Handleiding hp procurve 408

Handleiding hp procurve 408
installation guide
hp procurve
switch 408
www.hp.com/go/hpprocurve
honda.book Page i Wednesday, April 18, 2001 2:50 PM
H
HP ProCurve
Switch 408
Installation Guide
honda.book Page ii Wednesday, April 18, 2001 2:50 PM
© Copyright 2001 Hewlett-Packard Company
All Rights Reserved.
This document contains information
which is protected by copyright. Reproduction, adaptation, or translation
without prior permission is prohibited,
except as allowed under the copyright
laws.
Publication Number
J4097-90101
March 2001
Applicable Product
HP ProCurve Switch 408 (HP J4097B)
Disclaimer
The information contained in this document is subject to change without notice.
HEWLETT-PACKARD COMPANY MAKES
NO WARRANTY OF ANY KIND WITH
REGARD TO THIS MATERIAL,
INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE. HewlettPackard shall not be liable for errors
contained herein or for incidental or
consequential damages in connection
with the furnishing, performance, or use
of this material.
Hewlett-Packard assumes no responsibility for the use or reliability of its software on equipment that is not furnished
by Hewlett-Packard.
Warranty
A copy of the specific warranty terms
applicable to your Hewlett-Packard products and replacement parts can be
obtained from your HP Sales and Service
Office or authorized dealer.
Safety
Before installing and operating this
product, please read the “Installation
Precautions” in chapter 2, “Installing the
Switch 408”, and the safety statements in
appendix C, “Safety and EMC Regulatory
Statements”.
Hewlett-Packard Company
8000 Foothills Boulevard, m/s 5552
Roseville, California 95747-5552
http://www.hp.com/go/hpprocurve
honda.book Page i Wednesday, April 18, 2001 2:50 PM
Contents
1 Introducing the Switch 408
Front of the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Network Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Back of the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Switch Operation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Address Table Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
2 Installing the Switch 408
Included Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Installation Precautions: . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
1. Prepare the Installation Site . . . . . . . . . . . . . . . . . . . . . . 2-5
2. Verify the Switch Passes Its Self Test . . . . . . . . . . . . . . 2-6
3. Mount the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
4. Connect the Switch to a Power Source . . . . . . . . . . . . . 2-9
5. Connect the Network Cables . . . . . . . . . . . . . . . . . . . . . 2-9
Sample Network Topologies . . . . . . . . . . . . . . . . . . . . . . . . 2-10
As a Desktop Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
As a Segment Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
i
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3 Troubleshooting
Basic Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Diagnosing With the LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Hardware Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Testing the Switch by Resetting It . . . . . . . . . . . . . . . . . . 3-5
Testing Twisted-Pair Cabling . . . . . . . . . . . . . . . . . . . . . . . 3-5
Testing End-to-End Network Communications . . . . . . . 3-6
HP Customer Support Services . . . . . . . . . . . . . . . . . . . . . 3-6
A Specifications
Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Electrical
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
B Cables and Connectors
Twisted-Pair Cable/Connector
Pin-Outs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Straight-Through Twisted-Pair Cable . . . . . . . . . . . . . . . . B-2
Crossover Twisted-Pair Cable . . . . . . . . . . . . . . . . . . . . . . B-3
Twisted-Pair Cable Pin Assignments . . . . . . . . . . . . . . . . B-4
C Safety and EMC Regulatory Statements
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
EMC Regulatory Statements . . . . . . . . . . . . . . . . . . . . . . . . C-9
ii
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1
Introducing the Switch 408
The HP ProCurve Switch 408 is a multiport switch that can be used
to build high-performance switched workgroup networks. This
switch is a store-and-forward device that offers low latency for highspeed networking.
HP ProCurve Switch 408 (HP J4097B)
Throughout this manual, the name of this switch will be abbreviated
as the Switch 408.
The Switch 408 has 8 auto-sensing 10/100Base-TX RJ-45 ports. With
this switch you can build a switched network infrastructure by
connecting it to hubs, other switches, or routers; or you can connect
directly to computers, printers, and servers to provide dedicated
bandwidth to those devices.
This chapter describes your Switch 408 including:
■
Front and back of the switch
■
Features
■
Switch operation overview
1-1
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Introducing the Switch 408
Front of the Switch
Front of the Switch
Power
LED
Fault
LED
10/100Base-TX RJ-45 ports
(all ports have the HP Auto-MDIX feature)
Link/Act, FDx, and 100
LEDs for each port
Network Ports
The switch has 8 auto-sensing 10/100Base-TX ports with RJ-45
connectors. All of the ports have the HP Auto- MDIX feature, which
means that either a straight-through or cross-over cable can be used
for any connection to another device, and the switch automatically
adjusts the pin assignments to complete the connection.
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Introducing the Switch 408
Front of the Switch
LEDs
Table 1-1.
Switch LEDs
Switch LEDs
State
Meaning
Pwr
(green)
On
The switch is receiving power.
Off
The switch is NOT receiving power.
Fault
(orange)
Off
The normal state; indicates that there are no fault
conditions on the switch.
On
The switch has a hardware failure, or has failed
its self test. See chapter 3, “Troubleshooting” for
more information.
On
Indicates the port is operating correctly and
receiving a link signal from the connected device.
Off
One of these conditions exists:
• no active network cable is connected to the
port
• the port is not receiving a link signal
Flickering
Indicates that there is network activity on the
port.
FDx
(green)
On
The corresponding port is operating at full duplex
Off
The corresponding port is operating at half duplex
100
(green)
On
The corresponding port is operating at 100 Mbps.
Off
The corresponding port is operating at 10 Mbps.
Link/Act
(green –
overlaid with
the port
number)
1-3
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Introducing the Switch 408
Back of the Switch
Back of the Switch
.
power connector
Power Connector
The Switch 408 does not have a power switch; it is powered on when
the AC power adapter is plugged in to an active power source and to
the switch.
Caution
1-4
Use only the AC power adapter supplied with the
switch. Use of other adapters, including adapters that
came with other HP network products, may result in
damage to the equipment.
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Introducing the Switch 408
Features
Features
The features of the Switch 408 include:
■
8 auto-sensing 10/100Base-TX RJ-45 ports—all ports can sense
the connection speed, 10 Mbps or 100 Mbps, and automatically
operate at that speed
■
HP Auto-MDIX on all ports—all ports allow you to use either a
straight-through or crossover cable to connect to any other
RJ-45 network device. There are no switches or buttons to deal
with, and no more worrying about what type of cable is needed
to connect to an end node, or to another switch or hub.
■
plug-and-play networking—all ports are enabled—just connect
the network cables to active network devices and your switched
network is operational
■
automatic learning of the hardware addresses in the switch’s
1000-entry address forwarding table
■
auto-negotiation of half/full duplex on all ports
■
auto-negotiation of flow control for ports operating at full duplex
Switch Operation Overview
Address Table Operation
Address Learning. As devices are connected to the switch ports,
either directly or through hubs or other switches that are connected
to the switch, the MAC addresses of those devices are learned auto-
1-5
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Introducing the Switch 408
Switch Operation Overview
matically and stored in the Switch 408’s 1000-entry address table. The
switch also identifies the number of the port on which each address
is learned so it knows the relative network location of each device.
Forwarding, Filtering, Flooding. When the switch receives a
packet, it determines the destination address, and looks for the
address in the address table. Based on the port location of that
address, the switch then determines whether to forward, filter-out, or
flood the packet.
■
forward - if the destination address is on a different port than the
one on which the packet was received, the packet is forwarded
to the destination port and on to the destination device.
■
filter out - if the destination address is on the same port as the
one on which the packet was received, the packet is filtered out.
The switch thereby isolates local traffic so the rest of the network
connected to the switch does not use bandwidth dealing with
unnecessary traffic.
■
flood - whenever a new destination address is found in a packet
received on a port, the destination address will not yet be in the
switch’s address table and the Switch 408 cannot know whether
to forward or filter out the packet. In this case, it sends the packet
to all the other switch ports. This is referred to as “flooding”.
When the destination device receives the packet, it replies, and
the switch learns the new address from the reply packet. Then,
all future packets destined for that address are forwarded or
filtered out appropriately.
Network Moves and Changes. When devices are moved in the
network, and become connected to a different switch port, the Switch
408 automatically recognizes the change and updates the address
table with the new port locations of the devices. Communication with
the connected devices is thereby automatically maintained.
1-6
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2
Installing the Switch 408
The HP ProCurve Switch 408 is easy to install. It comes with four
rubber feet that can be attached so the switch can be securely located
on any level surface (for example, a table or shelf). A mounting kit
(5183-7210) is also available that provides a variety of mounting
options including in a standard 19-inch EIA equipment rack or
cabinet, on a wall, or under a horizontal surface. Contact your HP
Networking products reseller to order the mounting kit.
This chapter shows you how to install your Switch 408.
Included Parts
The Switch 408 has the following components shipped with it:
■
HP ProCurve Switch 408 Installation Guide (J4097-90101), this
manual
■
Customer Support/Warranty booklet
■
Four rubber feet
■
AC power adapter, one of the following:
Argentina
Australia/New Zealand
China
Europe/Russia
Japan
South Korea
United Kingdom/Hong Kong/Singapore
United States/Canada/Mexico/Taiwan/Brazil
0950-3659
0950-3358
0950-3347
0950-3349
0950-3352
0950-3351
0950-3350
0950-3348
2-1
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Installing the Switch 408
Installation Procedures
Installation Procedures
Summary
Follow these easy steps to install your switch. The rest of this chapter
provides details on these steps.
1.
Prepare the installation site. Make sure of the following:
• the network cabling is the correct type and length. See page
2-5.
• the network topology is correct. See page 2-10.
• no devices connected to the switch have a fixed full-duplex
configuration (they must be able to auto-negotiate the duplex
mode or be fixed at half duplex). See page 2-4.
See page 2-3 for installation precautions.
2.
Verify that the switch passes its self test. This is a simple
process of plugging the switch into a power source and observing
that the LEDs on the switch’s front panel show correct operation.
See page 2-7.
3.
Mount the switch. The Switch 408 can be mounted on any
horizontal surface. The optional mounting kit (5183-7210)
provides other options including mounting two switch units sideby-side in a standard 19-inch telco rack or equipment cabinet.
4.
Connect power to the switch. Once the switch is mounted,
plug in the AC power adapter. See page 2-9.
5.
Connect the network devices. Using the appropriate network
cables, connect computers, servers, printers and other peripherals, and other network devices including other switches, hubs,
or routers to the switch ports. See page 2-9.
At this point, the switch is fully installed and your network should be
up and running. See the rest of this chapter if you need more detailed
information on any of these installation steps.
2-2
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Installing the Switch 408
Installation Procedures
Installation Precautions:
Follow these precautions when installing your Switch 408.
Cautions
■
Make sure that you use the power adapter supplied with
the switch to connect it to an AC power source.
■
When installing the switch, since the unit does not have
an On/Off power switch, an AC power outlet must be
located near the switch and should be easily accessible
in case the switch needs to be powered off.
■
Make sure that the switch does not overload the power
circuits, wiring, and over-current protection. To determine the possibility of overloading the supply circuits,
add together the amperage ratings of all devices installed
on the same circuit as the switch and compare the total
with the rating limit for the circuit. The maximum
amperage ratings are usually printed on the devices near
the AC power connectors or power adapter connectors.
■
Do not install the switch in an environment where the
operating ambient temperature might exceed 55°C
(131°F).
■
Make sure the air flow around the sides of the switch is
not restricted.
■
If you rack mount the Switch 408 (using the mounting kit,
5183-7210), the rack or cabinet should be adequately
secured to prevent it from becoming unstable and/or
falling over. Devices installed in a rack or cabinet should
be mounted as low as possible, with the heaviest device
at the bottom and progressively lighter devices installed
above.
Continued on the next page.
2-3
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Installing the Switch 408
Installation Procedures
■
2-4
Connect no devices that have a fixed full-duplex
configuration. Because the switch 408 complies with
the IEEE 802.3u standard, if a device connected to the
switch has a fixed configuration of full duplex, the device
will not connect correctly to the switch. Make sure all
devices connected to the Switch 408 are configured to
auto negotiate, or are configured to connect at half
duplex. For more information, see the “Basic Troubleshooting Tips” in chapter 3, “Troubleshooting”.
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Installing the Switch 408
Installation Procedures
1. Prepare the Installation Site
■
Cabling Infrastructure - Make sure that the cabling infrastructure meets the necessary network specifications. Because of the
HP Auto-MDIX feature, for connections to end nodes
(computers, servers, printers and other peripherals), or connections to hubs or other switches, you can use “straight-through”
cables. “Crossover” cables can also be used for any of these
connections. See the following table for cable types and lengths,
and see appendix B, “Cables and Connectors” for more information:
Table 2-1.
■
Summary of Cable Types to Use with the Switch
Port Type
Cable Type
Length Limits
10Base-T
category 3, 4, or 5,
100-ohm unshielded
twisted-pair (UTP) or
shielded twisted-pair
(STP)
category 3, 4, or 5 - 100 meters
Note: Since the 10Base-T operation
is through 10/100Base-TX ports, if you
ever want to upgrade the ports to
100Base-T, it would be best to cable
the ports initially with category 5
cable.
100Base-TX
category 5, 100-ohm
UTP or STP
100 meters
Installation Location - Before installing the switch, plan its
location and orientation relative to other devices and equipment.
At the front of the switch, leave at least 7.6 cm (3 inches) of space
for the twisted-pair cabling. At the back of the switch, leave at
least 2.6 cm (1 inch) of space for the adapter’s power cord.
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Installing the Switch 408
Installation Procedures
2. Verify the Switch Passes Its Self Test
Before mounting the switch in its network location, you should first
check that it is working properly by plugging it into a power source
and verifying that it passes its self test.
1.
Connect the adapter’s power cord to the power connector on the
back of the switch, and then plug the AC power adapter into a
nearby properly grounded electrical outlet.
Connect power cord to
the power connector
Note
The Switch 408 does not have a power switch. It is powered
on when the AC power adapter is connected to the switch
and to a power source.
Caution
Use only the AC power adapter supplied with the
switch. Use of other adapters, including those that
came with other HP network products, may result in
damage to the equipment.
2.
2-6
Check the LEDs on the switch. The LED behavior is described on
the next page.
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Installing the Switch 408
Installation Procedures
Switch port LEDs
Power and Fault LEDs
When the switch is powered on, it performs its diagnostic self
test. The self test takes approximately 3 seconds to complete.
LED Behavior:
During the self test:
•
All the switch and port LEDs are on.
When the self test completes successfully:
•
The Power LED stays on and the Fault LED goes off.
•
The port LEDs (Link/Act, FDx, and 100) go into their normal
operational mode.
If the LED display is different than what is described above,
especially if the Fault LED stays on for more than 5 seconds, the
self test has not completed correctly. Refer to chapter 3, “Troubleshooting” for diagnostic help.
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Installing the Switch 408
Installation Procedures
3. Mount the Switch
After you have verified that the switch passes its self test, you are
ready to mount the switch in a stable location. The Switch 408 can be
mounted in these ways:
■
on a horizontal surface
■
in a rack or cabinet, or on a wall (requires optional bracket kit)
Horizontal Surface Mounting
Attach the supplied rubber feet to the bottom of the switch, then place
the switch on a table or other horizontal surface. Use a sturdy surface
in an uncluttered area. You may want to secure the networking cables
and switch power cord to the table legs or other part of the surface
structure to help prevent people from tripping over the cords.
Note
Make sure the air flow is not restricted around the sides of
the switch.
Rack or Wall Mounting
Using the optional bracket kit (5183-7210), two Switch 408 units can
be mounted together in any EIA-standard 19-inch telco rack or in an
equipment cabinet such as a server cabinet. The switch brackets can
also be used to mount the switch on a wall or under a horizontal
surface. Installation instructions are included with the bracket kit.
Caution
2-8
For safe operation, please read the Installation
Precautions on page 2-3 before mounting the switch.
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Installing the Switch 408
Installation Procedures
4. Connect the Switch to a Power Source
1.
Plug the included AC power adapter into the switch’s power
connector and into a nearby AC power source.
2.
Re-check the LEDs during self test. See “LED Behavior” on
page 2-7.
5. Connect the Network Cables
Using the RJ-45 Connectors (10/100Base-TX ports)
To connect:
Push the RJ-45 plug into the
RJ-45 jack until the tab on
the plug clicks into place.
When power is on for the
switch and for the connected
device, the Link/Act LED for
the port should light to
confirm a powered-on
device (for example, an end
node) is at the other end of
the cable.
If the Link LED does not go
on when the network cable is
connected to the port, see
“Diagnosing With the LEDs”
in chapter 3, “Troubleshooting”.
RJ-45 connector
100-ohm unshielded or shielded
twisted-pair cable:
• Category 3, 4, or 5 for 10 Mbps ports
• Category 5 only for 100 Mbps ports
Maximum distance: 100 meters
To disconnect:
Press the small tab on the plug and pull the plug out of the jack.
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Installing the Switch 408
Sample Network Topologies
Sample Network Topologies
This section shows you two sample network topologies in which the
Switch 408 is implemented.
Note
Make sure the network into which you are installing the
Switch 408 has a valid topology: there should be no loops
in the data paths connected to the switch, and all twistedpair connections should be no more than 100 meters.
As a Desktop Switch
Server
twisted-pair
“straight-through”
or “crossover”
cables
Switch 408
PCs and
peripherals
The Switch 408 is designed to be used primarily as a desktop switch
to which end nodes, printers and other peripherals, and servers are
directly connected, as shown in the above illustration.
2-10
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Installing the Switch 408
Sample Network Topologies
As a Segment Switch
Server
100 Mbps connection through category 5
twisted-pair cable
100Base-TX
connection to a
backbone switch
Switch 408
twisted-pair
cables
twisted-pair
cables
Ethernet
Hubs
PCs, printers,
and local
servers
In general, the Switch 408 is designed to be used as a desktop switch,
but it can also be used as a segment switch. That is, it can be used for
interconnecting network segments—simply connect the network
hubs that form those segments to the switch.
In the illustration above, two Ethernet hubs with PCs, printers, and
local servers attached, are both connected to a Switch 408. The
devices attached to the two hubs can now communicate with each
other through the switch. They can also all communicate with the
server that is connected to the switch. Make sure connections from
servers to the Switch 408 are at 100 Mbps to minimize network
congestion to the servers.
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Installing the Switch 408
Sample Network Topologies
Note that because of the HP Auto-MDIX feature, all twisted-pair
connections between the switch and the MDI-X ports or MDI ports
on hubs, and the connections to the end nodes and the servers can be
through “straight-through” cables. You can also use “crossover”
cables for these connections. In either case, the Switch 408 automatically adjusts to the type of cable used and to the type of device at the
other end of the connection.
The 100 Mbps connection to the server and any other 100 Mbps
connections must be through category 5 or better cable.
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3
Troubleshooting
This chapter describes how to troubleshoot your Switch 408 including
the following:
■
basic troubleshooting tips (page 3-1)
■
diagnosing with the LEDs (page 3-3)
■
hardware diagnostic tests (page 3-5)
■
HP Customer Support Services (page 3-6)
Basic Troubleshooting Tips
Most problems are caused by the following situations:
■
Connecting to devices with a fixed full-duplex configuration. The Switch 408 ports are set to auto-negotiate the link
characteristics. That is, when connecting to attached devices, the
switch will operate in one of two ways to determine the link speed
and the communication mode (half duplex or full duplex):
•
if the connected device is also set to auto negotiate, the
switch will automatically negotiate both link speed and
communication mode
•
if the connected device has a fixed configuration, for example
(100 Mbps, and half or full duplex), the switch will automatically sense the link speed, but will default to a communication mode of half duplex
3-1
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Troubleshooting
Basic Troubleshooting Tips
Because the Switch 408 behaves in this way (in compliance with
the IEEE 802.3u standard), if a device connected to the switch
has a fixed configuration at full duplex, the device will not
connect correctly to the Switch 408. The result will be high error
rates and high collision rates, and very inefficient communications between the switch and the device.
Make sure that all devices connected to the Switch 408 are
configured to auto negotiate, or are configured to connect at half
duplex (all hubs are configured this way, for example).
■
Faulty or loose cables. Look for loose or obviously faulty
connections. If they appear to be OK, make sure the connections
are secure. If that does not correct the problem, try a different
cable.
■
Non-standard cables. Non-standard and miswired cables may
cause numerous network collisions and other network problems,
and can seriously impair network performance. Use a new
correctly-wired cable or compare your cable to the cable in
appendix B, “Cables and Connectors” for pinouts and correct
cable wiring. A category 5 cable tester is a recommended tool for
every 100Base-T network installation.
■
Improper Network Topologies. It is important to make sure
you have a valid network topology. Common topology faults
include excessive cable length and too many repeaters (hubs)
between end nodes. If you have network problems after recent
changes to the network, change back to the previous topology. If
you no longer experience the problems, the new topology is
probably at fault. Refer to the Network Design Guide for topology
configuration guidelines. This guide can be found online at the
HP World Wide Web site for networking products, http://
www.hp.com/go/hpprocurve. You can find it quickly by searching
for “Network Design Guide”.
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Troubleshooting
Diagnosing With the LEDs
In addition, you should make sure that your network topology
contains no data path loops. Between any two end nodes, there
should be only one active cabling path at any time. Data path
loops will cause broadcast storms that will severely impact your
network performance.
Diagnosing With the LEDs
Table 3-1 shows LED patterns on the switch that indicate problem
conditions.
1.
Check in the table for the LED pattern that you see on your
switch.
2.
Refer to the corresponding diagnostic tip on the next few pages.
Table 3-1.
LED Error Indicators
LED Pattern Indicating Problems
Power
Fault
Port Link
Diagnostic Tips
Off with power
cord plugged in
*
*
➊
On
Prolonged
On
*
➋
On
Off
Off with cable
connected
➌
* This LED is not important for the diagnosis.
3-3
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Troubleshooting
Diagnosing With the LEDs
Diagnostic Tips:
Tip
Number
3-4
Problem
Solution
➊
The switch’s
power adapter
is not plugged
into an active
AC power
source, or the
power adapter
may have failed.
1. Verify that the AC power adapter is plugged
into an active power source and to the switch.
Make sure these connections are snug.
2. Try power cycling the switch by unplugging
and plugging in the power.
3. If the Power LED is still not on, verify that the
AC power source works by plugging another
device into the outlet. Or try plugging the
switch into a different outlet.
If this condition persists, the switch’s power
adapter may have failed. Call your HP-authorized
LAN dealer, or use the electronic support
services from HP to get assistance. See the
Customer Support/Warranty booklet for more
information.
➋
A switch
hardware
failure was
detected during
self test.
Try power cycling the switch. If the fault
indication reoccurs, the switch may have failed.
Call your HP-authorized LAN dealer, or use the
electronic support services from HP to get
assistance. See the Customer Support/Warranty
card for more information.
➌
The network
connection is
not working
properly.
Try the following procedures:
• For the indicated port, verify that both ends of
the cabling, at the switch and the connected
device, are secure.
• Verify the connected device and switch are
both powered on and operating correctly.
• Verify that the connected devices comply with
the appropriate IEEE 802.3 standard, including
transmission of the Link signal. See “Testing
Twisted-Pair Cabling” on page 3-5.
• If the other procedures don’t resolve the problem, try using a different port or a different
cable.
honda.book Page 5 Wednesday, April 18, 2001 2:50 PM
Troubleshooting
Hardware Diagnostic Tests
Hardware Diagnostic Tests
Testing the Switch by Resetting It
If you believe that the switch is not operating correctly, you can reset
the switch to test its circuitry. To reset the switch, unplug and plug in
the adapter’s power cord (power cycling).
Power cycling causes the switch to perform its power-on self-test, and
almost always will resolve any temporary operational problems.
Checking the Switch LEDs
The self-test passes if the Fault LED on the front of the switch goes
off after approximately 3 seconds. If this LED stays on longer than 5
seconds, an error condition has been detected on the switch.
See “Diagnosing With the LEDs” on page 3-3 for information on
interpreting the LED patterns.
Testing Twisted-Pair Cabling
If you think the cable should work but still isn’t working, it may not
be compatible with the IEEE 802.3 Type 10Base-T or 100Base-TX
standards. The twisted-pair cables attached to the Switch 408 must
be compatible with these standards. To verify that your cable is
compatible with these standards, use a qualified cable test device.
HP also offers a wire testing service. Contact your HP-authorized LAN
dealer or your local HP sales office for more information.
3-5
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Troubleshooting
HP Customer Support Services
Testing End-to-End Network Communications
Both the switch and the cabling can be tested by running an end-toend communications test -- a test that sends known data from one
network device to another through the switch. For example, if you
have two PCs on the network, both connected to the switch, you can
use a link-level packet test (link test) or Ping test to verify that the
entire communication path between the two PCs is functioning
correctly. See your LAN adapter documentation for more information
on running a link test or Ping test.
HP Customer Support Services
If you are still having trouble with your switch, Hewlett-Packard
offers support 24 hours a day, seven days a week through the use of
a number of automated electronic services. See the Customer
Support/Warranty booklet that came with your switch for information
on how to use these services to get technical support. The HP
networking products World Wide Web site,
http://www.hp.com/go/hpprocurve also provides up-to-date support
information.
Additionally, your HP-authorized network reseller can provide you
with assistance, both with services that they offer and with services
offered by HP.
3-6
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A
Specifications
Physical
Width:
19.9 cm (7.8 in)
Depth:
12.1 cm (4.8 in)
Height:
4.0 cm (1.6 in)
Weight :
0.72 kg (1.60 lbs)
Electrical
DC voltage:
13 volts
Maximum current:
0.8 A
Environmental
Operating
Non-Operating
Temperature:
0°C to 55°C (32°F to 131°F)
-40°C to 70°C (-40°F to 158°F)
Relative humidity:
(non-condensing)
10% to 90% at 40°C (104°F)
10% to 90% at 65°C (149°F)
Maximum altitude:
4.6 km (15,000 ft)
4.6 km (15,000 ft)
A-1
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Specifications
Connectors
■
The 10/100 Mbps RJ-45 twisted-pair ports are compatible with the
IEEE 802.3u 100Base-TX and IEEE 802.3 Type 10Base-T standards. All ports include the HP Auto-MDIX feature, which allows
the use of either “straight-through” or “crossover” cables for any
twisted-pair connection.
Safety
The Switch 408 complies with these safety standards:
■
EN60950 / IEC 950
■
CSA/NRTL (CSA 22.2 No. 950 & UL 1950)
A-2
honda.book Page 1 Wednesday, April 18, 2001 2:50 PM
B
Cables and Connectors
This appendix includes minimum pin-out information and specifications for cables that should be used with the Switch 408.
Note
Incorrectly wired cabling is the most common cause of
problems for LAN communications. HP recommends that
you work with a qualified LAN cable installer for assistance
with your cabling requirements.
Twisted-Pair Cable/Connector
Pin-Outs
The RJ-45 ports (10 Mbps and 100 Mbps) on the Switch 408 have the
HP Auto-MDIX feature, which allows you to use either “straightthrough” or “crossover” twisted-pair cables for connections to any
other network device that has RJ-45 connectors.
These additional rules apply to the twisted-pair cabling:
■
All twisted-pair wires used must be twisted through the entire
length of the cable. The wiring sequence must conform to the
ANSI/TIA/EIA-568-B cable specification. See “Twisted-Pair Cable
Pin Assignments” later in this appendix for a listing of the signals
used on each pin.
B-1
honda.book Page 2 Wednesday, April 18, 2001 2:50 PM
Cables and Connectors
Twisted-Pair Cable/Connector Pin-Outs
■
For 10 Mbps connections to the ports, you can use 100-ohm
Category 3, 4, or 5 unshielded (UTP) or shielded (STP) twistedpair cable, as supported by the IEEE 802.3 Type 10Base-T standard.
■
For 100 Mbps connections to the ports, use 100-ohm Category 5
UTP or STP cable only, as supported by the IEEE 802.3u Type
100Base-TX standard.
Straight-Through Twisted-Pair Cable
Connector “A”
Connector “B”
Straight-Through Cable
white/orange
orange/white
white/green
green/white
Note
Pins 1 and 2 on connector “A” must be wired as a twisted
pair to pins 1 and 2 on connector “B”.
Pins 3 and 6 on connector “A” must be wired as a twisted
pair to pins 3 and 6 on connector “B”.
Pins 4, 5, 7, and 8 are not used in this application, although
they may be wired in the cable.
B-2
honda.book Page 3 Wednesday, April 18, 2001 2:50 PM
Cables and Connectors
Twisted-Pair Cable/Connector Pin-Outs
Crossover Twisted-Pair Cable
Connector “A”
Connector “B”
Crossover Cable
white/orange
orange/white
white/green
green/white
Note
Pins 1 and 2 on connector “A” must be wired as a twisted
pair to pins 3 and 6 on connector “B”.
Pins 3 and 6 on connector “A” must be wired as a twisted
pair to pins 1 and 2 on connector “B”.
Pins 4, 5, 7, and 8 are not used in this application, although
they may be wired in the cable.
B-3
honda.book Page 4 Wednesday, April 18, 2001 2:50 PM
Cables and Connectors
Twisted-Pair Cable/Connector Pin-Outs
Twisted-Pair Cable Pin Assignments
Twisted-Pair Straight-Through Cable
Switch End
Computer, Transceiver, or
Other MDI Port End
Signal
Pins
Pins
Signal
receive +
receive transmit +
transmit -
1
2
3
6
1
2
3
6
transmit +
transmit receive +
receive -
Twisted-Pair Crossover Cable
Switch End
Hub or Switch Port, or Other
MDI-X Port End
Signal
Pins
Pins
Signal
receive +
receive transmit +
transmit -
1
2
3
6
6
3
2
1
transmit transmit +
receive receive +
B-4
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C
Safety and EMC Regulatory
Statements
Safety Information
!
Documentation reference symbol. If the product is marked with
this symbol, refer to the product documentation to get more
information about the product.
WARNING
A WARNING in the manual denotes a hazard that can cause
injury or death.
CAUTION
A CAUTION in the manual denotes a hazard that can damage
equipment.
Do not proceed beyond a WARNING or CAUTION notice until
you have understood the hazardous conditions and have taken
appropriate steps.
Grounding
These are safety class I products and have protective earthing terminals. There must be an uninterruptible safety earth ground from the
main power source to the product’s input wiring terminals, power
cord, or supplied power cord set. Whenever it is likely that the
protection has been impaired, disconnect the power cord until the
ground has been restored.
For LAN cable grounding:
■
If your LAN covers an area served by more than one power
distribution system, be sure their safety grounds are securely
interconnected.
C-1
honda.book Page 2 Wednesday, April 18, 2001 2:50 PM
Safety and EMC Regulatory Statements
Safety Information
■
LAN cables may occasionally be subject to hazardous transient voltages (such as lightning or disturbances in the
electrical utilities power grid). Handle exposed metal components of the network with caution.
Servicing
There are no user-serviceable parts inside these products. Any
servicing, adjustment, maintenance, or repair must be performed only
by service-trained personnel.
These products do not have a power switch; they are powered on
when the adapter’s power cord is plugged in.
C-2
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Safety and EMC Regulatory Statements
Informations concernant la sécurité
Informations concernant la sécurité
!
Symbole de référence à la documentation. Si le produit est
marqué de ce symbole, reportez-vous à la documentation du
produit afin d'obtenir des informations plus détaillées.
WARNING
Dans la documentation, un WARNING indique un danger
susceptible d'entraîner des dommages corporels ou la mort.
CAUTION
Un texte de mise en garde intitulé CAUTION indique un danger
susceptible de causer des dommages à l'équipement.
Ne continuez pas au-delà d'une rubrique WARNING ou
CAUTION avant d'avoir bien compris les conditions présentant
un danger et pris les mesures appropriées.
Cet appareil est un produit de classe I et possède une borne de mise à la terre.
La source d'alimentation principale doit être munie d'une prise de terre de
sécurité installée aux bornes du câblage d'entrée, sur le cordon d'alimentation ou le cordon de raccordement fourni avec le produit. Lorsque cette
protection semble avoir été endommagée, débrancher le cordon d'alimentation jusqu'à ce que la mise à la terre ait été réparée.
Mise à la terre du câble de réseau local:
■
si votre réseau local s'étend sur une zone desservie par plus d'un
système de distribution de puissance, assurez-vous que les prises de
terre de sécurité soient convenablement interconnectées.
■
Les câbles de réseaux locaux peuvent occasionnellement être
soumis à des surtensions transitoires dangereuses (telles que la
foudre ou des perturbations dans le réseau d'alimentation public).
Manipulez les composants métalliques du réseau avec précautions.
Aucune pièce contenue à l'intérieur de ce produit ne peut être réparée par
l'utilisateur. Tout dépannage, réglage, entretien ou réparation devra être
confié exclusivement à un personnel qualifié.
Cet appareil ne comporte pas de commutateur principal ; la mise sous tension
est effectuée par branchement du cordon d'alimentation.
C-3
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Safety and EMC Regulatory Statements
Hinweise zur Sicherheit
Hinweise zur Sicherheit
!
Symbol für Dokumentationsverweis. Wenn das Produkt mit
diesem Symbol markiert ist, schlagen Sie bitte in der Produktdokumentation nach, um mehr Informationen über das Produkt
zu erhalten.
WARNING
Eine WARNING in der Dokumentation symbolisiert eine Gefahr,
die Verletzungen oder sogar Todesfälle verursachen kann.
CAUTION
CAUTION in der Dokumentation symbolisiert eine Gefahr, die dis
Gerät beschädigen kann.
Fahren Sie nach dem Hinweis WARNING oder CAUTION erst
fort, nachdem Sie den Gefahrenzustand verstanden und die
entsprechenden Maßnahmen ergriffen haben.
Dies ist ein Gerät der Sicherheitsklasse I und verfügt über einen schützenden
Erdungsterminal. Der Betrieb des Geräts erfordert eine ununterbrochene
Sicherheitserdung von der Hauptstromquelle zu den Geräteingabeterminals,
den Netzkabeln oder dem mit Strom belieferten Netzkabelsatz voraus. Sobald
Grund zur Annahme besteht, daß der Schutz beeinträchtigt worden ist, das
Netzkabel aus der Wandsteckdose herausziehen, bis die Erdung wiederhergestellt ist.
Für LAN-Kabelerdung:
■
■
Wenn Ihr LAN ein Gebiet umfaßt, das von mehr als einem Stromverteilungssystem beliefert wird, müssen Sie sich vergewissern, daß
die Sicherheitserdungen fest untereinander verbunden sind.
LAN-Kabel können gelegentlich gefährlichen Übergangsspannungen ausgesetzt werden (beispielsweise durch Blitz oder Störungen
in dem Starkstromnetz des Elektrizitätswerks). Bei der
Handhabung exponierter Metallbestandteile des Netzwerkes Vorsicht walten lassen.
Dieses Gerät enthält innen keine durch den Benutzer zu wartenden Teile.
Wartungs-, Anpassungs-, Instandhaltungs- oder Reparaturarbeiten dürfen nur
von geschultem Bedienungspersonal durchgeführt werden.
Dieses Gerät hat keinen Netzschalter; es wird beim Anschließen des Netzkabels eingeschaltet.
C-4
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Safety and EMC Regulatory Statements
Considerazioni sulla sicurezza
Considerazioni sulla sicurezza
!
Simbolo di riferimento alla documentazione. Se il prodotto è
contrassegnato da questo simbolo, fare riferimento alla documentazione sul prodotto per ulteriori informazioni su di esso.
WARNING
La dicitura WARNINGdenota un pericolo che può causare
lesioni o morte.
CAUTION
La dicituraCAUTION denota un pericolo che può danneggiare le
attrezzature.
Non procedere oltre un avviso di WARNING o di CAUTIONprima
di aver compreso le condizioni di rischio e aver provveduto alle
misure del caso.
Questo prodotto è omologato nella classe di sicurezza I ed ha un terminale
protettivo di collegamento a terra. Dev'essere installato un collegamento a
terra di sicurezza, non interrompibile che vada dalla fonte d'alimentazione
principale ai terminali d'entrata, al cavo d'alimentazione oppure al set cavo
d'alimentazione fornito con il prodotto. Ogniqualvolta vi sia probabilità di
danneggiamento della protezione, disinserite il cavo d'alimentazione fino a
quando il collegaento a terra non sia stato ripristinato.
Per la messa a terra dei cavi LAN:
■
se la vostra LAN copre un'area servita da più di un sistema di
distribuzione elettrica, accertatevi che i collegamenti a terra di
sicurezza siano ben collegati fra loro;
■
i cavi LAN possono occasionalmente andare soggetti a pericolose
tensioni transitorie (ad esempio, provocate da lampi o disturbi nella
griglia d'alimentazione della società elettrica); siate cauti nel
toccare parti esposte in metallo della rete.
Nessun componente di questo prodotto può essere riparato dall'utente. Qualsiasi lavoro di riparazione, messa a punto, manutenzione o assistenza va
effettuato esclusivamente da personale specializzato.
Questo apparato non possiede un commutatore principale; si mette scotto
tensione all'inserirsi il cavo d'alimentazione.
C-5
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Safety and EMC Regulatory Statements
Consideraciones sobre seguridad
Consideraciones sobre seguridad
!
Símbolo de referencia a la documentación. Si el producto va
marcado con este símbolo, consultar la documentación del
producto a fin de obtener mayor información sobre el producto.
WARNING
Una WARNING en la documentación señala un riesgo que
podría resultar en lesiones o la muerte.
CAUTION
Una CAUTION en la documentación señala un riesgo que podría
resultar en averías al equipo.
No proseguir después de un símbolo de WARNING o CAUTION
hasta no haber entendido las condiciones peligrosas y haber
tomado las medidas apropiadas.
Este aparato se enmarca dentro de la clase I de seguridad y se encuentra
protegido por una borna de puesta a tierra. Es preciso que exista una puesta
a tierra continua desde la toma de alimentación eléctrica hasta las bornas de
los cables de entrada del aparato, el cable de alimentación o el juego de cable
de alimentación suministrado. Si existe la probabilidad de que la protección
a tierra haya sufrido desperfectos, desenchufar el cable de alimentación hasta
haberse subsanado el problema.
Puesta a tierra del cable de la red local (LAN):
■
Si la LAN abarca un área cuyo suministro eléctrico proviene de más
de una red de distribución de electricidad, cerciorarse de que las
puestas a tierra estén conectadas entre sí de modo seguro.
■
Es posible que los cables de la LAN se vean sometidos de vez en
cuando a voltajes momentáneos que entrañen peligro (rayos o
alteraciones en la red de energía eléctrica). Manejar con precaución
los componentes de metal de la LAN que estén al descubierto.
Este aparato no contiene pieza alguna susceptible de reparación por parte
del usuario. Todas las reparaciones, ajustes o servicio de mantenimiento debe
realizarlos solamente el técnico.
Este producto no tiene interruptor de potencia; se activa cuando se enchufa
el cable de alimentación.
C-6
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Safety and EMC Regulatory Statements
Safety Information (Japan)
Safety Information (Japan)
C-7
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Safety and EMC Regulatory Statements
Safety Information (China)
Safety Information (China)
C-8
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Safety and EMC Regulatory Statements
EMC Regulatory Statements
EMC Regulatory Statements
U.S.A.
FCC Class A
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
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 instruction manual, may cause interference to radio communications. Operation of this equipment in a residential area may cause
interference in which case the user will be required to correct the
interference at his own expense.
Canada
This product complies with Class A Canadian EMC requirements.
Australia/New Zealand
This product complies with Australia/New Zealand EMC
Class A requirements.
C-9
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Safety and EMC Regulatory Statements
EMC Regulatory Statements
Japan
VCCI Class A
Korea
Taiwan
C-10
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Safety and EMC Regulatory Statements
EMC Regulatory Statements
European Community
DECLARATION OF CONFORMITY
according to ISO/IEC Guide 22 and EN45014
Manufacturer's Name:
Hewlett-Packard Company
Manufacturer's Address:
8000 Foothills Blvd.
Roseville, CA 95747-5502
U.S.A.
declares that the product:
Product Names:
HP ProCurve Switch 408
Model Numbers:
J4097B
Accessories:
N/A
Conform to the following Product Specifications:
Safety:
EN60950:1992 +A1, A2, A3, A4, A11 / IEC 60950:1991 +A1, A2, A3, A4
EN60825-1:1993 / IEC 825-1:1993, Class 1
EMC:
CISPR 22:1997 / EN 55022:1998 Class A
CISPR 24:1997 / EN 55024:1998
IEC 61000-3-2:1995 / EN 61000-3-2:1995 +A1:1998 +A2:1998 - Harmonics
IEC 61000-3-3:1994 / EN 61000-3-3:1995 - Flicker
Supplementary Information:
The product herewith complies with the requirements of the Low Voltage
Directive 73/23/EEC and the EMC Directive 89/336/EEC and carries the CE
marking accordingly.
Tested with Hewlett-Packard Co. products only.
Roseville, February 22nd, 2001
Mike Avery,
Regulatory Engineering Manager
European Contact: Your local Hewlett-Packard Sales and Service Office or Hewlett-Packard GmbH,
Department TRE, Herrenberger Strasse 130, D-71034 Böblingen (FAX:+49-7031-14-3143).
C-11
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honda.book Page 1 Wednesday, April 18, 2001 2:50 PM
Index
Numerics
100 LED
description … 1-3
100Base-TX
connections, length
limitations … 2-5
ports, cables used with … 2-5
10Base-T
connections, length
limitations … 2-5
ports, cables used with … 2-5
A
address learning … 1-5
address table
automatic address learning … 1-5
filtering out traffic … 1-6
flooding traffic … 1-6
forwarding traffic … 1-6
moves and changes … 1-6
operation … 1-5
Auto-MDIX
see HP Auto-MDIX
cable diagrams
crossover cable … B-3
straight-through cable … B-2
cables
100Base-TX connections … 2-5
10Base-T connections … 2-5
connecting cables to switch
ports … 2-9
effects of non-standard
cables … 3-2
twisted-pair connector pinouts … B-1
cables, twisted pair
category 3, 4, 5 … B-2
crossover cable diagram … B-3
crossover cable pin-out … B-4
pin-outs … B-4
straight-through cable
diagram … B-2
straight-through cable pinout … B-4
connecting the switch to a power
source … 2-9
connector specifications … A-2
crossover cable
pin-out … B-4
B
back of switch
description … 1-4
power connector … 1-4
basic troubleshooting tips … 3-1
C
D
description
back of switch … 1-4
front of switch … 1-2
LEDs … 1-3
desktop switch
sample topology … 2-10
cabinet
mounting the switch in … 2-8
Index – 1
honda.book Page 2 Wednesday, April 18, 2001 2:50 PM
diagnostic tests … 3-5
checking the LEDs … 3-5
end-to-end connectivity … 3-6
testing the switch only … 3-5
testing twisted-pair cabling … 3-5
E
electrical specifications,
switch … A-1
EMC regulatory statements … C-9
environmental specifications,
switch … A-1
I
included parts … 2-1
installation
connecting the switch to a power
source … 2-9
mounting switch in rack or
cabinet … 2-8
mounting switch on a wall … 2-8
on a horizontal surface … 2-8
precautions … 2-3
summary … 2-2
L
F
Fault LED … 1-3
showing error conditions … 3-3
FDx LEDs
description … 1-3
features
Switch 408 … 1-5
filtering out traffic … 1-6
flooding traffic … 1-6
forwarding traffic … 1-6
front of switch
LEDs … 1-2
network ports … 1-2
full-duplex connections,
troubleshooting … 3-1
H
horizontal surface, mounting switch
on … 2-8
HP Auto-MDIX
affect on cable usage … 2-5, 2-12,
A-2–B-1
description … 1-5
Index – 2
LEDs
100
description … 1-3
behavior during self test … 2-7
checking during
troubleshooting … 3-5
descriptions of … 1-3
error indications … 3-3
Fault … 1-3
showing error conditions … 3-3
FDx
description … 1-3
Link/Act … 1-3
location on switch … 1-2
on switch … 1-3
Power … 1-3
behavior during self test … 2-7
length limitations
100Base-TX connections … 2-5
10Base-T connections … 2-5
Link/Act LEDs … 1-3
honda.book Page 3 Wednesday, April 18, 2001 2:50 PM
mounting the switch
in a rack or cabinet … 2-8
on a horizontal surface … 2-8
on a wall … 2-8
moves and changes
effect on address table … 1-6
power connector … 1-4
Power LED … 1-3
behavior during self test … 2-7
power source
connecting the switch to … 2-9
precautions
mounting the switch … 2-3
power requirements … 2-3
N
R
network cables
100Base-TX connections … 2-5
10Base-T connections … 2-5
twisted-pair connector pinouts … B-1
network devices
connecting to the switch … 2-9
network ports
connecting to … 2-9
location on switch … 1-2
standards compliance … A-2
types of … 1-2
non-standard network cables,
effects … 3-2
rack
mounting precautions … 2-3
mounting the switch in … 2-8
regulatory statements … C-9
resetting the switch
troubleshooting procedure … 3-5
M
P
parts, included with the switch … 2-1
physical specifications, switch … A-1
pin-outs
twisted-pair cables … B-1
port LEDs
100 … 1-3
FDx … 1-3
Link/Act … 1-3
ports
10/100Base-TX, location on
switch … 1-2
network connections … 2-9
S
safety specifications … A-2
segment switch
sample topology … 2-11
self test
LED behavior during … 2-7
specifications
connectors … A-2
electrical … A-1
environmental … A-1
physical … A-1
safety … A-2
straight-through cable
pin-out … B-4
summary of switch installation … 2-2
Index – 3
honda.book Page 4 Wednesday, April 18, 2001 2:50 PM
switch
connecting to a power
source … 2-9
electrical specifications … A-1
environmental
specifications … A-1
features … 1-5
front panel description … 1-2
included parts … 2-1
LED descriptions … 1-3
mounting in a rack or cabinet … 2-8
mounting on horizontal
surface … 2-8
physical specifications … A-1
switch operation
address table … 1-5
description … 1-5
filtering out traffic … 1-6
flooding traffic … 1-6
forwarding traffic … 1-6
network moves and changes … 1-6
verifying after installation … 2-6
T
testing
checking the LEDs … 3-5
diagnostic tests … 3-5
end-to-end communications … 3-6
switch operation … 3-5
twisted-pair cabling … 3-5
tips for troubleshooting … 3-1
topologies
effects of improper topology … 3-2
samples of … 2-10
Index – 4
troubleshooting
basic tips … 3-1
checking the LEDs … 3-5
common network problems … 3-1
diagnostic tests … 3-5
effects of improper topology … 3-2
effects of non-standard
cables … 3-2
fixed full-duplex connections … 3-1
testing end-to-end
communications … 3-6
testing the switch … 3-5
testing the twisted-pair
cables … 3-5
twisted-pair cable
crossover cable diagram … B-3
crossover cable pin-out … B-4
pin-outs … B-1, B-4
straight-through cable
diagram … B-2
straight-through cable pinout … B-4
testing … 3-5
Technical information in this document
is subject to change without notice.
©Copyright Hewlett-Packard Company
2001. All rights reserved. Reproduction,
adaptation, or translation without prior
written permission is prohibited except
as allowed under the copyright laws.
Printed in Taiwan 3/01
Manual Part Number
J4097-90101
*J4097-90101*
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