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Chapter 2: Connecting to the Network

Page 2-14

FDDI Dual-Attached Intelligent Module User’s Guide

4. Attach the MIC B plug on the other end of the first cable to the MIC B

receptacle on the first DAS.

5. Attach the MIC B plug on the end of the second cable assembly to the

MIC B receptacle on the OBS (Figure 2-9).

6. Attach the MIC A plug on the other end of the second cable to the MIC

A receptacle on the second DAS.

7. Check the LEDs. In this configuration the RING A RX, TX and THRU

LEDs will be on.

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Summary of Contents for 3F00-01

Page 1: ...USER S GUIDE OFFLINE PWR RING A RING B THRU WRAP RX PROC FDDI MIC A FDDI MIC B OPTICAL BYPASS 3F00 01 MULTI MODE MULTI MODE TX SN OFFLINE PWR RING A RING B THRU WRAP RX PROC FDDI MIC A FDDI MIC B OPTICAL BYPASS 3F55 01 SINGLE MODE SINGLE MODE TX SN 9031876 02 ...

Page 2: ......

Page 3: ...duct names mentioned in this manual may be trademarks or registered trademarks of their respective companies FCC NOTICE This device complies with Part 15 of the FCC rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation NOTE This equ...

Page 4: ... If this equipment is used in a domestic environment radio disturbance may arise When such trouble occurs the user may be required to take corrective actions CABLETRON SYSTEMS INC PROGRAM LICENSE AGREEMENT IMPORTANT Before utilizing this product carefully read this License Agreement This document is an agreement between you the end user and Cabletron Systems Inc Cabletron that sets forth your righ...

Page 5: ...UENTIAL DAMAGES IN NO EVENT SHALL CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING WITHOUT LIMITATION DAMAGES FOR LOSS OF BUSINESS PROFITS BUSINESS INTERRUPTION LOSS OF BUSINESS INFORMATION SPECIAL INCIDENTAL CONSEQUENTIAL OR RELIANCE DAMAGES OR OTHER LOSS ARISING OUT OF THE USE OR INABILITY TO USE THIS CABLETRON PRODUCT EVEN IF CABLETRON HAS BEEN ADVISED OF THE POSSIBILIT...

Page 6: ...3 23 EEC EN 55022 EN 50082 1 EN 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 ___________________________________ _______...

Page 7: ...al Bypass Switch 2 5 2 2 LED Power up Sequence 2 5 2 2 1 3F00 01 LED Sequence 2 6 2 2 2 3F55 01 LED Sequence 2 7 2 3 Keying of Media Interface Connectors 2 8 2 3 1 A and B Keying 2 9 2 3 2 M and S Keying 2 10 2 4 Connecting the 3F00 01 or 3F55 01 to the Network 2 10 2 4 1 Pre connection Information 2 10 2 4 2 Connecting Dual attached Stations 2 11 2 4 3 Connecting Dual homed Single attached Statio...

Page 8: ... 2 3 2 SMT Version 7 3 4 9 4 2 4 3F00 01 3F55 01 Port MAC Status 4 11 4 2 4 1 SMT Version 6 2 4 11 4 2 4 2 SMT Version 7 3 4 13 4 2 5 3F00 01 3F55 01 Port PHY Status 4 16 4 2 5 1 SMT Version 6 2 4 16 4 2 5 2 SMT Version 7 3 4 17 4 2 6 3F00 01 3F55 01 PATH Group 4 18 CHAPTER 5 DIAGNOSTICS AND TROUBLESHOOTING 5 1 Power up Tests 5 1 5 2 Operational Diagnostics 5 3 5 2 1 Troubleshooting 5 3 5 2 2 Conn...

Page 9: ...nt Module User s Guide vii A 5 Optical A 2 A 6 Interface A 2 A 7 Status LEDs A 2 A 8 Connectors A 2 A 9 Max Power Requirements A 2 A 10 Physical A 2 A 11 Environmental A 3 APPENDIX B CABLING INFORMATION B 1 Cables and Connectors B 1 INDEX ...

Page 10: ...Contents viii FDDI Dual Attached Intelligent Module User s Guide ...

Page 11: ...es how to physically attach the module to a network Chapter 3 Configuring the 3F00 01 and 3F55 01 discusses the software configuration options for the module Chapter 4 Monitoring and Managing the 3F00 01 and 3F55 01 provides information on the statistics and traffic analysis available for the module Chapter 5 Diagnostics and Troubleshooting discusses detecting problems with the module and how to s...

Page 12: ...ne application with the ATX linking independent workgroups on Ethernet and Token Ring LANs to a high performance FDDI backbone Figure 1 1 Typical Network Configuration The 3F00 01 uses standard multimode fiber The 3F55 01 uses single mode fiber for extended distance capability The extended distance capability for single mode fiber is dependent upon how you want to allocate your power budget The 3F...

Page 13: ...atus aid in troubleshooting and diagnostics 1 2 STANDARDS The 3F00 01 and 3F55 01 comply with the following standards ANSI X3T9 5 PMD PHY MAC and SMT IEEE 802 1d and 802 1i 1 3 CONNECTORS The 3F00 01 and 3F55 01 each have three connectors that are shown in Figure 1 2 and Figure 1 3 Two Media Interface Connector MIC receptacles an A port and a B port One RJ 11 modular jack for connecting an optiona...

Page 14: ...ontains 8 green LEDs Processor status PROC Power OK PWR Receive activity RX Transmit activity TX Thru mode one per primary and secondary ring WRAP Wrap mode one per primary and secondary ring THRU 1 5 DOCUMENT CONVENTIONS The following conventions are used in presenting information in this manual LCM commands prompts and information displayed by the computer appear in Courier typeface Current Numb...

Page 15: ... with your ATX or cause data to be lost Warning A warning means you could cause physical harm to yourself Follow the guidelines in the manual or on the unit itself when handling electrical equipment 1 6 RELATED DOCUMENTATION You may need to refer to the following documentation when you are using your ATX ATX User Guide contains installation and configuration instructions for the ATX ATX MIB Refere...

Page 16: ...rebooting the unit etc The serial and revision numbers of all involved Cabletron Systems 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 Any previous Return Material Authorization RMA numbers Phone 603 332 940...

Page 17: ...ack power up and check your ATX before continuing with this chapter Instructions for installing or swapping an 3F00 01 or 3F55 01 are included in Chapter 6 Adding Swapping Modules 2 1 CONFIGURATION OPTIONS Both the 3F00 01 and the 3F55 01 permit the ATX to attach to the FDDI ring as a dual attached station using either multimode 3F00 01 or single mode 3F55 01 fiber respectively They both can also ...

Page 18: ...ith a 3F00 01 installed connected as a DAS to two other DASs in an FDDI network A and B indicate A port and B port When DAS devices are connected on an FDDI ring A ports must be connected to B ports and B ports must be connected to A ports Figure 2 1 Dual attached Configuration P O W E R S T A T U S E N G IN E S T A T U S T U R B O S T A T U S S U P P L Y A S U P P L Y B 1 6 G b p s R E S E T PACK...

Page 19: ...lled connected to the master ports of two DACs Figure 2 2 Dual homed Single attached Configuration In this configuration the ATX accesses the FDDI ring through port B and DAC 2 FDDI standards for DASs such as the ATX state that if the B port cannot be used the device will automatically use its A port Therefore if DAC 2 fails the ATX is still connected to the ring through port A DAC 1 P O W E R S T...

Page 20: ...stalled configured as an SAS connected to a master port of a dual attached concentrator DAC on the main FDDI ring Figure 2 3 Single attached Configuration P O W E R S T A T U S E N G I N E S T A T U S T U R B O S T A T U S S U P P L Y A S U P P L Y B 1 6 G b p s R E S E T PACKET PROCESSING ENGINE NMS PORT POWER FastNET ATX T X FDDI MIC A FDDI MIC B OPTICAL BYPASS RING A RING B T H R U W R A P R X ...

Page 21: ...apping automatic reconfiguration to isolate a fault and ring re initialization In addition an OBS makes it possible to disconnect the ATX from the network without disrupting the FDDI rings 2 2 LED POWER UP SEQUENCE Before connecting the 3F00 01 or 3F55 01 to the network power on the ATX and observe the automatic power up diagnostics sequence of the front panel LEDs to check for proper operation Re...

Page 22: ...nostics are being run on the 3F00 01 3 The TX and RX LEDs flash 4 The STATUS LED goes off while diagnostics are running on the other modules in the ATX 5 The STATUS LED lights again when the 3F00 01 software initializes and remains on 6 The RING A and RING B RX TX THRU and WRAP LEDs remain off until the module is connected to the network Note RING A refers to the primary FDDI ring and RING B to th...

Page 23: ...ts while power up diagnostics are being run on the 3F55 01 3 The WRAP LED for Ring A lights briefly 4 The TX and RX LEDs flash 5 The PROC LED lights again when the 3F55 01 software initializes and remains on 6 The RING A and RING B RX TX THRU and WRAP LEDs remain off until the module is connected to the network Note RING A refers to the primary FDDI ring and RING B to the secondary FDDI ring These...

Page 24: ...ts are used to identify the MIC plugs and receptacles of the same type The MIC key slot must be the correct type for the MIC receptacle A B M or S and must be properly aligned or you will not be able to connect the MIC The key slot may be permanently molded into the MIC although many vendors supply one MIC that can be alternately keyed as an A B M or S connector Several MIC vendors provide an atta...

Page 25: ...tacle an A key slot is to the left of the horizontal center of the MIC and a B key slot is to the right of the MIC center The arrows indicate how the plug mates to the receptacle Note If you are making a fiber cable assembly to connect FDDI DAS devices the MIC plug on one end must be keyed as a MIC A and the MIC plug on the other end must be keyed as a MIC B This will help ensure that devices are ...

Page 26: ...med single attached station or single attached station Use the appropriate 3F00 01 or 3F55 01 either the multimode version or single mode version depending on the type of fiber used for the network 2 4 1 Pre connection Information Check that MICs are correctly keyed as A and B MICs for connecting DAS ports If MICs are keyed incorrectly the FDDI network may continue to function but the incorrectly ...

Page 27: ... connected to A ports 1 Attach the MIC A plug on the end of one cable assembly to the receptacle labeled FDDI MIC A on the module front panel Figure 2 8 2 Attach the MIC B plug on the other end to the MIC B receptacle on the first DAS 3 Attach the MIC B plug on the end of the second cable assembly to the receptacle labeled FDDI MIC B on the module front panel Figure 2 8 4 Attach the MIC A plug on ...

Page 28: ...y to the receptacle labeled FDDI MIC B on the module front panel Figure 2 8 4 Attach the MIC M plug on the other end of the second cable to the master port MIC M receptacle on the second DAC 5 Check the LEDs In this configuration the RING B RX TX and WRAP LEDs will be on 2 4 4 Connecting Single attached Stations The cable assembly consists of one fiber cable with a MIC B plug on one end and a MIC ...

Page 29: ... need two cable assemblies consisting of a fiber cable appropriate to the type of cabling you are using either multimode or single mode with a MIC A plug on one end and a MIC B plug on the other end to connect the OBS to the ring Figure 2 9 Connecting the Optical Bypass Switch 1 Attach the MIC A and MIC B plugs on the OBS to the receptacles labeled FDDI MIC A and FDDI MIC B respectively on the mod...

Page 30: ...first cable to the MIC B receptacle on the first DAS 5 Attach the MIC B plug on the end of the second cable assembly to the MIC B receptacle on the OBS Figure 2 9 6 Attach the MIC A plug on the other end of the second cable to the MIC A receptacle on the second DAS 7 Check the LEDs In this configuration the RING A RX TX and THRU LEDs will be on ...

Page 31: ...ork management software module for HP s OpenView EliteView NV an SNMP based network management software module for IBM s NetView 6000 network management systems Any SNMP based network management system For more details about LCM see your ATX User Guide For details about the other network management software refer to the product s documentation 3 1 CONFIGURATION Refer to the ATX User Guide for the ...

Page 32: ...from 255 to 65 025 snmpFddiMACFrameCts The MAC s Frame_Ct corresponds to ANSI fddiMAC 71 Any attempt to write this parameter will cause the MAC s Frame_Ct Error_Ct and Lost_Ct to be zeroed snmpFddiMACErrorCts The MAC s Error_ Ct corresponds to ANSI fddiMAC 81 Any attempt to write this parameter will cause the MAC s Frame_Ct Error_Ct and Lost_Ct to be zeroed snmpFddiMACFrameErrorThreshold Value for...

Page 33: ...at should as closely as possible match the number of frames addressed to A bit set and successfully copied into the station s receive buffers C bit set by this MAC corresponds to ANSI fddiMAC 72 refer to ANSI MAC 7 5 Note that this count does not include MAC frames Any attempt to write this parameter will cause the MAC s Frame_Ct Copied_Ct Transmit_Ct Error_Ct and Lost_Ct to be zeroed fddimibMACTr...

Page 34: ... always 0 fddimibMACRequestedPaths List of permitted paths which specifies the path s into which the MAC may be inserted corresponds toANSI fddiMAC 32 refer to ANSI SMT 9 7 Only default setting as defined in SMT 9 7 is supported fddimibPORTConnectionPolicies A value representing the port s connection policies desired in the node corresponds to none the second octet to tree and the third octet to p...

Page 35: ...tion EliteView UX an SNMP based network management system EliteView OV an SNMP based network management software module for HP s OpenView EliteView NV an SNMP based network management software module for IBM s NetView 6000 network management systems Any SNMP based network management system This chapter describes some basic monitoring functions you can perform using LCM and additional information y...

Page 36: ...rt Status To display the status of a 3F00 01 or 3F55 01 port using LCM at the LCM prompt type ATX status port number The port number is determined by counting from the first port on the top most module in the ATX which is the Packet Processing Engine PPE The status of a 3F00 01 or 3F55 01 port includes Type There are six possible values for the module type two for the 3F00 01 and four for the 3F55...

Page 37: ...ate Learning The port is listening for other bridges on the network and making a table of addresses from packets it has received Once the port goes to the forwarding state it can then use the address information it has learned Forwarding The port is the designated port for the LAN and is forwarding packets and sending out bridge protocol packets Broken The port is not forwarding packets Reasons in...

Page 38: ...g breaks If the two FDDI cables have been incorrectly connected Twisted will be displayed as the port status Note All counter values are reset to zeros if the ATX is rebooted or if the module housing that port is halted and restarted 4 2 STATISTICS The ATX collects statistics applicable to I O modules and ports and stores them in the following MIBs the portion of MIB 2 the bridge MIB the FDDI MIB ...

Page 39: ...uting its operational software hwInuse The manufacturing information for this module which includes part number hardware revision level and serial number hwManufData 4 2 2 Port Status and Statistics The status and statistics described in this section are applicable to any port 4 2 2 1 General Port Status and Statistics The time in centi seconds hundredth of a second the port entered its last state...

Page 40: ... non unicast packets received by the port ifInUcastPkts ifInNUcastPkts The total number of bytes received on the port counting the MAC header and FCS but not counting the bytes in packets that were rejected due to hardware errors All counters are 32 bit wide wrap around counters which can only be reset by rebooting the ATX ifInOctets The number of packets transmitted by the port may be obtained by...

Page 41: ... sifTxPackets viewed as a 5 entry array of 4 bytes each indexed by DEST_MULTI 4 2 2 4 Port Error Status and Statistics A list of up to 16 MAC addresses the source addresses of the last 16 packets that were not sent due to packet size limitations sifTxAddr Number of received packets discarded due to size errors sifRxSizeErrors Number of received packets discarded due to FCS errors sifRxHwFCS Number...

Page 42: ...RbcErrCnt 4 2 3 3F00 01 3F55 01 Port SMT Status Station management SMT refers to the entity within a station on an FDDI ring that monitors and controls station activity Version 2 4 of the ATX system software supports SMT version 7 3 Versions of ATX system software prior to 2 4 support SMT version 6 2 In the sections that follow the SMT version 6 2 MIB variables are presented first followed by the ...

Page 43: ... timer in seconds snmpFddiSMTNotify Whether the port supports the SRF protocol This is always true 1 snmpFddiSMTStatusReporting The current state of the port s ECM state machine snmpFddiSMTECMState The current state of the port s CFM state machine snmpFddiSMTCFState The current state of the port s Hold function This is always not implemented 1 snmpFddiSMTHoldState Whether the port has been intenti...

Page 44: ...at indicates the path types available in the station fddimibSMTAvailablePaths A value that indicates the configuration capabilities of a node fddimibSMTConfigCapabilities A value that indicates the configuration policies currently desired in a node fddimibSMTConfigPolicy The connection restrictions that are currently being enforced by the port fddimibSMTConnectionPolicy The timer expressed in seco...

Page 45: ...tationAction 4 2 4 3F00 01 3F55 01 Port MAC Status Media Access Control MAC is the data link layer sublayer responsible for scheduling transmitting and receiving data on a shared medium local area network Versions of system software prior to 2 4 support SMT version 6 2 In the sections that follow the SMT version 6 2 MIB variables are presented first followed by the SMT version 7 3 versions 4 2 4 1...

Page 46: ...iMACCurrentPath The MAC address of this MAC s upstream neighbor snmpFddiMACUpstreamNbr Whether the upstream neighbor is a Station or a Concentrator snmpsmtUpstreamDescriptor The topology state of this station on the ring which may be one or more of the following snmpsmtUpstreamState Topology Station is wrapped Station is an unrooted concentrator Station is in a twisted ring Station is a rooted sta...

Page 47: ...snmpFddiMACTMin The current usage of the station s bridge end station capabilities This is always FSC Type0 1 snmpFddiMACCurrentFrameStatus The MAC s Frame_Ct snmpFddiMACFrameCt The MAC s Error_Ct snmpFddiMACLostCt The MAC s Lost_Ct snmpFddiMACLostCt The current state of the MAC s RMT state machine snmpFddiMACRMTState The current value of the MAC s RMT DA_Flag snmpFddiMACDAFlag Whether a MAC Frame...

Page 48: ...bMACDownstreamNbr The previous value of the MAC s upstream neighbor s long individual MAC address fddimibMACO1dUpstreamNbr The previous value of the MAC s downstream neighbor s long individual MAC address fddimibMACO1dDownstreamNbr The Duplicate Address Test flag Dup_Addr_Test fddimibMACDupAddressTest List of permitted paths which specifies the path s into which the MAC may be inserted fddimibMACR...

Page 49: ... error during frame reception such that the frame was stripped fddimibMACLostCts A threshold 0 65536 for determining when a MAC Condition report shall be generated fddimibMACFrameErrorThreshold The actual frame error ratio corresponds to ANSI fddiMAC 96 fddimibMACFrameErrorRatio Indicates the current state of the RMT State Machine fddimibMACRMTState The RMT flag Duplicate Address Flag DA_Flag fddi...

Page 50: ...e value of I_Max snmpFddiATTACHMENTIMaxExpiration This is always 125 000 which corresponds to 10 milliseconds The following status information is available for each of the two PHYs of the FDDI port Indicates the PHY s PC_Type snmpFddiPORTPCType Indicates the PC_Type of the PHY s neighbor snmpFddiPORTPCNeighbor Indicates the PHY s signaling snmpFddiPORTConnectionPolicies Indicates the PHY s receive...

Page 51: ...e PORT s PC_Type fddimibPORTMyType The type of the remote PORT as determined in PCM fddimibPORTNeighborType A value representing the PORT s connection policies desired in the node fddimibPORTConnectionPolicies The indications T_Val 9 R_Val 9 in PC Signalling of the intent to place a MAC in the output token path to a PORT fddimibPORTIndicated Indicates the Path s into which this PORT is currently i...

Page 52: ...fddimibPORTLerCutoff The link error rate estimate at which a link connection will generate an alarm fddimibPORTLerAlarm An indication of the connect state of this PORT which is equal to the value of Connect_State fddimibPORTConnectState The state of this PORT s PCM state machine fddimibPORTPCMState The value of PC_Withhold fddimibPORTPCWithhold The condition becomes active when the value of fddiPO...

Page 53: ...ational attributes for a PATH configuration entry fddimibPATHConfigEntry The value of the SMT index associated with this configuration entry fddimibPATHConfigSMTIndex The value of the PATH resource index associated with this configuration entry fddimibPATHConfigPATHIndex An object associated with Token order for this entry fddimibPATHConfigTokenOrder The type of resource associated with this confi...

Page 54: ...Chapter 4 Monitoring and Managing the 3F00 01 and 3F55 01 Page 4 20 FDDI Dual Attached Intelligent Module User s Guide ...

Page 55: ...e modules is tested in order from top to bottom of the ATX LEDs on the front panel indicate progress of the power up diagnostics sequence and the status of each module as determined by the power up diagnostics The 3F00 01 and 3F55 01 LED power up sequence is described in detail in Chapter 2 Connecting to the Network When the power up diagnostics are completed this takes between 1 and 2 minutes aft...

Page 56: ...ing is twisted STATUS On 3F00 01 hardware is ready for operation port may or may not be enabled controlled by software POWER On 3F00 01 hardware is receiving power RX Flashing Port is receiving data TX Flashing Port is transmitting data Table 5 2 Meaning of 3F55 01 LEDs LED Meaning THRU On Ring A or B as indicated by LED label is in through mode Flashing Ring is twisted WRAP On Ring A or B as indi...

Page 57: ...etwork The ATX generates loopback packets which are sent out of the port to a particular destination device on the port s network The destination device echoes the packet back onto the network and the originating port receives the packet For both types of tests normal operation is indicated when generated packets are received back after looping without errors For remote loopback tests the ATX crea...

Page 58: ... 2 Check the status of the 3F00 01 3F55 01 port using LCM The status can be either Wrapped indicates breaks in the ring Twisted indicates that the two FDDI cables have been incorrectly connected 3 Check that the MICs are keyed correctly See Chapter 2 Connecting to the Network for information about MICs 4 Check for loose port connections 5 Check to make sure the front panel screws are tight so that...

Page 59: ...in any slot and you can install multiple modules in an ATX 6 1 UNPACKING THE SWITCH MODULE Unpack the 3F00 01 or 3F55 01 carefully handling it by the edges only and inspect it for possible damage If any damage is evident contact Cabletron Systems Global Call Center Save the original container and antistatic wrap in case the module needs to be repaired 6 2 ADDING A 3F00 01 OR 3F55 01 If the module ...

Page 60: ... check the switch module LED power on sequence as described in Chapter 2 Connecting to the Network 8 Make the connections to the network as described in Chapter 2 6 3 SWAPPING A 3F00 01 OR 3F55 01 When swapping identical modules it is recommended that you remove power to the ATX However the 3F00 01 or 3F55 01 you are replacing must be taken offline first as described below Caution Do not remove an...

Page 61: ...he back of the module with the backplane at the rear of the ATX chassis 7 Tighten the screws on each side of the module s front panel 8 If you took the original module offline by pressing the OFFLINE button the new module will automatically come back online when it is inserted in the slot If you used the Local Console Manager offline command to take the original module offline you must use the onl...

Page 62: ...Chapter 6 Adding Swapping Modules Page 6 4 FDDI Dual Attached Intelligent Module User s Guide ...

Page 63: ...NDARDS COMPLIANCE Protocols ANSI X3T9 5 PMD X3T9 5 MAC X3T9 5 SMT v6 2 SMT v7 3 IEEE 802 2 802 1d 802 1i A 3 CERTIFICATIONS Safety UL 1950 CSA C22 2 No 950 EN 60950 and IEC 950 Emission FCC Part 15 Class A EN 55022 Class A and VCCI Class I Immunity EN 50082 1 A 4 FIBER CABLE Multimode 62 5 125 µm Single Mode 10 125 µm ...

Page 64: ...ity Transmit activity Ring activity one per primary and secondary ring Thru mode one per primary and secondary ring Wrap mode one per primary and secondary ring A 8 CONNECTORS FDDI 3F00 01 Dual Multimode MIC Receptacles 3F55 01 Dual Single Mode MIC Receptacles Optical Bypass Switch RJ 11 modular jack A 9 MAX POWER REQUIREMENTS 3F00 01 30 watts 3F55 01 30 watts A 10 PHYSICAL Size 12 2 in x 9 5 in 3...

Page 65: ...Specifications FDDI Dual Attached Intelligent User s Guide Page A 3 A 11 ENVIRONMENTAL Operating Temperature 5 C to 40 C 41 F to 104 F Storage Temperature 30 C to 90 C 22 F to 194 F Relative humidity 5 to 95 non condensing ...

Page 66: ...Appendix A Technical Specifications Page A 4 FDDI Dual Attached Intelligent User s Guide ...

Page 67: ...witch OBS uses an RJ 11 connector an AMP 6 pin shielded modular plug for the OBS is recommended Pinouts for the connector at the end of the OBS cable are provided in Table B 1 below Figure B 1 Pin Positions for OBS Cable Table B 1 OBS Connector Pin Assignments RJ 11 Pin Assignment 1 5 Secondary Switch 2 5 Primary Switch 3 Ground Primary Switch 4 Ground Secondary Switch 5 Common to Pin 6 6 Common t...

Page 68: ...Appendix B Cabling Information Page B 2 FDDI Dual Attached Intelligent Module User Guide ...

Page 69: ...station 2 12 optical bypass switch 2 13 single attached station 2 12 D diagnostic tests power up 5 1 diagnostics tests operational 5 3 displaying modual status 4 2 port statistics 4 2 port status 4 2 dual attached station about 2 2 dual homed single attached station about 2 3 connecting 2 12 K keying media interface connectors 2 8 L LEDs meaning 3F00 01 5 2 3F55 01 5 2 power up sequence 3F00 01 2 ...

Page 70: ...Index Index 2 FDDI Dual Attached Intelligent Module User Guide P pinouts optical bypass switch B 1 port status 4 5 power up tests 5 1 U unpacking 6 1 ...

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