SMC Networks TigerStack 3312TA,TigerStack 3326TA,TigerStack 3314T,TigerStack 3328T,TigerStack 3306BC ,TigerStack 3306FC,TigerStack 3328TELCO User Manual

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User Guide
Unmatched Bandwidth Scalability for Ethernet Workgroups
TigerStack
SwitchReady
Multi-Segment Stackable Ethernet Hubs
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USER GUIDE
FOR
SMC’S
TIGERSTACK
FAMILY OF ETHERNET HUBS
March 1997
Pub. # 900.166 Rev. A
Standard Microsystems Corporation
80 Arkay Drive
Hauppauge, New York 11788
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Information furnished by Standard Microsystems Corporation (SMC) is believed to be accurate and reliable. However, no responsibility is assumed by SMC for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SMC. SMC reserves the right to change specifications at any time without notice.
Copyright © 1997 by
Standard Microsystems Corporation
Hauppauge, New York.
All rights reserved. Printed in U.S.A.
Trademarks:
SMC and Standard Microsystems are registered trademarks; and TigerStack, TigerHub and EliteView are trademarks of Standard Microsystems Corporation. Other product and com­pany names are trademarks or registered trademarks of their respective holders.
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Limited Warranty
HARDWARE: Standard Microsystems Corporation (“SMC”) warrants its hub
products to be free from defects in workmanship and materials, under normal use and service, for the following length of time from the date of purchase from SMC or its Authorized Reseller:
TigerStack Hubs (excluding Power Supply and Fan) . . .. . . .. . .Limited Lifetime
TigerStack Power Supply and Fan . . . . . . . . . . . . . . . . . . . . . . . . . .Five Years
If the product does not operate as warranted during the applicable warranty period, SMC shall, at its option and expense, repair the defective product or part, deliver to Customer an equivalent product or part to replace the defective item, or refund to customer the purchase price paid for the defective product. All products that are replaced will become the property of SMC. Replacement products may be new or reconditioned. Any replaced or repaired product or part has a ninety (90) day warranty or the remainder of the initial warranty period, whichever is longer.
SMC shall not be responsible for any custom software or firmware, configura­tion information, or memory data of Customer contained in, stored on, or inte­grated with any products returned to SMC pursuant to any warranty.
LIMITED LIFETIME: TigerStack hubs have a standard three-year warranty. If you wish to extend your three-year warranty on this unit to a lifetime warranty, please complete and return the enclosed product registration card within 90 days of purchase from SMC or its Authorized Reseller. Failure to complete and return this card does not affect the standard, three-year warranty. After registra­tion, any defective TigerStack hub will be repaired or replaced at SMC’s option.
SOFTWARE: SMC warrants that the software programs licensed from it will per­form in substantial conformance to the program specifications for a period of ninety (90) days from the date of purchase from SMC or its Authorized Reseller. SMC warrants the magnetic media containing software against failure during the warranty period. No updates are provided. SMC’s sole obligation hereunder shall be (at SMC’s discretion) to refund the purchase price paid by Customer for any defective software products or to replace any defective media with soft­ware which substantially conforms to SMC’s applicable published specifications. Customer assumes responsibility for the selection of the appropriate applica­tions program and associated reference materials. SMC makes no warranty that its software products will work in combination with any hardware or applica­tions software products provided by third parties, that the operation of the software products will be uninterrupted or error free, or that all defects in the software products will be corrected. For any third party products listed in the SMC software product documentation or specifications as being compatible, SMC will make reasonable efforts to prove compatibility, except where the non-compatibility is caused by a “bug” or defect in the third party’s product.
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STANDARD WARRANTY SERVICE: Standard warranty service for hardware products may be obtained by delivering the defective product, accompanied by a copy of the dated proof of purchase, to SMC’s Service Center or to an Authorized SMC Service Center during the applicable warranty period. Standard warranty service for software products may be obtained by telephoning SMC’s Service Center or an Authorized SMC Service Center, within the warranty period. Products returned to SMC’s Service Center must be pre-authorized by SMC with a Return Material Authorization (RMA) number marked on the out­side of the package, and sent prepaid, insured, and packaged appropriately for safe shipment. The repaired or replaced item will be shipped to Customer, at SMC’s expense, not later than thirty (30) days after receipt by SMC.
WARRANTIES EXCLUSIVE: IF AN SMC PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER’S SOLE REMEDY SHALL BE REPAIR, REPLACEMENT OR REFUND OF THE PURCHASE PRICE PAID, AT SMC’S OPTION. THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE, INCLUDING WARRANTIES OR CONDITIONS OF MERCHANT­ABILITY AND FITNESS FOR A PARTICULAR PURPOSE. SMC NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION, MAIN­TENANCE OR USE OF ITS PRODUCTS.
SMC SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THE ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER’S OR ANY THIRD PERSON’S MISUSE, NEGLECT, IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO REPAIR, OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING, OR OTHER HAZARD.
LIMITATION OF LIABILITY: IN NO EVENT, WHETHER BASED IN CONTRACT OR TORT (INCLUDING NEGLIGENCE) SHALL SMC BE LIABLE FOR INCIDEN­TAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE, LOSS OF BUSINESS, OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR INTER­RUPTION OF ITS PRODUCTS, EVEN IF SMC OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. NOTHING HEREIN SHALL HAVE THE EFFECT OF LIMITING OR EXCLUDING SMC’S LIABILITY FOR DEATH OR PERSONAL INJURY CAUSED BY NEGLIGENCE.
Some states do not allow the exclusion of implied warranties or the limitation of incidental or consequential damages for consumer products, so the above limitations and exclusions may not apply to you. This warranty gives you spe­cific legal rights which may vary from state to state. Nothing in this warranty shall be taken to affect your statutory rights.
Standard Microsystems Corporation
80 Arkay Drive
Hauppauge, NY 11788
516-273-3100
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Compliances............................................................ v
1 About the Hubs................................................ 1
Benefits.................................................................................. 2
Features.................................................................................. 5
2 Installing.......................................................... 7
Locating the Hub................................................................... 8
Equipment Checklist............................................................. 8
Slide-in Modules.................................................................... 9
Rack Mounting ...................................................................... 10
Desktop or Shelf Mounting .................................................. 12
Stacking.................................................................................. 13
Connecting Power................................................................. 15
3 Connecting...................................................... 17
Making Network Connections.............................................. 18
Connecting to Twisted-Pair Cabling..................................... 21
Connecting to Thin Coax Cabling........................................ 26
Connecting to Thick Coax Cabling ...................................... 27
Connecting to Fiber Cabling................................................. 28
4 Segmenting...................................................... 29
The Segmentation Concept................................................... 30
Segmenting the Hub ............................................................. 34
5 Troubleshooting.............................................. 37
Status/Diagnostic LEDs ......................................................... 38
Testing the Installation.......................................................... 41
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TABLE OF CONTENTS
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A Specifications.................................................. 43
TigerStack 3312TA................................................................. 44
TigerStack 3326TA................................................................. 44
TigerStack 3314T................................................................... 45
TigerStack 3328T................................................................... 45
TigerStack 3338TELCO.......................................................... 46
TigerStack 3306BC ................................................................ 46
TigerStack 3306FC................................................................. 47
All TigerStack Hubs............................................................... 47
Stacking Cable....................................................................... 48
B Cables............................................................... 49
Types/Connectors ................................................................. 50
Cable Specifications .............................................................. 51
Extended Distance ................................................................ 53
10BASE-T Pin Assignments................................................... 54
AUI Pin Assignments............................................................. 63
Index........................................................................ 65
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TABLE OF CONTENTS
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List of Figures
TigerStack 3312TA................................................................. 4
TigerStack 3326TA................................................................. 4
Removing the Screws............................................................ 10
Attaching the Brackets.......................................................... 11
Installing the Hub in a Rack................................................. 11
Attaching the Adhesive Feet................................................. 12
Stacking the Hubs ................................................................. 14
Power Connector on Rear of Hub ....................................... 15
Attaching a Transceiver to the AUI Port.............................. 19
Crossover Buttons ................................................................. 21
10BASE-T Connections ......................................................... 23
Wiring Closet Connections via RJ-45 Connectors................ 24
Wiring Closet Connections via Telco Connectors............... 25
Thin Coax Connection via BNC Port ................................... 26
Thick Coax Connection via AUI Port................................... 27
Duplex Fiber Connections via Dual ST Port........................ 28
3326TA Segments A, B, C, and D......................................... 30
3328T Segments A, B, C, and D........................................... 30
3328TELCO Segments A, B, C, and D.................................. 30
3306BC Segments A and B................................................... 30
3306FC Segments A and B.................................................... 30
Segmenting the Stack............................................................ 31
3326TA Segment Switches A, B, C, and D........................... 32
3328T Segment Buttons A, B, C, and D............................... 32
3328TELCO Segment Buttons A, B, C, and D ..................... 32
3306BC Segment Buttons A and B....................................... 32
3306FC Segment Buttons A and B ....................................... 33
Linking 10BASE-T Segments Through a Switch .................. 33
Segmenting the Hubs............................................................ 35
3312TA Front Panel LEDs ..................................................... 38
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TABLE OF CONTENTS
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3326TA Front Panel LEDs ..................................................... 38
3328T Front Panel LEDs........................................................ 39
3328TELCO Front Panel LEDs.............................................. 39
3306BC Front Panel LEDs..................................................... 39
3306FC Front Panel LEDs ..................................................... 39
RJ-45 Connector Pin Numbers.............................................. 54
25-Pair Telco Connector Pin Numbers................................. 55
List of Tables
Crossover/Straight-Through Wiring Requirements.............. 22
RJ-45 Fixed Crossover and Uplink Ports.............................. 22
Segment Button/Switch Functions ....................................... 35
Front Panel LEDs................................................................... 40
Cable Types and Connectors................................................ 50
Twisted-Pair Link Segment Specifications............................ 51
AUI Cable Specifications....................................................... 51
Thick Coax Cable Specifications .......................................... 51
Thin Coax Cable Specifications............................................ 52
Duplex Fiber Cable Specifications ....................................... 52
Extended Distance Specifications......................................... 53
RJ-45 Pin Assignments .......................................................... 54
50-Pin Telco Pin Assignments .............................................. 56
Straight-Through RJ-45 Pin Assignments.............................. 57
Straight-Through 50-Pin Telco Pin Assignments.................. 58
Crossover RJ-45 Pin Assignments......................................... 60
Crossover 50-Pin Telco Pin Assignments............................. 61
AUI Pin Assignments............................................................. 63
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CONTENTS
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FCC A
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart B of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user, at his own expense, will be required to take whatever measures may be required to correct the interference.
Canada Department of Communications - Class A
This digital apparatus does not exceed the Class A limits for radio noise emis­sions from digital apparatus as set out in the interference-causing equipment standard entitled "Digital Apparatus", ICES-003 of the Department of Communications.
Cet appareil numérique respecte les limites de bruits radioélectriques applica­bles aux appareils numériques de Classe A prescrites dans la norme sur le matériel brouilleur : "Appareils Numériques", NMB-003 édictée par le ministère des Communications.
European Community
This information technology product was found to comply with EC General Directives 89/336/EEC and 73/23/EEC. An EC Declaration of Conformity was issued for this product by:
Standard Microsystems (Europe) Limited 2nd Floor, Building B, Berkshire Court, Western Road Bracknell, Berkshire RG12 1RE, United Kingdom
Japan VCCI Class 1
Australia AS/NZS 3548 (1995)
SMC contact for products in Australia is: SMC Australia Pty. Ltd., ACN 069 351 613
LVL 66 MLC Center Martin Place Sydney NSW 2000 Phone: 61-2-9238-2206 Fax: 61-2-9238-2220
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COMPLIANCES
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DO NOT PLUG A PHONE JACK CONNECTOR INTO ANY OF THE RJ-45 PORTS. THIS MAY DAMAGE THE DEVICE.
KUN FOR DATA. MÅ IKKE KOPLES TIL TELEFONNETTVERKET.
SÓLO PARA TRANSFERIR DATOS. NO ENCHUFAR EN LA LÍNEA TELEFÓNICA.
LES RACCORDEURS NE SONT PAS UTILISÉ POUR LE SYSTÈME TÉLÉFONIQUE.
VAIN TIEDONSIIRTOON. ÄLÄ KYTKE PUHELINLINJAAN.
SOLO PER DATI. NON COLLEGARE ALLE LINEE TELEFONICHE.
NUR FÜR DATENKOMMUNIKATION. NICHT AN TELEFONLEITUNG ANSCHLIESSEN.
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1
Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Stackable . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Segmentable . . . . . . . . . . . . . . . . . . . . . . . . 2
Scalable . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SNMP Manageable . . . . . . . . . . . . . . . . . . . 3
Easy to Install . . . . . . . . . . . . . . . . . . . . . . . 3
Available in a Wide Range of Models . . . . . . 3
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
All Models . . . . . . . . . . . . . . . . . . . . . . . . . 5
Models 3312TA and 3326TA . . . . . . . . . . . . . 6
CHAPTER 1
ABOUT THE HUBS
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Benefits
SMC’s TigerStack™hubs provide a powerful combination of scalable bandwidth, network management, and configuration options for building high-performance Ethernet networks. These multi-segment, stackable, workgroup hubs feature unsur­passed flexibility, allowing users to grow or modify their net­works as their needs change.
Several models are available, with a variety of port densities and a wide range of cabling options, to meet the needs of your particular installation.
Stackable
A single TigerStack hub supporting a small workgroup can be expanded to a stack of eight units with up to 224 ports. Since the entire stack is still counted as one logical repeater (one of the four repeater hops permitted between any pair of PCs), TigerStack hubs make it easier to configure the network.
For additional flexibility, all models can be mixed in the same stack, in any order or combination.
Segmentable
Each hub contains two or four repeater groups. These groups can be isolated from the stack to form independent 10 Mbps networks or collision domains. A fully configured stack of eight hubs can be segmented into up to 32 collision domains. Reducing the number of nodes on a LAN minimizes contention for the network and boosts the available bandwidth.
Scalable
Repeater groups, once isolated, can be interconnected via LAN switches. This TigerStack/switch combination allows band­width to be scaled to workgroups that need it.
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ABOUT THE HUBS
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SNMP Manageable
The optional Network Management Module (NMM) adds moni­toring, control, and fault isolation functions to the LAN. For economy, only a single NMM is needed to manage an entire stack, whether it‘s one segment or as many as 32. For flexi­bility, the NMM is field-installable and can be placed in any hub, not just the top- or bottom-most units. With the NMM, the stack can be managed in-band and out-of-band (both locally and remotely) using SMC’s EliteView™or any other SNMP-based manager.
Easy to Install
TigerStack hubs can be easily installed in a 19-inch equipment rack or on a desktop or shelf.
Available in a Wide Range of Models
TigerStack hubs are available with 10BASE-T ports for twisted­pair cabling, AUI ports for backbone or mixed media connec­tivity, BNC ports for thin coax cabling, and dual ST ports for fiber cabling. Their ports are segmentable into as many as four groups, depending upon the model.
The TigerStack family includes the following models:
TigerStack 3312TA — a two-segment hub with twelve
10BASE-T ports and two expansion slots for optional AUI, BNC, dual ST and 10BASE-T ports
TigerStack 3326TA — a four-segment hub with 26
10BASE-T ports and two expansion slots for optional AUI, BNC, dual ST and 10BASE-T ports
TigerStack 3314T — a two-segment hub with 14 10BASE-T
ports
TigerStack 3328T — a four-segment hub with 28 10BASE-T
ports
TigerStack 3306BC — a two-segment hub with six BNC
ports, one AUI port, and one 10BASE-T port
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ABOUT THE HUBS
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TigerStack 3306FC — a two-segment hub with six dual ST
ports, one AUI port, and one BNC port
TigerStack 3328TELCO — a four-segment hub with 28
10BASE-T ports: 24 ports on two Telco connectors and four ports on RJ-45 connectors
Since all the TigerStack hubs have the same footprint, only two — the TigerStack 3312TA and 3326TA — are shown below.
ABOUT THE HUBS
4
TigerStack 3312TA
TigerStack 3326TA
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Features
All Models
Push-buttons or switches to segment each hub into inde­pendent networks
Front panel LEDs for “status-at-a-glance” troubleshooting:
Power — one per hub
NMM — one per hub
Collision — one per segment
Segment —one per segment
Port Status (Link/Partition/Source) — one per port
Automatic port/segment partitioning and reconnection for physical level network management and fault tolerance
Internal transmit/receive crossover on all twisted-pair ports for connection to adapters with straight-through wiring
Crossover enable/disable function on one twisted-pair port in each segment to uplink to a LAN switch or cascade to another hub with straight-through wiring
Automatic polarity detection and correction on 10BASE-T receive pairs to correct miswiring and make connections simple and quick
Link integrity checking on all twisted-pair connections
Smart squelch digital noise filter on all 10BASE-T ports
Extended distance support for both 10BASE-T and thin coax cable
Jabber lock-up protection to prevent overly long transmissions
Rack-, table-, or wall-mount chassis design for installation flexibility
Internal, auto-ranging power supply
Reliable point-to-point connections
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ABOUT THE HUBS
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Models 3312TA and 3326TA
The following additional features are provided by Models 3312TA and 3326TA:
Optional Redundant Power Unit to minimize downtime in the event of an internal power supply failure
Two expansion slots for optional slide-in 10BASE-T, BNC, fiber and AUI modules
Larger segments — depending on the model, 14-, 21-, or 28­port segments may be formed by combining repeater groups
ABOUT THE HUBS
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CHAPTER 2
INSTALLING
7
Locating the Hub . . . . . . . . . . . . . . . . . . . . . . 8
Equipment Checklist . . . . . . . . . . . . . . . . . . . . 8
Package Contents . . . . . . . . . . . . . . . . . . . . 8
Optional Equipment . . . . . . . . . . . . . . . . . . 9
Required Rack-Mounting Tools . . . . . . . . . . 9
Slide-in Modules . . . . . . . . . . . . . . . . . . . . . . . 9
Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . 10
Desktop or Shelf Mounting . . . . . . . . . . . . . . . 12
Stacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Connecting Power . . . . . . . . . . . . . . . . . . . . . . 15
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Locating the Hub
The hub can be installed in a standard 19-inch equipment rack, or on a desktop or shelf. Be sure to follow the guidelines below when choosing a location:
Select a suitable location for the hub:
It should be accessible for installing, cabling, and main­taining the hub.
The temperature and humidity should be within the ranges listed in Appendix A.
The status LEDs should be clearly visible.
There should be adequate space (approximately two inches) on all sides for proper air flow.
Make sure twisted-pair cable is always routed away from power lines, fluorescent lighting fixtures, and other sources of electrical interference such as radios, transmitters, etc.
Make sure that a separate grounded power outlet is within 8 feet (2.44 m) of the hub and is powered from an indepen­dent circuit breaker. As with any equipment, using a filter or surge suppressor is recommended.
Equipment Checklist
Package Contents
Check that the following equipment is included in your package:
The TigerStack hub
Bracket Mounting Kit, containing two brackets and four screws for attaching the brackets to the hub
Four adhesive feet
This User Guide
One SMC Warranty Registration Card — be sure to complete and return this card within 90 days to extend the three-year warranty to a lifetime warranty
The appropriate power cord for your country — either US, Continental or UK
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INSTALLING
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Optional Equipment
The following equipment is not provided:
Stacking cable, order number SMC3300-CABLE — one is required for each hub you want to stack
Rack-mounting screws — four are required for each hub you want to mount in a rack
Required Rack-Mounting Tools
Be sure to have the following tools available when rack mount­ing your hub:
Screws for mounting the hub in a rack (not included)
A screwdriver (Phillips-head or flathead, depending on type of screws used)
Slide-in Modules
(Models 3312TA and 3326TA Only)
SMC’s TigerStack 3312TA and 3326TA hubs are equipped with two expansion slots (port 7, port 14) for slide-in modules. AUI, 10BASE2, 10BASE-T and 10BASE-F modules are available.
Port 7 is accessible from the front panel and port 14 is located on the rear of the hubs.
If you have purchased a slide-in module for port 7 and/or 14, install the module(s) now. Follow the installation instructions provided in the slide-in module package.
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INSTALLING
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Rack Mounting
Before rack mounting the hub, pay particular attention to the following factors:
Temperature: Since the temperature within a rack assem-
bly may be higher than the ambient room temperature, check that the rack-environment temperature is within the operating temperature range specified in Appendix A.
Mechanical Loading: Do not place any equipment on top
of a rack-mounted unit.
Circuit Overloading: Be sure that the supply circuit to the
rack assembly is not overloaded.
Grounding: Rack-mounted equipment should be properly
grounded. Particular attention should be given to supply connections other than direct connections to the mains.
To rack mount the hub:
1. Remove the two screws from the sides of the unit.
Removing the Screws
2. Attach the brackets using the screws provided in the Bracket Mounting Kit.
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INSTALLING
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Attaching the Brackets
3. Install the hub in the rack, using four rack-mounting screws (not provided).
Installing the Hub in a Rack
4. If stacking hubs, install the remaining hubs in the rack, one atop the other. Then go to “Stacking” later in this chapter.
5. If installing a single hub, go to “Connecting Power” at the end of this chapter.
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INSTALLING
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Desktop or Shelf Mounting
1. Attach the four adhesive feet to the bottom of the hub.
Attaching the Adhesive Feet
2. Set the hub on a flat surface near an AC power source, making sure there are at least two inches of space on all sides for proper air flow.
3. If stacking hubs, install four adhesive feet on each unit and place each hub squarely on top of the hub below. Then go to “Stacking” on the next page of this chapter.
4. If installing a single hub, go to “Connecting Power” later in this chapter.
INSTALLING
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Stacking
The hubs can be stacked as many as eight high, and all models can be mixed in the same stack, in any order or combination.
Note: Although hubs can be stacked after being connected to
a power source, it is not recommended as a safe net­working practice.
Before stacking the hubs, pay attention to the following guide­lines:
Be sure to have one stacking cable for each hub you want to stack. This cable (order number SMC3300-CABLE) is not provided with the hub, and must be ordered separately.
If an NMM is installed in one of the hubs, be sure to set the Unit ID switch on each hub in the stack to a unique number. See your NMM User Guide for instructions about setting the Unit ID switch.
To stack the hubs:
1. Locate the SCSI connectors labeled “A” and “B” on the rear of each hub (refer to the the illustration on the next page).
2. Attach one end of the stacking cable to the SCSI connector labeled “B” on the right hand side of the lower hub. Attach the other end of the cable to the left connector labeled “A” on the upper hub.
3. Repeat Step 2 until all the hubs (maximum eight) have been stacked.
4. Go to “Connecting Power” at the end of this chapter.
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INSTALLING
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Stacking the Hubs
INSTALLING
14
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Connecting Power
Note: It is recommended that the hubs be stacked before
power is applied.
To connect each hub to a power source:
1. Insert the power cable plug directly into the receptacle located at the back of the hub.
Power Connector on Rear of Hub
2. Plug the other end of the cable into the appropriate receptacle.
Note: For international use, you may need to change the AC
line cord. You must use a line cord set for the recepta­cle type in your country. The cord should be HAR­Certified, and the mark HAR should appear on the outer sheath or jacket, or on the insulation of one of the inner conductors. The female receptacle of the cord set must meet CEE-22 requirements. If you have any questions concerning the proper power cord to use, please con­tact your local SMC Supplier.
3. Check the front panel LEDs. At power on, the:
Power LED — lights and remains on.
NMM LED:
If the NMM is installed, this LED blinks green for a few seconds during power-on diagnostics, then turns solid green. If diagnostics fail, the LED blinks yellow.
If the NMM is not installed, the LED remains off.
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INSTALLING
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Segment LEDs — flash yellow, then change to the color
indicating the position of the Segment switch.
Port Status LEDs:
10BASE-T and Dual ST LEDs flash yellow and then
go off. Once testing is complete, these LEDs indicate port activity.
AUI and BNC LEDs turn green after the power-on
sequence and remain on until a data packet has been passed successfully. If the BNC port is not termi­nated, the BNC LED will light yellow and the port will partition due to excessive collisions.
Collision LEDs — turn yellow for a fraction of a sec-
ond, then go off. Once testing is complete these LEDs indicate network activity.
Refer to Chapter 5, “Troubleshooting,” for more information about the LEDs.
4. For TigerStack 3312TA and 3326TA Only – If you have
purchased one or more Redundant Power Units, connect them to these devices and to an AC power source now, fol­lowing the instructions included with the package.
INSTALLING
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Making Network Connections . . . . . . . . . . . . . 18
Directly . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Via Transceiver . . . . . . . . . . . . . . . . . . . . . . 18
The SMC 5 - 4 - 3 Rule . . . . . . . . . . . . . . . . 20
Connecting to Twisted-Pair Cabling . . . . . . . . . 21
Crossover Function . . . . . . . . . . . . . . . . . . . 21
Connecting Devices . . . . . . . . . . . . . . . . . . 22
Wiring Closet Connections . . . . . . . . . . . . . . 24
Connecting to Thin Coax Cabling . . . . . . . . . . 26
Connecting to Thick Coax Cabling . . . . . . . . . . 27
Connecting to Fiber Cabling . . . . . . . . . . . . . . 28
CHAPTER 3
CONNECTING
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Making Network Connections
Hubs are designed to link multiple workstations and other hubs to an Ethernet network.
Directly
Hubs can be joined directly to other network devices via their front-panel ports as long as both devices have one port with an identical connector.
For example, the TigerStack 3312TA with its twelve 10BASE-T ports and a slide-in BNC module can be:
cascaded to a LAN switch or another 10BASE-T hub via one of its two uplink (twisted-pair, switch-selectable crossover) ports
connected to a 10BASE-T adapter via one of its fixed crossover ports
cascaded to SMC’s TigerHub™FL6, since they each have a BNC port
attached directly to a thin coax backbone via its BNC port
Via Transceiver
If both devices have an AUI (Attachment Unit Interface) port (designated by the IEEE as the standard interface for 10 Mbps Ethernet networks), they may be joined with two identical transceivers* and a length of the appropriate type of cable.
For example, the TigerStack 3306BC hub (with its six BNC ports, one AUI port, and one 10BASE-T port) can be:
cascaded to another TigerStack 3306BC hub with two fiber transceivers that are joined with a fiber link segment, to span the distance between two buildings
* Transceivers are typically 2-port devices with one AUI connector and
one connector for a specific medium (RJ-45 for twisted pair, BNC for thin coax, or ST for fiber).
18
CONNECTING
Page 30
Caution:When attaching a BNC transceiver to an AUI port, be
sure to disable the transceiver’s SQE switch.
Even if only one of the devices has an AUI port, it can be joined to any port on an another device with the appropriate transceiver and cable.
For example, the TigerStack 3306FC (with its six fiber ports, one AUI port, and one BNC port) can be:
connected to any 10BASE-T adapter with a 10BASE-T trans­ceiver and a length of twisted-pair cable
To attach a transceiver to the AUI port:
1. Slide the hold-down clip on the AUI female D-Connector to the open position.
2. Attach the transceiver to the AUI female D-Connector.
3. Slide the clip back to the closed position.
Attaching a Transceiver to the AUI Port
19
CONNECTING
Page 31
The SMC 5 - 4 - 3 Rule
When making connections, check to be sure that you do not exceed the IEEE guidelines for Ethernet networks. The easiest way is with the SMC 5 - 4 - 3 Rule given below.
Note: This rule is completely consistent with the IEEE 802.3
specification.
20
CONNECTING
Between any two PCs or other stations on the network, there may be:
• up to 5 cable segments in series,
• up to 4 repeaters (hubs or multi-port concentrators),
• up to 3 populated cable segments, that is, segments attached to two or more PCs (coax networks only).*
* The remaining two segments are unpopulated; these are
known as inter-repeater links or IRLs. Remember, this dis­tinction between populated and unpopulated segments is significant for coax networks only.
Page 32
Connecting to Twisted-Pair Cabling
A twisted-pair cable segment is used for point-to-point connec­tions. With it, you can cascade a pair of hubs, link a hub to a LAN switch, or connect a hub to an adapter.
Crossover Function
Every twisted-pair connection must have a wiring crossover to transmit and receive data. This crossover can be implemented in the wiring or the device itself.
For convenience, the crossover is already built into the 10BASE-T ports that are labeled with an “X” — these are called fixed crossover ports. Adapters can be connected to these ports with straight-through cable.
Additionally, one twisted-pair port in each segment on the 10BASE-T TigerStack hubs, and the lone twisted-pair port on the thin coax model, features a crossover enable/disable button — these are called uplink or switch-selectable crossover ports. When the wiring crossover is disabled, other 10BASE-T hubs and LAN switches can be connected to these ports with straight-through cable.
The locations of the crossover buttons on the TigerStack 3326TA are shown below. Buttons for the other models appear in a similar position.
Crossover Buttons
21
CONNECTING
Page 33
When a port labeled with an “X” is connected to a device that does not support the crossover function, straight-through cabling can be used. However, when connecting two identical ports (that is, ports that either both support or do not support the crossover function), the crossover must be implemented in the wiring. This is summarized in the following table:
A list of the fixed and switch-selectable crossover (uplink) ports for each TigerStack model can be found in the following table:
Connecting Devices
Adapters, other hubs, and LAN switches are connected to 10BASE-T ports of a TigerStack hub with a twisted-pair cable segment. If the hub is located in a wiring closet, the connec­tion to an adapter is made via a patch cable, modular wall out­let, punch-down block, and patch panel.
22
CONNECTING
Crossover/Straight-Through Wiring Requirements
If one port is... And the other port is... Then use...
Crossover (X) Crossover (X) Crossover cable Crossover (X) Straight-through Straight-through cable Straight-through Straight-through Crossover cable
RJ-45 Fixed Crossover and Uplink Ports
Port Numbers
Model Fixed Crossover Uplink
3312TA 1-5, 8-12 6, 13 3326TA 1-5, 8-12, 15-20, 22-27 6, 13, 21, 28 3314T 1-6, 8-13 7, 14 3328T 1-6, 8-13, 15-20, 22-27 7, 14, 21, 28 3328TELCO N/A 7, 14, 21, 28 3306BC N/A 8
Page 34
Caution: Regulations regarding the connection of equipment to
telephone networks vary from country to country. Check with your local telephone network supplier before using existing telephone wiring.
Note: Refer to the table on the preceding page to determine
whether you need straight-through or crossover cable.
To connect a device to a 10BASE-T port on a TigerStack hub:
1. Attach one end of a twisted-pair cable segment to the device’s RJ-45 connector.
10BASE-T Connections
2. If the device is another hub or a LAN switch, attach the other end of the cable segment to an open 10BASE-T port on the hub.
3. If the device is an adapter and the TigerStack hub is in a wiring closet, attach the other end of the cable segment to a 10BASE-T modular wall outlet that is connected to the wiring closet (see “Wiring Closet Connections“ on the next page). Otherwise, attach the other end to an open 10BASE-T port on the hub.
23
CONNECTING
Page 35
Wiring Closet Connections
If the TigerStack hub has RJ-45 connectors:
1. Attach one end of a 50-pin Telco cable to the punch-down block in the wiring closet, and the other end to the patch panel on the rack.
2. Attach one end of the patch cable to the patch panel, and the other end to an open 10BASE-T port on the hub.
3. Label the cables to simplify future troubleshooting.
Wiring Closet Connections via RJ-45 Connectors
24
CONNECTING
Page 36
If the TigerStack hub has Telco connectors:
1. Attach one end of a 50-pin Telco cable to the punch-down block in the wiring closet
2. Attach the other end to the 50-pin connector on the TigerStack 3328Telco hub.
Wiring Closet Connections via Telco Connectors
25
CONNECTING
Page 37
Connecting to Thin Coax Cabling
Up to 30 devices (hubs, workstations, servers, etc.) may be connected to a thin coax cable segment with BNC T-Connectors.
Each cable segment must be terminated at both ends by a 50 ohm BNC terminator. One of the terminators must be grounded.
Note: TigerStack hub BNC ports support extended distance
capability up to 305 m (1,000 ft.) with cable meeting cer­tain specifications (see Appendix B, “Cables”). However , if other devices are attached to the same cable segment, then the maximum length of the cable segment is limited to the length supported by those products.
To connect a TigerStack BNC port to a thin coax cable segment:
1. Attach the male end of a BNC T-Connector to the BNC port.
2. Connect one end of a length of thin coax cable to one side of the BNC T-Connector.
3. Connect either another length of thin coax cable or a 50-ohm BNC terminator to the other side of the BNC T-Connector.
Thin Coax Connection via BNC Port
26
CONNECTING
Page 38
Connecting to Thick Coax Cabling
Up to 100 devices (hubs, workstations, servers, etc.) may be attached to a thick coax cable segment using AUI drop cables and tap-type transceivers.
Each cable segment must be terminated at both ends by a 50 ohm N-Series terminator. One terminator must be grounded.
To connect a TigerStack AUI port to a thick coax cable segment:
1. Attach a tap-type transceiver to the thick coax cable seg­ment. Refer to the documentation provided with the trans­ceiver for installation instructions.
2. Connect one end of the AUI drop cable to the tap-type transceiver, and the other end to the AUI port on the hub. Slide the hold-down clip on the female D-Connector to the open position, attach the male D-Connector, and then slide the clip back to the closed position.
Thick Coax Connection via AUI Port
27
CONNECTING
Page 39
Connecting to Fiber Cabling
A fiber cable segment is used for point-to-point connections. When using two simplex cables:
1. Connect one end of the first cable to the hub’s Tx connector and the other end to the Rx connector on the other device.
2. Connect one end of the second cable to the hub’s Rx con­nector and the other end to the Tx connector on the other device.
When using one duplex cable:
1. Differentiate the two fiber strands by banding one strand at both ends, as shown below.
2. Connect one end of the banded strand to the hub’s Tx con­nector and the other end to the Rx connector on the other device.
3. Connect one end of the remaining strand to the hub’s Rx connector and the other end to the Tx connector on the other device.
Duplex Fiber Connections via Dual ST Port
28
CONNECTING
Page 40
The Segmentation Concept . . . . . . . . . . . . . . . 30
Isolating Segments . . . . . . . . . . . . . . . . . . . 31
Interconnecting Isolated Segments . . . . . . . . 33
Segmenting the Hub . . . . . . . . . . . . . . . . . . . . 34
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 36
CHAPTER 4
SEGMENTING
29
Page 41
The Segmentation Concept
Each TigerStack hub is composed of two or four repeater groups, with each group containing four or seven ports, de­pending upon the model. Thus, a stack eight high can have as many as 32 repeater groups. Initially, these groups are united into a single 10 Mbps segment via the inter-repeater bus which runs through the stacking cable.
SEGMENTING
30
3306FC Segments A and B
3306BC Segments A and B
3328TELCO Segments A, B, C, and D
3328T Segments A, B, C, and D
(the 3314T has Two Segments: A and B)
3326TA Segments A, B, C, and D
(the 3312TA has Two Segments: A and B)
Page 42
Isolating Segments
Suppose you have a number of small, high-traffic workgroups that do not need to share data but do need additional band­width. Each workgroup can be attached to a different repeater group. Then the repeater groups can be isolated from the bus to form independent 10 Mbps networks (also known as colli­sion domains or segments).
Microsegmentation is accomplished via front panel buttons or switches, depending on the model. A LED for each segment indicates the status of that segment.
Note: With the NMM installed, repeater groups can also be iso-
lated through EliteView, SMC’s SNMP-based manage­ment software.
A stack can have as many as 32 separate 10 Mbps segments. These segments can be isolated from, and rejoined to, the bus quickly and easily via their front panel buttons or switches, or under SNMP software control.
31
SEGMENTING
TigerStack
Segments 1-32
Segmenting the Stack
Page 43
32
3326TA Segment Switches A, B, C, and D (the 3312TA has Two Switches: A and B)
3328TELCO Segment Buttons A, B, C, and D
3306BC Segment Buttons A and B
SEGMENTING
3328T Segment Buttons A, B, C, and D (the 3314T has Two Buttons: A and B)
Page 44
Interconnecting Isolated Segments
Suppose you have a number of small, high-traffic workgroups that do need to share data and also need additional bandwidth. Once isolated from the bus, these workgroups can be intercon­nected through a switch.
Linking 10BASE-T Segments Through a Switch
33
SEGMENTING
3306FC Segment Buttons A and B
Switch
Servers
Workstations
TigerStack
Multiple 10 Mbps Uplinks
Page 45
Segmenting the Hub
The hub can be segmented either via hardware with the front panel switches (TA models) or buttons (all other models), or via software with EliteView or any other SNMP-based manager.
Note: Unless the hardware lockout feature has been enabled
via software, the latest action (either hardware or soft­ware) overrides the previous setting.
Each segment button has two positions: Enable ON and Enable OFF. Each segment switch has three positions: Hub, Stack and Isolate. The figure on the following page illustrates how these buttons and switches can be used to segment the hubs. These functions are defined in the table on the next page.
Model 3328T (bottom) contains four segment buttons. The buttons for segments A and C are in the Enable OFF position, so these segments are not isolated; they are connected to the inter-repeater bus. The buttons for segments B and D are in the Enable ON position, so these segments are removed or isolated from the inter-repeater bus and from each other.
Model 3312TA (middle) contains two segment switches. The switches for both segments are in the Hub position so these segments are joined together to form a single 14-port segment.
Model 3326TA (top) contains four segment switches. The switch for segment D is in the Stack position, so segment D is connected to the stack through the inter-repeater bus. The switch for segment C is in the Isolate position, so segment C is removed from the inter-repeater bus. The switches for segments A and B are in the Hub position, so these segments are joined to form a 14-port segment.
SEGMENTING
34
Page 46
35
SEGMENTING
Segmenting the Hubs
Segment Button/Switch Functions
Button Switch Function
Off Stack Connects segment to the stack On Isolate Isolates segment from the stack
-- Hub Joins hub segments to form larger collision domain
Page 47
Procedure
Models 3314T, 3328T, 3328TELCO, 3306BC, 3306FC
1. To isolate a segment, move the button labeled Segmentation Enable to the On position (out).
2. Either press the Reset button (using a small, pointed instru­ment) or power the hub off, then on again.
Models 3312TA and 3326TA
1. Move the 3-position switch to one of the following posi­tions:
Stack – Select Stack to connect the segment to the stack via the inter-repeater bus. The Select LED will be off.
Hub – Select Hub to isolate the segment from the hub and to combine it with the other segments in the hub that have been set similarly, forming a larger segment. The Select LED will be green.
Isolate – Select Isolate to completely isolate the segment. The Select LED will be yellow.
2. Either press the Reset button (using a small, pointed instru­ment) or power the hub off, then on again.
SEGMENTING
36
Page 48
Status/Diagnostic LEDs . . . . . . . . . . . . . . . . . . 38
Testing the Installation . . . . . . . . . . . . . . . . . . 41
CHAPTER 5
TROUBLESHOOTING
37
Page 49
Status/Diagnostic LEDs
The following front-panel LEDs aid in testing the hub and diag­nosing network problems:
One green Power LED
One bi-color NMM Status LED
One yellow Collision LED for each segment
One yellow Segment LED for each segment (Bi-color for Models 3312TA and 3326TA)
One bi-color Port Status LED for each port
38
TROUBLESHOOTING
3312TA Front Panel LEDs
3326TA Front Panel LEDs
Page 50
39
TROUBLESHOOTING
3328TELCO Front Panel LEDs
3306BC Front Panel LEDs
3306FC Front Panel LEDs
3328T Front Panel LEDs
Page 51
The function of these LEDs is summarized in the table below:
Note: With some network adapters, the Port Status LED will light only after the board has been initialized with the appropriate driver soft­ware (e.g., after IPX has been loaded in a NetWare environment).
TROUBLESHOOTING
40
Front Panel LEDs
LED Condition Status
Power Off No AC power
Green AC power on
NMM Off NMM not installed
Blinking Green Power-on diagnostics being
performed on NMM
Green NMM has passed power-on
diagnostics
Blinking Yellow NMM failed power-on diagnostics
Collision Off No collisions detected
(one per segment) Blinking Yellow A collision has been detected on
the network (i.e., the hub is receiving data from two or more nodes at the same time)
Segment Off Repeater group is connected to the
(one per segment) stack
Yellow Repeater group is segmented
(i.e., isolated from rest of stack)
Green Repeater group is combined with
other groups within the hub (Models 3312TA and 3326TA)
Port Status Off Port not connected or wiring is
(one per port) faulty
Green:
RJ-45 / ST Link between hub and attached
device is good
BNC / AUI Loopback function is working
Blinking Green Packet data is originating from
(Source) this port
Yellow Port is partitioned
(Partition)
Page 52
Testing the Installation
1. Power up or reset the hub and check the LEDs (refer to “Connecting Power” in Chapter 2).
2. If the Power LED is not lit and there is no activity on the entire unit:
Check the connections between the hub, the power
cord, and the wall outlet.
Check the connections to the punch-down block and
patch panel (if the hub is installed in a rack).
If the Power LED still does not light, contact SMC Tech Support.
3. If the NMM LED blinks yellow, the power-on diagnostics have failed. Contact SMC Tech Support.
4. If the Port Status LEDs are not responding:
Check the connections between each network device
and the hub port, including wiring.
Check that the devices are powered on and functioning
properly.
5. If the BNC Port Status LED is yellow, be sure the cable attached to this port is properly terminated.
Note: If the BNC port is not used, it does not need to be terminated.
41
TROUBLESHOOTING
Page 53
42
Page 54
TigerStack 3312TA . . . . . . . . . . . . . . . . . . . . . . 44
TigerStack 3326TA . . . . . . . . . . . . . . . . . . . . . . 44
TigerStack 3314T . . . . . . . . . . . . . . . . . . . . . . . 45
TigerStack 3328T . . . . . . . . . . . . . . . . . . . . . . . 45
TigerStack 3328TELCO . . . . . . . . . . . . . . . . . . 46
TigerStack 3306BC . . . . . . . . . . . . . . . . . . . . . 46
TigerStack 3306FC . . . . . . . . . . . . . . . . . . . . . . 47
All TigerStack Hubs . . . . . . . . . . . . . . . . . . . . . 47
Stacking Cable . . . . . . . . . . . . . . . . . . . . . . . . 48
APPENDIX A
SPECIFICATIONS
43
Page 55
TigerStack 3312TA
Order Numbers
SMC3312TA (with US power cord) SMC3312TA EUR (with Continental power cord) SMC3312TA UK (with UK power cord)
Ports
12 10BASE-T 2 expansion slots for optional AUI, 10BASE2, 10BASE-T and 10BASE-F modules
Segments/Unit
Weight
7.2 lbs. (3.27 kg)
AC Input Power
Maximum: 18.5 watts (23.0 watts with NMM) Typical: 14.8 watts (19.0 watts with NMM)
DC Input Connector
14-pin, for optional RPU
DC Input Power (from optional RPU)
Maximum: +5 V @ 1.8 A, +12 V @ 700 mA (without NMM)
+5 V @ 2.7 A, +12 V @ 800 mA (with NMM)
TigerStack 3326TA
Order Numbers
SMC3326TA (with US power cord) SMC3326TA EUR (with Continental power cord) SMC3326TA UK (with UK power cord)
Ports
26 10BASE-T 2 expansion slots for optional AUI, 10BASE2, 10BASE-T and 10BASE-F modules
Segments/Unit
44
SPECIFICATIONS
Page 56
Weight
7.6 lbs. (3.45 kg)
AC Input Power
Maximum: 26.7 watts (32.0 watts with NMM) Typical: 21.0 watts (25.5 watts with NMM
DC Input Connector
14-pin, for optional RPU
DC Input Power (from optional RPU)
Maximum: +5 V @ 3 A, +12 V @ 700 mA (without NMM)
+5 V @ 3.9 A, +12 V @ 800 mA (with NMM)
TigerStack 3314T
Order Numbers
SMC3314T (with US power cord) SMC3314T EUR (with Continental power cord) SMC3314T UK (with UK power cord)
Ports
14 10BASE-T
Segments/Unit
Weight
4.15 lbs. (1.88 kg)
AC Input Power
Maximum: 11.0 watts (15.7 watts with NMM) Typical: 9.8 watts (14.0 watts with NMM)
TigerStack 3328T
Order Numbers
SMC3328T (with US power cord) SMC3328T EUR (with Continental power cord) SMC3328T UK (with UK power cord)
Ports
28 10BASE-T
Segments/Unit
45
SPECIFICATIONS
Page 57
Weight
4.7 lbs. (2.13 kg)
AC Input Power
Maximum: 22.7 watts (26.0 watts with NMM) Typical: 17.0 watts (21.5 watts with NMM)
TigerStack 3328TELCO
Order Numbers
SMC3328TELCO (with US power cord) SMC3328TELCO EUR (with Continental power cord) SMC3328TELCO UK (with UK power cord)
Ports
28 10BASE-T
Segments/Unit
Weight
4.7 lbs. (2.13 kg)
AC Input Power
Maximum: 22.7 watts (26.0 watts with NMM) Typical: 17.0 watts (21.5 watts with NMM)
TigerStack 3306BC
Order Numbers
SMC3306BC (with US power cord) SMC3306BC EUR (with Continental power cord) SMC3306BC UK (with UK power cord)
Ports
6 BNC 1 10BASE-T 1 AUI
Segments/Unit
Weight
4.35 lbs. (1.97 kg)
SPECIFICATIONS
46
Page 58
AC Input Power
Maximum: 36.5 watts (40.0 watts with NMM) Typical: 28 watts (34.0 watts with NMM
TigerStack 3306FC
Order Numbers
SMC3306FC (with US power cord) SMC3306FC EUR (with Continental power cord) SMC3306FC UK (with UK power cord)
Ports
6 ST 1 BNC 1 AUI
Segments/Unit
Weight
4.15 lbs. (1.88 kg)
AC Input Power
Maximum: 27.3 watts (33.88 watts with NMM) Typical: 21.84 watts (27.1 watts with NMM)
All TigerStack Hubs
Network Interface
10BASE-T
RJ-45, 100 Ohm UTP cable (EIA/TIA categories 3, 4, 5)
10BASE2
BNC, 50 Ohm coax (RG-58A/U or RG-58C/U)
10BASE-F
Dual ST, 62.5/125 micron core duplex fiber
AUI
D-Type 15-pin female, multi 78 Ohm STP with overall shield
Size
1.75 in. H x 16.875 in. W x 9.00 in. D
(4.4 cm x 43.2 cm x 22.9 cm)
Temperature
Operating: 0˚ to 45˚ C (32˚ to 113˚ F) Storage: 0˚ to 85˚ C (32˚ to 185˚ F)
47
SPECIFICATIONS
Page 59
Relative Humidity, non-condensing
Operating: 0% to 90% Storage: 0% to 95%
Power Supply
Internal, auto-ranging transformer 100 to 240 VAC, 50 to 60 Hz
Compliances
Safety
UL 1950 EN60950 (TÜV) CSA 22.2 No. 950
Emissions
FCC Class A Canada Department of Communications, Class A EN55022 (CISPR 22) Class A VCCI Class 1
Immunity
EN50082-1
Standards
IEEE 802.3 ISO/IEC 8802-3
Warranty
Unit
Limited Lifetime
Power Supply and Fan
5 years
Stacking Cable
Order Number
SMC3300-CABLE
Connector
50-pin conductor
Cable
SCSI
SPECIFICATIONS
48
Page 60
Types/Connectors . . . . . . . . . . . . . . . . . . . . . . 50
Cable Specifications . . . . . . . . . . . . . . . . . . . . . 51
Extended Distance . . . . . . . . . . . . . . . . . . . . . 53
10BASE-T Pin Assignments . . . . . . . . . . . . . . . 54
RJ-45 Connectors . . . . . . . . . . . . . . . . . . . . . 54
Telco Connectors . . . . . . . . . . . . . . . . . . . . 55
Automatic Polarity Detection and Correction . 57
Straight-Through Wiring . . . . . . . . . . . . . . . 57
Crossover Wiring . . . . . . . . . . . . . . . . . . . . 60
AUI Pin Assignments . . . . . . . . . . . . . . . . . . . . 63
APPENDIX B
CABLES
49
Page 61
Types/Connectors
CABLES
50
Cable Type Connectors
10BASE-T 100 ohm UTP, male 8-pin RJ-45
(Twisted-Pair) 22 - 26 AWG, or 50-pin Telco
0.4 - 0.6 mm, 2 pairs
AUI External male 15-pin, D-type, AUI
Transceiver Drop
Thick Coax 50 ohm Coax N-Series
Thin Coax RG-58A/U or Bayonet style BNC
RG-58C/U
50 ohm Coax
Dual Fiber 50/125, 62.5/125, Bayonet style Dual ST
80/125 or 100/140
Micron Core
Cable Types and Connectors
Page 62
Cable Specifications
51
CABLES
Type 100 ohm UTP
(e.g., IBM Type 3 or AT&T DIW)
Number of Pairs 2 Max. Link Segment Length 328 ft. (100 m)
Min. Link Segment Length 2.0 ft. (0.6 m) Max. Number of Attachments 2
per Link Segment
Type 78 ohm STP Max. Drop Cable Length 165 ft. (50 m) Min. Drop Cable Length 0.0 ft. (0.0 m) Max. Number of Attachments 2
per Drop Cable
Type 50 ohm Coax Max. Segment Length 1,640 ft. (500 m)
Min. Distance Between 8.2 ft. (2.5 m) Transceivers
Max. Number of Attachments 100 per Cable Segment
Twisted-Pair Link Segment Specifications
Thick Coax Cable Specifications
AUI Cable Specifications
Page 63
* See “Extended Distance.”
52
Type 50/125, 62.5/125, 80/125
100/140 micron core Number of Pairs 2 Max. Link Segment Length 0.62 mi. (1.0 km) Min. Link Segment Length no minimum Max. Number of Attachments 2
per Link Segment
CABLES
Type RG-58A/U or RG-58C/U Coax Max. Segment Length 1,000 ft.* (305 m) Min. Distance Between 1.5 ft. (0.5 m)
Devices Max. Number of Attachments 30
per Cable Segment
Thin Coax Cable Specifications
Duplex Fiber Cable Specifications
Page 64
Extended Distance
The IEEE 802.3 10BASE2 specification defines the maximum length of a thin coax segment as 607 feet (185 m). However, TigerStack BNC ports support thin coax segments of up to 1,000 feet (305 m) in length with 50 ohm RG-58 cabling meet­ing the following specifications:
Note: If other Ethernet products are attached to the same
cable segment, then the maximum length of that cable segment is limited by the length these products support.
53
CABLES
Number of Nodes Nominal Attenuation at 10 MHz
per 1,000 feet (305 m) per 100 feet (30 m)
Maximum 10 13 dB or less 1.3 dB or less Maximum 30 12 dB or less 1.2 dB or less
Extended Distance Specifications
Page 65
10BASE-T Pin Assignments
Caution: Regulations regarding the connection of equipment to
telephone networks vary from country to country. Check with your local telephone network supplier before using existing telephone wiring.
An Ethernet twisted-pair link segment requires two pairs of wires. Each wire pair is identified by two different colors. For example, one wire might be red and the other, red with white stripes.
Caution: Each wire pair must be attached to the RJ-45 connec-
tors in a specific orientation (see “Crossover Function” in Chapter 3 for an explanation).
RJ-45 Connectors
Each twisted-pair link seg­ment must have an RJ-45 male connector attached to both ends. According to the 10BASE-T specification, pins 1 and 2 are used for transmitting data, and pins 3 and 6 for receiving data.
* The “+” and “-” signs are used to represent the polarity of the two
wires that make up each wire pair.
Note how the pins are num­bered. Be sure to hold the con­nectors in the same orientation when attaching the wires to the pins.
54
CABLES
Pin Number Assignment*
1 Tx+ 2 Tx­3 Rx+ 6 Rx-
RJ-45 Pin Assignments
RJ-45 Connector Pin Numbers
Page 66
Telco Connectors
Twisted-pair wiring is available in bundles of twenty-five wire pairs. A bundle requires 50-pin Telco male connectors at each end.
Note how the pins are numbered on the 50-pin female connec­tor shown below. Be sure to hold the 50-pin male connector in the same orientation when attaching it to the hub.
The TigerStack 3328TELCO is equipped with two Telco connec­tors: the first for ports 1 to 6 and 8 to 13, and the second for ports 15 to 20 and 22 to 27. The table on the following page provides the pin assignments for both connectors.
55
CABLES
25-Pair Telco Connector Pin Numbers
Page 67
* The “+” and “-” signs are used to represent the polarity of the two
wires that make up each wire pair.
CABLES
56
50-Pin Telco Pin Assignments
Pin
Number
Ports
Assign-
ment*
Pin
Numbers
Ports
Assign-
ment*
1 1, 15 Rx- 26 1, 15 Rx+ 2 1, 15 Tx- 27 1, 15 Tx+ 3 2, 16 Rx- 28 2, 16 Rx+ 4 2, 16 Tx- 29 2, 16 Tx+ 5 3, 17 Rx- 30 3, 17 Rx+ 6 3, 17 Tx- 31 3, 17 Tx+ 7 4, 18 Rx- 32 4, 18 Rx+ 8 4, 18 Tx- 33 4, 18 Tx+
9 5, 19 Rx- 34 5, 19 Rx+ 10 5, 19 Tx- 35 5, 19 Tx+ 11 6, 20 Rx- 36 6, 20 Rx+ 12 6, 20 Tx- 37 6, 20 Tx+ 13 8, 22 Rx- 38 8, 22 Rx+ 14 8, 22 Tx- 39 8, 22 Tx+ 15 9, 23 Rx- 40 9, 23 Rx+ 16 9, 23 Tx- 41 9, 23 Tx+ 17 10, 24 Rx- 42 10, 24 Rx+ 18 10, 24 Tx- 43 10, 24 Tx+ 19 11, 25 Rx- 44 11, 25 Rx+ 20 11, 25 Tx- 45 11, 25 Tx+ 21 12, 26 Rx- 46 12, 26 Rx+ 22 12, 26 Tx- 47 12, 26 Tx+ 23 13, 27 Rx- 48 13, 27 Rx+ 24 13, 27 Tx- 49 13, 27 Tx+ 25 nc nc 50 nc nc
Page 68
Automatic Polarity Detection and Correction
If a receive data pair has the “+” and “-” signals inadvertently switched, the hubs correct the signal inversion automatically, allowing the data path to operate correctly.
Straight-Through Wiring
If the twisted-pair link segment is to join two ports and only one of the ports has an internal crossover, the two pairs of wires must be straight-through.
Pin assignments for Telco connectors are given on the next page.
57
CABLES
End 1 End 2
1 (Tx+) 1 (Tx+) 2 (Tx-) 2 (Tx-) 3 (Rx+) 3 (Rx+) 6 (Rx-) 6 (Rx-)
Straight-Through RJ-45 Pin Assignments
Page 69
CABLES
58
Straight-Through 50-Pin Telco Pin Assignments
Hub Port Device Equiv. RJ-45 Pin
1 (Rx-) 1 (Rx-) 2 2 (Tx-) 1 (Tx-) 6 3 (Rx-) 2 (Rx-) 2 4 (Tx-) 2 (Tx-) 6 5 (Rx-) 3 (Rx-) 2 6 (Tx-) 3 (Tx-) 6 7 (Rx-) 4 (Rx-) 2 8 (Tx-) 4 (Tx-) 6
9 (Rx-) 5 (Rx-) 2 10 (Tx-) 5 (Tx-) 6 11 (Rx-) 6 (Rx-) 2 12 (Tx-) 6 (Tx-) 6 13 (Rx-) 8 (Rx-) 2 14 (Tx-) 8 (Tx-) 6 15 (Rx-) 9 (Rx-) 2 16 (Tx-) 9 (Tx-) 6 17 (Rx-) 10 (Rx-) 2 18 (Tx-) 10 (Tx-) 6 19 (Rx-) 11 (Rx-) 2 20 (Tx-) 11 (Tx-) 6 21 (Rx-) 12 (Rx-) 2 22 (Tx-) 12 (Tx-) 6 23 (Rx-) 13 (Rx-) 2 24 (Tx-) 13 (Tx-) 6 25 (nc) nc (nc) nc
Page 70
59
CABLES
Straight-Through 50-Pin Telco Pin Assignments - Continued
Hub Port Device Equiv. RJ-45 Pin
26 (Rx+) 1 (Rx+) 1 27 (Tx+) 1 (Tx+) 3 28 (Rx+) 2 (Rx+) 1 29 (Tx+) 2 (Tx+) 3 30 (Rx+) 3 (Rx+) 1 31 (Tx+) 3 (Tx+) 3 32 (Rx+) 4 (Rx+) 1 33 (Tx+) 4 (Tx+) 3 34 (Rx+) 5 (Rx+) 1 35 (Tx+) 5 (Tx+) 3 36 (Rx+) 6 (Rx+) 1 37 (Tx+) 6 (Tx+) 3 38 (Rx+) 8 (Rx+) 1 39 (Tx+) 8 (Tx+) 3 40 (Rx+) 9 (Rx+) 1 41 (Tx+) 9 (Tx+) 3 42 (Rx+) 10 (Rx+) 1 43 (Tx+) 10 (Tx+) 3 44 (Rx+) 11 (Rx+) 1 45 (Tx+) 11 (Tx+) 3 46 (Rx+) 12 (Rx+) 1 47 (Tx+) 12 (Tx+) 3 48 (Rx+) 13 (Rx+) 1 49 (Tx+) 13 (Tx+) 3 50 (nc) nc (nc) nc
Page 71
Crossover Wiring
If the twisted-pair link segment is to join two ports and either both ports are labeled with an “X” or neither port is labeled with an “X,” a crossover must be implemented in the wiring.
Pin assignments for Telco connectors are given on the next page.
CABLES
60
End 1 End 2
1 (Tx+) 3 (Rx+)
2 (Tx-) 6 (Rx-)
3 (Rx+) 1 (Tx+)
6 (Rx-) 2 (Tx-)
Crossover RJ-45 Pin Assignments
Page 72
61
CABLES
Crossover 50-Pin Telco Pin Assignments
Hub Port Device Equiv. RJ-45 Pin
1 (Rx-) 1 (Tx-) 6 2 (Tx-) 1 (Rx-) 2 3 (Rx-) 2 (Tx-) 6 4 (Tx-) 2 (Rx-) 2 5 (Rx-) 3 (Tx-) 6 6 (Tx-) 3 (Rx-) 2 7 (Rx-) 4 (Tx-) 6 8 (Tx-) 4 (Rx-) 2
9 (Rx-) 5 (Tx-) 6 10 (Tx-) 5 (Rx-) 2 11 (Rx-) 6 (Tx-) 6 12 (Tx-) 6 (Rx-) 2 13 (Rx-) 8 (Tx-) 6 14 (Tx-) 8 (Rx-) 2 15 (Rx-) 9 (Tx-) 6 16 (Tx-) 9 (Rx-) 2 17 (Rx-) 10 (Tx-) 6 18 (Tx-) 10 (Rx-) 2 19 (Rx-) 11 (Tx-) 6 20 (Tx-) 11 (Rx-) 2 21 (Rx-) 12 (Tx-) 6 22 (Tx-) 12 (Rx-) 2 23 (Rx-) 13 (Tx-) 6 24 (Tx-) 13 (Rx-) 2 25 (nc) nc (nc) nc
Page 73
62
CABLES
Crossover 50-Pin Telco Pin Assignments - Continued
Hub Port Device Equiv. RJ-45 Pin
26 (Rx+) 1 (Tx+) 3 27 (Tx+) 1 (Rx+) 1 28 (Rx+) 2 (Tx+) 3 29 (Tx+) 2 (Rx+) 1 30 (Rx+) 3 (Tx+) 3 31 (Tx+) 3 (Rx+) 1 32 (Rx+) 4 (Tx+) 3 33 (Tx+) 4 (Rx+) 1 34 (Rx+) 5 (Tx+) 3 35 (Tx+) 5 (Rx+) 1 36 (Rx+) 6 (Tx+) 3 37 (Tx+) 6 (Rx+) 1 38 (Rx+) 8 (Tx+) 3 39 (Tx+) 8 (Rx+) 1 40 (Rx+) 9 (Tx+) 3 41 (Tx+) 9 (Rx+) 1 42 (Rx+) 10 (Tx+) 3 43 (Tx+) 10 (Rx+) 1 44 (Rx+) 11 (Tx+) 3 45 (Tx+) 11 (Rx+) 1 46 (Rx+) 12 (Tx+) 3 47 (Tx+) 12 (Rx+) 1 48 (Rx+) 13 (Tx+) 3 49 (Tx+) 13 (Rx+) 1 50 (nc) nc nc nc
Page 74
AUI Pin Assignments
Note: Voltage Plus (VP) and Voltage Common (Vc) use a
single twisted-pair in the AUI cable.
63
CABLES
Pin Circuit Signal Name
3 DO-A Data Out Circuit A 10 DO-B Data Out Circuit B 11 DO-S Data Out Circuit Shield
5 DI-A Data In Circuit A 12 DI-B Data In Circuit B
4 DI-S Data In Circuit Shield
8 CO-S Control Out Circuit Shield
2 CI-A Control In Circuit A
9 CI-B Control In Circuit B
1 CI-S Control In Circuit Shield
6 Vc Voltage Common 13 VP Voltage Plus 14 VS Voltage Shield
Shell PG Protective Ground
(Conductive Shell)
AUI Pin Assignments
Page 75
64
Page 76
65
A
AC line cord 15 Adhesive feet 8, 12 Attaching
adhesive feet 12 BNC transceiver 19 brackets 11 power cord 15 transceiver to AUI port 19
AUI
attaching transceiver to 19 drop cable 27 pin assignments 63 port 18, 19, 27, 50
Automatic
polarity detection and
correction 5, 57
port/segment partitioning
and reconnection 5
B
Bandwidth
boosting 2, 31 scaling 2, 33
BNC
connector 26, 50
transceiver, SQE switch 19 Boosting bandwidth 2, 31 Bracket Mounting Kit 8 Brackets, attaching 11 Buttons
crossover 21
segment 5, 31-36
C
Cable
connectors 50
crossover 21, 22, 60
specifications 51, 52
straight-through 21, 22, 57
types 50
INDEX
Cable segment
IRL (Inter-Repeater Link) 20 populated 20
unpopulated 20 Cascading hubs 18 Changing AC line cord 15 Checklist, equipment 8 Collision
domain, definition of 2
LEDs 5, 16, 38-40 Compliances v, 48 Connecting to
adapters 18
fiber cable 28
LAN switch 33
network 18
other hubs 18
power source 13, 15
telephone networks 23, 54
thick coax cable 27
thin coax cable 26
twisted-pair cable 21, 23
wiring closet 22-25 Connectivity
SMC 5 - 4 - 3 Rule 20 Connectors
AUI 18, 19, 27, 50
BNC 26, 50
RJ-45 23, 50
SCSI 13, 14
ST 28, 50
Telco 24, 25, 50, 55 Crossover
buttons 21
function 21
pin assignments
RJ-45 60
Telco 61, 62 wiring 60 wiring requirements 22
Page 77
66
D
Desktop mounting 12 Diagnostics, power-on 15 Distance, extended 5, 26, 53 Drop cable, AUI 27 Duplex cable, fiber 28
E
Equipment checklist 8 Extended distance 5, 26, 53
F
Fiber
cable connections 28 cable specifications 52
connector 28, 50 Fixed crossover ports 5, 21, 22 Front Panel LEDs 38, 39
H
Hubs
cascading 18
installing 8-12
locating 8, 10
managing 3
stacking 2, 13-15
I
Installing hubs 8-12 Interconnecting
repeater groups 2, 33
segments 2, 33 International line cords 15 IRL (Inter-Repeater Link) 20 Isolating segments
via hardware 31, 34-36
via software 31, 34
J
Jabber lockup protection 5
INDEX
L
LAN switch 33 LEDs
Collision 5, 16, 38-40 NMM 5, 15, 38-41 Port Status 5, 16, 38-41 Power 5, 15, 38-41 power-up sequence 15
Segment 5, 16, 38-40 Line cord 15 Link integrity checking 5 Locating hubs 8, 10 Logical repeater, definition of 2
M
Making network connections 18
directly 18
via transceiver 18 Making Telco connections 24, 25 Managing hubs 3 Microsegmentation 31 Mounting hubs
in a rack 10
on a desktop 12
on a shelf 12
N
Network Management Module 3
field-installable 3
placement in stack 3 NMM LED 5, 15, 38-41
O
Optional equipment 9 Overriding segmentation
settings 34
P
Package contents 8 Partitioning, automatic
port/segment 5
Page 78
Pin assignments
10BASE-T 54, 56-62
crossover 60-62 straight-through 57-59
AUI 63
Pin numbers
RJ-45 54 Telco 55
Point-to-point
connections 21, 28
Polarity
automatic detection and
correction of 5, 57
of wires 54 Populated cable segment 20 Port
AUI 18, 19, 27, 50
fixed crossover 5, 21, 22
RJ-45 23, 50
ST 28, 50
status LEDs 5, 16, 38-41
switch-selectable
crossover 5, 21, 22
uplink 5, 21, 22 Power
connecting to 13, 15
connector 15
cord, attaching 15
LED 5, 15, 38-41
supply 5 Power-on diagnostics 15, 41 Power-up LED sequence 15
R
Rack mounting
hubs 10
screws 9
site guidelines 10
tools, required 9 Reconnection, automatic
port/segment 5
Rejoining repeater groups 31 Removing screws 10 Repeater
hops 2 logical, definition of 2
Repeater groups
definition of 30 interconnecting 2, 33 isolating 2, 31 rejoining 31 segmenting 2, 31 uniting 30
RJ-45 connector 23, 50
pin assignments 54 pin numbers 54
Routing twisted-pair cable 8
S
Scaling bandwidth 2, 33 SCSI connectors 13, 14 Segment
buttons 5, 31-36 definition of 31 LEDs 5, 16, 38-40 settings, overriding 34 switches 5, 31, 32, 34-36
Segmentation hardware
lockout 34
Segmenting
hubs 2, 31, 34-36
via hardware 31, 34-36 via software 31, 34
repeater groups 2, 31
Segments
interconnecting 2, 33 isolating 31
rejoining 31 Setting unit ID switch 13 Shelf mounting 12 Simplex cable, fiber 28 Site guidelines 8, 10
67
INDEX
Page 79
Smart squelch digital noise
filter 5 SMC 5 - 4 - 3 Rule 20 Specifications
cable 51, 52 extended distance 53 hubs 44-48 network interface 47
stacking cable 48 SQE switch 19 ST connectors 28, 50 Stacking
cable 9, 13, 48
hubs 2, 13, 14, 15 Standards 48 Status/Diagnostic
LEDs 5, 15, 16, 38-40
Straight-through
pin assignments
RJ-45 57
Telco 58, 59 wiring 22, 57 wiring requirements 22
Subdividing a workgroup 2 Switch-selectable crossover
ports 5, 21, 22
Switches
segment 5, 31-36
T
Tap-type transceiver 27 Telco
connections 24, 25 connector 24, 25, 50 pin assignments 56 pin numbers 55
Telephone networks 23, 54 Terminating
thick coax cable 27 thin coax cable 26, 41
Terminator 26, 27
Testing the installation 15, 16, 41 Thick coax
cable specifications 51 connections 27 terminating 27
Thin coax
cable specifications 52 connections 26 terminating 26, 41
TigerStack
features 5 models 3, 4 segments, number of 3, 4
ports, type of 3, 4 Tools 9 Transceiver
attaching to AUI port 19
BNC, SQE switch 19
definition of 18
tap-type 27 Troubleshooting 37, 40, 41 Twisted-pair
cable, routing 8
cable specifications 51
connections 21, 23
U
Unit ID switch 13 Uniting repeater groups 30 Unpopulated cable segment 20 Uplink ports 5, 22 Using
crossover cable 22
existing telephone
wiring 23, 54
straight-through cable 22
W
Wiring closet
connections 23, 24
Wiring polarity 5
INDEX
68
Page 80
Publication Number: 900.166 Rev. A
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