HP J3128A AdvanceStack 10Base-T Hub-8E User manual

Quick Setup Guide
for the HP AdvanceStack 10Base-T Hubs
Installation details are provided in the HP AdvanceStack 10Base-T Hubs Installation and
Reference Guide (5963-6554).
Install the Hub
1. Install optional add-in modules, for example an
HP Ethernet SNMP Module into the Expansion
Slot.
2. Plug the power cord into the hub’s receptacle
and into a properly grounded electrical outlet.
The hub does not have a power switch; it is
powered on when the power cord is plugged in.
HP Ethernet SNMP Module
Power receptacle on
the back of the hub
Thin LAN Extension Distributed Management
RS-232
In Out
85
Reset Exp Slot Security Activity
ThinLAN Console AUI/Xcvr Collision 10Base-T
Hub-12
6
7129 310 41112
Power
Fault
AdvanceStack HP J2600A
AUI/Xcvr
Slot
ThinLAN
network
port
chain ports RS-232
console port
optional AUI port module
installed in AUI/Xcvr slot
hub status LEDs
and reset button twisted-pair port LEDs
cable management
guide
power
connector
cover plate over
slot for HP Ethernet SNMP Module
redundant power
connector

3.
Check the LEDs on the hub’s front panel. When
the hub is powered on, it performs
a 3 to 60 second self-diagnostic test. When the
test completes, the following occurs:
– Power LED is on.
– RPS LED is on if a Redundant Power Supply is
connected (available at the end of 1995).
– Fault LED is off.
– If an SNMP Module is installed, the Exp Slot
LED is on.
If the Fault LED stays on, the hub has
encountered an unrecoverable error. See
chapter 4, “Troubleshooting”.
4. Before mounting, unplug the hub.
5. Install the hub into a rack or cabinet following
pages 1-5 through 1-10 (in the accompanying hub
manual) and power the hub back on.
Hub-to-End Node Connection
1. Push the RJ-45 plug into the RJ-45 jack until the
tab on the plug clicks into place.
2. Push the other end of the cable into the LAN
adapter in the end node such as a PC, printer, or
print server.
Status LEDs
BB
24681012 1357911 10Base-T
Hub-24
24681012
1357911
RJ-45 plug
unshielded twisted-pair
cable

Hub-to-Hub Connections
1. To connect the hub to another hub, push the
“crossover” cable RJ-45 plug into the RJ-45 jack
until the tab on the plug clicks into place.
2. Push the other end of the cable into the
connecting hub.
ThinLAN Backbone Connection
If you are connecting your hubs together on a
ThinLAN backbone, follow these steps:
1. Attach a ThinLAN cable section
to one side of a BNC “T”
connector.
2. Attach another ThinLAN cable
section or a 50-ohm terminator
to the other side of the “T”
connector.
3. Attach the “T” connector to the
ThinLAN port.
4. Cover the BNC connector
with an insulating cover.
Note: Each ThinLAN cable segment must be
terminated using a 50-ohm terminator at each end. In
the illustration above, a 50-ohm terminator would be
placed on one side of the BNC “T” connector if that
connector is at the end of the cable segment.
twisted-pair
“crossover” cable
BNC “T”
connector
ThinLAN cable
ThinLAN cable
50-ohm
terminator
OR

© 1995 Hewlett-Packard Company
HP Part Number: 5963-6555
Edition 1, July 1995
Printed in Singapore
*5963-6555*