HP AdvanceStack Hub-8U J2610B Installation and operating manual

Installation and
Reference Guide
HP J2610B
HP AdvanceStack 10Base-T Hub-8U

HP Customer Support Services
How to get the latest software/agent firmware
You can download:
HP AdvanceStack 8U/16U SNMP firmware: j3133a.exe
from the HP BBS, HP FTP Library Service, CompuServe, and the World Wide
Web. After you download the file, extract the file by typing filename /x. For
example j3133a.exe /x
HP BBS
Set your modem to N-8-1, set speed up to 14400 bps, and with your telecom-
munication program (e.g., Windows Terminal) dial [phone] to get the
latest software for your HP networking product.
HP FTP Library Service
1) FTP to Internet IP Address - ftp-boi.external.hp.com
2) Log in as anonymous and press [Return] at the password prompt.
3) Enter bin to set the transfer type.
4) Enter cd /pub/networking/software
5) Enter get
filename to transfer the file to your computer and quit.
CompuServe
1) Login to CompuServe.
2) Enter go hpsys
3) Enter lib 7
4) Enter download
filename and then quit.
World Wide Web
http://www.hp.com/go/network_city
Select the“ Support” section, then “Software Downloads and Patches”.
Download the file you need and extract it by typing:
filename /x
Do you have questions about designing your expanding network? From this
web site, you can also download the Designing HP AdvanceStack Work-
groups Networks Guide which addresses capacity planning or dial 1-800-752-
0900 to receive a copy through the mail.
Perforate
Perforate
Perforate Perforate
Perforate
Obtain the latest agent firmware (j3133a.exe)
from:
HP FTP Library: ftp ftp-boi.external.hp.com
World Wide Web: http://www.hp.com/go/network_city
HP BBS [phone]
CompuServe go hpsys
lib 7
download j3133a.exe
✁

HP AdvanceStack Hub-8U
Installation and Reference Guide

© Copyright Hewlett-Packard Company 1996.
All Rights Reserved.
Reproduction, adaptation, or translation without prior
written permission is prohibited, except as allowed under
the copyright laws.
Publication Number
J2610-90101
Edition 1
February 1996
Applicable Product
HP J2610B
Trademark Credits
MS-DOS®and Microsoft®are U.S. registered trademarks
of Microsoft Corporation. Ethernet is a registered trade-
mark of Xerox Corporation.
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 warranty statement and the registration form in-
cluded with the product.
A copy of the specific warranty terms applicable to your
Hewlett-Packard product and replacement parts can be ob-
tained from your HP Sales and Service Office or authorized
dealer.
8000 Foothills Boulevard MS 5551
Roseville, California 95747-5551
http://www.hp.com/go/network_city

HP AdvanceStack Hub-8U
At A Glance
The HP J2610B AdvanceStack Hub-8U is a multiport repeater with eight
twisted-pair network ports. With this hub, you can connect computers and
other devices together in an unshielded twisted-pair cable network. This hub
is compliant with the IEEE 802.3 Type 10Base-T standard and supports both
802.3 and Ethernet networks.
iii

MDI/MDI-X switch
for port 1
Hub status LEDs Twisted-pair ports
twisted-pair
port LEDs
AUI/Xcvr port
LED
Front of the Hub
DC power
receptacle
cover plate over expansion slot for
HP AdvanceStack 8U/16U SNMP
Module
cover plate over slot for HP AUI
and Transceiver Modules
Back of the Hub
iv

Features
Network Connections Eight RJ-45 (twisted-pair) ports to connect to end nodes or other devices.
A Media Dependent Interface (MDI) switch for Port 1 which allows you to
connect either an end node (MDI-X position) or to cascade a hub (MDI position)
to the port, using a “straight-through” twisted-pair cable in both cases.
Upgradeable Design A management slot in the back of the hub enables you to install an HP
AdvanceStack 8U/16U SNMP Module. With the module, you can serially
connect an ASCII console to the hub to configure, monitor, and troubleshoot the
hub.
An AUI/Xcvr Slot in the back of the hub for several types of transceiver modules
including ThinLAN, AUI, twisted-pair, and fiber-optic. With the optional ThinLAN
transceiver, you can “hot-swap” a hub. Hot-swap means that removing a hub
connected to other hubs through the ThinLAN transceiver does not bring down
the network; you can upgrade or replace hubs in a stack with the network up
and running. The AUI Port Module with an external transceiver allows you to
connect to an Ethernet/IEEE 802.3 LAN. The twisted-pair module adds a ninth
RJ-45 port for a total of nine twisted-pair ports on the hub. The fiber-optic
module allows you to connect your hub to a fiber-optic backbone.
Modular, Easy-to-Use Design LEDs showing power, activity, collisions, and port status provide quick, easy-to-
read hub status information and troubleshooting assistance.
A small footprint that allows you to install the hub in a variety of ways, including
on a desk, under a desk, or on a wall.
Standards-Based Compatibility Compatible with the IEEE 802.3 Type 10Base-T standard to support both 802.3
and Ethernet networks.
v

Table of Contents
1Installing the Hub
Installation Summary . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Included Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1. Install add-in modules (optional). . . . . . . . . . . . . . . . . . 1-3
2. Verify the hub’s operation . . . . . . . . . . . . . . . . . . . . . . 1-5
3. Mount the hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Marking the Location . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Mounting the Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
4. Complete the network connections to the hub . . . . . . . . . . 1-9
Connecting Devices to the Hub . . . . . . . . . . . . . . . . . . . 1-9
Connecting Hubs Together . . . . . . . . . . . . . . . . . . . . . . 1-10
Connecting Hubs to Network Backbones . . . . . . . . . . . . . 1-12
5. Connect the hub to an ASCII console (optional) . . . . . . . . . 1-14
2Troubleshooting
Troubleshooting Approaches . . . . . . . . . . . . . . . . . . . . . . 2-2
Diagnosing with the LEDs . . . . . . . . . . . . . . . . . . . . . . . . 2-3
LED Pattern During Self-Test . . . . . . . . . . . . . . . . . . . . 2-3
LED Error Indications . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Installation Problems . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Incorrect Hardware Installation . . . . . . . . . . . . . . . . . . . 2-6
Cabling Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Unusual Network Activity . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Testing the Hub Only . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Testing Twisted-Pair Cabling . . . . . . . . . . . . . . . . . . . . . 2-8
Testing End-to-End Network Communications . . . . . . . . . . 2-9
Replacement Instructions . . . . . . . . . . . . . . . . . . . . . . . . 2-10
vii

Customer Support Services . . . . . . . . . . . . . . . . . . . . . . . 2-11
Hewlett-Packard FTP Library Service . . . . . . . . . . . . . . . 2-12
CompuServe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
HP FIRST Fax Retrieval Service . . . . . . . . . . . . . . . . . . . 2-14
HP Network Phone-In Support (NPS) . . . . . . . . . . . . . . . 2-14
3Hub Reference
Front of the Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Hub status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Port status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Back of the hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Management Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
AUI/Xcvr Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Hub Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Collision Detection . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Auto-Partitioning . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Link Beat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
ACables and Connectors
Recommended Cables . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Twisted-Pair Cable/Connector Pin-Outs . . . . . . . . . . . . . . . . A-3
Twisted-Pair Cable for Hub-to-Computer Network Connection . A-3
Twisted-Pair Cable Pin Assignments . . . . . . . . . . . . . . . . A-4
ThinLAN Cable Requirements . . . . . . . . . . . . . . . . . . . . . A-4
BSpecifications
Safety and Regulatory Statements
Index
viii

1
Installing the Hub
Installation Summary
1. Install Add-in Modules (optional)
2. Verify the Hub’s Operation
3. Mount the Hub
4. Complete the Network Connections to the Hub
5. Connect the Hub to an ASCII Console (optional)

This chapter describes how to install the HP AdvanceStack Hub-8U, verify
its operation, and connect it to a network, other hubs, computers, and/or
other devices.
Installation Summary
The basic hardware installation procedure for the HP AdvanceStack Hub-8U
is as follows:
1. Install the optional HP AdvanceStack 8U/16U SNMP Module and/or
one of the optional HP Transceiver Modules.
2. Verify the hub’s operation.
3. Mount the hub on a wall or under a tabletop.
4. Connect the hub to a network or other hubs, and connect
computer(s) and/or other device(s) to the hub’s ports.
5. (Optional) Connect the hub to the AdvanceStack 8U/16U SNMP
management console.
Included Parts
Each HP AdvanceStack Hub-8U has the following components shipped with
it:
HP AdvanceStack Hub-8U Installation and Reference Guide—this
manual (J2610-90101)
An ac power cord, one of the following:
Australia/New Zealand
Denmark
Europe
Japan
Switzerland
United Kingdom/Hong Kong
U.S./Canada
A power supply, part number
0950-3058
(8120-1369)
(8120-2956)
(8120-1689)
(8120-4753)
(8120-2104)
(8120-1351)
(8120-1378)
Installing the Hub
Installing the Hub
1-2

1. Install add-in modules (optional)
The HP AdvanceStack Hub-8U can be custom-configured by installing the
optional HP AdvanceStack 8U/16U SNMP Module and/or an HP Transceiver
Module. If you intend to install any of these optional modules, refer to the
documentation that was shipped with it.
It may be more convenient to install these optional modules before installing
the hub under a desk or other location. Inspect your installation site and
identify whether the hub’s module slots will be accessible.
The HP J3133A AdvanceStack 8U/16U SNMP Module enables you to connect
a PC to the hub to configure, monitor, and troubleshoot the hub.
Installing the Hub
Installing the Hub
1-3

The HP Transceiver Modules provide extended connectivity choices from
the hub to Ethernet networks.
The following optional transceiver modules provide these additional
connectivity options:
The HP AdvanceStack 8U/16U SNMP Module and HP Transceiver Modules
and their cabling configurations are described in their accompanying
documentation.
HP J2608A ThinLAN Transceiver Module
for 10Base-2 networks
HP J2606A Fiber-Optic Transceiver Module for
10Base-FL networks
HP J2607A Twisted-Pair Transceiver Module for
10Base-T networks
HP J2609A AUI Port Module for connecting a
standard IEEE 802.3 external transceiver to the hub
Installing the Hub
Installing the Hub
1-4

2. Verify the hub’s operation
Your hub uses power from an ac adapter. To provide power to the hub,
follow these steps:
1. Plug the power supply into the receptacle on the hub marked
“Power”.
Note If your installation requires a different ac adapter cable than the one
supplied with the hub, contact your HP-authorized LAN dealer or your
local HP sales office.
2. Plug the ac power cord into an ac power source. When installing
the Hub-8U, note that the ac outlet must be installed near the equipment
and should be easily accessible.
Note The hub does not have a power switch; it is powered on when the power
cord is plugged in.
Power receptacle
on the back of the
hub.
Example of an ac power cord
for a U.S. outlet. Plug the ac
power cord provided with your
hub into an ac power source.
power supply
Installing the Hub
Installing the Hub
1-5

3. Check the LEDs on the hub’s front panel.
When the hub is powered on, it performs a self-diagnostic test.
During the test, all LEDs are lit for a short time.
When the self-test completes successfully, the following events occur:
•the Power LED stays on
•the twisted-pair Port LEDs enter their normal operating state
•If an HP Transceiver module is installed, the AUI/Xcvr LED
stays lit
A Port LED stays on if link beat has been detected at the port. A Port
LED turns off if link beat is not detected. If you have an optional HP
AdvanceStack 8U/16U SNMP Module installed, the Port LEDs have
additional meanings. See the documentation accompanying the
module for more information. If all of the Port LEDs stay on and you
have not connected end nodes to these ports, the hub has failed its
self-test. See chapter 2, “Troubleshooting” for information about
diagnosing your hub.
4. After the hub has passed its self-test, you are ready to mount
the hub. Before mounting the hub, unplug it.
3. Mount the hub
The HP AdvanceStack Hub-8U can be placed on a desk or mounted on any
vertical or horizontal surface, for example, a wall or under a desk.
To locate the hub on a table or other horizontal surface, no special tools are
necessary. Be certain to pick a sturdy table in an uncluttered area. You may
want to secure the hub’s cables to the leg of the table to prevent people from
tripping over them.
Equipment Required
To mount the hub on a wall or under a desk, you will need the following
equipment:
two number 6 by half-inch or M3 x 12 mm pan head wood screws
(not included with the hub)
a Phillips (cross-head) screwdriver (not included with the hub)
Installing the Hub
Installing the Hub
1-6

Mounting
Precautions Before mounting the hub, follow these mounting precautions:
Plan the hub’s location and orientation relative to other devices and
equipment. Also consider the cabling that will be attached to the hub
and ports that will be used. In the front of the hub, leave 3 inches
(76 mm) of space for twisted-pair cables. In the back of the hub,
leave 3 inches (7 cm) of space for the ac power cord, the
AdvanceStack 8U/16U SNMP module, and a serial connector.
Ensure that the HP AdvanceStack hub(s) do not overload the power
circuits, wiring, and over-current protection. To determine the
possibility of overloading the supply circuits, add together the
ampere ratings from the nameplates of all your hubs (and other
equipment) installed on the same circuits and compare the total with
the rating limits for the supply circuits.
Do not install the HP AdvanceStack hub in an environment where
the operating ambient temperature might exceed 55°C (131°F).
Make sure the air flow around the sides of the hub is not restricted.
Marking the Location
Important A hub should be mounted only to a wall or wood surface that is
at least 1/2-inch (12.7 mm) plywood or its equivalent.
1. Using the illustration on the next page, mark the screw hole locations
on the mounting surface 4 13/16 inches (122.2 mm) apart. Make sure
you allow enough room to make the cable connections to the hub
and to be able to access the cables if they have to be moved.
2. Using a Phillips (cross-head) screwdriver, screw in the two pan head wood
screws leaving 1/8th inch (3 mm) between the screw head and the mounting
surface. (You may need to first pre-drill the surface with a 3/32-inch bit.)
Installing the Hub
Installing the Hub
1-7

Mounting the Hub
After the screws are in place, follow the steps below for mounting the hub
on a wall or under a desk.
1. For a vertical mount (such as a wall), place the bottom of the hub
against the screws. For a horizontal mount under a surface such as a
desk or table, turn the hub upside down and gently place the hub up
against the screws.
2. Slide the hub in either of the two diagonal directions to secure the
hub into place.
Note If you would rather use surface-mount brackets than the mounting holes
on the bottom of the hub, you can order J2610B surface-mount brackets by
calling [phone].
(Actual size of number 6
by half-inch or
M3 x 12 mm pan head
wood screw)
Installing the Hub
Installing the Hub
1-8