Reproduction, adaptation, or translation without prior
written permission is prohibited, except as allowed under
the copyright laws.
Publication Number
5990-3059
November 2002
Applicable Products
HP Procurve Switch 10/100-TX GL Module (J4862B)
HP Procurve Switch 100/1000-T GL Module (J4863A)
HP Procurve Switch Gigabit Transceivers GL Module
(J4864A)
HP Procurve Switch 100-FX GL Module (J4892A)
HP Procurve Switch mini-GBIC GL Module (J4893A)
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. Hewlett-Packard 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
See the Customer Support/Warranty booklet included with
the product.
A copy of the specific warranty terms applicable to your
Hewlett-Packard product and replacement parts can be
obtained from your HP sales and service office or
HP-authorized reseller.
Hewlett-Packard Company
8000 Foothills Boulevard, m/s 5552
Roseville, California 95747-5552
http://www.hp.com/go/hpprocurve
Page 5
Moray.book Page iii Wednesday, December 18, 2002 3:00 PM
* These modules require switch software version G.05.02 or later to be installed in the switch.
23456
23456
Continued on the next page.
6 mini-GBIC slots for installing any
of the supported HP Procurve
mini-GBICs**.
gl
module
1
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Moray.book Page 2 Wednesday, December 18, 2002 3:00 PM
Features
Module Description
HP Procurve Switch
100-FX MTRJ connectors for 100 Mbps
GL Module (J4892A)
††
This module requires switch software version G.07.01 or later to be installed in the switch.
††
hp procurve
100-FX MTRJ
gl module
J4892A
Link|Mode
3145678910
2
123456789101112
100Base-FX MTRJ Ports
12
11
12 100-FX ports with MT-RJ
networking over multimode
fiber-optic cable.
gl
module
Contact your HP-authorized networking products reseller or your HP representative for information on availability of other modules, transceivers, and
mini-GBICs. You can also visit the HP networking products Web site at
http://www.hp.com/go/hpprocurve to get more information.
Features
Link and Mode LEDs
1
7
(one pair per port)
2
8
3
9
Link|Mode
4
10
5
11
6
12
Link|Mode
13
19
14
20
15
21
16
22
retaining screw
17
23
18
24
181
2
hp procurve
10/100-TX
gl module
J4862B
7
10/100-TX Ports (1-24)all ports are HP Auto-MDIX
network ports
gl
121924
module
Example: The HP Procurve 24-Port 10/100-TX GL Module
The HP Procurve Switch GL Modules have the following features:
■ auto-enabled ports—the ports are all configured to be ready for network
operation as soon as a viable network cable is connected.
■ auto-configuration—a default configuration is applied to the module
when the switch is powered on and the module passes self test; this default
configuration works well for most network installations.
■ LEDs that provide information on the link status, network activity,
connection bandwidth, and communication mode (half or full duplex).
Page 9
Moray.book Page 3 Wednesday, December 18, 2002 3:00 PM
■ “hot swap modules” operation—you can add a module or replace a
module without having to shut down the switch (changing the module
type in a given slot does require a switch reset).
■ “hot swap transceivers and mini-GBICs” operation—you can add, replace,
or change the type of any of the transceivers and mini-GBICs that you use
in the Gigabit Transceiver GL Module and mini-GBIC GL Module, without
having to first remove the module, and without having to shut down the
switch.
■ the ports on the 10/100-TX GL Module have the HP Auto-MDIX feature,
and the ports on the 100/1000-T GL Module have the IEEE 802.3ab Auto
MDI/MDI-X feature. These features operate the same way and allow you
to use either “straight-through” or “crossover” twisted-pair cables for all
the twisted-pair network connections. Please see the note on “Automatic
Cable Sensing” on
Features
page 11.
■ standards adherence:
• the 10/100-TX GL Module is compatible with the IEEE 802.3
10Base-T and IEEE 802.3u 100Base-TX standards
• the 100/1000-T GL Module is compatible with the IEEE 802.3ab
1000Base-T and IEEE 802.3u 100Base-TX standards
• the ports on the transceivers that are installed in the Gigabit Transceiver GL Module are compatible with their appropriate standards.
See the Installation Guide the comes with the transceivers.
• the ports on the Gigabit-SX and Gigabit-LX mini-GBICs that are
installed in the mini-GBIC GL Module are compatible with the IEEE
802.3z Gigabit-SX and Gigabit-LX standards respectively.
• the ports on the 100-FX MTRJ GL Module are compatible with the
IEEE 802.3u 100-FX standard.
3
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Installing the GL Modules
Installing the GL Modules
Overview
You can install any of the GL modules into any of the HP Procurve switches
that have a compatible module slot. As of this printing, those are the HP
Procurve Series 4100GL Switches:
■ 4108GL (p/n J4865A)
■ 4108GL Bundle (p/n J4861A)
■ 4104GL (p/n J4887A)
■ 4148GL (p/n J4888A) -- a 4104GL bundle
You can install the modules into the switch either with the switch powered on
or off. The following procedures assume the switch is powered on.
1. Install the modules in a switch slot (see page 5).
If you have installed any modules into slots that were previously occupied
by a different type module, the status LED for the slot will be flashing
indicating that you must reset the switch (see
page 15).
2. If you are using the Gigabit Transceiver GL Module or the mini-GBIC GL
Module, you can install the transceivers or mini-GBICs in the appropriate
module before or after installing that module into the switch.
Not e The HP Procurve transceivers and mini-GBICs can be “hot swapped”. That is,
they can be installed or removed after the GL Module is installed in the switch
and receiving power.
Please see the Installation Guide that came with the transceivers for more
information on installing the transceivers. The information for using the
mini-GBICs is included in this manual (see page 7).
3. Verify that the modules are installed correctly (see page 8).
4. Connect the network cabling (see page 9).
5. Optionally, customize the configuration for the modules’ ports (unless the
default port configuration is satisfactory for your network application see page 13).
Not e If necessary, you can “hot-swap” one module for another; that is, replace one
module with another while the switch is still powered on, without interrupting
the operation of the rest of the switch ports. For more information, see
4
page 14.
Page 11
Moray.book Page 5 Wednesday, December 18, 2002 3:00 PM
Installing the Module in an Unused Slot
Installation Precautions:
■ Static electricity can severely damage the electronic components on the modules. When
handling and installing the modules in your switch, follow these procedures to avoid damage
from static electricity:
• Handle the module by its bulkhead or edges and avoid touching the components and the
circuitry on the board.
• When installing the module, equalize any static charge difference between your body and
the switch by wearing a grounding wrist strap and attaching it to the switch’s metal body,
or by frequently touching the switch’s metal body.
■ The HP Procurve Switch GL Modules have “low-force”, high-performance connectors.
High insertion forces are not necessary to install the modules, and should not be
used.
Installing the GL Modules
■Make sure that you fully insert the modules. That is, press the module into the slot until
the bulkhead on the module is contacting or is very close to contacting the front face of the
switch chassis.
■ Once the module is fully inserted, make sure that you screw in the two retaining screws to
secure the module in place.
■ For safe operation, proper switch cooling, and reduction of electromagnetic emissions, ensure
that a slot cover is installed on any unused module slot. For safety, no more than one slot should
be uncovered at a time when the switch is powered on.
Installation Procedures:
1. Use a Torx T-10 or flat-bladed screwdriver to unscrew the screws in the
cover plate over the slot you want to use, and remove the cover. Store the
cover plate for possible future use.
2. Hold the module by its bulkhead—taking care not to touch the metal
connectors or components on the board.
3. As shown in the illustrations on the next page, insert the module into the
slot guides and slide it into the slot until it stops. Then press near the two
screws on the module bulkhead to seat the module connector into the
switch backplane. The module bulkhead should be in contact with or very
close to contact with the back face of the switch.
Note: The HP Procurve Switch GL Modules have “low-force”, highperformance connectors. High insertion forces are not necessary
to install the modules and should not be used.
5
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Moray.book Page 6 Wednesday, December 18, 2002 3:00 PM
Installing the GL Modules
1. Insert module into the
guides and slide it in until it is
fully inserted.
“Low-force” connector.
High insertion force is not
needed and should not be
used.
The module is fully inserted when
the module bulkhead is contacting,
or very close to contacting
the face of the switch.
For best results, push
simultaneously near both
screws.
2. Then tighten the retaining
screws on the modul e until they are
secure, but do not overtighten
them.
6
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Installing or Removing the mini-GBICs
You can install or remove the mini-GBIC from the mini-GBIC GL Module
without having to power off the switch. Use only HP Procurve mini-GBICs.
Caution The HP Procurve mini-GBICs are Class 1 laser devices. Avoid direct eye
exposure to the beam coming from the transmit port.
Installing the mini-GBICs:
Hold the mini-GBIC by its sides and gently insert it into any of the slots in the
module until the mini-GBIC clicks into place.
Installing the GL Modules
Removing the mini-GBICs:
You should disconnect the network cable from the mini-GBIC before removing
it from the module.
Depending on when you purchased your HP Procurve mini-GBICs, it may have
either of three different release mechanisms: a plastic tab on the bottom of
the mini-GBIC, a wire bail, or a plastic collar around the mini-GBIC.
To remove the mini-GBICs that have the plastic tab or plastic collar, push the
plastic tab or collar toward the switch until you see the mini-GBIC release
from the switch (you can see it move outward slightly), and then pull it from
the slot.
To remove the mini-GBICs that have the wire bail, lower the bail until it is
approximately horizontal, and then using the bail, pull the mini-GBIC from the
slot.
7
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Installing the GL Modules
Verifying the Module is Installed Correctly
Observe the Module Status LED for the slot in which the module is being
installed, and the Self Test and Fault LEDs on the switch to verify that the
module is installed properly.
Fault LED
hp procurve
switch 4104gl
J4887A
J4862B
Module Status LEDs
Status
ModulesLED Mode Select
Max
FDx
ActDCBA21
A
J4862B
Console
Self Test LED
ClearReset
Self
Test
Fan
Power
Module Link and Mode
LEDs
When the module is installed properly and the switch is powered on, or
the module is installed when the switch already has power, the module
undergoes a self test that takes a few seconds. You can use the LEDs to
determine that the module is installed properly and has passed the self
test, as described in the “LED Behavior” table below.
LED Behavior
LED Display for a Properly Installed Module
8
Module Status (for the slot in which you are installing the module) Goes ON as soon
as the module is installed and the switch is powered on, and stays
ON steadily.
Self Test ON briefly while the module is being tested, then OFF.
Note: If the switch was powered off while the module was installed,
when the switch is powered on, the Self Test LED will stay ON for
the duration of the self test of the entire switch.
Fault OFF
Link and Mode (on For a module that is installed when the switch is already powered
the modules) on (hotswap), all the Link and Mode LEDs on the module go ON for
approximately 15 to 20 seconds, then OFF for 5 to 10 seconds
depending on the module. T hen, the Self Test LED on the switch goes
OFF.
If the module is already installed when the switch is powered on or
reset, the process described above occurs approximately 30
seconds after the power on or reset, during which the switch is
being tested.
Page 15
Moray.book Page 9 Wednesday, December 18, 2002 3:00 PM
Connecting the Network Cables
Connect the appropriate network cables to the module's ports as shown in
the table below and on the next two pages. More detailed cable information
is included under “Cables” on
The cabling that you would use for the HP Procurve Gigabit Transceivers that
are installed in the Gigabit Transceiver GL Module depends on the types of
transceivers you are using. Please see the manual that came with those
transceivers and the information in this manual on
the appropriate cabling.
Detailed information on cabling, especially the fiber-optic cabling used with
the Gigabit Transceivers and the mini-GBICs, can be found on the HP Procurve
web site, http://www.hp.com/go/procurve. Click on Technical Support and
then faqs, and then select the product type.
Installing the GL Modules
page 22.
page 22 for information on
Supported Cable Types
Module Cable Type Maximum Length
10/100-TX GL Module
10 Mbps operation:
category 3, 4, or 5,
18293104115126
7
hp procurve
10/100-TX
gl module
J4862B
7
10/100-TX Ports (1-24)all ports are HP Auto-MDIX
Link|Mode
Link|Mode
12 1924
191320
14
16
15
22
21
18
17
24
23
181
100-ohm differential
twisted-pair cable
100 Mbps operation:
gl
module
category 5, 100-ohm
differential twisted-pair
twisted-pair cable
with RJ-45 connector
RJ-45 ports with
“HP Auto-MDIX”
cable
Notes:
•The RJ-45 ports on this module have the HP Auto-MDIX feature. In the module’s default configuration, Auto, either
a straight-through or crossover cable can be used to connect the module to any other 100Base-TX or 10Base-T
device. See the Note on
page 11.
• Since the 10Base-T operation is through the 10/100Base-TX ports, if you ever want to upgrade the ports to
100Base-TX, it would be best to cable the ports initially with category 5, or better, cable.
recommended, although
category 5 cable may also
work.
Note: In the module’s default configuration, Auto, either a straight-through or crossover cable can be used to connect
the module to either another Gigabit device or to a 100Base-T device. See the Note on Automatic Cable Sensing on
page 11.
mini-GBIC GL Module
1
Link
Link
1
hp procurve
mini-GBIC
gl module
Mode
Mode
J4893A
fiber-optic cable
with
LC connector
23456
23456
Gigabit-SX operation:
multimode fiber-optic
cables that are fitted with
LC connectors
gl
module
Gigabit-LX operation:
A
B
Gigabit-LX or Gigabit-SX
mini-GBICs
single-mode fiber-optic
cables fitted with LC
connectors.
multimode fiber-optic
220 meters to 550
meters, depending on
the cable used. See
“Fiber-Optic Cables”
on page 23 for more
information.
• single-mode cable:
10 kilometers
• multimode cable:
550 meters
cables may also be
used—see “Fiber-Optic
Cables” on page 23.
Notes:
Gigabit-LX – If multimode cable is used, a mode conditioning patch cord may be needed — see “Mode Conditioning
Patch Cord” on page 24 for more information.
Gigabit-LH – Between the transmit and receive ends of the cable, at least 5dB of attenuation is required for a reliable
connection. This is equivalent to 20Km of the fiber-optic cable. For distances less than 20Km, you must add attenuators
to bring the total attenuation to at least 5dB. Most cable vendors carry attenuators.
10
Gigabit-LH operation:
the same single-mode
cables as for Gigabit-LX.
Continued on the next page.
70 kilometers
Page 17
Moray.book Page 11 Wednesday, December 18, 2002 3:00 PM
Module Cable Type Maximum Length
Installing the GL Modules
100-FX MTRJ GL Module
multimode fiber-optic • full-duplex
cables that are fitted with
Link|Mode
231456789101112
123456789101112
hp procurve
100-FX MTRJ
gl module
J4892A
100Base-FX MTRJ Ports
100-FX port with
MT-RJ connector
multimode fiber-optic cable
with MT-RJ connector
MT-RJ connectors.
gl
module
Not e Automatic Cable Sensing on Twisted Pair Ports:
When the ports for the 10/100-TX GL Module and the 100/1000-T GL Module
are in their default configuration,
whether the ports operate as MDI or MDI-X, depending on the cable type and
the connected device’s operation. As a result, you can use either “straightthrough” or “crossover” twisted-pair cable for all network connections to
these modules.
Auto, both modules automatically negotiate
connections:
2 kilometers
• half-duplex
connections:
412 meters
On the 10/100-TX GL Module, this feature is identified as HP Auto-MDIX; on
the 100/1000-T GL Module, it is identified as Auto MDI/MDI-X and it is part
of the IEEE 802.3ab standard. Both features operate the same.
Operation of this feature depends on the port configurations being kept at
Auto.
If the configuration is changed to one of the available fixed options though
(for example, 100-Full Duplex), the port operates as an MDI-X port. In that
case, to connect the module to another switch or hub, use a crossover cable;
to connect to an end node, use a straight-through cable.
11
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Installing the GL Modules
Verifying the Network Connections Are Working
Check the port LEDs for the newly-installed module to ensure that the port(s)
connected in the preceding step are operating correctly. Each port on the
switch modules has Link and Mode LEDs near it as shown in the next
illustration.
Example Link and Mode LEDs
Link and Mode LEDs
1
7
1
hp procurve
10/100-TX
gl module
J4862B
■ The Link LED will be lit for each port that is connected properly to an
2
8
3
9
4
10
-
5
11
-
6
12
Link|Mode
Link|Mode
13
19
active network device.
If the Link LED does not go on when an active network cable is connected
to the port, there may be something wrong with the cable, the cable
connectors, or the device at the other end of the cable. See the troubleshooting information on
■ If the switch Mode is set to display activity (the
page 16.
mode indicator LED
is lit), then the Mode LED for each port that is transmitting and/or
receiving packets will flicker when traffic is detected on the port.
■ If the Mode is set to display full duplex (the
mode indicator LED is
lit), then the Mode LED will be lit for each port that is operating in full
duplex.
■ If the Mode is set to display maximum link speed operation (the
indicator LED is lit), then the Mode LED will be lit for each port that is
operating at its maximum possible link speed. For gigabit-capable ports,
that speed would be 1000 Mbps (Gigabit); for 10/100 ports, that speed
would be 100 Mbps.
12
mode
Page 19
Moray.book Page 13 Wednesday, December 18, 2002 3:00 PM
Customizing the Port Configuration
If the slot in which you installed the module was empty the last time the switch
was either rebooted or reset (or the power to the switch was cycled), then the
module will use preconfigured default parameter values that will work for
most networks.
The default port configurations for the modules are:
■ Ports Enabled: Yes
■ Mode:
• 10/100-TX GL Module: Auto — The port auto negotiates speed (10
or 100 Mbps), communication mode (half or full duplex), and MDI or
MDI-X port operation. Note: if you configure the port to one of the
fixed 100 Mbps modes, the port will then operate only as an MDI-X
port.
• 100/1000-T GL Module: Auto — The port auto negotiates speed
(1000 or 100 Mbps), communication mode (half or full duplex), and
MDI or MDI-X port operation. Note: if you configure the port to one
of the fixed 100 Mbps modes, the port will then operate only as an
MDI-X port.
• Gigabit-SX and Gigabit-LX ports in Gigabit Transceiver GL
Module and mini-GBIC GL Module: Auto — The ports always
operate at 1000 Mbps and full duplex. The setting is Auto for best link
establishment with other devices.
• Gigabit-LH ports in the mini-GBIC GL Module: Auto — The port
always operates at 1000 Mbps and full duplex. The setting is Auto for
best link establishment with other devices.
• 100-FX MTRJ GL Module: 100FDX — The port operates at 100 Mbps
and full-duplex communication mode.
Installing the GL Modules
■ Flow Control: Disabled
■ Advanced Features: Spanning Tree, Trunking, VLANs, Security, etc.: all
Disabled
If necessary, configure the port(s) in the module by using the switch console
or the web browser interface. For more information, see the Management and Configuration Guide shipped on the documentation CD that came with the
switch, and the online Help provided in the console and web browser interfaces.
If the default port configuration listed above is acceptable for your network,
then skip this process.
13
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Replacing or Removing a Module
Replacing or Removing a Module
Follow these procedures to replace one module with another, or to remove a
module without replacing it:
1. Remove any network cables from the ports on the module.
2. On the module you want to remove from the switch, unscrew the retaining
screws enough to disconnect them from the threaded holes in the switch.
unscrew the retaining screws
18293104115126
7
hp procurve
10/100-TX
gl module
J4862B
7
10/100-TX Ports (1-24)all ports are HP Auto -MDIX
Link|Mode
Link|Mode
12 1924
191320
14
16
15
22
21
18
17
24
23
181
gl
module
3. Grab the screws and pull the module out from the slot. It may help to brace
your hands against the face of the switch and “lever” the module out from
the switch slot.
4. Do one of the following:
• If you will be installing another module in the slot, go to “Installing
the Module in an Unused Slot” on
page 5 and begin with step 2.
• If you will not install another module in the slot (that is, leave it
empty), then re-install a slot cover plate over the empty slot opening.
Caution For proper cooling and reduction of electromagnetic emissions, ensure that
a slot cover is installed on any unused slot.
5. Reset the switch, as described under “Resetting the Switch” on page 15,
if you are exchanging one type of module with a different type of module
in the same slot (for example, replacing a 10/100-TX GL Module with a
100/1000-T GL Module).
If you are replacing a module with another one of the same type in the
same slot, it is not necessary to reset the switch. The current configuration
for ports in that slot will apply to the new module.
14
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Moray.book Page 15 Wednesday, December 18, 2002 3:00 PM
Resetting the Switch
Reasons for Resetting the Switch
Generally, you only need to reset the switch when it needs to recognize a
change in its hardware or software (console) configuration. Some
circumstances in which you will need to reset the switch are:
■ Installing a module in a slot that was previously occupied by a different
type of module—for example, installing a 100/1000-T GL Module in a slot
that was previously used for a 10/100-TX GL Module—the switch must be
reset after the new module is installed so the switch processor can
properly initialize and configure the new module type.
Resetting the Switch
Not e When a module is exchanged for a different type, until the switch is reset
the module will not operate, the Module Status LED for the slot will
continue to flash, and all the LEDs on the module will stay on continuously.
■ Changing certain switch configuration parameters through the console
interface. (In this case, the console provides indications when the switch
must be reset for the configuration change to be activated.)
You do not need to reset the switch when:
■ Installing a module in a previously unused slot.
■ Replacing a module with the same type of module.
Methods of Resetting the Switch
You can reset the switch by any of these methods:
■ pressing the Reset button on the front of the switch
■ power cycling the switch (if both power supplies are being used, you will
have to disconnect both power cords)
■issuing the reboot system command from the switch console CLI, or
selecting the Reset or Reboot option from the switch console menu, web
browser interface, or HP TopTools for Hubs & Switches
15
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Troubleshooting
Troubleshooting
The primary tools for troubleshooting the switch modules are the LEDs on the
front of the switch and on the modules. Refer to “LED Behavior” on
Also, refer to the Installation and Getting Started Guide for more detailed
troubleshooting information.
The following tables describe switch and module LED displays that indicate
that the module or connections to the ports on the module are not operating
correctly.
Switch and Module LED Error Indicators:
page 8.
Fault Self Test Module Status Port Link Diagnostic Tips
Flashing
Flashing
Flashing
†
The flashing behavior is an on/off cycle once every 1.6 seconds, approximately.
††
The fast flashing behavior is an on/off cycle once every 0.8 seconds, approximately.
†
†
Off Off Flashing
†
Off Off Off Fast Flashing
Off Off On Off with cable
Flashing
Flashing
Flashing
†
†
†
Flashing
Flashing
Flashing
†
†
On briefly, then
†
†
Never On
Off
Off
Flashing
➊
➋
➌
†
††
➍
➎
➏
connected
Diagnostic Tips:
See the tables on the next three pages to diagnose the LED error indicators in
the previous table.
16
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Moray.book Page 17 Wednesday, December 18, 2002 3:00 PM
Tip
Number
Problem Solution
Troubleshooting
➊
➋
The module installed in
the slot that
corresponds to the
letter that is flashing is
an invalid module.
The module installed in
the slot that
corresponds to the
letter that is flashing
has experienced a self
test or initialization
fault.
The fact that the Link and Mode LEDs never are lit on the module indicates that
it is a Procurve Switch XL module and should not be used in your GL switch.
Make sure that you have installed a GL module in the slot. HP
Procurve XL modules will fit in the slot, but they are not compatible
with your Procurve GL switch. Check to make sure that the module
has a Blue “gl module” symbol on it.
Remove the module from the switch and replace it with an GL module, or recover
the slot with the cover plate. You can remove and replace the module without
having to power down the switch. Call your HP-authorized LAN dealer, or use
the electronic support services from HP to get information on supported Switch
GL modules.
The modules are all tested whenever the switch is powered on, or reset (through
the Reset button on the switch, or the Reboot or Reset options in the console or
web browser interface), and when they are hot swapped (installed when the
switch is powered on).
Since the Link and Mode LEDs on the module were lit at least briefly, that
indicates that the module did receive power from the switch, but the subsequent
download process failed. Either the module is faulty or it is a new module type
that is not yet supported by the software on the switch.
As Hewlett-Packard introduces new modules for your HP Procurve Switch GL,
you may have to update the switch with new software that supports the new
module. See the module descriptions at the beginning of this manual to find out
which version of the switch software is needed to support the module.
First verify that the switch has a version of software that supports the module
that is indicating the fault. If necessary, download the new software and retest
the module. The latest switch so ftware can be downloaded from the HP Procurve
web site at http://www.hp.com/go/hpprocurve, or software that supports the
module is on a CD-ROM that is included with your module.
If you have the correct software version installed in the switch, try removing and
reinstalling the module. You can do this without having to power down the switch.
When the module is reinstalled, it will be retested automatically.
If the fault indication reoccurs, the module may have failed. Remove the module
from the switch and replace it with another module, or recover the slot with the
cover plate. 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.
17
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Troubleshooting
Tip
Number
Problem Solution
➌
➍
A module was installed
in the slot that is a
different type than the
previously installed
module, and the switc h
has not yet been reset.
The network port for
which the Link LED is
flashing has
experienced a self test
or initialization failure.
When you “hot swap” modules in the switch slot, if you install a different module
type than the one that was previously installed in the slot, you must reset the
switch so the switch processor can properly initialize and configure the new
module type. The flashing LED informs you that this change of module types has
occurred. The module will not work properly until the switch is reset, as indicated
by all the module’s LEDs staying on until the switch is reset.
See “Resetting the Switch” on page 15.
During the module self test (described in tip number 2), each network port is also
tested. If the port self test fails, the individual port is not usable, but the rest of
the ports on the module, which have passed their self test, will continue to
operate normally.
If the error has occurred on a mini-GBIC that you have installed in the mini-GBIC
GL Module, make sure that it is one of the supported mini-GBICs. The HP
Procurve mini-GBICs that are supported, as of the printing of this manual, are
listed on page 1. Use only the supported HP Procurve mini-GBICs. If it is a
supported mini-GBIC, it may have failed. Try removing and reinstalling the miniGBIC and it will be tested again. If the fault indication reoccurs, the mini-GBIC is
faulty and must be replaced.
If the error has occurred on an transceiver that you have installed in the Gigabit
Transceiver GL Module, the transceiver itself may be faulty. Try removing and
reinstalling the transceiver and it will be tested again. If the fault indication
reoccurs, the transceiver is faulty and must be replaced.
If the error has occurred a twisted-pair port or 100-FX port on one of the other
modules, try reinstalling the module. If the port fault indication reoccurs, and you
need to be able to use the port, you will have to replace the module. In the mean
time, all the other module ports will operate normally.
➎
The network port for
which the Link LED is
flashing has been
disabled because port
security has been
configured on the
switch and a security
violation has been
detected on the port.
18
For the Port Security feature, you can configure the switch so that whenever a
security violation is detected on a port, the switch will disable the port. When a
port is disabled by this feature, the port Link LED will be continuously flashed at
the fast rate of 0.8 seconds per cycle. The flashing continues until you clear the
security violation through the switch console. In the console, you can view the
identity of the connected device that committed the security violation.
Once the security violation is cleared, you must re-enable the port through the
console.
For more information on the Port Security feature, see the Management and Configuration Guide that is on the documentation CD-ROM that came with your
switch.
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Tip
Number
Problem Solution
Troubleshooting
➏
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 securely connected.
• Verify the connected device and switch are both powered on and operating
correctly.
• Verify that you have used the correct cable type for the connection. See
“Cables” on
page 22 for the correct cable specifications.
– For any of the twisted-pair connections, in the default configuration (Auto),
either a “straight-through” or a “crossover” cable can be used and the
switch will automatically adjust its operation. See the “Automatic Cable
Sensing” description on page 11 for more information.
Note: If the module configuration is changed to one of the fixed
configuration options though (for example, 100-Full Duplex), then the
port operates as MDI-X only and the correct type of cable must be used.
In general, for connecting to an end node (MDI port), use “straightthrough” cable; for connecting to MDI-X ports on hubs or other
switches, use “crossover” cable.
– For a 1000 Mbps connection on twisted-pair cable, verify that the network
cabling complies with the IEEE 802.3ab standard. The cable should be
installed according to the ANSI/TIA/EIA-568-A-5 specifications. Cable
testing should comply with the stated limitations for Attenuation, Near-End
Crosstalk, Far-End Crosstalk, Equal-Level Far-End Crosstalk (ELFEXT),
Multiple Disturber ELFEXT, and Return Loss.
The cable verification must include all patch cables from any end devices,
including the switch, to any patch panels in the cabling path.
– for fiber-optic connections, verify that the transmit port on the switch is
connected to the receive port on the connected device, and the switch
receive port is connected to the transmit port on the connected device. Also
verify that the cables comply with the specifications shown on
page 23.
• Verify that the port has not been disabled through a switch configuration
change.
You can use the console interface, or, if you have configured an IP address on
the switch, use the web browser interface, or HP TopTools for Hubs &
Switches network management software to determine the state of the port
and re-enable the port if necessary.
• Verify that the switch port configuration matches the configuration of the
connected device. For example, if the switch port is configured as “Auto”, the
port on the connected device also MUST be configured as “Auto”. If the
configurations don’t match, the results could be a very unreliable connection
or no link at all.
• If the other procedures don’t resolve the problem, try using a different port or
a different cable.
19
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Customer Support Services
Customer Support Services
If you are having any trouble with your module or 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/procurve also provides up-to-date support information. Additionally, your HP-authorized network reseller can also provide you
with assistance, both with services that they offer and with services offered
by HP.
Specifications
Environmental
Operating Non-Operating
Temperature:
Relative humidity:
(non-condensing)
Maximum altitude:
Lasers
The following products are Class 1 Laser Products.
Laser Klasse 1:
■ The Gigabit-SX Transceiver, and the Gigabit-LX Transceiver, both of which
can be installed in the Gigabit Transceiver GL Module
■ The Gigabit-SX, Gigabit-LX, and Gigabit-LH mini-GBICs, which can be
installed in the mini-GBIC GL Module
The transceivers, and mini-GBICs comply with IEC 825-2: 1993.
0C to 55C (32F to 131F) -40C to 70C (-40F to 158F)
15% to 95% at 40C (104F) 15% to 90% at 65C (149F)
4.6 Km (15,000 ft) 4.6 Km (15,000 ft)
20
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Connectors
Twisted-Pair
■10/100Base-TX RJ-45 – On the 10/100-TX GL Module.
They are compatible with the IEEE 802.3 10Base-T and 802.3u 100BaseTX standards and accept the 10 Mbps or 100 Mbps cables listed below.
■100/1000Base-T RJ-45 – On the 100/1000-T GL Module and the
100/1000-T Transceiver.
They are compatible with the IEEE 802.3u 100Base-TX and IEEE 802.3ab
1000Base-T standards, and accept the 100 Mbps or 1000 Mbps cables listed
on the next page.
Fiber-Optic
Specifications
■ 100Base-FX SC – On the 100-FX SC Transceiver.
■ 100Base-FX MTRJ – On the 100-FX GL Module.
Both 100Base-FX connectors transmit at 1300 nm wavelength, and are
compatible with the IEEE 802.3u 100Base-FX standard. They accept the
multimode fiber-optic cables for 100Base-FX described on
■ Gigabit-SX SC – On the Gigabit-SX Transceiver.
■ Gigabit-SX LC – On the Gigabit-SX mini-GBIC.
page 23.
Both Gigabit-SX connectors transmit at 850 nm wavelength, and are
compatible with the IEEE 802.3z Gigabit-SX standard. They accept the
low metal content, multimode fiber-optic cables for Gigabit-SX described
page 23.
on
■ Gigabit-LX SC – On the Gigabit-LX Transceiver.
■ Gigabit-LX LC – On the Gigabit-LX mini-GBIC.
Both Gigabit-LX connectors transmit at 1300 nm wavelength, and are
compatible with the IEEE 802.3z Gigabit-LX standard. They accept the
low metal content, single-mode or multimode fiber-optic cables for
Gigabit-LX described on
■Gigabit-LH LC – On the Gigabit-LH mini-GBIC.
page 23.
Transmits at 1300 nm wavelength, and accepts the low metal content,
single-mode fiber-optic cables for Gigabit-LH described on page 23.
21
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with IEEE 802.3u 100Base-TX specifications, fitted with RJ-45
connectors
1000 Mbps Operation Category 5E 100-ohm differential UTP or STP cable, complying
with IEEE 802.3ab 1000Base-T specifications, fitted with RJ-45
connectors
(please see “Note on 1000Base-T Ca ble Requirements”, below)
Note on 1000Base-T Cable Requirements. The Category 5 networking
cables that work for 100Base-TX connections should also work for
1000Base-T, but for the most robust connections you should use cabling that
complies with the Category 5E specifications, as described in Addendum 5 to
the TIA-568-A standard (ANSI/TIA/EIA-568-A-5).
Because of the increased speed provided by 1000Base-T (Gigabit-T), network
cable quality is more important than for either 10Base-T or 100Base-TX.
Cabling plants being used to carry 1000Base-T networking must comply with
the IEEE 802.3ab standards. In particular, the cabling must pass tests for
Attenuation, Near-End Crosstalk (NEXT), and Far-End Crosstalk (FEXT).
Additionally, unlike the cables for 100Base-TX, the 1000Base-T cables must
pass tests for Equal-Level Far-End Crosstalk (ELFEXT), Multiple Disturber
ELFEXT, and Return Loss.
100 meters
100 meters
100 meters
When testing your cabling, be sure to include the patch cables that connect
the switch and other end devices to the patch panels on your site. The patch
cables are frequently overlooked when testing cable and they must also
comply with the cabling standards.
22
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Fiber-Optic
Port Type Cable Specifications Connector Type Maximum Length
Specifications
100Base-FX 62.5/125 m or 50/125 m (core/cladding)
diameter, graded-index, low metal content,
multimode fiber-optic cables, complying with the
ITU-T G.651 and ISO/IEC 793-2 Type A1b or A1a
respectively.
Gigabit-SX 62.5/125 m or 50/125 m (core/cladding)
diameter, graded-index, low metal content,
multimode fiber-optic cables, complying with the
ITU-T G.651 and ISO/IEC 793-2 Type A1b or A1a
respectively.
metal content, single mode fiber-optic cables,
complying with the ITU-T G.652 and ISO/IEC
793-2 Type B1 standards.
OR
the multimode fiber-optic cables listed for
Gigabit-SX.
Note: To use multimode cables for Gigabit-LX, a mode conditioning patch cord may be needed — see
“Mode Conditioning Patch Cord for Gigabit-LX” on page 24 for more information.
Note: Between the transmit and receive ends of the cable, at least 5dB of attenuation is required for a
reliable connection. This is equivalent to 20Km of the fiber-optic cable. For distances less than 20Km,
you must add attenuators to bring the total attenuation to at least 5dB. Most cable vendors carry
attenuators.
23
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Mode Conditioning Patch Cord for Gigabit-LX
Mode Conditioning Patch Cord for
Gigabit-LX
The following information applies to installations in which multimode
fiber-optic cables are connected to a Gigabit-LX port.
Unlike Gigabit-SX, which connects to only multimode fiber-optic cabling,
Gigabit-LX can use either single-mode or multimode cable. Multimode cable
has a design characteristic called “Differential Mode Delay”, which requires
that the transmission signals be “conditioned” to compensate for the cable
design and thus prevent resulting transmission errors. Since Gigabit-SX is
designed to operate only with multimode cable, Gigabit-SX transceivers can
provide that transmission conditioning internally.
Gigabit-LX transceivers and mini-GBICs, since they are designed to operate
with both single-mode and multimode cable, do not provide the transmission
conditioning internally. Thus, under certain circumstances, depending on the
cable used and the lengths of the cable runs, an external Mode Conditioning Patch Cord may need to be installed between the Gigabit-LX transmitting
device and the multimode network cable to provide the transmission conditioning.
If you experience a high number of transmission errors on the Gigabit-LX
ports, usually CRC or FCS errors, you may need to install one of these patch
cords between the Gigabit-LX port in your switch and your multimode fiberoptic network cabling, and between the Gigabit-LX transmission device and
the network cabling at the other end of the multimode fiber-optic cable run.
A patch cord must be installed at both ends.
The patch cord consists of a short length of single-mode fiber cable coupled
to graded-index multimode fiber cable on the transmit side, and only multimode cable on the receive side. The section of single-mode fiber is connected
in such a way that it minimizes the effects of the differential mode delay in the
multimode cable.
Not e Most of the time, if you are using good quality graded-index multimode fiber
cable that adheres to the standards listed on page 9, there should not be a need
to use mode conditioning patch cords in your network. This is especially true
if the fiber runs in your network are relatively short.
If you are using single-mode fiber-optic cabling in your network, there is no
need to use mode conditioning patch cords. Connect the single-mode network
cable directly to the Gigabit-LX transceiver or Gigabit-LX mini-GBIC.
24
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Installing the Patch Cord
As shown in the illustration below, connect the patch cord to the Gigabit-LX
Transceiver or Gigabit-LX mini-GBIC with the section of single-mode fiber
plugged in to the Tx (transmit) port. Then, connect the other end of the patch
cord to your network cabling patch panel, or directly to the network multimode fiber.
If you connect the patch cord directly to the network cabling, you may need
to install a female-to-female adapter to allow the cables to be connected
together.
Mode Conditioning Patch Cord for Gigabit-LX
Gigabit-LX port
to network
multimode
cabling
the multimode cable in the patch cord
must match the char acteristics of your
network cable
Mode Conditioning
Patch Cord
single-mode section plugs into Tx
port on Gigabit-LX Transceiver or
Gigabit-LX mini-GBIC
Make sure you purchase a patch cord that has SC connectors on the end that
connects to the Gigabit-LX Transceiver, or LC connectors on the end that
connects to the Gigabit-LX mini-GBIC, and has multimode fibers that match
the characteristics of the multimode fiber in your network.
Recommended Patch Cords
Hewlett-Packard maintains a list of recommended Mode Conditioning Patch
Cords that have been tested and verified to operate correctly with the HP
Procurve Gigabit-LX Transceiver and HP Procurve Gigabit-LX LC
mini-GBIC.
The list is on the HP Procurve web site, http://www.hp.com/go/hpprocurve, in
the Technical Support, FAQ section.
25
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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.
Japan
VCCI Class A
26
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Korea
Taiwan
EMC Regulatory Statements
European Community Declaration of Conformity
These product is designed for operation with the HP Procurve Series 4100GL
Switches. Please see the Declarations of Conformity included in the Installa-
tion and Getting Started Guide for those switches.
27
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Technical information in this document
is subject to change without notice.
�Copyright Hewlett-Packard Company,
2001, 2002. All rights reserved.
Reproduction, adaptation, or translation
without prior written permission is
prohibited except as allowed under the
copyright laws.
Product of Singapore
November 2002
Manual part number
5990-3059
*5990-3059*
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