HP ProCurve J4862A User manual

www.hp.com/go/hpprocurve
hp procurve switch
gl modules
installation guide

Moray.book Page i Wednesday, December 18, 2002 3:00 PM
HP Procurve Switch GL Modules
Installation Guide

Moray.book Page ii Wednesday, December 18, 2002 3:00 PM
© Copyright 2001, 2002 Hewlett-Packard Company
All Rights Reserved
Reproduction, adaptation, or translation without prior
written permission is prohibited, except as allowed under
the copyright laws.
PublicationNumber
5990-3059
November 2002
Applicable Products
HP ProcurveSwitch 10/100-TX GL Module (J4862B)
HP ProcurveSwitch 100/1000-TGL Module (J4863A)
HP ProcurveSwitch Gigabit Transceivers GL Module
(J4864A)
HP Procurve Switch 100-FX GL Module(J4892A)
HP ProcurveSwitch 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 liablefor errors contained herein or for incidental or
consequential damages in connection with the furnishing,
performance, or useof 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, California95747-5552
http://www.hp.com/go/hpprocurve

Moray.book Page iii Wednesday, December 18,2002 3:00 PM
Contents
HP Procurve SwitchGL Modules Installation Guide
Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installing the GL Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Overview .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installing the Module in anUnused Slot . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation Precautions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation Procedures: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installing or Removing themini-GBICs. . . . . . . . . . . . . . . . . . . . . . . . . . 7
Verifyingthe Module is Installed Correctly . . . . . . . . . . . . . . . . . . . . . . . 8
Connectingthe Network Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Verifyingthe Network Connections Are Working . . . . . . . . . . . . . . . . 12
Customizingthe Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Replacing or Removing a Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Resetting the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Reasons for Resetting the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Methods of Resetting the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Switch and Module LEDError Indicators: . . . . . . . . . . . . . . . . . . . . . . . 16
Diagnostic Tips: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Customer Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Lasers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Twisted-Pair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Fiber-Optic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Twisted-Pair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Fiber-Optic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
iii

Moray.book Page iv Wednesday, December 18, 2002 3:00 PM
Mode Conditioning Patch Cord for Gigabit-LX . . . . . . . . . . . . . . . . . . 24
Installing thePatch Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Recommended Patch Cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
EMC Regulatory Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
iv

Moray.book Page 1 Wednesday, December 18, 2002 3:00 PM
Descriptions
HP Procurve Switch GL Modules
For theHP Procurve Series 4100GL Switches
Descriptions. The HP Procurve Switch GL Modules are components that you
can add toan HP Procurve GL switch to provide a variety of network connec-
tivity options. The following modules are available as of this printing:
Module Description
HP Procurve Switch 24 twisted-pair ports with RJ-45
10/100-TX GL Module connectors for 10 Mbps or 100
(J4862B)* Mbps operation over 100-ohm
unshielded(UTP) or shielded (STP)
twisted-pair cable --all ports have
the HP Auto-MDIXfeature.
HP Procurve Switch 6twisted-pair portswith RJ-45
100/1000-T GL Module connectors for 1000 Mbps
(J4863A) (Gigabit) or 100 Mbps operation
over Category 5 or better 100-ohm
UTP or STP cable (category 5E
recommended for Gigabit) -- all
ports have the IEEE 802.3ab Auto
MDI/MDI-X feature.
HP Procurve Switch
Gigabit Transceiver
GL Module (J4864A)
3 transceiver slots for installing
any of the supported HP Procurve
Transceivers†.
†
Supported HP Procurve Transceivers (as of this printing):
• 100-FX Transceiver (J4853A) • 100/1000-T Transceiver (J4834A)
• Gigabit Stacking Transceiver (part of the HP Procurve Switch
Gigabit Stacking Kit -- J4116A)
• Gigabit-SX Transceiver (J4131Aor J4131B)
• Gigabit-LX Transceiver (J4132A)
HP Procurve Switch
mini-GBIC GL Module
(J4893A)*
6mini-GBIC slots for installing any
of the supported HP Procurve
mini-GBICs**.
** Supported HPProcurve mini-GBICs (as of this printing):
• Gigabit-SX LC mini-GBIC (J4858A) • Gigabit-LX LC mini-GBIC (J4859A) • Gigabit-LH LC mini-GBIC (J4860A)
* These modulesrequire switch software versionG.05.02 or later to be installed in the switch.
Continued on the next page.
1
24
18
23
17
22
16
21
15
19
13
20
14
7
Link|Mode
Link|Mode
1
8
2
9
3
10
4
11
5
12
6
712 19 24
181
hp procurve
gl module
10/100-TX
J4862B
10/100-TX Ports (1-24 all ports are HP Auto-MDIX
gl
module
654321
hp procurve
gl module
100/1000-T
J4863A Mode
Link
123456
100/1000Base-T Ports
gl
module
Remove network cable before removing or installing transceiver
1
Mode
Link
1
Mode
Link
gl
module
hp procur ve
mini-GBIC
gl module
J4893A
23456
23456

Moray.book Page 2 Wednesday, December 18, 2002 3:00 PM
Features
Module Description
HP Procurve Switch 12 100-FX portswith MT-RJ
100-FX MTRJ connectors for 100 Mbps
GL Module (J4892A)†† networking over multimode
fiber-optic cable.
†† This module requires switch software versionG.07.01 or later to be installed in the switch.
Contactyour HP-authorized networking products reseller or yourHP repre-
sentative 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
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 soonas 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).
2
231 4 5 6 7 8 9 10 11 12
Link|Mode
100Base-FX MTRJ Ports
123456789101112
hp procur ve
100 -FX MT J
gl module
J4892A
gl
module
24
18
23
17
22
16
21
15
19
13
20
14
7
Link|Mode
Link|Mode
1
8
2
9
3
10
4
11
5
12
6
712 19 24
181
hp procurve
gl module
10/100-TX
J4862B
10/100-TX Ports (1-24 all ports are HP Auto-MDIX
gl
module
retaining screw
network ports
Link and Mode LEDs
(one pair per port)

Moray.book Page 3 Wednesday, December 18, 2002 3:00 PM
Features
■ “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-TXGL 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-Xfeature. These featuresoperatethe 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 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 andIEEE 802.3u 100Base-TX standards
• the ports on the transceivers that are installed inthe Gigabit Trans-
ceiver 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-GBICsthat 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

Moray.book Page 4 Wednesday, December 18, 2002 3:00 PM
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 Series4100GL 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 ina switch slot (see page 5).
If you have installed any modules intoslots 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 youare 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 “hotswapped”. That is,
they can be installed or removed after the GL Module is installed in the switch
and receiving power.
Please see the Installation Guidethat 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 themodules are installed correctly (see page 8).
4. Connect the network cabling (seepage 9).
5. Optionally, customize the configuration for the modules’ ports (unless the
defaultport 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 page 14.
4

Moray.book Page 5 Wednesday, December 18, 2002 3:00 PM
Installing the GL Modules
Installing the Module in an Unused Slot
InstallationPrecautions:
■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 byits bulkhead or edges and avoid touching the components and the
circuitry on the board.
• When installing the module, equalize anystatic charge difference between your body and
theswitch by wearing a grounding wrist strap and attaching itto the switch’s metal body,
or by frequently touching the switch’s metal body.
■The HPProcurve Switch GL Modules have “low-force”, high-performance connectors.
High insertion forces are not necessary to installthe modules, and should not be
used.
■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.
InstallationProcedures:
1. Use a Torx T-10 or flat-bladed screwdriver to unscrew the screws inthe
cover plate over the slot you want to use, and remove the cover. Store the
cover platefor possiblefuture 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”, high-
performance connectors. Highinsertion forces are not necessary
to install the modules and should not be used.
5

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.
For best results, push
simultaneously near both
screws.
The module is fully inserted when
the module bulkhead is contacting,
or veryclose tocontacting
the face of the switch.
6
“Low-force” connector.
High insertion force isnot
needed and should notbe
used.
2. Then tighten the retaining
screws on the module until they are
secure, but do not overtighten
them.

Moray.book Page 7 Wednesday, December 18, 2002 3:00 PM
Installing the GL Modules
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-GBICby its sides and gently insert it into any of the slots in the
module until the mini-GBIC clicks into place.
Removingthemini-GBICs:
You should disconnect the network cable from the mini-GBICbefore removing
it from the module.
Dependingon 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, ora plastic collar around the mini-GBIC.
To remove the mini-GBICs that have the plastic tab or plastic collar, push the
plastictab or collar toward theswitch untilyousee the mini-GBIC release
from the switch (you can see it move outward slightly), and then pull it from
theslot.
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

Moray.book Page 8 Wednesday, December 18, 2002 3:00 PM
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 installedproperly.
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
Module Status (forthe slot in which you are installing the module) GoesON as soon
as the module isinstalled 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. Then, the Self Test LEDon 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.
8
Power
Fan
Status
Self
Test
ClearReset
Console
Modules LED Mode Select
hp procurve
switch 4104gl
Max
J4862B J4862B
FDx ActDCBA21
A
J4887A
Self Test LED Module Status LEDs
Fault LED
Module Link and Mode
LEDs

Moray.book Page 9 Wednesday, December 18, 2002 3:00 PM
Installing the GL Modules
Connecting the Network Cables
Connect the appropriate network cables to the module'sports as shown in
the table below and on the next two pages. More detailed cable information
is included under “Cables” on page 22.
The cabling that you would use for the HPProcurve 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 page 22 for information on
theappropriate cabling.
Detailed information on cabling, especially the fiber-optic cablingused with
the Gigabit Transceivers and the mini-GBICs, can be found on the HP Procurve
website, http://www.hp.com/go/procurve. Click on TechnicalSupport and
then faqs, and then select the product type.
Supported Cable Types
Module Cable Type Maximum Length
10/100-TX GL Module 10 Mbps operation:
category 3, 4, or 5,
100-ohm differential
100 meters
(recommended)
twisted-pair cable
100 Mbps operation:
category 5, 100-ohm
differential twisted-pair
cable
100 meters
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 cablecan 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.
Continued on the next page.
9
24
18
23
17
22
16
21
15
19
13
20
14
7
Link|Mode
Link|Mode
1
8
2
9
3
10
4
11
5
12
6
712 19 24
181
hp procurve
gl module
10/100-TX
J4862B
10/100-TX Ports (1-24 all ports are HP Auto-MDIX
gl
module
twisted-pair cable
with RJ-45 connector
RJ-45 ports with
“HP Auto-MDIX”

10
Installing the GL Modules
Module Cable Type Maximum Length
100/1000-T GL Module 100 Mbps operation:
category 5, 100-ohm
differential twisted-pair
cable
100 meters
1000 Mbps (Gigabit)
operation: category 5E,
100-ohm cable is
recommended, although
category 5 cable may also
work.
100 meters
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 Gigabit-SX operation:
multimode fiber-optic
cables that are fitted with
LC connectors
220 meters to 550
meters, depending on
the cable used. See
“Fiber-Optic Cables”
on page 23 for more
information.
Gigabit-LX operation:
single-mode fiber-optic
cables fitted with LC
connectors.
multimode fiber-optic
cables may also be
used—see “Fiber-Optic
Cables” on page 23.
•single-mode cable:
10 kilometers
•multimode cable:
550 meters
Gigabit-LH operation:
the same single-mode
cables as for Gigabit-LX.
70 kilometers
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.
Continued on the next page.
654321
hp procurve
gl module
100/1000-T
J4863A Mode
Link
12 3 4 5 6
100/1000Base-T Ports
gl
module
twisted-pair
cable with
RJ-45 connector
RJ-45 ports with
“Auto MDI/MDI-X”
1
Mode
Link
1
Mode
Link
gl
module
hp procurve
mini-GBIC
gl module
J4893A
23456
23456
A
B
fiber-optic cable
with
LC connector
Gigabit-LX or Gigabit-SX
mini-GBICs

Moray.book Page 11 Wednesday, December 18, 2002 3:00 PM
Installing the GL Modules
Module Cable Type Maximum Length
100-FX MTRJ GL Module multimodefiber-optic • full-duplex
cables that are fitted with connections:
MT-RJ connectors. 2 kilometers
• half-duplex
connections:
412 meters
Not e Automatic Cable Sensing on Twisted Pair Ports:
When the ports forthe 10/100-TX GL Module and the 100/1000-T GLModule
are in their default configuration, Auto, both modules automatically negotiate
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 “straight-
through” or “crossover” twisted-pair cable for all network connections to
these modules.
On the 10/100-TX GLModule, 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, toconnect the module toanother switch or hub, use a crossovercable;
to connect to an end node, use a straight-through cable.
11
2 3
14 5 6 7 8 9 10 11 12
Link|Mode
100Base-FX MTRJ Ports
123456789101112
hp procurve
100-FX MT J
gl module
J4892A
gl
module
multimode fiber-optic cable
with MT-RJ connector
100-FX port with
MT-RJ connector

Moray.book Page 12 Wednesday, December 18, 2002 3:00 PM
Installing the GL Modules
Verifying the Network Connections Are Working
Check the portLEDs 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 Linkand Mode LEDs near it as shown in the next
illustration.
Example Link and Mode LEDs
■ The Link LED will belit for each port that is connected properly to an
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. Seethe trouble-
shooting information on page 16.
■If the switch Mode is set to display activity (the

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

mode
indicator LED is lit), then the ModeLED 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
19
13
7
Link|Mode
Link|Mode
1
8
2
9
3
10
4
11
5
12
6
712 19
1
hp procurve
gl module
10/100-TX
J4862B
10/100
-
TX Ports (1
-
24
Link and Mode LEDs

Moray.book Page 13 Wednesday, December 18, 2002 3:00 PM
Installing the GL Modules
Customizing the PortConfiguration
If the slot in which you installed the module was empty the last time the switch
was either rebooted or reset (orthe 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 forthe modules are:
■Ports Enabled: Yes
■Mode:
• 10/100-TX GL Module: Auto — The port auto negotiatesspeed (10
or 100Mbps), communication mode (half or full duplex), and MDI or
MDI-X portoperation. Note:if you configure the port to one ofthe
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 asan
MDI-X port.
• Gigabit-SX and Gigabit-LXports in Gigabit TransceiverGL
Module and mini-GBIC GL Module: Auto —The portsalways
operate at 1000 Mbps and full duplex. The setting is Auto for best link
establishment with other devices.
• Gigabit-LH ports inthemini-GBIC GL Module: Auto — The port
always operates at 1000 Mbps andfull 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.
■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 moreinformation,see the Management and
Configuration Guide shipped on the documentationCD that came with the
switch, and the online Help provided in the console and web browser inter-
faces.
If the default port configuration listed above is acceptable for your network,
then skip this process.
13

Moray.book Page 14 Wednesday, December 18, 2002 3:00 PM
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 youwant to remove fromthe switch, unscrew the retaining
screws enough to disconnect them from the threaded holes in the switch.
3. Grab the screws and pull the module out fromthe 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 beinstalling another module in the slot, go to “Installing
the Module in an UnusedSlot” on page 5 and begin with step 2.
• If you will not install another module in the slot (that is, leave it
empty), thenre-install a slot cover plate over the empty slot opening.
Caution For proper cooling and reduction of electromagnetic emissions, ensure that
aslot cover is installed onany 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 amodule with another one of the same type in the
same slot, it is not necessaryto reset the switch. The currentconfiguration
for ports in that slot will apply to the newmodule.
14
24
18
23
17
22
16
21
15
19
13
20
14
7
Link|Mode
Link|Mode
1
8
2
9
3
10
4
11
5
12
6
712 19 24
181
hp procurve
gl module
10/100-TX
J4862B
10/100-TX Ports (1-24 all ports are HP Auto-MDIX
gl
module
unscrew the retaining screws