Avaya BN Routers User Manual

Page 1
Installing and Maintaining
BN Platforms
Part No. 109352-E Rev. A
December 1996
Page 2
4401 Great America Parkway 8 Federal Street Santa Clara, CA 95054 Billerica, MA 01821

Copyright © 1988–1996 Bay Networks, Inc.

All rights reserved. Printed in the USA. December 1996. The information in this document is subject to change without notice. The statements, configurations, technical data, and
recommendations in this document are believed to be accurate and reliable, but are presented without express or implied warranty. Users must take full responsibility for their applications of any products specified in this document. The information in this document is proprietary to Bay Networks, Inc.
The software described in this document is furnished under a license agreement and may only be used in accordance with the terms of that license. A summary of the Software License is included in this document.

Restricted Rights Legend

Use, duplication, or disclosure by the United States Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013.

Notice for All Other Executive Agencies

Notwithstanding any other license agreement that may pertain to, or accompany the delivery of, this computer software, the rights of the United States Government regarding its use, reproduction, and disclosure are as set forth in the Commercial Computer Software-Restricted Rights clause at FAR 52.227-19.

Trademarks of Bay Networks, Inc.

ACE, AFN, BCN, BLN, BN, CN, FRE, LN, Optivity, SynOptics, SynOptics Communications, Wellfleet and the Wellfleet logo are registered trademarks and AN, ANH, ASN, BaySIS, BayStack, BCNX, BLNX, BNX, EZ Internetwork, EZ LAN, FN, PathMan, PhonePlus, PPX, Quick2Config, RouterMan, SPEX, Bay Networks, Bay Networks Press, the Bay Networks logo and the SynOptics logo are trademarks of Bay Networks, Inc.

Third-Party T rademarks

All other trademarks and registered trademarks are the property of their respective owners.

Statement of Conditions

In the interest of improving internal design, operational function, and/or reliability, Bay Networks, Inc. reserves the right to make changes to the products described in this document without notice.
Bay Networks, Inc. does not assume any liability that may occur due to the use or application of the product(s) or circuit layout(s) described herein.
Portions of the code in this software product are Copyright © 1988, Regents of the University of California. All rights reserved. Redistribution and use in source and binary forms of such portions are permitted, provided that the abov e copyright notice and this paragraph are duplicated in all such forms and that any documentation, advertising materials, and other materials related to such distribution and use acknowledge that such portions of the software were developed by the University of California, Berkeley. The name of the University may not be used to endorse or promote products deri v ed from such portions of the software without specific prior written permission.
SUCH PORTIONS OF THE SOFTWARE ARE PROVIDED “AS IS” AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
In addition, the program and information contained herein are licensed only pursuant to a license agreement that contains restrictions on use and disclosure (that may incorporate by reference certain limitations and notices imposed by third parties).
Page 3
USA Requirements Only
Federal Communications Commission (FCC) Compliance Notice: Radio Frequency Notice
This equipment generates, uses, and can radiate radio-frequency energy. If you do not install and use this equipment according to the instruction manual, this product may interfere with radio communications. This product has been tested and found to comply with the limits for a Class A computing device, pursuant to Subpart J of Part 15 of 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. Operating this equipment in a residential area is likely to interfere with radio communications; in which case, the user, at his/her own expense, must correct the interference.
Shielded-compliant cables must be used with this unit to ensure compliance with the Class A limits.
EN 55 022 Declaration of Conformance
This is to certify that the Bay Networks products in this book are shielded against the generation of radio interference in accordance with the application of Council Directive 89/336/EEC, Article 4a. Conformity is declared by the application of EN 55 022:1987 Class A (CISPR 22:1985/BS 6527:1988).
EN 55 022 Declaration of Conformance
This is to certify that the Bay Networks products in this book are shielded against the generation of radio interference in accordance with the application of Council Directive 89/336/EEC, Article 4a. Conformity is declared by the application of EN 55 022:1987 Class B (CISPR 22:1985/BS 6527:1988).
4401 Great America Parkway, Santa Clara, CA 95054
8 Federal Street, Billerica, MA 01821
Bay Networks, Inc.
Page 4
Japan/Nippon Requirements Only
Voluntary Control Council for Interference (VCCI) Statement
Voluntary Control Council for Interference (VCCI) Statement
This equipment is in the 1st category (information equipment to be used in commercial and/or industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference by Data Processing Equipment and Electronic Office Machines that are aimed at preventing radio interference in commercial and/or industrial areas.
Consequently, when this equipment is used in a residential area or in an adjacent area thereto, radio interference may be caused to equipment such as radios and TV receivers.
Compliance with the applicable regulations is dependent upon the use of shielded cables. The user is responsible for procuring the appropriate cables. Read instructions for correct handling.
4401 Great America Parkway, Santa Clara, CA 95054
8 Federal Street, Billerica, MA 01821
Bay Networks, Inc.
Page 5
Canada Requirements Only
Canada CS-03 Rules and Regulations
Note:
The Canadian Department of Communications label identifies certified equipment. The certification means that the equipment meets certain telecommunications network protective operations and safety requirements. The Department does not guarantee the equipment will operate to the user's satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local telecommunications company. The equipment must also be installed using an acceptable method of connection. In some cases, the company's inside wiring associated with a single line individual service may be extended by means of a certified connector assembly (telephone extension cord). The customer should be aware that compliance with the above conditions may not prevent the degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations made by the user to this equipment orequipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the power utility, telephone lines and internal metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas.
Caution:
inspection authority, or electrician, as appropriate.
Canada CS-03 — Règles et règlements
Note:
qu’il respecte certaines exigences de sécurité et de fonctionnement visant les réseaux de télécommunications.Le ministère ne garantit pas que l’appareillage fonctionnera à la satisfaction de l’utilisateur.
Avant d’installer l’appareillage, s’assurer qu’il peut être branché aux installations du service de télécommunications local. L’appareillage doit aussi être raccordé selon des méthodes acceptées. Dans certains cas, le câblage interne du service de télécommunications utilisé pour une ligne individuelle peut être allongé au moyen d’un connecteur certifié (prolongateur téléphonique). Le client doit toutefois prendre note qu’une telle installation n’assure pas un service parfait en tout temps.
Les réparations de l’appareillage certifié devraient être confiées à un service d’entretien canadien désigné par le fournisseur. En cas de réparation ou de modification effectuées par l’utilisateur ou de mauvais fonctionnement de l’appareillage, le service de télécommunications peut demander le débranchment de l’appareillage.
Pour leur propre sécurité, les utilisateurs devraient s’assurer que les mises à la terre des lignes de distribution d’électricité, des lignes téléphoniques et de la tuyauterie métallique interne sont raccordées ensemble. Cette mesure de sécurité est particulièrement importante en milieu rural.
Attention:
aux pouvoirs de réglementation en cause ou à un électricien, selon le cas.
Users should not attempt to make such connections themselves, but should contact the appropriate electric
L’étiquette du ministère des Communications du Canada indique que l’appareillage est certifié, c’est-à-dire
Les utilisateurs ne doivent pas procéder à ces raccordements eux-mêmes mais doivent plutôt faire appel
4401 Great America Parkway, Santa Clara, CA 95054
8 Federal Street, Billerica, MA 01821
Bay Networks, Inc.
Page 6
Canada Requirements Only
(continued)
D. O. C. Explanatory Notes: Equipment Attachment Limitations
The Canadian Department of Communications label identifies certified equipment. This certification meets certain telecommunication network protective, operational and safety requirements. The department does not guarantee the equipment will operate to the users satisfaction.
Before installing the equipment, users should ensure that it is permissible to be connected to the facilities of the local telecommunications company. The equipment must also be installed using an acceptable method of connection. In some cases, the company’s inside wiring associated with a single line indi vidual service may be e xtended by means of a certified connector assembly (telephone extension cord). The customer should be aware that compliance with the above condition may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the power utility, telephone lines and internal metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas.
Caution:
inspection authority, or electrician, as appropriate.
Users should not attempt to make such connections themselves, but should contact the appropriate electrical
Notes explicatives du ministère des Communications: limites visant les accessoires
L’étiquette du ministère des Communications du Canada indique que l’appareillage est certifié, c’est-à-dire qu’il respecte certaines exigences de sécurité et de fonctionnement visant les réseaux de télécommunications. Le ministère ne garantit pas que l’appareillage fonctionnera à la satisfaction de l’utilisateur.
Avant d’installer l’appareillage, s’assurer qu’il peut être branché aux installations du service de télécommunications local. L’appareillage doit aussi être raccordé selon des méthodes acceptées. Dans certains cas, le câblage interne du service de télécommunications utilisé pour une ligne individuelle peut être allongé au moyen d’un connecteur certifié (prolongateur téléphonique). Le client doit toutefois prendre note qu’une telle installation n’assure pas un service parfait en tout temps.
Les réparations de l’appareillage certifié devraient être confiées à un service d’entretien canadien désigné par le fournisseur. En cas de réparation ou de modification effectuées par l’utilisateur ou de mauvais fonctionnement de l’appareillage, le service de télécommunications peut demander le débranchment de l’appareillage.
Pour leur propre sécurité, les utilisateurs devraient s’assurer que les mises à la terre des lignes de distribution d’électricité, des lignes téléphoniques et de la tuyauterie métallique interne sont raccordées ensemble. Cette mesure de sécurité est particulièrement importante en milieu rural.
Attention:
aux pouvoirs de réglementation en cause ou à un électricien, selon le cas.
Les utilisateurs ne doivent pas procéder à ces raccordements eux-mêmes mais doivent plutôt faire appel
4401 Great America Parkway, Santa Clara, CA 95054
8 Federal Street, Billerica, MA 01821
Bay Networks, Inc.
Page 7
Canada Requirements Only
(continued)
Canadian Department of Communications Radio Interference Regulations
This digital apparatus (Access Feeder Node, Access Link Node, Access Node, Access Stack Node, Backbone Concentrator Node, Backbone Concentrator Node Switch, Backbone Link Node, Backbone Link Node Switch, Concentrator Node, Feeder Node, Link Node) does not exceed the Class A limits for radio-noise emissions from digital apparatus as set out in the Radio Interference Regulations of the Canadian Department of Communications.
Réglement sur le brouillage radioélectrique du ministère des Communications
Cet appareil numérique (Access Feeder Node, Access Link Node, Access Node, Access Stack Node, Backbone Concentrator Node, Backbone Concentrator Node Switch, Backbone Link Node, Backbone Link Node Switch, Concentrator Node, Feeder Node, Link Node) respecte les limites de bruits radioélectriques visant les appareils numériques de classe A prescrites dans le Réglement sur le brouillage radioélectrique du ministère des Communications du Canada.
4401 Great America Parkway, Santa Clara, CA 95054
8 Federal Street, Billerica, MA 01821
Bay Networks, Inc.
Page 8
T1 Service Compliance Statements
T1 Service
NOTE: This T1 Service notice applies to you onl
(MCT1) Link Module (which provides an internal CSU).
This equipment complies with Part 68 of FCC Rules. Please note the following:
1. You are required to request T1 service from the telephone company before you connect the CSU to a T1 network.
When you request T1 service, you must provide the telephone company with the following data:
The Facility Interface Code Provide the telephone company with both codes below: — 04DU9-B (1.544 MB D4 framing format)
— 04DU9-C (1.544 MB ESF format) The telephone company will select the code it has available.
The Service Order Code: 6.0F
The required USOC jack: RJ48C
The make, model number, and FCC Registration number of the CSU.
2. Your telephone company may make changes to its facilities, equipment, operations, or procedures that could affect the proper functioning of your equipment. The telephone company will notify you in advance of such changes to give you an opportunity to maintain uninterrupted telephone service.
3. If your CSU causes harm to the telephone network, the telephone company may temporarily discontinue your service. If possible, they will notify you in advance, but if advance notice is not practical, you will be notified as soon as possible and will be informed of your right to file a complaint with the FCC.
4. If you experience trouble with the CSU, please contact Bay Networks Technical Response Center in your area for service or repairs. Repairs should be performed only by service personnel authorized by Bay Networks, Inc.
United States 1-800-2LAN-WAN Valbonne, France (33) 92-966-968 Sydney , Australia (61) 2-903-5800 Tokyo, Japan (81) 3-328-005
5. You are required to notify the telephone company when you disconnect the CSU from the network and when you disconnect the BCNX or BLNX from the network.
y if you have received a single or dual port Multi-Channel T1
4401 Great America Parkway, Santa Clara, CA 95054
8 Federal Street, Billerica, MA 01821
Bay Networks, Inc.
Page 9
Bay Networks Software License
Note:
This is Bay Networks basic license document. In the absence of a software license agreement specifying varying terms, this license — or the license included with the particular product — shall govern licensee’s use of Bay Networks software.
This Software License shall govern the licensing of all software provided to licensee by Bay Networks (“Software”). Bay Networks will provide licensee with Software in machine-readable form and related documentation (“Documentation”). The Software provided under this license is proprietary to Bay Networks and to third parties from whom Bay Networks has acquired license rights. Bay Networks will not grant any Software license whatsoev er , either explicitly or implicitly, except by acceptance of an order for either Software or for a Bay Networks product (“Equipment”) that is packaged with Software. Each such license is subject to the following restrictions:
1. Upon delivery of the Software, Bay Networks grants to licensee a personal, nontransferable, none xclusiv e license to use the Software with the Equipment with which or for which it was originally acquired, including use at any of licensee’s facilities to which the Equipment may be transferred, for the useful life of the Equipment unless earlier terminated by default or cancellation. Use of the Software shall be limited to such Equipment and to such facility. Software which is licensed for use on hardware not offered by Bay Networks is not subject to restricted use on any Equipment, however, unless otherwise specified on the Documentation, each licensed copy of such Software may only be installed on one hardware item at any time.
2. Licensee may use the Software with backup Equipment only if the Equipment with which or for which it was acquired is inoperative.
3. Licensee may make a single copy of the Software (but not firmware) for safekeeping (archives) or backup purposes.
4. Licensee may modify Software (but not firmware), or combine it with other software, subject to the provision that those portions of the resulting software which incorporate Software are subject to the restrictions of this license. Licensee shall not make the resulting software available for use by any third party.
5. Neither title nor ownership to Software passes to licensee.
6. Licensee shall not provide, or otherwise make available, any Software, in whole or in part, in any form, to any third party. Third parties do not include consultants, subcontractors, or agents of licensee who have licensee’s permission to use the Software at licensee’s facility, and who have agreed in writing to use the Software only in accordance with the restrictions of this license.
7. Third-party owners from whom Bay Networks has acquired license rights to software that is incorporated into Bay Networks products shall have the right to enforce the provisions of this license against licensee.
8. Licensee shall not remove or obscure any copyright, patent, trademark, trade secret, or similar intellectual property or restricted rights notice within or affixed to any Software and shall reproduce and affix such notice on any backup copy of Software or copies of software resulting from modification or combination performed by licensee as permitted by this license.
4401 Great America Parkway, Santa Clara, CA 95054
8 Federal Street, Billerica, MA 01821
Bay Networks, Inc.
Page 10
Bay Networks Software License
9. Licensee shall not reverse assemble, reverse compile, or in any way reverse engineer the Software. [Note: For licensees in the European Community, the Softw are Directiv e dated 14 May 1991 (as may be amended from time to time) shall apply for interoperability purposes. Licensee must notify Bay Networks in writing of any such intended examination of the Software and Bay Networks may provide review and assistance.]
10. Notwithstanding any foregoing terms to the contrary, if licensee licenses the Bay Networks product “Site Manager,” licensee may duplicate and install the Site Manager product as specified in the Documentation. This right is granted solely as necessary for use of Site Manager on hardware installed with licensee’s network.
11. This license will automatically terminate upon improper handling of Software, such as by disclosure, or Bay Networks may terminate this license by written notice to licensee if licensee fails to comply with any of the material provisions of this license and fails to cure such failure within thirty (30) days after the receipt of written notice from Bay Networks. Upon termination of this license, licensee shall discontinue all use of the Software and return the Software and Documentation, including all copies, to Bay Networks.
12. Licensee’s obligations under this license shall survive expiration or termination of this license.
(continued)
4401 Great America Parkway, Santa Clara, CA 95054
8 Federal Street, Billerica, MA 01821
Bay Networks, Inc.
Page 11

Contents

About This Guide
Audience ..........................................................................................................................xix
Conventions .....................................................................................................................xx
Acronyms .........................................................................................................................xxi
Ordering Bay Networks Publications ..............................................................................xxii
Technical Support and Online Services
Bay Networks Customer Service ...................................................................................xxiv
Bay Networks Information Services ................................................................................xxv
World Wide Web .......................................................................................................xxv
Customer Service FTP .............................................................................................xxv
Support Source CD .................................................................................................xxvi
CompuServe ...........................................................................................................xxvi
InfoFACTS .............................................................................................................. xxvii
How to Get Help .....................................................................................................xxvii
Chapter 1 Installing the Backbone Link Node
Backbone Link Node Overview .......................................................................................1-2
Preparing for Installation .................................................................................................1-3
Shipment Contents ...................................................................................................1-3
Cables ......................................................................................................................1-4
Additional Equipment ...............................................................................................1-4
Site Requirements ....................................................................................................1-5
Electrical Requirements .....................................................................................1-5
Space Requirements .........................................................................................1-6
Environmental Requirements ............................................................................1-7
Setting Up the Backbone Link Node ...............................................................................1-7
Attaching Angle Brackets .........................................................................................1-7
Installing the BLN .....................................................................................................1-9
109352-E Rev. A
xi
Page 12
Powering On the BLN ...................................................................................................1-12
LED Activation Sequence ......................................................................................1-13
Establishing a Local or Remote Connection to the BLN ...............................................1-14
Local Connection ...................................................................................................1-14
Remote Connection ...............................................................................................1-15
Chapter 2 Installing the Backbone Link Node-2
Backbone Link Node-2 Overview ...................................................................................2-2
Preparing for Installation .................................................................................................2-3
Shipment Contents ...................................................................................................2-3
Cables ......................................................................................................................2-4
Additional Equipment ...............................................................................................2-4
Site Requirements ....................................................................................................2-5
Electrical Requirements .....................................................................................2-5
Space Requirements .........................................................................................2-6
Environmental Requirements ............................................................................2-7
Setting Up the Backbone Link Node-2 ...........................................................................2-7
Attaching Angle Brackets .........................................................................................2-7
Installing the BLN-2 ................................................................................................2-11
Powering On the BLN-2 ................................................................................................2-13
LED Activation Sequence ......................................................................................2-14
Establishing a Local or Remote Connection to the BLN-2 ...........................................2-15
Local Connection ...................................................................................................2-15
Remote Connection ...............................................................................................2-16
Chapter 3 Installing the BCN and BCN RLC
Backbone Concentrator Node Overview ........................................................................3-2
Preparing for Installation .................................................................................................3-3
Shipment Contents ...................................................................................................3-4
Cables ......................................................................................................................3-4
Additional Equipment ...............................................................................................3-5
Site Requirements ....................................................................................................3-5
Electrical Requirements .....................................................................................3-6
Space Requirements .........................................................................................3-7
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109352-E Rev. A
Page 13
Environmental Requirements ............................................................................3-8
Setting Up the Backbone Concentrator Node ................................................................3-8
Attaching Angle Brackets .........................................................................................3-8
Installing the BCN ..................................................................................................3-12
Powering On the BCN or BCN RLC .............................................................................3-15
LED Activation Sequence ......................................................................................3-17
Establishing a Local or Remote Connection to the BCN ..............................................3-20
Local Connection ...................................................................................................3-20
Remote Connection ...............................................................................................3-21
Chapter 4 Accessing the Interior
Removing and Replacing the Front Bezel ......................................................................4-2
Attaching the Antistatic Wrist Strap ................................................................................4-5
Removing and Replacing the EMC Shield .....................................................................4-6
Removing and Installing an Air Flow Module .................................................................4-9
Chapter 5 Hot-Swapping Hardware Components
Replacing Flash and PCMCIA SRAM Memory Cards ....................................................5-2
Protecting Memory Card Files ........................................................................................5-5
Replacing PCMCIA SRAM Memory Card Batteries .......................................................5-6
Replacing a Link Module or SRM-L ................................................................................5-7
Replacing a Routing Engine Module or SRM-F ............................................................5-12
Replacing a Power Module ...........................................................................................5-18
Replacing the BLN-2 Power Module ......................................................................5-20
Replacing the BCN Power Module .........................................................................5-21
Replacing a Fan Tray in a BLN-2 ..................................................................................5-23
Chapter 6 Switches and LEDs
Front Panel .....................................................................................................................6-1
Reset Switch ............................................................................................................6-2
Front-Panel LEDs .....................................................................................................6-2
620-Watt Power Module LED .........................................................................................6-3
109352-E Rev. A
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Page 14
Appendix A Dial-Up Services Modems
Adtran DSU III AR ......................................................................................................... A-2
Codex 3260 ................................................................................................................... A-3
Codex 3261 Fast ........................................................................................................... A-4
Multi-Tech Multi-Modem ................................................................................................ A-5
NEC N6450 Data Service Unit ...................................................................................... A-6
NEC N963E Plus (RS232) ............................................................................................. A-7
Telebit T3000 ................................................................................................................. A-8
Telebit T3000 (continued) .............................................................................................. A-9
Tylink SNS 4000 (V.35 ISDN PRI DSU) ....................................................................... A-10
Index
xiv
109352-E Rev. A
Page 15
Figures
Figure 1-1. Backbone Link Node (BLN) .....................................................................1-2
Figure 1-2. Attaching Angle Brackets to Support the BLN .........................................1-9
Figure 1-3. Removing the Front Bezel from the BLN ...............................................1-10
Figure 1-4. Mounting the BLN to the Rack ...............................................................1-11
Figure 1-5. BLN Front-Panel LEDs ...........................................................................1-13
Figure 1-6. Cabling the BLN to a Console ................................................................1-15
Figure 2-1. Backbone Link Node-2 (BLN-2) ...............................................................2-2
Figure 2-2. Locating the Mounting Holes ...................................................................2-9
Figure 2-3. Attaching Angle Brackets to Support the BLN-2 ....................................2-10
Figure 2-4. Removing the Front Bezel from the BLN-2 ............................................2-11
Figure 2-5. Mounting the BLN-2 to the Rack ............................................................2-12
Figure 2-6. BLN-2 Front-Panel LEDs .......................................................................2-14
Figure 2-7. Cabling the BLN-2 to a Console ............................................................2-16
Figure 3-1. Backbone Concentrator Node (BCN) .......................................................3-3
Figure 3-2. Locating the Mounting Holes ...................................................................3-9
Figure 3-3. Attaching Brackets to Support the BCN .................................................3-11
Figure 3-4. Removing a Power Module from the BCN .............................................3-12
Figure 3-5. Removing the Front Bezel from the BCN ...............................................3-13
Figure 3-6. Mounting the BCN to the Rack ..............................................................3-14
Figure 3-7. BCN and BCN RLC Power Systems ......................................................3-16
Figure 3-8. BCN RLC Power Source and Switches .................................................3-17
Figure 3-9. BCN Front-Panel LEDs ..........................................................................3-18
Figure 3-10. Cabling the BCN to a Console ...............................................................3-21
Figure 4-1. Removing the BLN Front Bezel ................................................................4-2
Figure 4-2. Removing the BLN-2 Front Bezel ............................................................4-3
Figure 4-3. Removing the Front Bezel from the BCN .................................................4-4
Figure 4-4. Connecting the Wrist Strap Jack to the Antistatic Receptacle .................4-6
Figure 4-5. BLN and BCN EMC Shields .....................................................................4-8
Figure 4-6. Air Flow Module Installed in a Hardware Platform ...................................4-9
109352-E Rev. A
xv
Page 16
Figure 4-7. Inserting or Removing an Air Flow Module ............................................4-10
Figure 4-8. Grasping the Air Flow Module ................................................................4-11
Figure 5-1. Removing a Flash or PCMCIA SRAM Memory Card ..............................5-4
Figure 5-2. Memory Card Read-Write Protect Switch ................................................5-6
Figure 5-3. Link Modules and the SRM-L in a BLN ....................................................5-9
Figure 5-4. Link Modules and the SRM-L in a BLN-2 ...............................................5-10
Figure 5-5. Link Modules and the SRM-L in a BCN .................................................5-11
Figure 5-6. Routing Engine Modules and the SRM-F in a BLN ................................5-13
Figure 5-7. Routing Engine Modules and the SRM-F in a BLN-2 ............................5-14
Figure 5-8. Routing Engine Modules and the SRM-F in a BCN ...............................5-15
Figure 5-9. Location of Power Switch on FRE/FRE-2 Module and SRM-F ..............5-16
Figure 5-10. Removing a Power Module from a BLN-2 ..............................................5-20
Figure 5-11. Removing a Power Module from a BCN ................................................5-22
Figure 5-12. Double-Fan Tray in the BLN-2 ................................................................5-24
Figure 5-13. Single-Fan Trays in the BLN-2 ...............................................................5-25
Figure 6-1. Front-Panel LEDs .....................................................................................6-1
Figure 6-2. 620-Watt Power Module Power OK LED ..................................................6-4
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109352-E Rev. A
Page 17
Tables
Table 1-1. BLN Shipment Contents ..........................................................................1-3
Table 1-2. Tools and Equipment You Supply .............................................................1-4
Table 1-3. Wall Receptacle Requirements ................................................................1-5
Table 1-4. BLN Dimensions ......................................................................................1-6
Table 1-5. BLN Thermal Output and Air Plenum Requirements ...............................1-6
Table 1-6. Total Space Required for BLN .................................................................1-6
Table 1-7. Environmental Requirements ...................................................................1-7
Table 1-8. Console Operating Parameters ..............................................................1-14
Table 1-9. Modem Operating Parameters ...............................................................1-15
Table 2-1. BLN-2 Shipment Contents .......................................................................2-3
Table 2-2. Tools and Equipment You Supply .............................................................2-4
Table 2-3. Wall Receptacle Requirements ................................................................2-5
Table 2-4. BLN-2 Dimensions ...................................................................................2-6
Table 2-5. BLN-2 Thermal Output and Air Plenum Requirements ............................2-6
Table 2-6. Total Space Required for BLN-2 ..............................................................2-6
Table 2-7. Environmental Requirements ...................................................................2-7
Table 2-8. Console Operating Parameters ..............................................................2-15
Table 2-9. Modem Operating Parameters ...............................................................2-16
Table 3-1. BCN Shipment Contents ..........................................................................3-4
Table 3-2. Tools and Equipment You Supply .............................................................3-5
Table 3-3. Wall Receptacle Requirements ................................................................3-6
Table 3-4. BCN Dimensions ......................................................................................3-7
Table 3-5. BCN Thermal Output and Air Plenum Requirements ..............................3-7
Table 3-6. Total Space Required for BCN .................................................................3-7
Table 3-7. Environmental Requirements ...................................................................3-8
Table 3-8. Console Operating Parameters ..............................................................3-20
Table 3-9. Modem Operating Parameters ...............................................................3-22
Table 5-1. User-Serviceable Components ................................................................5-1
Table 5-2. PCMCIA SRAM Battery ...........................................................................5-6
109352-E Rev. A
xvii
Page 18
Table 6-1. Front-Panel LEDs .....................................................................................6-2
xviii
109352-E Rev. A
Page 19

About This Guide

If you are responsible for installing and configuring Bay Networks Backbone Node hardware platforms, read this guide for installation instructions and user-serviceable hardware procedures for the Backbone Node family of high-speed hardware platforms (BLN
This guide describes how to
Prepare for hardware platforms installation
Install the hardware platforms
Access the hardware platforms locally and remotely
Power up the hardware platforms
Accessing the hardware platforms interior
Hot-swap certain user-serviceable hardware components
Interpret LEDs
®
, BLN-2, BCN,®, and BCN RLC).

Audience

Written for system and network managers, this guide describes how to install and configure Bay Networks BLN, BLN-2, BCN, and BCN RLC hardware.
xix
Page 20
Installing and Maintaining BN Platforms

Conventions

angle brackets (< >) Indicate that you choose the text to enter based on the
description inside the brackets. Do not type the brackets when entering the command.
ping
Example: if command syntax is you enter
ping 192.32.10.12
<ip_address>
,
bold text
Indicates text that you need to enter and command names in text.
dinfo
Example: Use the
command.
brackets ([ ]) Indicate optional elements. You can choose none, one,
or all of the options.
italic text
Indicates variable values in command syntax descriptions, new terms, file and directory names, and
book titles. quotation marks (“ ”) Indicate the title of a chapter or section within a book. separator ( > ) Separates menu and option names in instructions and
internal pin-to-pin wire connections.
Example: Protocols > AppleTalk identifies the
AppleTalk option in the Protocols menu.
Example: Pin 7 > 19 > 20
screen text
Indicates data that appears on the screen.
Example:
Set Bay Networks Trap Monitor Filters
vertical line (|) Indicates that you enter only one of the parts of the
command. The vertical line separates choices. Do not
type the vertical line when entering the command.
Example: If the command syntax is
xx
show at routes
show at routes
nets
|
, you enter either
show at nets
or
, but not both.
Page 21

Acronyms

-
ANSI American National Standards Institute ARE ATM Routing Engine ATM Asynchronous Transfer Mode BN Backbone Node BCN Backbone Concentrator Node BCN RLC Backbone Concentrator Node with Redundant Line Cord BLN Backbone Link Node BLN-2 Backbone Link Node-2 Btu British thermal unit DRAM dynamic random-access memory EMC electromagnetic compatibility EIA Electronic Industry Association FDDI Fiber Distributed Data Interface FRE Fast Routing Engine FRE-2 Fast Routing Engine-2 GAME Gate Access Management Entity HDMC Harpoon Diagnostic Console Monitor HSSI high speed serial interface ILI intelligent link interface MAC Media Access Control MOP Maintenance Operations Protocol NEMA National Electrical Manufacturers Association NVFS nonvolatile file system OSI Open Systems Interconnection PPX Parallel Packet Express QENET Quad Ethernet Link Module SNA Systems Network Architecture SNMP Simple Network Management Protocol SRM-F System Resource Module-Front SRM-L System Resources Module-Link
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Installing and Maintaining BN Platforms

Ordering Bay Networks Publications

To purchase additional copies of this document or other Bay Networks
publications, order by part number from the Bay Networks Press
at the
following telephone or fax numbers:
• Telephone - U.S./Canada 1-888-4BAYPRESS
• Telephone - International 1-510-490-4752
• Fax 1-510-498-2609 You can also use these numbers to request a free catalog of Bay Networks Press
product publications.
xxii
Page 23

Technical Support and Online Services

To ensure comprehensive network support to our customers and partners worldwide, Bay Networks Customer Service has Technical Response Centers in key locations around the globe:
Billerica, Massachusetts
Santa Clara, California
Sydney , Australia
Tokyo, Japan
Valbonne, France
109352-E Rev. A
The Technical Response Centers are connected via a redundant Frame Relay Network to a Common Problem Resolution system, enabling them to transmit and share information, and to provide live, around-the-clock support 365 days a year.
Bay Networks Information Services complement the Bay Networks Service program portfolio by giving customers and partners access to the most current technical and support information through a choice of access/retrieval means. These include the World Wide Web, CompuServe, Support Source CD, Customer Support FTP, and InfoFACTS document fax service.
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Installing and Maintaining BN Platforms

Bay Networks Customer Service

If you purchased your Bay Networks product from a distributor or authorized reseller, contact that distributor’s or reseller’s technical support staff for assistance with installation, configuration, troubleshooting, or integration issues.
Customers can also purchase direct support from Bay Networks through a variety of service programs. As part of our PhonePlus™ program, Bay Netw orks Service sets the industry standard, with 24-hour, 7-days-a-week telephone support available worldwide at no extra cost. Our complete range of contract and noncontract services also includes equipment staging and integration, installation support, on-site services, and replacement parts delivery -- within approximately 4 hours.
To purchase any of the Bay Networks support programs, or if you have questions on program features, use the following numbers:
Region Telephone Number Fax Number
United States and Canada
1-800-2LANWAN; enter Express Routing Code (ERC) 290 when prompted
(508) 670-8766
xxiv
(508) 436-8880 (direct) Europe (33) 92-968-300 (33) 92-968-301 Asia/Pacific Region (612) 9927-8800 (612) 9927-8811 Latin America (407) 997-1713 (407) 997-1714
In addition, you can receive information on support programs from your local Bay Networks field sales office, or purchase Bay Networks support directly from your authorized partner.
109352-E Rev. A
Page 25

Bay Networks Information Services

Bay Networks Information Services provide up-to-date support information as a first-line resource for network administration, expansion, and maintenance. This information is available from a variety of sources.

W orld Wide Web

The Bay Networks Customer Support Web Server offers a diverse library of technical documents, software agents, and other important technical information to Bay Networks customers and partners.
A special benefit for contracted customers and resellers is the ability to access the Web Server to perform Case Management. This feature enables your support staff to interact directly with the network experts in our worldwide Technical Response Centers. A registered contact with a valid Site ID can
View a listing of support cases and determine the current status of any open case. Case history data includes severity designation, and telephone, e-mail, or other logs associated with the case.
Technical Support and Online Services
Customize the listing of cases according to a variety of criteria, including date, severity, status, and case ID.
Log notes to existing open cases.
Create new cases for rapid, efficient handling of noncritical network situations.
Communicate directly via e-mail with the specific technical resources assigned to your case.
The Bay Networks URL is menu item on that home page.

Customer Service FTP

Accessible via URL combines and organizes support files and documentation from across the Bay Networks product suite, including switching products from our Centillion™ and Xylogics site lets you quickly locate information on any of your Bay Networks products.
109352-E Rev. A
®
http://www.baynetworks.com
ftp://support.baynetworks.com
. Customer Service is a
(134.177.3.26), this site
business units. Central management and sponsorship of this FTP
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Installing and Maintaining BN Platforms

Support Source CD

This CD-ROM -- sent quarterly to all contracted customers -- is a complete Bay Networks Service troubleshooting knowledge database with an intelligent text search engine.
The Support Source CD contains extracts from our problem-tracking database; information from the Bay Networks Forum on CompuServe; comprehensive technical documentation, such as Customer Support Bulletins, Release Notes, software patches and fixes; and complete information on all Bay Networks Service programs.
You can run a single version on Macintosh Windows 3.1, Windows 95, Windows NT, DOS, or UNIX computing platforms. A Web links feature enables you to go directly from the CD to various Bay Networks Web pages.

CompuServe

For assistance with noncritical network support issues, Bay Networks Information Services maintain an active forum on CompuServe, a global bulletin-board system. This forum provides file services, technology conferences, and a message section to get assistance from other users.
xxvi
The message section is monitored by Bay Networks engineers, who provide assistance wherever possible. Customers and resellers holding Bay Networks service contracts also have access to special libraries for advanced levels of support documentation and software. To take advantage of CompuServe’s recently enhanced menu options, the Bay Networks Forum has been re-engineered to allow links to our Web sites and FTP sites.
We recommend the use of CompuServe Information Manager software to access these Bay Networks Information Services resources. To open an account and receive a local dial-up number in the United States, call CompuServe at 1-800-524-3388. Outside of the United States, call 1-614-529-1349, or your nearest CompuServe office. Ask for Representative No. 591. When you’re on line with your CompuServe account, you can reach us with the command
BAYNET
.
GO
109352-E Rev. A
Page 27

InfoFACTS

InfoFACTS is the Bay Networks free 24-hour fax-on-demand service. This automated system has libraries of technical and product documents designed to help you manage and troubleshoot your Bay Networks products. The system responds to a fax from the caller or to a third party within minutes of being accessed.
To use InfoFACTS in the United States or Canada, call toll-free 1-800-786-3228. Outside of North America, toll calls can be made to 1-408-764-1002. In Europe, toll-free numbers are also available for contacting both InfoFACTS and CompuServe. Please check our Web page for the listing in your country.

How to Get Help

Use the following numbers to reach your Bay Networks Technical Response Center:
Technical Response Center Telephone Number Fax Number
Billerica, MA 1-800-2LANWAN (508) 670-8765 Santa Clara, CA 1-800-2LANWAN (408) 764-1188 Valbonne, France (33) 92-968-968 (33) 92-966-998 Sydney, Australia (612) 9927-8800 (612) 9927-8811 Tokyo, Japan (81) 3-5402-0180 (81) 3-5402-0173
Technical Support and Online Services
109352-E Rev. A
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Page 29
Chapter 1
Installing the Backbone Link Node
You install the Backbone Link Node (BLN) hardware platform by
Preparing for installation
Setting up the BLN
Powering up the BLN and observing the hardware platform initialization sequence
Cabling a console or modem to the BLN to establish a Bay Networks Technician Interface session
109352-E Rev. A
Danger: Due to high-energy hazards, only qualified service personnel with
written authorization from Bay Networks are permitted to repair a BLN. Chapter 5, “Hot-Swapping Hardware Components, ” describes user-serviceable procedures.
The BLN is not designed for use with an I.T. power system (a power distribution system that has no direct connection to earth); the exposed conductive parts of the BLN are grounded.
Caution: Inspect all items for any shipping damage. In particular, ensure that
the ports on the rear panel are not damaged. If you detect any damaged or missing items, do not attempt to install the BLN. Contact the Bay Networks Technical Response Center.
1-1
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Installing and Maintaining BN Platforms

Backbone Link Node Overview

The Backbone Link Node is a multiprotocol hardware platform/bridge designed to satisfy the high-performance availability requirements of mission-critical backbone internetworks. These networks transport information using communications subsystems and protocols such as:
Fiber Distributed Data Interface (FDDI)
Point-to-Point Protocol (PPP)
Systems Network Architecture (SNA)
The BLN (Figure 1-1) uses a symmetric multiprocessor architecture with Fast
®
Routing Engine (FRE
and FRE-2) processor modules, or ATM Routing Engine
(ARE) processor modules, along with the Bay Networks 1-Gb/s Parallel Packet
®
Express (PPX
) processor interconnect. The BLN supports four routing engine
modules and up to 16 LAN/WAN interfaces (up to four FDDI).
POWER
RESET RUN BOOT
BACKBONE NODE
Figure 1-1. Backbone Link Node (BLN)
DIAG
1-2 109352-E Rev. A
Page 31

Preparing for Installation

To prepare for the BLN installation, verify the following:
Your BLN shipment arrived complete and undamaged
You have the proper tools and equipment
Your installation site meets all BLN site requirements
These requirements are described in detail in the next sections.

Shipment Contents

Verify that the items in the BLN shipment match the items on the packing list affixed to the shipping container (Table 1-1).
Table 1-1. BLN Shipment Contents
Item Quantity
Backbone Link Node 1 The documentation set, including
notes for the system software and Site Manager,
Maintaining BN Hardware platforms Hardware platforms and BayStream hardware platforms Platforms Quick-Starting Hardware platforms and BayStream hardware platforms Platforms
Site Manager Application Software (diskettes or CD-ROM) 1 System software memory card (installed in unit) 1 Hardware package for mounting BLN in an electronic enclosure rack:
Read Me First
(this book),
Installing the Backbone Link Node
documents, release
Installing and
Cable Guide for
, and
1
– 10-32 x 0.5-in. panel-mount screws – 10-32 cage nuts
Optional: Hardware package for attaching angle brackets to electronic enclosure rack:
– Rack-mount brackets – 10-32 x 0.5-in. panel-mount screws – 10-32 cage nuts
Power cord 1 Optional: Shielded console cable 1
109352-E Rev. A 1-3
4 4
2 4 4
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Installing and Maintaining BN Platforms

Cables

Make sure that you received the correct cables with your shipment. If you plan to build your own cables, or if you want to order additional cables, refer to Cable Guide for Routers and BNX Platforms (router software) or Cable Guide (BayStream software).

Additional Equipment

You need to supply the additional equipment listed in Table 1-2.
Table 1-2. Tools and Equipment You Supply
Item Quantity
ANSI console or PC (to establish a Bay Networks Technician Interface session)
Optional: 25-pin male to 9-pin f emale cab le adaptor (needed only if you want to cable a PC directly to BLN to establish a local connection)
SPARCstation, PC, IBM RS/6000, or HP 9000 (for the Site Manager interface application, if not already installed)
A shielded console cable (only if you did not order one from Bay Networks)
Optional: An electronic enclosure rack in which to mount the BLN; rack must meet these requirements:
– Heavy-duty steel construction – Electronic Industries Association (EIA) – Standard hole spacing – Width: 19 in. (48.26 cm) – Depth: 24 in. (61 cm)
Any electronic enclosure rack panels or doors must contain louvers or screens to prevent overheating.
Tape measure (if mounting in a rack) 1 Phillips screwdriver (if mounting in a rack) 1
1
1
1
1
1
1-4 109352-E Rev. A
Page 33

Site Requirements

To obtain satisfactory BLN performance, your site must meet all of the following electrical, space, and environmental requirements.
Caution: Failure to adhere to these requirements may result in poor
equipment performance.
Electrical Requirements
Your installation site must provide a power source that meets the electrical requirements listed below:
10 A @ 110 VAC
5 A @ 230 VAC Locate the BLN within 6 ft (1.83 m) of a wall receptacle. Table 1-3 lists the type
of wall receptacle a BLN requires.
Installing the Backbone Link Node
Table 1-3. Wall Receptacle Requirements
Branch
Country Receptacle Voltage
United States or Canada
Other countries
109352-E Rev. A 1-5
National Electrical Manufacturers Association (NEMA) 5-15R standard receptacle.
Your BLN distributor supplies the proper cord. It is shipped with the unit from the factory.
100 to 120 volts
200 to 240 volts
Current
15 A
10 A
Page 34
Installing and Maintaining BN Platforms
Space Requirements
Make sure the installation site is large enough for the BLN and provides suf ficient air plenum (a volume of free space surrounding the hardware platform for heat exhaust). Table 1-4 lists the dimensions of the BLN.
Table 1-4. BLN Dimensions
Height Depth Width
14 in. (35.6 cm) 29.9 in. (58.2 cm) 17.3 in. (44 cm)
Table 1-5 lists the number of British thermal units (Btus) generated by the BLN and its air plenum requirements.
Table 1-5. BLN Thermal Output and Air Plenum Requirements
Thermal Output (Maximum Btu/hr) Location of Air Plenum
2600 Right 2 in. (5.1 cm)
Left 2 in. (5.1 cm) Front 1 in. (2.5 cm)
Minimum Required Air Plenum
Table 1-6 lists the total space needed (dimensions plus air plenum requirements) for the BLN.
Table 1-6. Total Space Required for BLN
Height Depth Width
8.75 in. (22.2 cm) 19.5 in. (49.5 cm) 21.3 in. (54.1 cm)
1-6 109352-E Rev. A
Page 35
Installing the Backbone Link Node
Environmental Requirements
The installation site must meet the environmental requirements listed in Table 1-7.
Table 1-7. Environmental Requirements
Altitude Humidity Temperature
0 to 8000 ft (0 to 2400 m)
10% to 90% noncondensing

Setting Up the Backbone Link Node

We recommend that you install your BLN in an electronic enclosure rack and use angle brackets for added support. If you choose not to use angle brackets when installing the BLN, proceed to “Installing the BLN,” later in this chapter.
Caution: Before you set up your BLN, refer to “Space Requirements” earlier
in this chapter to verify that adequate space exists for heat exhaust.

Attaching Angle Brackets

Before you can attach the optional angle brackets, you need the following equipment:
The optional hardware package containing the angle brackets, rack screws, and cage nuts
Tape measure
0°C to 40°C (32° F to 104° F)
Phillips screwdriver
Pen or pencil
Attach the angle brackets to the rack as follows (Figure 1-2):
1. Measure at least 8.75 in. (22.2 cm) of free vertical space inside the rack
and mark the spot.
2. Attach each angle bracket to the inside of the rack, below the marked
spot, as shown in Figure 1-2.
109352-E Rev. A 1-7
Page 36
Installing and Maintaining BN Platforms
a. If your rack does not have threaded holes, place cage nuts over the
holes before you attach the angle brackets.
b. Align the edge of the brackets to the rack as follows:
-- If the interior of the rack contains horizontal bracket supports, align the angle bracket with the horizontal bracket support.
-- If the interior of the rack does not contain horizontal bracket supports, brace the angle bracket between the side rails.
You must orient the brackets that support the hardware platform as shown in Figure 1-2. Ensure that you can adjust the bracket vertically along its slots before you secure it.
c. Insert two 10-32 screws through each bracket’s slotted holes, and into
the holes in the supports of the rack. Do not tighten the screws.
d. Adjust each bracket vertically along the bracket slots until the
bracket is 1.2 in. (3.1 cm) below the center of one hole in the front vertical support of the rack.
e. Tighten the screws with a screwdriver until secure.
1-8 109352-E Rev. A
Page 37
Installing the Backbone Link Node
Height
BLN 8.75 in. (22.2 cm) Min.
Depth
BLN 19.5 in. (49.5 cm) Min.
Figure 1-2. Attaching Angle Brackets to Support the BLN

Installing the BLN

This section describes how to install the BLN in an electronic enclosure rack. You need the following equipment to install the BLN:
The BLN hardware package that contains the panel-mount screws and cage nuts
(2 Places)
Bracket
(2 Places)
Screw
Rail
Cage nut
If rack rail is not threaded, attach cage nut.
Phillips screwdriver
109352-E Rev. A 1-9
Page 38
Installing and Maintaining BN Platforms
Install the BLN in the rack as follows:
Note: Before you place the BLN in the rack, ensure that the rack holes are
threaded. If they are not threaded, place cage nuts over the front vertical support holes.
1. Using both hands, pull the bottom of the front bezel toward you and
remove it from the chassis (Figure 1-3).
BACKBONE NODE
POWER RUN BOOT DIAG
RESET
Pull Bottom
Figure 1-3. Removing the Front Bezel from the BLN
Insert the BLN in the rack as shown in Figure 1-4.
2.
When using angle brackets for added support, place the BLN squarely on the angle brackets.
3. Insert and tighten the screws with a screwdriver until secure.
1-10 109352-E Rev. A
Page 39
Installing the Backbone Link Node
Rail
Cage nut
Screw
(4 Places)
If rack rail is not threaded,  attach cage nut.
Figure 1-4. Mounting the BLN to the Rack
Replace the front bezel as follows:
1. Align the mounting retainers on the inside of the bezel with the holes on
the front of the electromagnetic compatibility (EMC) shield.
2. Push the sides of the bezel into place.
109352-E Rev. A 1-11
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Installing and Maintaining BN Platforms

Powering On the BLN

Power on the BLN as follows:
1. Ensure that the power switch on the rear panel is in the OFF position.
2. Connect the power cable to the power switch assembly on the BLN rear
panel.
3. Insert the power plug into the appropriate wall receptacle (refer to
“Electrical Requirements” earlier in this chapter).

4. Turn the power switch to the ON position.

The fans in the BLN start to spin.
5. Verify that air is flowing from the cooling fans by passing your hand
along the left side of the BLN to feel the air movement.
Note: If you cannot feel air flow from the vents, if the POWER and DIAG
LEDs remain off, or if the DIAG LED does not turn on, turn the BLN power switch to the OFF position. Wait 1 minute and then turn the power switch to the ON position. If the problem persists, contact the Bay Networks Technical Response Center.
After you power on the BLN, each routing engine automatically initiates a diagnostic test to verify proper board function.
1-12 109352-E Rev. A
Page 41

LED Activation Sequence

The LEDs on the front panel of the BLN (Figure 1-5) activate while the BLN initializes and runs through its diagnostic test.
Installing the Backbone Link Node
Indicates power OK
Indicates router software is executing
Indicates one or more slots are booting
Indicates diagnostic test execution or node failure
Initializes (boots) the system
Figure 1-5. BLN Front-Panel LEDs
POWER RUN BOOT
DIAG
RESET
The LEDs typically activate in the following order (the sequence may vary slightly or overlap):
1. The POWER and DIAG LEDs turn on.
When on, the POWER LED indicates that the power supply voltages are
all within normal limits.
When on, the DIAG LED indicates diagnostic testing on one or more
modules. After a successful test, the DIAG LED turns off. The DIAG LED remains on if a diagnostic test does not end successfully for any given slot.
2. The BOOT and RUN LEDs turn on.
When on, the BOOT LED indicates the initialization and loading of
software by one or more modules.
When on, the RUN LED indicates that system software is running on one
or more modules. The RUN LED remains on while the BLN is operating normally.
109352-E Rev. A 1-13
Page 42
Installing and Maintaining BN Platforms
The BLN indicates a successful start-up by turning off the BOOT LED. The POWER and RUN LEDs remain on. Refer to Chapter 6, “Switches and LEDs,” for a complete explanation of all Backbone Node LEDs. To activate the BLN on your IP network, refer to Quick-Starting Routers and BNX Platforms (router software), or to Configuring an Interface for Network Management (BayStream software).
Establishing a Local or Remote Connection to the BLN
You can cable a BLN to an ANSI console or a PC to establish a local Technician Interface session, or to a modem to establish a remote session.

Local Connection

Cable the BLN to an ANSI console as follows:
1. Power on the console and set its operating parameters as shown in
Table 1-8.
Refer to your console user manual for instructions on how to set these operating parameters.
Table 1-8. Console Operating Parameters
Parameter Value
Baud rate 9600 Data bits 8 Stop bits 1 Parity None
2. Insert the male end of the cable (Order No. 7525) into the CONSOLE
port of the System Resources Module-Link (SRM-L) Module (Figure 1-6).
The SRM-L resides in Slot 1 of the rear panel.
3. Insert the female end of the cable into the ANSI console communications
port.
1-14 109352-E Rev. A
Page 43
100 - 240V~
5 4 3 2 1
Link Modules
SRM-L
10.0A
50/60Hz
I
0
Console
XCVR
COM 1
RLDS2
RYEL
RLDS2
COM 1
RLDS2
RYEL
RLDS2
COM 1
RLDS2
RYEL
RLDS2
COM 1
RLDS2
RYEL
RLDS2
CONSOLE
????
FAIL
NSRT
RCVR
WFAIL
DST
XCVR
FAIL
NSRT
RCVR
WFAIL
DST
XCVR
FAIL
NSRT
RCVR
WFAIL
DST
XCVR
FAIL
NSRT
RCVR
WFAIL
DST
????
?????
????
SRM L
port
Figure 1-6. Cabling the BLN to a Console

Remote Connection

This section describes how to cable your BLN to a modem for remote dial-in access.
Installing the Backbone Link Node
ANSI console communications port
Note: Before you replace the local console connection with a modem
connection, you must use the Technician Interface to configure the BLN initial IP network interface. To activate the BLN on your IP network refer to
Quick-Starting Routers and BNX Platforms (router software), or to Configuring an Interface for Network Management (BayStream software).
Cable the BLN to the modem as follows:
1. Power on and configure the modem as shown in Table 1-9.
Refer to the modem user documentation for instructions on configuring your modem.
Table 1-9. Modem Operating Parameters
Parameter Setting
Baud rate 9600 or less
n
Auto answer Set on
(
n
Clear to Send (CTS) signal Always ON
rings with DTR active
must be greater than 0)
(continued)
109352-E Rev. A 1-15
Page 44
Installing and Maintaining BN Platforms
Table 1-9. Modem Operating Parameters
Parameter Setting
Data Terminal Ready (DTR) signal DTR signal fail-disconnect enabled (return
to command mode, auto-answer off)
Data Carrier Detect (DCD) signal DCD signal on while carrier present (the
node uses DCD to detect modem
disconnect) Local character echo OFF Supervisory functions OFF Data Set Ready (DSR) signal ON
(continued)
2. Remove the cable connector from the CONSOLE port of the System
Resource Module-Link (SRM-L).
The SRM-L is in Slot 1 of the BLN’s rear panel (Figure 1-6).
3. Insert one end of the cable (Order No. 77850) into the SRM-L
CONSOLE port.
Note: The console cable and the modem cable both connect to the BLN using
the CONSOLE port.
4. Insert the other end of the cable into the RS-232 communications port at
the back of the modem.
To configure the BLN CONSOLE port for modem operation, refer to Configuring Routers (router software) or Getting Started with Site Manager (BayStream
software).
1-16 109352-E Rev. A
Page 45
Chapter 2
Installing the Backbone Link Node-2
You install the Backbone Link Node-2 (BLN-2) hardware platform by
Preparing for installation
Setting up the BLN-2
Powering up the BLN-2 and observing the hardware platform as it initializes
Cabling a console or modem to the BLN-2 to establish a Bay Networks Technician Interface session
Note: This chapter describes how to install the A C v ersion of the BLN-2. Only
qualified service personnel are permitted to connect the DC version of the BLN-2 to a power source.
Danger: Due to high-energy hazards, only qualified service personnel with
written authorization from Bay Networks are permitted to repair a BLN-2. Chapter 5, “Hot -Swapping Hardware Components,” describes user-serviceable procedures.
The BLN-2 is not designed for use with an I.T. power system (a power distribution system that has no direct connection to earth); the exposed conductive parts of the BLN-2 are grounded.
Caution: Inspect all items for any shipping damage. In particular, ensure that
the ports on the rear panel are not damaged. If you detect any damaged or missing items, do not attempt to install the BLN-2. Contact the Bay Networks Technical Response Center.
109352-E Rev. A 2-1
Page 46
Installing and Maintaining BN Platforms

Backbone Link Node-2 Overview

The BLN-2 is a multiprotocol hardware platform and bridge designed to satisfy the high-performance availability requirements of mission-critical backbone internetworks. These networks transport information using communications subsystems and protocols such as:
Fiber Distributed Data Interface (FDDI)
Point-to-Point Protocol (PPP)
Systems Network Architecture (SNA)
The BLN-2 (F
igure 2-1) uses a symmetric multiprocessor architecture with Fast
Routing Engine (FRE and FRE-2) processor modules, or ATM Routing Engine (ARE) processor modules, along with the Bay Networks 1-Gb/s Parallel Packet Express (PPX) processor interconnect. The BLN-2 supports four routing engine modules and up to 16 LAN/WAN interfaces (up to four FDDI).
The BLN-2 hardware platform features redundant power supplies and cooling fans.
POWER RUN
RESET
BOOT
B A C K B O N E N O D E
DIAG
Figure 2-1. Backbone Link Node-2 (BLN-2)
2-2 109352-E Rev. A
Page 47

Preparing for Installation

To prepare for the BLN-2 installation, verify the following:
Your BLN-2 shipment arrived complete and undamaged
You have the proper tools and equipment
Your installation site meets all BLN-2 site requirements These requirements are described in detail in the next sections.

Shipment Contents

Verify that the items in the BLN-2 shipment match the items on the packing list affixed to the shipping container (T
Table 2-1. BLN-2 Shipment Contents
Item Quantity
Backbone Link Node-2 1 Site Manager Application Software (diskettes or CD-ROM) 1 System software memory card (installed in unit) 1 Hardware package for attaching angle brackets to the electronic
enclosure rack (required):
Installing the Backbone Link Node-2
able 2-1).
– Rack-mount brackets – 10-32 x 0.5-in. panel-mount screws – 10-32 cage nuts
Hardware package for mounting BLN-2 in an electronic enclosure rack: – 10-32 x 0.5-in. panel-mount screws
– 10-32 cage nuts Power cords 2 Optional: Shielded console cable 1
109352-E Rev. A 2-3
2 4 4
8 8
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Installing and Maintaining BN Platforms

Cables

Make sure that you received the correct cables with your shipment. If you plan to build your own cables, or if you want to order additional cables, refer to Cable Guide for Routers and BNX Platforms (router software) or Cable Guide (BayStream software).

Additional Equipment

You need to supply the additional equipment listed in Table 2-2.
Table 2-2. Tools and Equipment You Supply
Item Quantity
ANSI console or PC (for establishing a Bay Networks Technician Interface session)
Optional: 25-pin male to 9-pin female cable adaptor (needed only if you want to cable a PC directly to BLN-2 to establish a local connection)
SPARCstation, PC, IBM RS/6000, or HP 9000 (for the Site Manager interface application, if not already installed)
A shielded console cable (only if you did not order one separately from Ba y Networks)
An electronic enclosure rack to mount the BLN-2; rack must meet these requirements:
– Heavy-duty steel construction – Electronic Industries Association (EIA) standards – Standard hole spacing – Width: 19 in. (48.3 cm) – Depth: 24 in. (61.0 cm)
Any electronic enclosure rack panels or doors must contain louvers or screens to prevent overheating.
Tape measure 1 Phillips screwdriver 1
1
1
1
1
1
2-4 109352-E Rev. A
Page 49

Site Requirements

To obtain satisfactory BLN-2 performance, your site must meet all of the following electrical, space, and environmental requirements.
Caution: Failure to adhere to these requirements may result in poor
equipment performance.
Electrical Requirements
Your installation site must provide a power source that meets the electrical requirements listed below:
12 A @ 110 V
6 A @ 230 V Locate the BLN-2 within 6 ft (1.83 m) of a wall receptacle. T able 2-3 lists the type
of wall receptacle a BLN-2 requires.
Installing the Backbone Link Node-2
Table 2-3. Wall Receptacle Requirements
Country Receptacle Voltage
United States or Canada
Other countries
109352-E Rev. A 2-5
National Electrical Manufacturers
Association (NEMA) 5-15R standard
receptacle.
Your BLN-2 distributor supplies the proper
cord. It is shipped with the unit from the
factory.
100 to 120 volts 15 A
200 to 240 volts 10 A
Branch Current
Page 50
Installing and Maintaining BN Platforms
Space Requirements
Make sure the installation site is large enough for the BLN-2 and provides sufficient air plenum (a volume of free space surrounding the BN for heat exhaust). Table 2-4 lists the dimensions of the BLN-2.
Table 2-4. BLN-2 Dimensions
Height Depth Width
14 in. (35.6 cm) 22.9 in. (58.2 cm) 17.3 in. (44.0 cm)
Table 2-5 lists the number of British thermal units (Btus) generated by the BLN-2 and the air plenum requirements.
Table 2-5. BLN-2 Thermal Output and Air Plenum Requirements
Thermal Output (Maximum Btu/hr)
2600 Right 2 in. (5.1 cm)
Location of Air Plenum
Left 2 in. (5.1 cm) Front 1 in. (2.5 cm)
Minimum Required Air Plenum
Table 2-6 lists the total space needed (dimensions plus air plenum requirements) for the BLN-2.
Table 2-6. Total Space Required for BLN-2
Height Depth Width
15.8 in. (40.0 cm) 22.9 in. (58.2 cm) 21.3 in. (54.1 cm)
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Installing the Backbone Link Node-2
Environmental Requirements
The installation site must meet the environmental requirements listed in Table 2-7.
Table 2-7. Environmental Requirements
Altitude Humidity Temperature
0 to 8000 ft (0 to 2400 m)
10% to 90% noncondensing

Setting Up the Backbone Link Node-2

You must install your BLN-2 in an electronic enclosure rack.
Caution: Before you set up your BLN-2, refer to “Space Requirements”
earlier in this chapter to verify that adequate space exists for heat exhaust.

Attaching Angle Brackets

We highly recommend that you place your hardware platform on angle brackets for added support when installing your BLN-2 in a rack. You need the following equipment to attach the angle brackets:
The hardware package containing the angle brackets, panel-mount screws,
and cage nuts
Tape measure
Phillips screwdriver
0°C to 40°C
(32
F to 104∞F)
Pen or pencil Attach the angle brackets to the rack as follows:
1. To ensure that the slots in the BLN-2 flanges align with the holes in the
rack:
a. Measure at least 15.75 in. (40 cm) of free vertical space inside the
rack and mark the spot.
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Installing and Maintaining BN Platforms
b. Locate the next two holes below this spot that have a 0.625-in. space
between them.
Note: The hole pattern shown in Figure 2-2 repeats on the rail.
2. Mount the angle brackets in the area indicated by Figure 2-3.
a. If your rack does not have threaded holes, place cage nuts over the
holes before you attach the angle brackets.
b. Align the edge of the brackets to the rack as follows:
-- If the interior of the rack contains horizontal bracket supports, align the angle bracket with the horizontal bracket support.
-- If the interior of the rack does not contain horizontal bracket supports, brace the angle bracket between the side rails.
You must orient the brackets that support the hardware platform as shown in Figure 2-3. Ensure that you can adjust the bracket vertically along its slots before you secure it.
c. Insert two 10-32 screws through each bracket’s slotted holes and into
the holes in the supports of the rack. Do not tighten the screws.
d. Adjust each bracket vertically along the bracket slots until the
bracket is 1.4 in. (3.6 cm) below the center of one hole in the front vertical support of the rack.
e. Tighten the screws with a screwdriver until secure.
2-8 109352-E Rev. A
Page 53
1.4"
Rack Post
2.375"
1.750"
1.125"
Mounting Hole Locations
0.625"
Installing the Backbone Link Node-2
Router
Flange
Angle Bracket Supporting Router Mounted on Back of  Rack Post
Figure 2-2. Locating the Mounting Holes
109352-E Rev. A 2-9
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Installing and Maintaining BN Platforms
BLN-2 15.75 in. (40.0 cm) Minimum
(2 Places)
Bracket
(2 Places)
Height
Screw
Depth
BLN-2 23.9 in. (60.7 cm) Minimum
Rail
Cage nut
If rack rail is not threaded, attach cage nut.
Figure 2-3. Attaching Angle Brackets to Support the BLN-2
2-10 109352-E Rev. A
Page 55

Installing the BLN-2

Warning: The BLN-2 weighs approximately 125 lb. Do not attempt to lift it
by yourself. Use a team of people or specialized lifting equipment. Before inserting the BLN-2 in the rack, ensure that all equipment already inside the rack is secure.
Install the BLN-2 in the electronic enclosure rack as follows:
1. Using both hands, pull the bottom of the front bezel toward you and
remove it from the chassis (F
B A C K B O N E N O D E
POWER RUN BOOT DIAG
Installing the Backbone Link Node-2
igure 2-4).
RESET
Pull Bottom
Figure 2-4. Removing the Front Bezel from the BLN-2
Note: Before you place the BLN-2 in the rack, ensure that the rack holes are
threaded. If they are not threaded, place cage nuts over the front vertical support holes.
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Installing and Maintaining BN Platforms
2. Insert the BLN-2 in the rack as shown in Figure 2-5. Make sure the
BLN-2 rests squarely on the angle brackets.
3. Insert and tighten the screws with a screwdriver until secure.
Replace the front bezel as follows:
1. Align the mounting retainers on the inside of the bezel with the holes on
the front of the electromagnetic compatibility (EMC) shield.
2. Push the sides of the bezel into place.
Rail
Cage nut
Screw
(4 Places)
If rack rail is not threaded,  attach cage nut.
Figure 2-5. Mounting the BLN-2 to the Rack
2-12 109352-E Rev. A
Page 57

Powering On the BLN-2

Power on the BLN-2 as follows:
1. Ensure that the power switches on the rear panel ar e in the OFF position.
2. Connect the power cables to the power switch assembly on the BLN-2
rear panel.
Note: The BLN-2 has two power supplies, so remember to plug in the cables
and turn on the switches on both.
Inserting the BLN-2 power cables into separate branch circuits allows for redundant AC power. For additional information about BLN-2 power supplies, refer to Chapter 5, “Hot-Swapping Hardware Components.”
3. Insert the power plugs into their appropriate wall receptacles (refer to
Electrical Requirements earlier in this chapter).

4. Turn the power switches to the ON position.

Installing the Backbone Link Node-2
5. Verify that air is flowing from the cooling fans and out through the vents
on either side of the BLN-2.
Note: If you cannot feel air flow from the BLN-2 vents, if the POWER and
DIAG LEDs remain off, or if the DIAG LED remains on, turn the power switch at the rear of the BLN-2 to the OFF position. Wait 1 minute and then turn the power switch to the ON position. If the problem persists, contact the Bay Networks Technical Response Center.
After you power on the BLN-2, each routing engine automatically initiates a diagnostic test to verify proper board function.
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Installing and Maintaining BN Platforms

LED Activation Sequence

The LEDs on the front panel of the BLN-2 (Figure 2-6) activate while the BLN-2 initializes and runs through its diagnostic tests.
Indicates power OK
Indicates router software is executing
Indicates one or more slots are booting
Indicates diagnostic test execution or node failure
Initializes (boots) the system
Figure 2-6. BLN-2 Front-Panel LEDs
POWER RUN BOOT
DIAG
RESET
The LEDs typically activate in the following order (the sequence may vary slightly or overlap):
1. The POWER and DIAG LEDs turn on.
When on, the POWER LED indicates that the power supply voltages are all within normal limits.
When on, the DIAG LED indicates diagnostic testing on one or more modules. After a successful test, the DIAG LED turns off. The DIAG LED remains on if a diagnostic test does not end successfully for any given slot.
2. The BOOT and RUN LEDs turn on.
When on, the BOOT LED indicates the initialization and loading of software by one or more modules.
When on, the RUN LED indicates that system software is running on one or more modules. The RUN LED remains on while the BLN-2 is operating normally.
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Installing the Backbone Link Node-2
The BLN-2 indicates a successful start-up by turning off the BOOT LED. The POWER and RUN LEDs remain on. Refer to Chapter 6, “Switches and LEDs,” for a complete explanation of all LEDs. To activate the BLN-2 on your IP network refer to Quick-Starting Routers and BNX Platforms, or to Configuring an Interface for Network Management (BayStream software).
Establishing a Local or Remote Connection to the BLN-2
You can cable a BLN-2 to an ANSI console or a PC to establish a local T echnician Interface session, or to a modem to establish a remote session.
Note: Bay Networks offers the cables for console connection. To activate the
BLN on your IP network refer to Quick-Starting Routers and BNX Platforms (router software), or to Configuring an Interface for Network Management (BayStream software).

Local Connection

Cable the BLN-2 to an ANSI console as follows:
1. Power on the console and set its operating parameters as shown in
Table 2-8.
Refer to your console user manual for instructions on how to set these operating parameters.
Table 2-8. Console Operating Parameters
Parameter Value
Baud rate 9600 Data bits 8 Stop bits 1 Parity None
2. Insert the male end of the cable (Order No. 7525) into the CONSOLE
port of the System Resources Module-Link (SRM-L) (Figure 2-7).
The SRM-L resides in Slot 1 of the rear panel.
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Installing and Maintaining BN Platforms
3. Insert the female end of the cable into the ANSI console communications
port.
XCVR
FAIL
NSRT
RCVR
WFAIL
DST
5
XCVR
FAIL
NSRT
RCVR
WFAIL
DST
4
XCVR
FAIL
NSRT
RCVR
WFAIL
DST
3
XCVR
FAIL
NSRT
RCVR
WFAIL
DST
2
????
?????
????
????
SRM L
1
SRM-L
Console port
COM 1
RLDS2
RYEL
RLDS2
COM 1
RLDS2
RYEL
RLDS2
COM 1
RLDS2
RYEL
RLDS2
COM 1
RLDS2
RYEL
RLDS2
CONSOLE
Power OK
Figure 2-7. Cabling the BLN-2 to a Console

Remote Connection

Power OK
ANSI console communications port
Note: Before you replace the local console connection with a modem
connection, you must use the Technician Interface to configure the BLN-2 initial IP network interface. Refer to Quick-Starting Routers and BayStream Platforms for instructions.
Cable the BLN-2 to the modem as follows:
1. Power on and configure the modem as shown in Table 2-9.
Refer to the modem user documentation for instructions on configuring your modem.
Table 2-9. Modem Operating Parameters
Parameter Setting
Baud rate 9600 or less
n
Auto answer Set on
greater than 0)
Clear to Send (CTS) signal Always ON
2-16 109352-E Rev. A
rings with DTR active (n must be
Page 61
Installing the Backbone Link Node-2
Table 2-9. Modem Operating Parameters
Parameter Setting
Data Terminal Ready (DTR) signal DTR signal fail-disconnect enabled (return
to command mode, auto-answer off)
Data Carrier Detect (DCD) signal DCD signal on while carrier present (the
node uses DCD to detect modem
disconnect) Local character echo OFF Supervisory functions OFF Data Set Ready (DSR) signal ON
Remove the cable connector from the CONSOLE port of the System
2.
(continued)
Resource Module-Link (SRM-L).
The SRM-L resides in Slot 1 of the BLN-2 rear panel (Figure 2-7).
3. Insert one end of the modem cable (Order No. 77850) into the
SRM-L CONSOLE port.
Note: The console cable and the modem cable both connect to the BLN-2
using the CONSOLE port.
4. Insert the other end of the cable into the RS-232 communications port on
the back of the modem.
To configure the BLN CONSOLE port for modem operation, refer to Configuring Routers (router software) or Getting Started with Site Manager (BayStream
software).
109352-E Rev. A 2-17
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Page 63
Chapter 3
Installing the BCN and BCN RLC
You install the Backbone Concentrator Node (BCN) by
Preparing for installation
Setting up the BCN
Powering up the BCN and observing the hardware platform as it initializes
Cabling a console or modem to the hardware platform for access to the Bay Networks Technician Interface
Note: This chapter describes how to install the Single AC Source (BCN) and
Dual AC Source (BCN RLC) versions. The BCN and the BCN RLC are both referred to as BCN except where a differentiation is necessary. Only qualified service personnel are permitted to connect the DC version of the BCN to a power source. See Installing the DC Version of the BCN and BLN-2.
Danger: Due to high-energy hazards, only qualified service personnel are
permitted to repair a Backbone Concentrator Node. Chapter 5, “Hot-Swapping Hardware Components,” describes user-serviceable procedures.
The BCN is not designed for use with an I.T. power system (a power distribution system that has no direct connection to earth); the exposed conductive parts of the BCN are grounded.
Warning: The BCN weighs approximately 214 lb (97.07 kg). Do not attempt
to lift it by yourself. Use a team of people or specialized lifting equipment.
109352-E Rev. A 3-1
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Installing and Maintaining BN Platforms
Caution: Inspect all items for any shipping damage. In particular, ensure that
the ports on the rear panel are not damaged. If you detect any damaged or missing items, do not attempt to install the BCN. Contact the Bay Networks Technical Response Center.

Backbone Concentrator Node Overview

The BCN is a multiprotocol router/bridge designed to satisfy the high-performance availability requirements of the most demanding, mission-critical backbone internetworks. These networks transport information using communications subsystems and protocols such as:
Fiber Distributed Data Interface (FDDI)
T1/T3 synchronous lines
Asynchronous Transfer Mode (ATM)
Systems Network Architecture
The BCN (F Routing Engine (FRE or FRE-2) processor modules, or ATM Routing Engine (ARE) processor modules, along with the Bay Networks 1 Gb/s Parallel Packet Express (PPX) processor interconnect. This combination delivers industry-leading performance.
The BCN supports up to 13 ILI sets. The BCN RLC supports up to 10 ILI sets.
3-2 109352-E Rev. A
igure 3-1) uses a symmetric multiprocessor architecture with Fast
Page 65
Installing the BCN and BCN RLC
POWER RUN
RESET
BOOT
B A C K B O N E N O D E
DIAG
Figure 3-1. Backbone Concentrator Node (BCN)

Preparing for Installation

To prepare for the BCN installation, verify the following:
Your BCN shipment arrived complete and undamaged
You have the proper tools and equipment
Your installation site meets all BCN site requirements
These requirements are described in detail in the next sections.
109352-E Rev. A 3-3
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Installing and Maintaining BN Platforms

Shipment Contents

Verify that the items in the BCN shipment match the items on the packing list affixed to the shipping container (T
Table 3-1. BCN Shipment Contents
Item Quantity
Backbone Concentrator Node 1 Site Manager Application Software (diskettes or CD-ROM) 1 System software memory card (installed in unit) 1 Hardware package for attaching angle brackets to the electronic
enclosure rack:
able 3-1).

Cables

– Rack-mount brackets – 10-32 x 0.5-in. panel-mount screws – 10-32 cage nuts
Hardware package for mounting the BCN in an electronic enclosure r ac k: – 10-32 x 0.5-in. panel-mount screws
– 10-32 cage nuts Antistatic wrist strap (located inside the front bezel) 1 BCN power cord, or
BCN RLC power cords Optional: Shielded console cable 1
2 4 4
8 8
1 2
Make sure that you received the correct cables with your shipment. If you plan to build your own cables, or if you want to order additional cables, refer to Cable Guide for Routers and BNX Platforms (router software) or Cable Guide (BayStream software).
3-4 109352-E Rev. A
Page 67

Additional Equipment

You need to supply the additional equipment listed in Table 3-2.
Table 3-2. Tools and Equipment You Supply
Item Quantity
Installing the BCN and BCN RLC
ANSI console or PC (to establish a Bay Networks Technician Interface session)
Optional: 25-pin male to 9-pin female cable adaptor (needed only if you want to cable a PC directly to the BCN to establish a local connection)
SPARCstation, PC, IBM RS/6000, or HP 9000 (for Site Manager) 1 A shielded console cable (only if you did not order one separately from Ba y
Networks) An electronic enclosure rack in which to mount the BCN. The rack must
meet the following requirements: – Heavy-duty steel construction
– Electronic Industries Association (EIA) standard hole spacing – Width: 19 in. (48.3 cm) – Depth: 24 in. (61 cm)
Any electronic enclosure rack panels or doors must contain louvers or screens to prevent overheating
Tape measure 1 5/32-in. hex wrench 1 Phillips screwdriver 1 Standard screwdriver 1
1
1
1
1

Site Requirements

To obtain satisfactory BCN performance, your site must meet all of the following electrical, space, and environmental requirements.
Caution: Failure to adhere to these requirements may result in poor
equipment performance.
109352-E Rev. A 3-5
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Installing and Maintaining BN Platforms
Electrical Requirements
The installation site must provide a power source that meets the following electrical requirement: 200 to 240 VAC at a maximum of 13 A @ 230 VAC.
The power required for the BCN RLC is 100 VAC to 240 VAC at a maximum of 8a @ 230 VAC and 16a @ 100 VAC.
Locate the BCN within 8 ft (2.5 m) of the wall receptacle. Table 3-3 lists the types of wall receptacles the BCN uses.
Table 3-3. Wall Receptacle Requirements
Country Receptacle Voltage
United States or Canada
European countries
Other countries
National Electrical Manufacturers Association (NEMA) L6-20R standard receptacle
IEC 309 standard receptacle 240 volts 16 A
Your BCN distributor supplies the proper cord. It is shipped with the unit from the factory.
208 to 220 volts
200 to 240 volts
Branch Current
20 A
20 A
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Installing the BCN and BCN RLC
Space Requirements
Make sure the installation site is large enough for the BCN and provides suf ficient air plenum (a volume of free space surrounding the hardware platform for heat exhaust). Table 3-4 lists the dimensions of the BCN.
Table 3-4. BCN Dimensions
Height Depth Width
24.4 in. (62.0 cm) 22.9 in. (58.2 cm) 19 in. (48.3 cm)
Table 3-5 lists the number of British thermal units (Btus) generated by the BCN and its air plenum requirements.
Table 3-5. BCN Thermal Output and Air Plenum Requirements
Thermal Output (Maximum Btu/hr.)
7700 Front of BCN 2.5 in. (6.4 cm) 4 in. (10.2 cm)
Location of Air Plenum
Rear of BCN 2.5 in. (6.4 cm) 4 in. (10.2 cm) Top of BCN 3.5 in. (9 cm) 5.25 in. (13.3 cm) Right of BCN 2 in. (5.1 cm) 3 in. (7.6 cm)
Required Air Plenum
Recommended Air Plenum
T able 3-6 sho ws the total space needed (dimensions plus air plenum requirements) for the BCN. You must ensure that the rear of the rack has at least 20 inches of additional clearance available for inserting and removing the power modules.
Table 3-6. Total Space Required for BCN
Height Depth Width
27.9 in. (70.9 cm) 27.9 in. (70.9 cm) 21 in. (53.3 cm)
109352-E Rev. A 3-7
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Installing and Maintaining BN Platforms
Environmental Requirements
The installation site must meet the environmental requirements listed in Table 3-7.
Table 3-7. Environmental Requirements
Altitude Humidity Temperature
0 to 8000 ft (0 to 2400 m)
10% to 90% noncondensing

Setting Up the Backbone Concentrator Node

You must install your BCN in an electronic enclosure rack.
Caution: Before you set up your BCN, refer to “Space Requirements” earlier
in this chapter to verify that adequate space exists for heat exhaust.

Attaching Angle Brackets

We highly recommend that you place your hardware platform on angle brackets for added support when installing your BCN in a rack.
Before you begin, locate the hardware package that contains the brackets, panel-mount screws, and cage nuts. You also need a tape measure and a Phillips screwdriver.
Attach angle brackets as follows:
0°C to 40°C (32°F to 104°F)
1. To ensure that the slots in the BCN flanges align with the holes in the
rack:
a. Measure at least 28 in. (71 cm) of free vertical space inside the rack
and mark the spot.
b. Locate the next two holes below this spot that have a 0.625-in. space
between them.
Note: The hole pattern shown in Figure 3-2 repeats on the rail.
3-8 109352-E Rev. A
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Installing the BCN and BCN RLC
Router
Flange
Rack Post
"
2.375"
1.750"
1.125"
0.625"
Mounting Hole Locations
Angle Bracket Supporting Router Mounted on Back of  Rack Post
Figure 3-2. Locating the Mounting Holes
Mount the angle brackets in the area indicated by Figure 3-3.
2. a. If your rack does not have threaded holes, place cage nuts over the
holes before you attach the angle brackets.
109352-E Rev. A 3-9
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Installing and Maintaining BN Platforms
b. Align the edge of the brackets to the rack:
-- If the interior of the rack contains horizontal bracket supports, align the angle bracket with the horizontal bracket support.
-- If the interior of the rack does not contain horizontal bracket supports, brace the angle bracket between the side rails.
You must orient the brackets that support the hardware platform as shown in Figure 3-3. Ensure that you can adjust the bracket vertically along its slots before you secure it.
c. Insert two 10-32 screws through each bracket’s slotted holes and into
the holes in the supports of the rack. Do not tighten the screws.
d. Adjust each bracket vertically along the bracket slots until the
bracket is 1.4 in. (3.6 cm) below the center of one hole in the front vertical support of the rack.
e. Tighten the screws with a screwdriver until secure.
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Installing the BCN and BCN RLC
Height 28 in. (71 cm) Minimum
Depth 28 in. (71 cm) Minimum
Screw
(2 Places)
Bracket
(2 Places)
Rail
Cage nut
If rack rail is not threaded, attach cage nut
Figure 3-3. Attaching Brackets to Support the BCN
109352-E Rev. A 3-11
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Installing and Maintaining BN Platforms

Installing the BCN

Warning: The BCN weighs approximately 214 lb (97.07 kg). Do not attempt
to lift it by yourself. Use a team of people or specialized lifting equipment. Before placing the BCN in the rack, ensure that all equipment already inside the rack is secure.
Prepare the BCN for installation as follows:
1. Remove each power module (Figure 3-4). Removing the power modules
significantly reduces the weight of the BCN. You can remove the power modules while the BCN is still on its shipping platform.
a. Using a flat-head screwdriver, loosen the captive screw until the
power module disengages.
b. Grasp the handle and pull the power module out of the BCN.
Power OK
Screw
Figure 3-4. Removing a Power Module from the BCN
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Installing the BCN and BCN RLC
Lift and remove the BCN from its shipping platform and place it gently
2.
on the floor.
Caution: You can damage the front bezel if you attempt to remove it while the
BCN is positioned on its shipping platform.
3. Using both hands, pull on the top of the front bezel and remove it from
the chassis (F
B A C K B O N E N O D E
igure 3-5).
Pull Top
POWER RUN BOOT DIAG
RESET
Figure 3-5. Removing the Front Bezel from the BCN
109352-E Rev. A 3-13
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Installing and Maintaining BN Platforms
Install the BCN in the electronic enclosure rack as follows:
Note: Before putting the BCN in the rack, ensure that the rack holes are
threaded. If they are not threaded, place cage nuts over the front vertical support holes.
1. Insert the BCN in the rack as shown in Figure 3-6. Make sure the BCN
rests squarely on the angle brackets.
Rail
Cage nut
Screw
(4 Places)
If rack rail is not threaded,  attach cage nut.
Figure 3-6. Mounting the BCN to the Rack
3-14 109352-E Rev. A
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Installing the BCN and BCN RLC
Insert and tighten the screws with a screwdriver until secure.
2.
Replace the front bezel as follows:
1. Align the mounting retainers on the inside of the bezel with the holes on
the front of the electromagnetic compatibility (EMC) shield.
2. Push the sides of the bezel into place.
Insert each power module as follows:
1. Grasp the handle and guide the module into the desired slot along the
side guides and gently insert the module until the power supply connector comes into contact with the connector on the power supply backplane.
Note: Stop when you feel resistance. The power module does not fully insert
until you tighten the thumbscrew.
2. Using a flat-head screwdriver, turn the captive screw until the power
module seats firmly.
The Power OK LED lights when the BCN powers on and the power module fully engages.
3. Turn the captive screw an additional 1/4 turn. Do not overtighten the
screw.

Powering On the BCN or BCN RLC

Power on the BCN or BCN RLC as follows:
1. Ensure that the power switch(s) on the rear panel is in the OFF (down or
0) position.
2. Connect the power plug(s) to the AC inlet(s) on the BCN rear panel.
3. Insert the power plug(s) into the appropriate wall receptacle.
Refer to “Electrical Requirements” earlier in this chapter.
4. Turn the power switch(s) to the ON (up or 1) position.
109352-E Rev. A 3-15
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Installing and Maintaining BN Platforms
BCN
RML 7 6 5 4 3 2 1
Power OK
Power supply
Power OK
Power supply
Power OK
Power supply
Power OK
Power supply
BCN RLC
10 9 8 SRML 7 6 5 4 3 2 1
# 4
# 3
# 2
# 1
Power OK
Power supply
Power OK
Power supply
Power OK
Power supply
Power OK
Power supply
# 4
Source
B
# 3
# 2
Source
A
# 1
AC
Input
AC
Source A
Source
A
Source
B
Source B
AC
Figure 3-7. BCN and BCN RLC Power Systems
Note: F or the BCN RLC, only the tw o bottom po wer supplies are powered by the
Source A power cord, and only the two top power supplies are powered by the Source B power cord.
Verify that the POWER OK LED on each power module is on.
5.
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Installing the BCN and BCN RLC
If an LED is not on, replace the power module. (Refer to Chapter 5, “Hot-Swapping Hardware Components,” for hot-swap procedures.)
6. Verify that air is flowing from the cooling fans and out through the top of
the BCN.
1
Source
A
0
Source
B
BN0083A
Figure 3-8. BCN RLC Power Source and Switches
Note: If you cannot feel air flow from the BCN vents, if the POWER and
DIAG LEDs remain off, or if the DIAG LED remains on, turn the power switch(es) at the rear of the BCN to the OFF position. Wait 1 minute and then turn the power switch(es) to the ON position. If the problem persists, contact the Bay Networks Technical Response Center.
After you power on the BCN, each routing engine automatically initiates a diagnostic test to verify proper board function.

LED Activation Sequence

The LEDs on the front panel of the BCN (Figure 3-9) activate while the BCN initializes and runs through its diagnostic tests.
109352-E Rev. A 3-17
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Installing and Maintaining BN Platforms
Indicates power OK
Indicates router software is executing
Indicates one or more slots are booting
Indicates diagnostic test execution or node failure
Initializes (boots) the system
Figure 3-9. BCN Front-Panel LEDs
POWER RUN BOOT
DIAG
RESET
The LEDs typically activate in the following order (the sequence may vary slightly or overlap):
1. The POWER and DIAG LEDs turn on.
When on, the POWER LED indicates that the power supply voltages are all within normal limits. If a power module is not operational, the POWER LED remains off. Check the power modules on the rear panel of the BCN to determine which is not operational. The Power OK LED on each power module remains on under normal operation. Ensure that the power module is firmly seated within its slot. If it is, refer to Chapter 5, “Hot-Swapping Hardware Components,” for instructions on how to replace a power module.
For the BCN RLC, both AC Sources (A + B) must be present before the POWER LED will be on.
When on, the DIAG LED indicates diagnostic testing on one or more modules. After a successful test, the DIAG LED turns off. The DIAG LED remains on if a diagnostic test does not end successfully for any given slot.
2. The BOOT and RUN LEDs turn on.
When on, the BOOT LED indicates the initialization and loading of software by one or more modules.
When on, the RUN LED indicates that system software is running on one or more modules. The RUN LED remains on while the BCN is operating normally.
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Installing the BCN and BCN RLC
The BCN indicates a successful start-up by turning off the BOOT LED. The POWER and RUN LEDs remain on. Refer to Chapter 6, “Switches and LEDs,” for a complete explanation of all Backbone Node LEDs.
T o acti vate the BCN on your IP netw ork, refer to Quick-Starting Routers and BNX
Platforms (router software), or Configuring an Interface for Network Management (BayStream software).
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Installing and Maintaining BN Platforms
Establishing a Local or Remote Connection to the BCN
You can cable a BCN to an ANSI console or a PC to establish a local Technician Interface session, or to a modem to establish a remote session.
Note: Bay Networks offers the cables for console connection. If you plan to
build your own cables, or if you want to order additional cables, refer to Cable Guide for Routers and BNX Platforms (router software) or Cable Guide
(BayStream software).

Local Connection

Cable the BCN to an ANSI console as follows:
1. Power on the console and set its operating parameters as shown in
Table 3-8.
See your console user manual for instructions on how to set these operating parameters.
Table 3-8. Console Operating Parameters
Parameter Value
Baud rate 9600 Data bits 8 Stop bits 1 Parity None
2. Insert the male end of the cable (Order No. 7525) into the CONSOLE
port of the System Resources Module-Link (SRM-L) Module
igure 3-10).
(F
The SRM-L resides in Slot 7 of the BCN rear panel.
3. Insert the female end of the cable into the ANSI console communications
port (Figure 3-8).
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Installing the BCN and BCN RLC
SRM-L (Slot 7)
SRML
891011121314
SYNC
SYNC
SYNC
QENET
CEPT-E1
FAIL
SEND
RGV
RSIG
RLOS
RRA
E1-2
E1-1
RSIG
RLOS
RRA
SEND
RCV
75 OHM
HSSI
CEPT-E1
5280
FAIL
FAIL
SEND
COM4
RLSD4
RGV
NSRT
RSIG
RLOS
RRA
E1-2
COM 3
E1-1
RSIG
RLOS
COM2
RRA
RLSD2
SEND
RCV
75 OHM
COM 1
SRML
5280
5280
FAIL
FAIL
FAIL
FAIL
VCC
JTAG
COM4
COM4
XCVR1
RLSD4
RLSD4
COM1
NSRT
NSRT
TA
CA
VCC
COM 3
COM2 RLSD2
COM 1
01
COM 3
XCVR2
12V 2
12V 1
COM2
XCVR3
RLSD2
CONSOLE
COM 1
XCVR4
2
13456
QENET
QENET
FDDI
FDDI
FDDI
FDDI
FAIL
FAIL
FAIL
FAIL
FAIL
FAIL
XCVR1
XCVR1
PHY A
PHY A
PHY A
PHY A
XCVR2
XCVR2
PHY B
PHY B
PHY B
PHY B
BYPASS
BYPASS
BYPASS
BYPASS
SP
SP
SP
XCVR3
XCVR3
XCVR4
XCVR4
SP
B A
B A
B A
B A
SDL1 L2L3 TX SD L1L2L3 TX
SDL1 L2L3 TX SD L1L2L3 TX
SDL1 L2L3 TX SD L1L2L3 TX
SDL1 L2L3 TX SD L1L2L3 TX
Power OK
Power OK
Power OK
Power OK
Console port
Figure 3-10. Cabling the BCN to a Console

Remote Connection

Note: Before you replace the local console connection with a modem
connection, you must use the T echnician Interf ace to configure the BCN initial IP network interface. To activate the BCN on your IP network, refer to
Quick-Starting Routers and BNX Platforms (router software), or Configuring an Interface for Network Management (BayStream software).
ANSI console communications port
Cable the BCN to the modem as follows:
1. Power on and configure the modem as shown in Table 3-9.
Refer to the modem user documentation instructions on configuring your modem.
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Installing and Maintaining BN Platforms
Table 3-9. Modem Operating Parameters
Parameter Setting
Baud rate 9600 or less Auto answer Set on
Clear to Send (CTS) signal Always ON Data Terminal Ready (DTR) signal DTR signal fail-disconnect enabled (return
Data Carrier Detect (DCD) signal DCD signal on while carrier present (the
Local character echo OFF Supervisory functions OFF Data Set Ready (DSR) signal ON
2. If you have not already done so, remove the cable connector from the
CONSOLE port of the System Resource Module-Link (SRM-L).
n
rings with DTR active
(
n
must be greater than 0)
to command mode, auto-answer off)
node uses DCD to detect modem disconnect)
The SRM-L resides in Slot 7 of the BCN rear panel.
3. Insert one end of the modem cable (Order No. 77850) into the
SRM-L CONSOLE port.
Note: The console cable and the modem cable both connect to the BCN using
the CONSOLE port.
4. Insert the other end of the cable into the communications port on the
modem.
T o configure the BCN CONSOLE port for modem operation, refer to Configuring Routers (router software) or Getting Started with Site Manager (BayStream
software).
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Chapter 4
Accessing the Interior
Experienced network operators can safely perform the user-serviceable procedures that are described in Chapter 5. Only authorized Bay Networks service technicians can perform other procedures, not described in this book.
Before you can perform user-serviceable procedures, you must access the interior of your Backbone Node hardware platform, as follows:
Remove the front bezel.
Connect the antistatic wrist strap to the hardware platform.
Caution: Always use the wrist strap to avoid damage to electronic
components when handling hardware modules.
Remove the electromagnetic compatibility (EMC) shield from the front panel to access the interior.
Remove and install an air flow module. (Refer to the BLN and BCN Fuse Service Manual for instructions.)
Depending on your hardware platform model, you need a Phillips screwdriver, standard screwdriver, or both to replace hardware components.
109352-E Rev. A 4-1
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Installing and Maintaining BN Platforms

Removing and Replacing the Front Bezel

You must remove the front bezel (front cover) of BLN, BLN-2, and BCN routers to access their interiors.
Note: Keep the front bezel on during normal operation to comply with air flow
requirements.
Remove the front bezel from the BLN (F
igure 4-1) and BLN-2 (Figure 4-2) as
follows:
1. Using both hands, pull the bottom of the front bezel forward.

2. Remove the bezel from the chassis.

Replace the BLN and BLN-2 front bezel as follows:
1. Align the mounting retainers on the inside of the bezel with the holes on
the front of the EMC shield.

2. Push the sides of the bezel into place.

POWER
RESET RUN BOOT
BACKBONE NODE
DIAG
Pull Bottom
Figure 4-1. Removing the BLN Front Bezel
4-2 109352-E Rev. A
Page 87
Accessing the Interior
POWER RUN
RESET
BOOT
B A C K B O N E N O D E
DIAG
Pull Bottom
Figure 4-2. Removing the BLN-2 Front Bezel
Remove the front bezel from the BCN (Figure 4-3) as follows:
1. Using both hands, pull the top of the front bezel forward.

2. Remove the bezel from the chassis.

Replace the BCN front bezel as follows:
1. Align the mounting retainers on the inside of the bezel with the holes on
the front of the EMC shield.

2. Push the sides of the bezel into place.

109352-E Rev. A 4-3
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Installing and Maintaining BN Platforms
B A C K B O N E N O D E
Pull Top
POWER RUN BOOT DIAG
RESET
Figure 4-3. Removing the Front Bezel from the BCN
4-4 109352-E Rev. A
Page 89

Attaching the Antistatic Wrist Strap

Each BLN, BLN-2, BCN, and BCN RLC ships with an antistatic wrist strap. You must wear an antistatic strap whenever you
Remove, install, and handle memory cards
Remove, install, configure, and handle hardware modules, including Fast Routing Engine (FRE or FRE-2) modules, the SRM-F (System Resource Module-Front), or any link modules
Remove and replace module fuses
The antistatic wrist strap directs the discharge of static electricity from your body to the chassis of the hardware platform, thereby avoiding discharge to, and possible damage of, sensitive electronic components.
Caution: Electrostatic discharge can damage hardware. Follow the procedure
in this section to protect your equipment from damage.
Accessing the Interior
For BLN, BLN-2, BCN, and BCN RLC routers, locate the antistatic wrist strap on the inside of the front bezel (front panel). Refer to “Removing and Replacing the Front Bezel” earlier in this chapter for instructions.
Attach the antistatic wrist strap as follows:

1. Remove the front bezel.

2. Remove the antistatic wrist strap from the package attached to the back
of the front bezel.
3. Verify that the cable attaches to the wrist strap.

4. Place the strap around your wrist.

5. Adjust the strap to ensure that the metal buckle inside the strap contacts
your skin.
6. Insert the jack into the antistatic receptacle (Figure 4-4).
109352-E Rev. A 4-5
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Installing and Maintaining BN Platforms
Figure 4-4. Connecting the Wrist Strap Jack to the Antistatic Receptacle

Removing and Replacing the EMC Shield

You must remove the electromagnetic compatibility (EMC) shield to access the memory cards and FRE or FRE-2 modules in the Backbone Node routers.
Caution: Do not operate a hardware platform with the EMC shield removed
for more than 5 minutes. Without the EMC shield, the hardware platform may overheat. In addition, the BCN contains temperature sensors that may not detect an overheating condition without the shield in place.
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Accessing the Interior
Remove the EMC shield (Figure 4-5) as follows:
1. Remove the front bezel. (Refer to “Removing and Replacing the Front
Bezel” earlier in this chapter for instructions.)
2. Loosen the captive thumbscrews that fasten the EMC shield to the
chassis.

3. Remove the EMC shield from the chassis.

Replace the EMC shield as follows:
1. Position the EMC shield in front of the chassis.
2. Tighten the captive thumbscrews that fasten the EMC shield to the
chassis.
To replace the front bezel, the EMC shield must be in place. Refer to “Removing and Replacing the Front Bezel” earlier in this chapter for instructions.
109352-E Rev. A 4-7
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Installing and Maintaining BN Platforms
BACKBONE NODE
B A C K B O N E N O D E
POWER RUN
RESET
BOOT DIAG
WARNING
HIGH ENERGY PRESENT
Power unit OFF and disconnect power cord
BEFORE accessing this product.
Refer to your installation/service manual for instructions
ATTENTION
EQUIPEMENT SOUS HAUTE TENSION
Debrancher le cordon d’alimentation avant
d’enlever le couvercle.
Voir les instructions du fabricant
!
VORSICHT!
HOCHSPANNUNG!
VOR jeglicher Intervention Gerat
ABSTELLEN und Netzstecker herauszuziehen!
Anleitungen in Installations-/Instandhaltungshandbuch beachten!
PELIGRO
ALTO TENSION
APAGUESE la unidad y desconectese del tomacrriente
ANTES de abrir la unidad.
Veanse las instrucciones del fabricante en el manual de instalacion/servicio
EMC Shield
Thumbscrews
(7 Places)
POWER RUN
RESET
BOOT DIAG
EMC Shield
Thumbscrews
(10 Places)
Figure 4-5. BLN and BCN EMC Shields
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Page 93

Removing and Installing an Air Flow Module

Bay Networks ships an air flow module in each empty FRE/FRE-2 slot in the front of all Backbone Node routers. Each air flow module redirects cool air to the adjacent FRE or FRE-2 module.
Figure 4-6 illustrates the location of an air flow module. You must remo v e air flo w modules when replacing them with FRE or FRE-2 modules. (Refer to Chapter 5 for instructions on replacing FRE or FRE-2 modules.)
Accessing the Interior
BACKBONE NODE
POWER RUN BOOT DIAG
RESET
Power unit OFF and disconnect power cord
Refer to your installation/service manual for instructions
EQUIPEMENT SOUS HAUTE TENSION
Debrancher le cordon d’alimentation avant
WARNING
HIGH ENERGY PRESENT
BEFORE accessing this product.
ATTENTION
d’enlever le couvercle.
Voir les instructions du fabricant
!
VORSICHT!
HOCHSPANNUNG!
VOR jeglicher Intervention Gerat
ABSTELLEN und Netzstecker herauszuziehen!
Anleitungen in Installations-/Instandhaltungshandbuch beachten!
PELIGRO
ALTO TENSION
APAGUESE la unidad y desconectese del tomacrriente
ANTES de abrir la unidad.
Veanse las instrucciones del fabricante en el manual de instalacion/servicio
Board Retainer Bracket (1 Screw)
Figure 4-6. Air Flow Module Installed in a Hardware Platform
Remove an air flow module as follows:

1. Remove the front bezel.

(Refer to “Removing and Replacing the Front Bezel” earlier in this chapter.)

2. Remove the EMC shield.

(Refer to “Removing and Replacing the EMC Shield” earlier in this chapter.)
3. Remove the board retainer bracket (BLN and BLN-2 only).
Air Flow Module
Refer to Figure 4-6.
a. Remove the screw at the bottom of the bracket.
A single screw fastens the bottom of the board retainer bracket to the chassis.
109352-E Rev. A 4-9
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Installing and Maintaining BN Platforms
b. Remove the bracket.
4. Pull the front of the air flow module forward to remove it (Figure 4-7.)
Insert an air flow module as follows:
1. Grasp the sides of the air flow module (Figure 4-8).
2. Correctly position the back edge of the air flow module to accommodate
the slot power connector and locating pin.
(For BCNs, hold the air module vertically, with the top edge up as noted in Figure 4-8.)
3. Insert the air flow module as shown in Figure 4-6.
(For BCNs, insert the air module vertically, with the top edge up as noted in Figure 4-8.)
4. Replace the board retainer bracket (BLN and BLN-2 only), EMC shield,
and front bezel.
BACKBONE NODE
POWER RUN
BOOT
DIAG
RESET
Figure 4-7. Inserting or Removing an Air Flow Module
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Accessing the Interior
This Edge Up for BLN
Front Edge
This Edge Up for BCN
Space for Power Connector
Space for Locating Pin
Back Edge of Air Flow Module
Figure 4-8. Grasping the Air Flow Module
109352-E Rev. A 4-11
Page 96
Page 97
Chapter 5
Hot-Swapping Hardware Components
Depending on your hardware platform, you can replace the following user-serviceable hardware components:
Memory cards
Hardware modules
-- Link modules
-- Routing Engine (FRE/FRE-2/ARE) modules
-- System Resource Module-Link (SRM-L)
-- System Resource Module-Front (SRM-F)
Power supply modules
Fan trays
Hot-swap capability allows experienced users to replace these components while the power is on. Refer to Table 5-1 for a list of the components that are user-serviceable for your hardware platform.
Table 5-1. User-Serviceable Components
BLN (Backbone
Component
Memory Cards Y Y Y Link Modules Y Y Y Routing Engine Modules Y Y Y SRM-L Modules Y Y Y
Link Node)
BLN-2 (Backbone Link Node-2)
BCN (Backbone Concentrator Node)
(continued)
109352-E Rev. A 5-1
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Installing and Maintaining BN Platforms
Table 5-1. User-Serviceable Components
BLN (Backbone
Component
SRM-F Modules Y Y Y Power Supplies N Y Y Fans N Y N
Link Node)
BLN-2 (Backbone Link Node-2)
(continued)
BCN (Backbone Concentrator Node)
Depending on your model, you will need a Phillips screwdriver, a standard screwdriver, or both to replace hardware components.

Replacing Flash and PCMCIA SRAM Memory Cards

This section describes how to remove and replace a Flash memory card or a PCMCIA SRAM memory card (Order No. 75049 or 77014). Each BN must be equipped with a minimum of one 4-MB Flash memory card or one PCMCIA SRAM memory card. Each BN supports a maximum configuration of one Flash card or PCMCIA SRAM card per FRE module. You install additional PCMCIA SRAM cards to provide redundancy, add storage capacity, and/or collect Frame Relay Switch and SMDS Switch billing data.
Note: Frame Relay Switch and SMDS Switch billing data must be collected
on a dedicated PCMCIA SRAM memory card. Consequently, simultaneous support for both Frame Relay Switch and SMDS Switch billing requires a minimum of two SRAMs: one for Frame Relay billing and a second for SMDS billing. The software image, other executable files, and configuration files are stored on the Flash memory card.
When you remove a Flash card or PCMCIA SRAM card, the non-volatile file system (NVFS) disables access to the card. When you insert and format a Flash card or PCMCIA SRAM card or insert a formatted Flash card or PCMCIA SRAM card, the NVFS automatically provides access to the card.
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Hot-Swapping Hardware Components
Memory Card Read-Write Protect Switch
Memory cards are read-write protected. To change the protection on a memory card, you must physically remove the card from the BayStream hardware, change the protection, and reinsert the card. Failure to adhere to this sequence can cause unpredictable and undesirable consequences.
Use the following procedures to remove and replace a Flash memory card or a PCMCIA SRAM memory card from a BN.
Caution: Electrostatic discharge can damage hardware. Attach the antistatic
strap to your wrist and connect it as described in Chapter 4 before you remove or install a memory card.
To remove a Flash or PCMCIA SRAM memory card:

1. Remove the front bezel.

2. Remove the EMC shield.

3. Release the memory card by pressing the ejector button on the FRE or
FRE-2 module (F

4. Pull the memory card toward you.

109352-E Rev. A 5-3
igure 5-1).
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Installing and Maintaining BN Platforms
FRE/FRE-2/ARE Processor Module or Memory Card Daughterboard
Memory Card
Card Receptacle
Ejector Button
Read-Write Protect Switch
Figure 5-1. Removing a Flash or PCMCIA SRAM Memory Card
To install a Flash or PCMCIA SRAM memory card:
1. Position the card with the label facing up and the INSERT arrow
pointing toward the card receptacle.

2. Insert the card into the card receptacle.

3. Gently push the card until it fits snugly into place.

4. Replace the EMC shield.

5. Replace the front bezel.

If the memory card is new , and you did not obtain it from Bay Netw orks, you must format the card before attempting to write to it. Use Site Manager or the Technician Interface to format the memory card.
5-4 109352-E Rev. A
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