Compaq Netelligent 1016 User guide

Netelligent 1016
10Base-T Repeater
User Guide
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NOTICE
The information in this publication is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR
EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR
CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR
USE OF THIS MATERIAL.
This publication contains information protected by copyright. No part of this publication may be
photocopied or reproduced in any form without prior written consent from Compaq Computer
Corporation.
The software described in this guide is furnished under a license agreement or non disclosure agreement.
The software may be used or copied only in accordance with the terms of the agreement.
Product names mentioned herein may be trademarks and/or registered trademarks of their respective
companies.
 1996 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
Compaq
Registered United States Patent and Trademark Office.
Netelligent is a trademark of Compaq Computer Corporation.
Microsoft and Windows are a registered trademarks of Microsoft Corporation.
Compaq Netelligent 1016 10Base-T Unmanaged Repeater
User Guide
First Edition (July 1996)
Part Number 268749-001
Writer: Liz Fischer Project: Comments: 268749-001
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v
Federal Communications Commission Notice
Part 15 of the Federal Communications Commission (FCC) Rules and Regulations has established Radio
Frequency (RF) emission limits to provide an interference-free radio frequency spectrum. Many
electronic devices, including computers, generate RF energy incidental to their intended function and are,
therefore, covered by these rules. These rules place computers and related peripheral devices into two
classes, A and B, depending upon their intended installation. Class A devices are those that may
reasonably be expected to be installed in a business or commercial environment. Class B devices are
those that may reasonably be expected to be installed in a residential environment (i.e., personal
computers). The FCC requires devices in both classes to bear a label indicating the interference potential
of the device as well as additional operating instructions for the user.
The rating label on the device shows which class (A or B) the equipment falls into. Class B devices have
an FCC ID on the label. Class A devices do not have an FCC ID on the label. Once the class of the device
is determined, refer to the following corresponding statement.
NOTE: If this equipment contains a Token Ring interface, this equipment is a
Class A digital device when the Token Ring interface is utilized.
Class A Equipment
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference, in which case the user will be required to correct
the interference at personal expense.
Canadian Notice
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment
Regulations.
Avis Canadien
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel
brouilleur du Canada.
Compaq Netelligent 1016 10Base-T Unmanaged Repeater User Guide
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vi
Federal Communications Commission Notice
Modifications
The FCC requires the user to be notified that any changes or modifications made to this device that are
not expressly approved by Compaq Computer Corporation may void the user's authority to operate the
equipment.
Cables
Connections to this device must be made with shielded cables with metallic RFI/EMI connector hoods in
order to maintain compliance with FCC Rules and Regulations.
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vii
Euopean Union (EU) Notice
Products with the CE Marking comply with both the EMC Directive (89/336/EEC) and the Low Voltage
Directive (73/23/EEC) issued by the Commission of the European Community.
Compliance with these directives implies conformity to the following European Norms (in brackets are
the equivalent international standards):
■
EN55022 (CISPR 22) - Electromagnetic Interference
■
EN50082-1 (IEC801-2, IEC801-3, IEC801-4) - Electromagnetic
Immunity
■
UL 1950, Second Edition; CAN/CSA C22.2 No. 950-93; TUV
Rheinland EN 60950; and 1988 + A1/1990+A2/1991 - Product Safety
Japanese Notice
Compaq Netelligent 1016 10Base-T Unmanaged Repeater User Guide
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viii
Federal Communications Commission Notice
Fiber Port Class 1 Classification
Compaq fiber ports have been tested in accordance with the IEC 825-1 test standard and found to meet
the Class 1, intrinsically eye-safe emitter classification.
Product Label
.
CLASS 1 LED
KLASSE 1 LED
The fiber ports on this product have been tested in accordance with the
IEC 825-1 Test Standard and found to meet the Class 1, intrinsically
eye-safe emitter classification.
Lithium Battery
The non-volatile RAM (NVRAM) chip on the motherboard of the Netelligent 5000 10/100 switch
products contains a non-replaceable lithium battery. Only trained service personnel should dispose of this
chip.
La puce mémoire non volatile contient une pile au lithium non remplaçable. L'élimination de cette puce
devrait être confieé à un personnel qualifié.
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1-1
Chapter 1
Overview
The Compaq Netelligent 1016 10Base-T unmanaged repeater is the ideal
connectivity solution for departmental Ethernet workgroups. It is easy to
configure, maintain, and expand and is capable of port management via its
built-in LED indicators.
Features
The Netelligent 1016 10Base-T repeater (Part Number 267025-001) has the
following features:
■
Sixteen RJ-45 ports for connecting UTP or STP cabling to workstations
and servers in a 10Base-T network
■
One Media Expansion Port (MEP) that supports optional Alternate
Media Connectors, including the following types:
❏
AUI (DB-15) (Part Number 267063-001)
❏
BNC (Thinnet) (Part Number 267064-001)
❏
Fiber (10Base-FL) (Part Number 267065-001)
■
Front-panel uplink switch that converts Port 16 to an uplinkable port so
the repeater can connect to another repeater in a star topology
■
LEDs that indicate power, activity, and collision status as well as
activity on the RJ-45 ports
■
Link integrity feature that automatically partitions noisy segments and
detects broken cable segments
■
Compatibility with the IEEE 802.3 10Base-T repeater specifications for
connection to shielded or unshielded twisted-pair wiring
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1-2
Overview
Figure 1-1 shows the repeater's front and back panels and the locations of the
various repeater components:
Power/Activity/Collision
Media Expansion Port LEDs
Media Expansion Port
PWR
1
2
3
RJ-45 Ports and LEDs
4
5
6
7
8
9
10
11
12
14
13
15
16
UPLINK
ACT
MDI
COL
MDI-X
MEP
Power Cord Connector
UPLINK Switch
(for converting
Port 16 to an
uplinkable port)
Back Panel
Figure 1-1. Front and Back Panels of the Repeater
Figure 1-2 shows optional Altermate Media Connectors that you can install in
the repeater's Media Expansion Port:
Alternate Media Connectors
(Optional)
BNC Connector
(Thinnet)
AUI Connector
Fiber Connector
(10Base-FL)
RX
Figure 1-2. Alternate Media Connectors
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TX
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1-3
LED Indicators
The repeater contains PWR, ACT, COL, and MEP LEDs that show the
repeater's power status (ON or OFF), the incoming traffic on the repeater
(heavy, light, or no activity), and the collision status (light or heavy activity).
Each RJ-45 port has a Link Status LED that operates in the following manner:
■
When you power up the repeater, the Link Status LEDs are ON
momentarily, then turn OFF.
■
When the repeater connects with either a powered network station or
another repeater, the LED associated with that port is ON and remains
ON until the connection breaks.
■
If the repeater makes no connection, the LED is OFF.
Figure 1-3 shows the locations of the LEDs and the RJ-45 ports on the front
panel of the repeater.
Power, Activity, Collision,
Media Expansion Port Activity LEDs
Link Status LEDs
PWR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
ACT
COL
MEP
RJ-45 Ports
Figure 1-4. Location of the LEDs
Compaq Netelligent 1016 10Base-T Unmanaged Repeater User Guide
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1-4
Overview
Table 1-1 describes the repeater LEDs:
Table 1-1
LED Indicators
LED
Flashing
Yellow
Green
Flashing
Green
LED
OFF
PWR
Not used
Power ON; normal
operations
Not used
Power OFF
ACT
Not used
Heavy activity (incoming
traffic) on the port
Light activity
(incoming traffic) on
the port
No activity (no
incoming traffic on
port)
COL
*
Not used
Not used
No collisions
* Slow flashing = Light collisions; Fast flashing = Heavy collisions
Link Status
(RJ-45
Port)
Not used
Link OK for the RJ-45
port
Not used
NOTE: Flashing Yellow LEDs may appear orange on the repeater’s front panel.
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Link failed or no
connection for the
RJ-45 port
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1-5
Package Contents
Before you start, verify that this package contains the following items:
■
Netelligent 1016 10Base-T repeater (Part Number 267025-001)
■
Compaq Netelligent 1016 10Base-T Unmanaged Repeater User Guide
■
Power cord
■
Two rack mounting brackets
■
Four screws for rack mounting (#10-32X1/2) and two screws for the
media expansion port (#4-40X1/4)
■
(Optional) Alternate Media Connectors
■
❏
AUI DB-15 (Part Number 267063-001)
❏
BNC for Thinnet (Part Number 267064-001)
❏
Fiber 10Base-FL (Part Number 267065-001)
Warranty card
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2-1
Chapter 2
Media Expansion Options
The repeater contains a Media Expansion Port (MEP) that gives you the option
of installing one of several Alternate Media Connectors (AMCs) to expand the
network to other media. Each connector is sold separately. This chapter
describes these connectors and how to install each.
Alternate Media Connectors
You can use the following AMCs with the repeater:
■
AUI wiring for DB-15 Thicknet backbone (Part Number 267063-001)
■
BNC for Thinnet backbone (Part Number 267064-001)
■
Fiber 10Base-FL backbone (Part Number 267065-001)
These are shown in Figure 2-1:
BNC Connector
(Thinnet)
AUI Connector
Fiber Connector
(10Base-FL)
RX
TX
Figure 2-1. Alternate Media Connectors
Installing a BNC Alternate Media Connector
To connect the repeater to a Thinnet backbone, use a BNC connector. If you
install a BNC connector but do not physically connect a cable to it, be sure to
disable the port by setting the jumper on the connector board. Figure 2-2 shows
the jumper settings on the board.
You can also use an external terminator on this port. If you use a terminator, set
the jumper to ON so that you can make connections to this port later.
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2-2
Media Expansion Options
IMPORTANT: If there is no connection or external terminator at the BNC port, set
the jumper to the OFF position. Otherwise, excessive collisions will occur and
adversely affect network performance.
The AW1 jumper settings are shown in Figure 2-2:
ON
AW1
BNC
Disabled
OFF
BNC
Enabled
(Default)
Figure 2-2. AW1 Jumper Settings
To install a BNC connector, follow these steps:
1.
Power down the repeater if it is currently operating For information
about disconnecting power, see the section “Disconnecting Power” in
Chapter 3 of this guide.
2.
Remove the cover from the repeater's Media Expansion Port.
3.
Check that the jumpers on the BNC board are set correctly (ON for
connection; OFF for no connection).
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2-3
4.
Insert the BNC connector through the MEP opening and carefully push
the 20-pin plug into the outlet on the repeater board until the AMC
is secure.
5.
Tighten the screws on the faceplate.
6.
Restart the repeater. For information about starting the repeater, see the
section “Connecting Power” in Chapter 3 of this guide. If you have
connected the repeater properly, the link status LED above each RJ-45
port turns ON momentarily, then turns OFF.
Installing an AUI or Fiber
Alternate Media Connector
To connect the repeater to a Thicknet backbone, use an AUI connector. To
connect the repeater to a 10Base-FL backbone, use a fiber connector. The AUI
and Fiber connectors require no jumper settings. To install either AUI or Fiber
connectors, follow these steps:
1.
Power down the repeater if it is currently operating.
2.
Remove the cover from the repeater's Media Expansion Port.
3.
Insert the AMC's connector through the MEP opening, and carefully
push the 20-pin male connector into the receptacle on the repeater board
until the connector is secure.
4.
Tighten the screws on the faceplate.
5.
Restart the repeater. If you have connected the repeater properly, the link
status LED above each RJ-45 port turns ON momentarily, then turns
OFF.
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3-1
Chapter 3
Setting Up the Repeater
This chapter describes the requirements for setting up the repeater, including
environmental, electrical, and spatial requirements, as well as UTP cabling
considerations. The chapter also explains how to rack mount and power up the
repeater, how to make a basic repeater-to-workstation connection, and how to
set up some basic network configurations.
Selecting a Location
You can place the repeater on a level surface (a desktop or cabinet, for
example) or mount it in a 19-inch rack using a rack mount kit.
Environmental Requirements
For environmental requirements, see Appendix A, “Technical Specifications” in
this guide.
Electrical Requirements
The power source must be a non-switched, three-pronged, grounded outlet.
CAUTION: Do not use a three-to-two pronged adapter at the outlet. Doing
so may result in electrical shock and/or damage to the repeater.
The electrical requirements for a repeater are as follows:
Table 3-1
Repeater Electrical Requirements
Voltage
100 to 240 VAC
Frequency
50 to 10 Hz
Power
0.30 to 0.15 Amps maximum
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3-2
Setting Up the Repeater
Data communications equipment is sensitive to variations in voltage supplied
by AC power supplies. Overvoltage, undervoltage, or transients can interfere
with data integrity and may damage your equipment.
CAUTION To protect against these voltage-related problems, power cables
should be properly grounded and the following power management methods
should be employed:
•
Use power protection devices. Various levels of protection can be
achieved by the use of surge protectors, line conditioners, and
uninterruptible power supplies.
•
Place the equipment on a dedicated circuit.
•
If a blackout occurs while your equipment is turned on, immediately
turn off the system (if the unit is equipped with a power switch) and
disconnect it from the power source. Leaving the system on and
plugged in under these power conditions may damage the equipment
when power is restored.
•
Turn off the equipment and unplug it during lightning storms.
Spatial Requirements
The repeater's dimensions are 1.75 x 17.4 x 8.3 inches, 4.5 x 44.8 x 21.3
centimeters (HxWxD). When you set the repeater on a level surface, allow at
least 2 inches (5.1 cm) on each side of the repeater for proper air circulation.
Rack-Mounting the Repeater
To rack-mount one or more repeaters, follow these steps:
1.
Before you install any repeater, secure the rack to the floor, another rack,
or the wall.
2.
Turn the repeater over so that the bracket slots are easily accessible.
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3-3
3.
To install the brackets in the repeater, insert the bracket clips into the
bracket slots on the bottom of the repeater. The brackets rest flat against
the bottom and the sides of the repeater, while the mounting holes that
secure the bracket to the rack face the front of the repeater. To flushmount the repeater, use Slots 1 and 3 (see Figure 3-1). To have the
repeater extend slightly out of the rack, use Slots 2 and 4.
4.
Push the bracket back until you feel it snap over the plastic ridge inside
the mounting slot. Figure 3-1 shows the installation of the brackets in
the repeater.
Right Bracket
Bracket Clips
Left Bracket
3
2
1
1
4
5
6
7
8
9
10
11
12
13
14
15
2
3
4
Bottom of Repeater
2
16
Right
Bracket
Slots
3
1
4
Left
Bracket
Slots
Figure 3-1. Installing the Mounting Brackets in the Repeaters
5. Turn the repeater face up.
6.
Select the height at which you want to install it in the rack and align the
right and left mounting brackets with a matching hole pattern. Position
the brackets on the inside of the wall rack.
7.
Fasten the mounting brackets to the wall rack using the four screws
provided.
To remove the repeater from the rack, follow these steps:
1.
Leave the repeater on the mounting brackets and unscrew the mounting
brackets from the rack. Be sure to support the repeater during this
procedure so that it does not fall from the rack.
Compaq Netelligent 1016 10Base-T Unmanaged Repeater User Guide
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3-4
Setting Up the Repeater
2.
To remove a bracket from the repeater, pull the bracket forward until it
unsnaps from the plastic ridge inside the mounting slot.
Connecting Power
To connect the repeater to power, follow these steps:
1.
Plug the female IEC connector of the power cord into the power cord
outlet on the back of the repeater.
2.
Insert the three-pronged plug on the power cord into an appropriate
power source as shown in Figure 3-2 (see also the Caution under
“Electrical Requirements” in the section “Selecting a Location” in this
chapter). The power source should be near the repeater and easily
accessible (within the 6-foot, 1.8-meter, cord distance).
When you plug in the power cord, all LEDs on the front panel are momentarily
ON, which confirms the repeater is operating correctly.
IMPORTANT: The repeater has no power switch. It receives power via the power
cord connection.
Disconnecting the Repeater from the
Power Source
Should you need to power down the repeater, you will need to properly
disconnect it from the power source. To power down the repeater, remove the
plug from the grounded power source (such as the wall outlet or power strip)
and not from the outlet on the back of the unit. The female plug on the power
cord is not a certified disconnect.
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3-5
Do
Remove the Power Plug
from the Grounded
Power Source
Don’t
Figure 3-2. Properly Disconnecting Power
Cabling Considerations
This section outlines twisted-pair wire specifications and describes how to
make a simple direct connection between a repeater and a workstation.
Twisted-Pair Wire Specifications
The twisted-pair wiring must meet the following minimum specifications and
requirements to ensure long-term LAN reliability. If the wiring does not meet
these specifications and requirements, you may need to install new
twisted-pair wiring.
■
Shielded or unshielded twisted-pair (STP or UTP)
■
Two pairs of wires
■
Depending on building codes, different insulation materials (Plenumrated or Teflon-coated wiring may be required in some areas.)
■
UTP wire specifications:
❏
Solid copper
❏
Nominal capacitance: Less than 16pF/foot
❏
Nominal impedance: 100 Ohms
Compaq Netelligent 1016 10Base-T Unmanaged Repeater User Guide
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3-6
Setting Up the Repeater
❏
Nominal attenuation: Less than 11.5db
❏
Wire gauge between 18 and 26 AWG
■
Maximum distance requirement 328 feet (100 meters). This distance
must include all cross-connect wire, wire in the walls, and any drop
cables from wall plates to workstations (see the next section to
determine the proper length). Maximum distances may be less for UTP
cable run underground, in conduit, or in large cable bundles.
■
Wiring in good condition with the insulation not frayed or worn
IMPORTANT: Never use gray satin station cable for connecting a repeater. This
flat cable, typically used for connecting telephones to wall jacks, is incompatible with
10Base-T systems.
The repeater is compatible with all AT&T Type D wiring (D-Inside wiring) and
AT&T PDS wiring. You can also use IBM Type 1 wiring (with two inside
conductors).
Two types of D-Inside wiring will work with the repeater:
DW8
Uses stranded wires and is relatively flexible; is best for shorter runs (less
than 50 feet, 16.2 meters) within the same room
D8W
Uses solid conductors and is less flexible; is best for longer runs through
ceilings and/or walls
A modular cord consists of D-Inside wiring with RJ-45 plugs on each end. The
connection between a repeater and a workstation consists of four pairs of
straight-through, D-Inside wiring (the repeater uses only two pairs), as shown in
Figure 3-3:
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3-7
Brown-White
White-Brown
Green-White
Blue-White
White-Blue
White-Green
Orange-White
White-Orange
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
White-Orange
Orange-White
White-Green
White-Blue
Blue-White
Green-White
White-Brown
Brown-White
Figure 3-3. D-Inside Wire
The cable in Figure 3-4 shows how the wire connected to Pin 1 must be twisted
with the wire connected to Pin 2, and the wire connected to Pin 3 must be
twisted with the wire connected to Pin 6. Pins 4, 5, 7, and 8 are reserved for
telephone and other services.
Plug Pin #
1
2
Transmit Pair
Plug Pin #
1
2
Receive Pair
3
6
3
6
Figure 3-4. Receive/Transmit Pair
Each RJ-45 jack on the repeater has the 10Base-T standard pin-out shown
below. A straight-through cable using the pair combinations below provides the
appropriate 10Base-T connection between the repeater and the workstation.
Table 3-2
10Base-T Pin-Out
1
TD+
2
TD-
3
RX+
6
RX-
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3-8
Setting Up the Repeater
Repeater-to-Workstation Connection
To connect the repeater to a workstation, follow these steps:
1.
Plug one end of the modular cord into a 10Base-T-equipped
workstation.
2.
Plug the other end of the modular cord directly into the desired port on
the repeater, as shown in Figure 3-5. The maximum end-to-end cable
distance is 328 feet (100 meters).
Media Expansion Port
PWR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
UPLINK
ACT
MDI
COL
MDI-X
MEP
X
10Base-T-Equipped
Workstation
Figure 3-5. Repeater-to-Workstation Connection
After you connect the workstation to the repeater and power on both units, the
repeater's PWR LED and the LED that corresponds to the connected port
should be ON. If the LEDs are OFF, verify that the connections are correct.
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3-9
Setting the Uplink Switch
The uplink switch on the front panel of the repeater converts Port 16 to an
uplinkable port. This feature allows the repeater to connect to another repeater
in a star topology. The default setting for the uplink switch is MDI-X (the
standard RJ-45 port). The uplink switch helps simplify twisted-pair wiring
between repeaters.
Typically, the repeater's RJ-45 jacks function as input ports for workstation
connections. Connecting an input port from one repeater to an input port of
another repeater normally requires a special crossover cable that reverses the
receive and transmit pairs. However, the repeater's uplink switch eliminates the
need for crossover cables by reconfiguring Port 16 as an output port.
Figure 3-6 shows the proper position for the uplink switch when connecting
Port 16 to a primary repeater. To change the switch to the desired position, use
a small, slotted screwdriver or a similar tool.
Uplinkable
"OUT" Port
UP LINK
MDI MDI-X
Standard
"IN" Repeater Port
(Default)
16
UP LINK
MDI MDI-X
Figure 3-6. Setting the Uplink Switch
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3-10
Setting Up the Repeater
Sample Network Configurations
The following figures represent network configurations for a repeater LAN.
Single Repeater Configuration
Figure 3-7 shows one repeater connected to network stations within a 328 foot
(100 meter) radius. You can place the repeater in a wiring closet or next to
network stations. In this example, Port 16 of the repeater is configured as an
input port to accommodate a workstation connection.
To additional nodes
Workstation
Workstation
Figure 3-7. Repeater-to-Workstation Connection
Multiple Repeater Configuration
Figure 3-8 shows three repeaters connected with unshielded twisted-pair wiring
to form a larger network. The maximum distance between any two repeaters is
328 feet (100 meters).
■
Repeater A is the primary repeater to which you uplink Repeaters B
and C.
■
Repeater B and Repeater C are uplinked to Repeater A (uplink switch is
set to the MDI position).
■
Repeater B and Repeater C each have Port 16 configured as
output ports.
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3-11
Repeater A
(Primary Repeater to which
Repeaters B and C are uplinked))
Repeater C
Repeater B
UPLINK SWITCH
(MDI Position)
Figure 3-9. Multiple-Repeater Connection
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3-12
Setting Up the Repeater
Maximum Repeater Path Model
Ethernet limits the total number of repeaters that can be in the path between any
two nodes (workstations and servers). Up to four repeaters can exist between
two nodes. Figure 3-10 shows an example of the maximum repeater path and
the maximum number of connections in that path.
IMPORTANT: The following example is intended only to illustrate the maximum
number of connections available for a repeater path. It does not represent a
recommended configuration. For example, a maximum network configuration could
contain 450 nodes (15 nodes on 15 repeaters = 225 nodes uplinked to one repeater;
and 15 nodes on 15 repeaters = 225 nodes uplinked to a second repeater; 450
nodes total) and 32 repeaters.
To Additional
Repeaters
To Additional
Repeaters
To Additional
Nodes
To Additional
Nodes
Workstation
Server
Maximum of 4 Repeaters
Between Any Two Nodes
Figure 3-10. Maximum Repeater Path Connection
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A-1
Appendix A
Technical Specifications
This appendix describes the technical specifications for the repeater.
Electrical Specifications
Connectors
■
Sixteen RJ-45 connectors for UTP/STP wiring
■
Optional Media Expansion Port (MEP)
■
IEC 320 power connector
■
Optional inline Alternate Media Connectors (AMCs) of the
following types:
❏
BNC connector for Thinnet
❏
DB-15 AUI connector
❏
One pair of 10Base-FL ST connectors
LED Indicators
■
Power (PWR)
■
Activities (ACT)
■
Collision (COL) status
■
Media Expansion Port (MEP)
■
RJ-45 port activity
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A-2 Technical Specifications
Power Requirements
■
100 to 240 VAC, 50 to 60 Hz
■
Power Consumption:
❏
Typical: 7W
❏
Maximum: 11W
Environmental Specifications
Operating Environment
■
32° to 120° F; 0° to 49° C
■
5% to 95% humidity (non-condensing)
Storage Environment
■
32° to 151° F; 0° to 66° C
■
5% to 95% humidity (non-condensing)
■
0 to 30,000 feet altitude; 0 to 9 kilometers
■
Convection
Cooling
Physical Specifications
■
1.75 x 17.4 x 8.3 inches or 4.45 x 43.00 x 21.34 centimeters (HxWxD)
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G-1
Glossary
10Base-2
An IEEE Standard (802.3) for local area networks.
Complying networks must be able to carry information at
a rate of 10 Mb/s over distances up to 606 feet (185
meters) of thin coaxial cable.
10Base-5
An IEEE Standard (802.3) for local area networks.
Complying networks must be capable of carrying
information at a rate of 10 Mb/s over distances up 1640
feet (500 meters) of thick coaxial cable.
10Base-T
An IEEE Standard (802.3) for local area networks.
Complying networks must be able to carry information at
a rate of 10 Mb/s over distances up to 328 feet (100
meters) of unshielded twisted-pair cable.
66-Type Wiring Environment
Also called Premises Distribution System (PDS). The
AT&T wiring system in which the telephone nodes and
other communications devices connect to the crossconnect block.
110-Type Wiring Environment
Also called Premises Distribution Systems (PDS). The
AT&T wiring system in which the telephone nodes and
other communications devices can be easily added and
rearranged with modular wiring components and
patch cords.
802.3
An IEEE standard for Ethernet local area networks based
on Carrier Sense Multiple Access with Collision
Detection (CSMA/CD), which includes 10Base-2,
10Base-5, and 10Base-T.
Adapter
A device that supports the interconnection of different
sizes and/or types of plugs.
Attachment Unit Interface (AUI)
The interface between the medium attachment unit
(MAU) and a node within a local area network (LAN).
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G-2
Glossary
Backplane
The data bus connections that interconnects different
communication modules inside a network
concentrator.
BNC
A thin Ethernet coax connector.
Bridged Tap (Stub)
A cable (or cord) connected to another cable (or cord)
at a point other than its end. Such a tap causes
impairment of network signal transmissions.
Carrier Sense
The monitoring of a local area network by a node to
determine if another node is transmitting.
Coaxial Cable
A cable with at least one transmission line consisting
of two conductors, an inner conductor, and an outer
conductor insulated from one another by a dielectric.
Coaxial cable carriers higher frequencies than twisted
pair cable and offers a broader bandwidth. It
commonly transmits video signals, but can also be
used for certain high-speed data applications.
Collision
A condition that occurs when two nodes attempt to
transmit on the network at the same time. When a
collision occurs, both nodes recognize the collision
stop transmission wait for a random time interval and
then attempt to retransmit.
Concentrator
A device that provides connectivity between data
terminals in a network.
Conductor
A medium such as copper wire that can carry
electrical current.
Configuration
The layout of nodes and components in the network.
Dielectric
A substance that does not conduct electrical current.
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G-3
Ethernet Transceiver
A device used in an Ethernet local area network that
couples data terminal equipment to other transmission
media.
Fiber Adapter
A hardware device that converts System 4000
network signals between electrical signals on twistedpair wire and light pulses transmitted on fiber optic
cable.
Fiber Optic Cable
A transmission medium consisting of a core of glass
surrounded by strengthening material and a protective
jacket. Signals are transmitted as light pulses and
introduced into the optical fiber by a laser or light
emitting diodes (LEDs).
Jabber
A condition in which the transmission of network
signals exceeds the maximum allowable transmission
time. Jabber may be caused by a faulty node or wiring
connection.
Link Integrity
A diagnostic tool that continuously checks wiring for
breaks opens or shorts and notifies the user if those
conditions exist.
Local Area Network (LAN)
A data communications network consisting of
electronic devices such as host computers, file servers,
and personal computers often connected via twistedpair wire or coaxial cable. Typically, the network is
limited to a single premise.
Medium Attachment Unit (MAU)
A device used in a data station to couple the data
terminal equipment (DTE) to the transmission
medium.
Modular Cord
A cord containing four twisted pairs of wires with a
modular plug on one or both ends.
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G-4
Glossary
Network Interface Connector (NIC)
A plug-in expansion board that enables computers to
send and receive data through the network.
Node
A computer workstation or other device in a network.
Plenum Cord
A communications cord with fire-retardant insulation
generally used in suspended ceilings and other places
where air circulates back to the building's airconditioning system.
Port
A concentrator connection that connects PCs and
other node devices to the network.
Satellite Closet
A room where cross-connect hardware is located and
where cabling from wall jacks is terminated.
Transceiver Cable
A cable that connects two hardware devices one
having a D-type DCE connector and the other having
a D-type DTE connector. Also called an “AUI'' cable.
Unshielded Twisted Pair (UTP) Wire
Two insulated copper wires twisted together to reduce
the potential for signal interference between pairs. In
cables greater than 25 pairs, the twisted pairs are
grouped and bound together in a common cable
sheath. Twisted pair cable is the most common of
transmission media.
Wiring Closet
A room, closet, or cabinet where station cable is
terminated on cross-connect blocks.
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I-1
Index
F
A
Features 1-1
Fiber 1-1
Fiber connectors 2-3
Fiber installation 2-3
Flashing yellow LEDs 1-4
Frequency 3-1
Alternate Media Connectors
See AMCs
AMCs 2-3, A-1
illustration 2-1
part numbers 2-1
AUI 1-1, A-1
AUI installation 2-3
AW1 jumper 2-2
H
Humidity A-2
I
IEEE 802.3 1-1
Installing BNC 2-2
Installing brackets 3-3
B
BNC 1-1, A-1
BNC connector 2-1
BNC jumper settings 2-2
L
LAN 3-10
LEDs
ACT 1-3
at power up 2-3
COL 1-3
description 1-1, 1-4
illustration 1-3
in specifications A-1
Link Status 1-3
MEP 1-3
PWR 1-3
RJ-45 port activity
Link integrity 1-1
Link Status 1-3
Location requirements 3-1
C
Connecting power 3-3
Connectors A-1
Cooling A-2
D
D8W 3-6
Dimensions A-2
D-Inside wiring types 3-6
DW8 3-6
E
Electrical requirements 3-1
Electrical specifications A-1
Environmental specifications A-2
Ethernet 3-12
Ethernet networks 1-1
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I-2 Index
M
Maximum path model 3-12
MDI-X 3-9
Media Expansion Port 1-1
MEP 1-1, 2-1, 2-3, A-1
Multiple connections 3-10
Topology 1-1, 3-9
Twisted-pair wiring requirements
3-5
Type D wiring 3-6
U
Uninterruptible power supplies 3-2
Uplink port 1-1, 3-9
Uplink switch 3-9
UTP wire 3-5
P
PDS wiring 3-6
Power
disconnecting 3-4
requirements A-1
switch 3-4
Power cord 1-5
V
Voltage 3-1
R
W
Rack mounting 3-2
Receive/Transmit 3-7
RJ-45 1-3, 3-6, 3-9
wiring 3-5
S
Single configuration 3-10
Specifications
electrical A-1
environmental A-2
ST connectors A-1
T
Technical specifications A-1
Teflon-coated wiring 3-5
Telephone installations 3-5
10Base-FL A-1
10Base-T pinout 3-7
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