 A 3 DEL05 UI and FPIM 07 A 3 ...

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Страница 13: ...this Guide Read through this guide completely to understand the interface module features capabilities and Local Management functions A general working knowledge of Ethernet and IEEE 802 3 type data communications networks and their physical layer components is helpful when using these devices Intended Audience This manual is intended for use by personnel who will install and initially set up the ...

Страница 14: ...the DELHF UA in an interface module or hub Chapter 3 Local Management describes how to access Local Management and use the Local Management screens to manage the DELHF UA interface module Chapter 4 LANVIEW LEDs details the DELHF UA LANVIEW LEDs that enable you to quickly diagnose network operational problems Chapter 5 Specifications lists the DELHF UA operating specifications Appendix A FPIM Speci...

Страница 15: ...ce of an electrical hazard Term Definition DELHF UA A DIGITAL FDDI High Speed Interface Module HSIM provides connectivity and functionality to various Digital modules and standalong hubs through the FDDI technology Supports two FDDI Port Interface Modules FPIMs FDDI Fiber Distributed Data Interface a set of industry standards for high speed fiber optic ring local area networks FPIM FDDI Port Inter...

Страница 16: ... repeat them Cabletron Cabling Guide DIGITAL FDDI Technology Guide DIGITAL Open DECconnect Structured Wiring System Applications Guide The manuals referenced above can be obtained on the World Wide Web in Adobe Acrobat Portable Document Format PDF at the following site http www networks digital com The documentation for the device in which the DELHF UA will be installed may assist you with the ins...

Страница 17: ... World Wide Web To locate product specific information refer to the DIGITAL Network products Home Page on the World Wide Web at the following locations Attn Documentation Project Manager E MAIL doc_quality lkg mts dec com North America http www networks digital com Europe http www networks europe digital com Asia Pacific http www networks digital com au ...

Страница 18: ...n of any action s already taken to resolve the problem e g changing mode switches rebooting the unit etc The serial and revision numbers of all involved products in the network A description of your network environment layout cable type etc Network load and frame size at the time of trouble if known The device history i e have you returned the device before is this a recurring problem etc ...

Страница 19: ...nnten DANGER Déconseille à l utilisateur d exécuter une action pouvant entraîner des dommages matériels corporels voire même la mort AVISO Previene contra una acción que podría dañar el equipo provocar daños personales o la muerte CAUTION Contains information essential to avoid damage to the equipment ACHTUNG Liefert wichtige Informationen um einen Geräteschaden zu vermeiden ATTENTION Informations...

Страница 20: ...vice MUST be powered down Ensure that you remove the power cord and ONLY the screws required to remove the chassis cover Failure to comply could result in an electric shock hazard VORSICHT Um den DELHF UA in einem selbständigen Hub zu installieren muß das Gerät ausgeschaltet werden Stellen Sie sicher daß das Netzkabel gezogen wird und nur diejenigen Schrauben entfernt werden die zum Abnehmen des G...

Страница 21: ...quisitos se podrían provocar electrochoques WARNING Ensure that the chassis cover is in place before reconnecting the power cord VORSICHT Das Gehäuse sollte ordnungsgemäß angebracht sein bevor das Netzkabel wieder angeschlossen wird DANGER Avant de rebrancher le cordon d alimentation vérifiez que le couvercle du châssis est bien en place AVISO Asegúrese de que la cubierta del chasis esté en su sit...

Страница 22: ...autions relatives à l électricité statique Si vous ne tenez pas compte de ces conseils vous risquez d endommager cet équipement PRECAUCIÓN DELHF UA FPIMs y el hub o módulo de host es sensible a la descarga estática Utilice una banda antiestática para la muñeca y observe todas las precauciones sobre estática durante este procedimiento Si no se cumple con estos requisitos se puede dañar el equipo CA...

Страница 23: ...ragten ATTENTION Au cours des diagnostics il arrive que les voyants A et B clignotent en rouge Si ces voyants restent de couleur rouge pendant plusieurs minutes cela peut signaler un incident matériel Si cela dure plus longtemps contactez le représentant DIGITAL du support technique PRECAUCIÓN Los LEDs A y B a veces parpadearán brevemente en rojo mientras se realiza el diagnóstico Sin embargo si p...

Страница 24: ...nt plusieurs minutes cela peut signifier qu il y a un problème matériel sur ce dernier Contactez le représentant DIGITAL du support technique PRECAUCIÓN Si DELHF UA P y S LEDs permanecen rojos durante varios minutos es posible que DELHF UA tenga un problema de hardware Comuníquese con el representante de DIGITAL ...

Страница 25: ... Figure 1 1 uses two FPIM FDDI Port Interface Module slots to provide the option of using multimode fiber optic single mode fiber optic unshielded twisted pair or shielded twisted pair transceiver ports based on the network requirements Figure 1 1 The DELHF UA The DELHF UA extends the functionality of certain DIGITAL interface modules or standalone hubs to include high speed uplink capability The ...

Страница 26: ...orts of two separate dual attached concentrators If one M type port or one segment fails the redundant port or segment activates automatically to retain connection to the ring The DELHF UA is also capable of operating in full duplex mode which creates a point to point link between two FDDI devices This allows for a data rate of 200 Mbps with each device transmitting and receiving at 100 Mbps simul...

Страница 27: ...out notice Environment Operating Temperature 5 C to 40 C 41 F to 104 F Storage Temperature 30 C to 73 C 22 F to 164 F Operating Relative Humidity 5 to 90 non condensing Regulatory Compliance Certification CE CSA C TICK FCC TUV UL VCCI Safety Requirements UL 1950 CSA C22 2 No 950 EN 60950 IEC 950 and 73 23 EEC Electromagnetic Compatibility EMC Requirements FCC Part 15 VCCI Class A EN 55022 CSA C108...

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Страница 29: ...g box Leave the module in its non conductive bag until you are ready to install it 3 Attach the antistatic wrist strap If the HSIM is to be installed in a standalone hub refer to the instructions on the antistatic wrist strap package If the HSIM is to be installed in an interface module refer to the applicable interface module User s Guide 4 After removing the module from its non conductive bag vi...

Страница 30: ...e the FPIM coverplate Save the screws and remove the FPIM coverplate 3 Refer to Figure 2 2 and remove the three faceplate screws attaching the faceplate to the DELHF UA Save the screws 4 Press the FPIM connector into the HSIM pins Only qualified personnel should install or service this unit The DELHF UA and FPIMs are sensitive to static discharges Use a grounding strap and observe all static preca...

Страница 31: ...Installing FPIMs DELHF UA User s Guide 2 3 Figure 2 1 Removing the FPIM Coverplate FPIM Coverplate Standoff Screws HSIM Standoffs ...

Страница 32: ...ved in step 3 2 3 INSTALLING AN HSIM You can install an HSIM in any DIGITAL device that supports HSIM technology e g the MultiSwitch 700 DLE32 MA Refer to the release notes for the version of firmware running on the DIGITAL device to ensure that the DELHF UA is supported The following subsections Only qualified personnel should install or service this unit A B DELHF UA A B P S Faceplate Screws HSI...

Страница 33: ...m the ports 2 Attach the antistatic wrist strap refer to the instructions outlined in the interface module User s Guide 3 Unlock the top and bottom plastic locking tabs of the module faceplate 4 Slide out the module and place it on its side with the internal components facing up 5 Refer to Figure 2 3 and remove the two faceplate mounting screws and the HSIM coverplate Save the screws 6 Refer to Fi...

Страница 34: ...e faceplate 8 Align the DELHF connector of the DELHF UA into the HSIM pins on the module 9 Press down firmly on the back of the HSIM until the pins slide all the way into the HSIM Connector Ensure that the standoffs on the interface module align with the standoff screw holes on the HSIM Standoff Screws Faceplate Mounting Screws Coverplate 209135 ...

Страница 35: ... 12 Reinstall the module in the chassis 13 Reattach the network cabling to the module Refer to Chapter 4 for instructions on configuring the DELHF UA using Local Management Figure 2 4 Installing the DELHF UA 2 3 2 Installing a DELHF UA in a Standalone Hub To install a DELHF UA into a standalone hub perform the following steps Standoff Screws Faceplate Mounting Screws 225705 HSIM Connector Standoff...

Страница 36: ...e two standoff screws Save the screws 7 Place the DELHF UA behind the hub faceplate 8 Align the DELHF UA connector of the DELHF UA with the pins on the hub 9 Press down firmly on the back of the DELHF UA until the pins slide all the way into the DELHF UA connector holes 10 Secure the DELHF UA to the module faceplate using the mounting screws saved in step 5 11 Secure the DELHF UA to the module sta...

Страница 37: ...h the chassis cover to the hub reconnect the power cord and reconnect the hub to the network Refer to Chapter 3 for instructions on configuring the DELHF UA using Local Management Ensure that the chassis cover is in place before reconnecting the power cord ...

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Страница 39: ...stalled in the host interface module or standalone hub The device is up and running A Local Management terminal is properly configured and connected to the host interface module or standalone hub in which the DELHF UA resides When installed the DELHF UA provides additional Local Management features These features are accessed by entering Local Management of the host interface module or standalone ...

Страница 40: ...rform the same Local Management function For example Press ENTER means that you can press either ENTER or RETURN unless this manual specifically instructs you otherwise SPACE Bar and BACKSPACE Key These keys cycle through selections in some Local Management fields Use the SPACE bar to cycle forward through selections and use BACKSPACE to cycle backward through selections Arrow Keys These are navig...

Страница 41: ...d at the bottom of the Local Management Screen 2 Press ENTER The Password screen displays and the session ends Using the RETURN Command 1 Use the arrow keys to highlight the RETURN command at the bottom of the Local Management screen 2 Press ENTER The previous screen in the Local Management hierarchy displays 3 Exit from Local Management by repeating steps 1 and 2 until the Main Menu screen displa...

Страница 42: ...een displays Select DELHF from the High Speed Configuration screen and press ENTER The DELHF UA Setup screen displays See Figure 3 2 To access the DELHF UA Setup screen from an interface module e g DLE32 MA navigate through the Local Management screens until the Module Specific Configuration Menu screen displays Select HIGH SPEED CONFIGURATION from the Module Specific Configuration Menu screen and...

Страница 43: ...urrent DELHF UA FDDI Ring operational status and MIB II interface statistics Ring Map Configuration Select this menu item to display the Ring Map Configuration screen The Ring Map Configuration screen contains configuration and connection information and displays the topology of the FDDI ring to which the DELHF UA is connected The Ring Map Configuration screen also provides information on all node...

Страница 44: ...he FDDI ring and to set the interval that the DELHF UA sends Neighbor Information Frames NIFs Full Duplex Configuration Select this menu item to display the Full Duplex Configuration screen This screen allows the user to configure the DELHF UA to operate in full duplex mode FDDI Ethernet Translation Configuration Select this menu item to display the FDDI Ethernet Translation Configuration screen T...

Страница 45: ...lowing steps 1 Use the arrow keys to highlight the DELHF UA Statistics menu item on the DELHF UA Setup screen 2 Press ENTER The DELHF UA Statistics screen Figure 3 3 displays Figure 3 3 The DELHF UA Statistics Screen Device Name DLE32 MA Flash Image Revision XX XX XX Slot Number X BOOTPROM Revision XX XX XX DELHF UA Statistics EXIT RETURN 209149 MIB II STATISTICS RING STATISTICS ...

Страница 46: ...s screen 3 5 THE MIB II STATISTICS SCREEN To view the MIB II interface statistics use the arrow keys to highlight the MIB II STATISTICS menu item on the DELHF UA Statistics screen and press ENTER The MIB II Interface Statistics screen Figure 3 4 displays Figure 3 4 The MIB II Interface Statistics Screen Device Name DEL32 MA Flash Image Revision XX XX XX Slot Number X BOOTPROM Revision XX XX XX DEL...

Страница 47: ... DELHF UA IN DISCARDS This field displays the total number of packets discarded by the DELHF UA due to lack of available resources IN ERRORS This field displays the total number of errors of any type received by the DELHF UA OUT OCTETS This field displays the number of octets bytes transmitted by the DELHF UA OUT UNICAST PKTS This field displays the number of unicast packets packets destined for o...

Страница 48: ...rs within the MIB II Statistics screen to zero To reset all the counters use the arrow keys to highlight the CLEAR COUNTERS field and press ENTER The counters are now reset to zero 3 6 THE RING STATISTICS SCREEN To view the Ring statistics use the arrow keys to highlight the RING STATISTICS menu item on the DELHF UA Statistics screen and press ENTER The DELHF UA FDDI Ring Statistics screen Figure ...

Страница 49: ...Ring Statistics screen fields RING STATE Displays the current ring state The possible ring states are as follows Ring Op The ring is functioning correctly Isolated The DELHF UA is not attached to the ring Non Op The DELHF UA is attempting to enter the ring Device Name DEL32 MA Flash Image Revision XX XX XX Slot Number X BOOTPROM Revision XX XX XX DELHF UA FDDI Ring Statistics RING STATE RING OP RI...

Страница 50: ...irected The claim beacon process did not complete within ten seconds The DELHF UA is sending directed beacons to indicate a problem Trace A problem has been detected with the DELHF UA or the nearest active upstream neighbor NAUN A trace is being sent to notify the nearest active upstream neighbor of the problem RING OP COUNT The Ring Op Count keeps track of the number of times the FDDI ring has in...

Страница 51: ... ports The possible port configurations are as follows Through A The flow of the primary ring is entering the MAC from port A primary ring in and exiting through port B primary ring out The secondary ring is isolated from the MAC with the flow entering from port B secondary ring in and exiting through port A secondary ring out In a normal ring state the DELHF UA MAC Configuration should read Throu...

Страница 52: ...figuration reads Wrap A the ring has lost the redundancy of the secondary ring due to the wrapped condition This configuration should be repaired as additional problems could isolate stations from the FDDI ring Figure 3 7 Example of Wrap A MAC Configuration Wrap B The flow of the primary ring is entering through port B secondary in and is wrapped by the MAC causing the ring to exit Port B Port A P...

Страница 53: ... B the ring has lost the redundancy of the secondary ring due to the wrapped condition This configuration should be repaired as additional problems could isolate stations from the FDDI ring Figure 3 8 Example of Wrap B MAC Configuration Isolated Both port A and port B are isolated from the ring Port B Port A Primary In Secondary Out Primary Out Secondary In MAC ...

Страница 54: ... port A secondary out The MAC has also wrapped port B causing the flow of the ring to enter through port B secondary in and exit through port B primary out The DELHF UA MAC Configuration can read Wrap AB if the DELHF UA is in a dual homed configuration Figure 3 10 Example of Wrap AB MAC Configuration Port B Port A Primary In Secondary Out Primary Out Secondary In MAC Port B Port A Primary In Secon...

Страница 55: ... description MASTER PORT COUNT The Master Port Count field displays the number of available M type ports 3 7 THE RING MAP CONFIGURATION SCREEN The Ring Map Configuration screen displays FDDI formatted addresses of ring stations in a graphic illustration of the FDDI ring topology and provides access to a Node Information screen for each device located on the ring To access the Ring Map Configuratio...

Страница 56: ...bilities NAS Null Attached Station Isolated station station not connected to an FDDI Ring DAS Dual Attached Station Station does not support M Master ports but does connect directly to an FDDI primary and secondary ring using A and B ports Under some conditions the display must remain on the screen for at least 30 seconds to accurately reflect ring configuration A neighbor time out can take as lon...

Страница 57: ...s DACs but without the redundancy of the dual ring topology 3 7 2 Ring Map Configuration Screen Commands The following list describes each of the Ring Map Configuration screen commands Address Mode The Address Mode command allows the user to switch between canonical and MAC format addresses To toggle between the two address modes press the SPACE bar While Local Management updates the ring map for ...

Страница 58: ...o set the number n of scrolls perform the following steps 1 Using the ARROW keys highlight the SCROLL DOWN n or SCROLL UP n command 2 Press the SHIFT and keys to increment or the SHIFT and keys to decrement until the number of shifts desired displays 3 Press ENTER The ring map scrolls n number of shifts 3 7 3 The Node Information Screen The Ring Map Node Information screen provides information for...

Страница 59: ...Ring Map Node Information Screen 3 7 4 Node Information Screen Fields The following list describes each of the Node Information screen fields Device Name DLE32 MA Flash Image Revision XX XX XX Slot Number X BOOTPROM Revision XX XX XX Ring Map NODE 209142 Selected Node Address Upstream Address Node Class MAC Count Non Master Count Master Count Peer Wrap Unattached Conc Twisted A A Twisted B B Synch...

Страница 60: ... Access Controllers that are physically housed in the selected node Non Master Count Displays the number of A and B ports on the selected node Master Count Displays the number of M ports controlled by the selected node Peer Wrap Indicates whether a wrap condition exists on a port A peer wrap does not occur when the A or B port is attached to an M port Unattached Conc DAC Only Indicates whether the...

Страница 61: ...or real time applications Rooted Indicates whether the selected node has an active A or B port when one and only one end of the fiber link connects to an M port 3 8 THE DELHF UA CONFIGURATION SCREEN To access the DELHF UA Configuration screen from the DELHF UA Setup screen use the arrow keys to highlight the DELHF UA Configuration menu item and press ENTER The DELHF UA Configuration screen Figure ...

Страница 62: ...g list describes each of the DELHF UA Configuration screen fields SMT Version This field displays the current version of Station Management SMT the DELHF UA is using Device Name DLE32 MA Flash Image Revision XX XX XX Slot Number X BOOTPROM Revision XX XX XX DELHF UA Configuration EXIT RETURN SAVE 209145 SMT Version Treq Tneg Tnotify 2 6 0 ms 0 0 ms 30 sec ...

Страница 63: ...c station description To change the DELHF UA Tnotify period from the default thirty seconds perform the following steps 1 Use the arrow keys to highlight the Tnotify field 2 Enter a value between 2 and 30 3 Use the arrow keys to highlight the SAVE command at the bottom of the screen and press ENTER The DELHF UA now sends NIFs at the new interval SAVE This command saves all configuration changes to...

Страница 64: ...ame DLE32 MA Flash Image Revision XX XX XX Slot Number X BOOTPROM Revision XX XX XX FDDI Full Duplex Configuration Operation Mode Link Status Port Status FDDI PORT A Standard FDDI Link Enabled FDDI PORT B Standard FDDI Link Enabled EXIT RETURN SET OPERATION MODE STANDARD FDDI SAVE DESIRED OPERATION MODE STANDARD FDDI ...

Страница 65: ...connects to the DELHF UA must be a DIGITAL product that supports full duplex FDDI e g another DELHF UA Full duplex FDDI is a point to point link between two devices that support full duplex operation No other stations may be present on the ring If a third station is added the DELHF UA automatically returns to standard FDDI operation There must be two FPIMs installed in the DELHF UA to connect to t...

Страница 66: ...DI and FULL DUPLEX To change the current selection use the arrow keys to highlight the field and press the SPACE bar DESIRED OPERATION MODE This read only field displays the desired operation mode of the DELHF UA In some cases the DELHF UA will not begin operating in full duplex mode immediately This field confirms that changes to the SET OPERATION MODE field have been saved and the DELHF UA is in...

Страница 67: ...he screen then press ENTER The Saved OK message displays indicating that the changes have been saved to memory 3 10 THE FDDI ETHERNET TRANSLATION CONFIGURATION SCREEN To access the FDDI Ethernet Translation Configuration screen from the DELHF UA Setup screen use the arrow keys to highlight the FDDI Ethernet Translation Configuration menu item on the DELHF UA Setup screen and press ENTER The FDDI E...

Страница 68: ...ame types that are available are as follows Ethernet II Ethernet SNAP The default setting for the non Novell FDDI SNAP field is Ethernet II Device Name DCE32 MA Flash Image Revision XX XX XX Slot Number X BOOTPROM Revision XX XX XX FDDI Ethernet Translation Configuration SAVE DEFAULT EXIT RETURN 22701 Translate all non Novell FDDI SNAP Frames to Ethernet II Translate all Ethernet Raw Frames to FDD...

Страница 69: ...hernet frame types that are available are as follows Ethernet II Ethernet SNAP Ethernet 802 3 Ethernet 802 2 The default setting for the Novell FDDI SNAP field is Ethernet II Translate all Novell FDDI 802 2 Frames to This field allows the user to translate all Novell FDDI 802 2 frames to a specific Ethernet frame type The Ethernet frame types that are available are as follows Ethernet II Ethernet ...

Страница 70: ...ng options DISABLED default setting ENABLED If you retain the default setting of DISABLED the DELHF UA only examines 802 3 frames that are the Ethernet minimum 64 bytes in length This allows for optimal switching performance as the DELHF UA assumes all frames over 64 bytes in length contain no padding If this field is set to ENABLED the DELHF UA examines ALL 802 3 frame length fields to determine ...

Страница 71: ...anslation Types to the Default Values To return the frame translations to the default settings perform the following steps 1 Use the arrow keys to highlight the DEFAULT command at the bottom of the screen and press ENTER 2 Use the arrow keys to highlight the SAVE command at the bottom of the screen and press ENTER The Saved OK message appears indicating that the changes have been saved to memory 3...

Страница 72: ...ight the Interpret 802 3 length for frames 64 bytes field 2 Use the SPACE bar to toggle the choices until ENABLED displays 3 Use the arrow keys to highlight the SAVE command located at the bottom of the screen 4 Press ENTER The configuration changes are saved to memory To disable the Interpret 802 3 length for frames 64 bytes field perform the steps above while using the SPACE bar to toggle the op...

Страница 73: ... This chapter describes how to use the LANVIEW LEDs to monitor the DELHF UA status and diagnose DELHF UA problems Figure 4 1 shows the location of the DELHF UA LEDs Figure 4 1 DELHF UA LANVIEW LEDs A B A B P S DELHF UA Port A Port B Primary Ring Secondary Ring Transmit Receive ...

Страница 74: ...f the DELHF UA LED Color Definition Transmit Green Flashing Amber Flashing Off Transmitting Standby No activity Receive Amber Off Receiving No activity Table 4 2 Port A and Port B LED States and Definitions Color Definition Green Valid link to port and port enabled Amber Port disabled via management Off No valid link or no cable attached Red Possible hardware or FDDI ring failure ...

Страница 75: ...ct your DIGITAL representative If the DELHF UA P and S LEDs remain red for several minutes the DELHF UA could have a hardware problem Contact your DIGITAL representative A B P S Definition Green Green Green Off Through A Green Green Off Green Through B Green Off Amber Green Amber Wrap A Off Amber Green Green Amber Wrap B Off Green Green Amber Dual Homed Default Off Green Green Off Dual Homed Modif...

Страница 76: ...e indicates Wrap A the ring has lost the redundancy of the secondary ring due to the wrapped condition This configuration should be repaired as additional problems could isolate stations from the FDDI ring Wrap B The flow of the primary ring is entering through port B secondary in and is wrapped by the DELHF UA causing the ring to exit through port B primary out Port A is disconnected from the rin...

Страница 77: ...he A port of the DELHF UA is connected to the A port of another device It also indicates that the A port has wrapped combining the primary and secondary rings into a single ring This is an undesirable ring condition and should be repaired as some stations could be isolated from the primary ring Twisted Ring B B Wrap B This condition indicates that the B port of the DELHF UA is connected to the B p...

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Страница 79: ...ons Table 5 1 Multimode Transmitter Specifications Multimode Transmitter Optical wavelength 1330 nm typical Optical output 20 0 dBm minimum 14 0 dBm maximum Optical rise time 3 5 ns maximum Optical fall time 3 5 ns maximum Spectral width 140 nm typical Supply current 150 mA maximum Table 5 2 Multimode Receiver Specifications Multimode Receiver Optical wavelength 1330 nm typical Optical input avg s...

Страница 80: ...eresis 1 5 dB minimum Table 5 4 Single Mode Transmitter Specifications Single Mode Transmitter Optical wavelength 1330 nm typical Optical output 20 0 dBm minimum 14 0 dBm maximum Optical rise time 3 5 ns maximum Optical fall time 3 5 ns maximum Spectral width 150 nm maximum Supply current 150 mA maximum Table 5 5 Single Mode Receiver Specifications Single Mode Receiver Optical wavelength 1330 nm t...

Страница 81: ...eiver Signal Detect Specifications Single Mode Receiver Signal Detect Assert power 33 0 dBm typical 31 0 dBm maximum Assert time 10 µs typical 100 µs maximum Deassert power 36 0 dBm typical 45 0 dBm minimum Deassert time 10 µs typical 350 µs maximum Hysteresis 1 5 dB minimum ...

Страница 82: ...tter Amplitude 1 080 Vpk maximum 0 920 Vpk minimum Rise time 2 ns minimum 4 ns maximum Fall time 2 ns minimum 4 ns maximum Rise Fall variation 0 5 ns maximum Overshoot 5 maximum Droop 14 symbols 3 maximum Table 5 8 UTP Receiver Signal Detect UTP Receiver Signal Detect Assert time 10 µs typical 100 µs maximum Deassert time 10 µs typical 350 µs maximum ...

Страница 83: ...ecifications STP Transmitter Amplitude 1 285 Vpk maximum 1 165 Vpk minimum Rise time 3 ns minimum 5 ns maximum Fall time 3 ns minimum 5 ns maximum Rise Fall variation 0 5 ns maximum Overshoot 5 maximum Table 5 10 STP Receiver Signal Detect Specifications STP Receiver Signal Detect Assert time 10 µs typical 100 µs maximum Deassert time 10 µs typical 350 µs maximum ...

Страница 84: ...cal Single Mode Fiber Core diameter 8 7 µm 0 5 µm Cladding diameter 127 0 µm maximum Cable attenuation ð 0 5 dB km typical 5 4 1 Multimode Fiber Optic Cable Length The PMD FDDI standard specifies the following Maximum total cable length 100 km 62 miles dual ring 200 km 124 miles wrapped Maximum multimode cable length between adjacent nodes 2 km 1 2 miles 5 4 2 Single Mode Fiber Optic Cable Length ...

Страница 85: ...acent nodes 100 m 328 1 feet 5 5 TWISTED PAIR PINOUT CONFIGURATION This section provides the RJ45 pinout configuration for Unshielded Twisted Pair UTP and Shielded Twisted Pair STP Physical Layer Medium Dependent PMD ports Figure 5 1 RJ45 TP PMD Port When connecting two twisted pair ports together a transmit and receive cross over must occur between the two devices within the cable 1 Transmit 2 Tr...

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Страница 87: ...isted in Table A 1 The link distance is up to 2 kilometers on the multimode fiber optic cable as specified by ANSI MMF PMD Figure A 1 The DEL00 UI and DEL01 UI Table A 1 DEL00 UI and DEL01 UI Specifications Parameter Typical Value Worst Case Worst Case Budget Typical Budget Receive Sensitivity 30 5 dBm 28 0 dBm NA NA Peak Input Power 7 6 dBm 8 2 dBm NA NA 50 125 µm fiber 13 0 dBm 15 0 dBm 13 0 dB ...

Страница 88: ...pporting an Unshielded Twisted Pair UTP connection The pinouts are listed in Figure A 2 Figure A 2 DEL02 UI Pinouts The link distance is up to100 meters on unshielded twisted pair cable as specified by ANSI TP PMD Figure A 3 The DEL02 UI 1 Transmit 2 Transmit 3 N A 4 N A 5 N A 6 N A 7 Receive 8 Receive 1 2 3 4 5 6 7 8 DEL02 UI ...

Страница 89: ...tance is up to 40 kilometers maximum and 25 kilometers typical on single mode fiber optic cable as specified by ANSI SMF PMD Figure A 4 The DEL05 UI Table A 2 DEL05 UI Specifications Parameter Typical Value Minimum Maximum Transmitter Peak Wave Length 1300 nm 1270 nm 1330 nm Spectral Width 60 nm 100 nm Rise Time 3 0 ns 2 7 ns 5 0 ns Fall Time 2 5 ns 2 2 ns 5 0 ns Duty Cycle 50 1 49 6 50 7 Bit Erro...

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Страница 92: ...9032632 Printed in U S A ...

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