Planet Palm-Top EH-501 User manual

Palm-Top
5/8-Port Ethernet Hub
EH-501
EH-801
Version 2.0

2
Trademarks
Copyright 1997 PLANET Technology Corp.
Contents subject to revision without prior notice.
PLANET is a registered trademark of PLANET
Technology Corporation. All other trademarks belong to
their respective companies or owners.
FCC Warning
This device has been tested and found to comply with the
limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide
reasonable protection against harmful 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
harmful interference to radio communications. Operation
of this equipment in a residential area is likely to cause
harmful interference in which case the user will be
required to correct the interference at his own expense.

Table of Contents
TABLE OF CONTENTS ...............................................1
CHAPTER 1 UNPACKING INFORMATION..............2
CHAPTER 2 GENERAL DESCRIPTION....................3
THE COVER PANEL OF EH-501/EH-801..........................3
THE REAR PANEL OF EH-501/EH-801 ............................4
PRODUCT CHARACTERISTICS..........................................5
IEEE 802.3...............................................................5
CHAPTER 3 INSTALLATION.....................................7
GETTING READY TO INSTALL THE EH-501/EH-801.........7
INSTALLING THE HUB.....................................................7
LINKING ETHERNET NODES TO THE HUB.........................8
INTERCONNECTING THE HUBS THROUGH STP PORTS......9
CONNECTION THROUGH THE BNC PORT.........................9
CHAPTER 4 TROUBLESHOOTING.........................11
CHAPTER 5 PRODUCT SPECIFICATION ..............13

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CHAPTER 1 UNPACKING
INFORMATION
Thank you for purchase PLANET EH-501/EH-801 5/8-port
Ethernet Palm-Top Hub. Before your installation, please read the
following for more detail about your installation.
EH-501/EH-801 is shipped in a box that contains the following
accessories. Please contact with your authorized dealer if any
thing is missed.
♦One EH-501/EH-801 Hub
♦This User’s Manual
♦AC Adapter (7.5VDC)
♦Screws (for wall mounting)

CHAPTER 2 GENERAL
DESCRIPTION
The EH-501/EH-801 hub is a standard Ethernet concentrator that
re-times and re-transmits the signal to each network station on
the LAN. Each Hub has six/nine modular RJ-45 STP ports for
attaching network devices (file server, bridge, and workstations)
or additional concentrators.
The Cover Panel of EH-501/EH-801
On the cover panel of this Hub, there are Power, Collision
LED(EH-501) and ports' Active LED indicators. For each RJ-45
STP port, there are one LED indicators - LINK and Receiving
LED. These LEDs help in diagnosing line troubles and indicate
the status of data transmission.
Pwr 1 2 3 4 5 6 7 8/UpLink
Link/Activity
EH-801
8-Port Workgroup Hub
Figure 2-1Cover panel of EH-801

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Link/Activity
EH-501
5-Port Workgroup Hub
Figure 2-2 Cover Panel of EH-501
The cover panel LEDs indicating the status as below:
LEDs Status Description
Power
Steady Green
Indicate Power ON ok
Collision Blink Red
Indicate collision detected in any
port
Link/Activity
Steady/Blink
Green Lit as UTP port connected Blinks as data receiving
The Rear Panel of EH-501/EH-801
As shown in Figure 2-2:
Figure 2-2 Rear Panel of EH-501/EH-801

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5/8 RJ-45 STP ports to connect with PC node, one RJ-45
STP port for easy hub-to-hub connection, one BNC Port
(EH-801) and one power port.
Product Characteristics
Each workstation connects to the EH-501/EH-801 hub in a
star configuration, which means each workstation connects
only to the central concentrator.
To attach a workstation to the concentrator, you can use
your own STP/UTP cable or the existing STP/UTP cable
installed in the building that is wired through the
telephone punch-down block to wire directly from the
workstation to the EH-501/EH-801 Hub.
The network cable that runs from the EH-501/EH-801 Hub
to the network station is called a cable segment. The
maximum number of cable segments between any two
stations is Five (5 segments) . The maximum distance for a
cable segment is 328 feet (100 meters).
The IEEE 802.3 standard-compliant EH-501/EH-801 Hub
supports both 10Base-2 (EH-801) and 10Base-T Ethernet
environments. The following table compares the two:
IEEE 802.3
Type 10BASE-2 10BASE-T
Topology Bus Star

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Maximum nodes per cable
segment 30 1
Cable types RG-58,
RG-58/A,
RG-58/U,
RG-58A/U
Shielded/
Unshielded
Twisted-
Pairs, AWG
22, 24, 26
Maximum length of a
cable segment 606 feet ( 185 m) 328 feet (100 m )
Maximum repeater sets 4

CHAPTER 3 INSTALLATION
Getting Ready to Install the EH-501/EH-801
Before installing the EH-501/EH-801 Hub, you should determine
the installation location.
♦Make sure that the cable distance between the concentrator
and the host device is not longer than 328 feet (10Base-T), or
606 feet(10Base-2) including all connection cables.
♦Check if you are using a external AC power adapter, 7.5 V DC
output, 400~700mA required.
Warning:
Please make sure you are using a power adapter of the right
type; otherwise, the warranty will be invalidated.
♦Make sure there is enough room to service the Hub and to
make cable connections to the rear panel.
♦Avoid direct sunlight, heat vents and warm air exhaust from
other equipment.
Installing the Hub
You can place the Hub on a desk or mount it on the wall.
The wall-mounting design provides space-saving and flexibility
in cable routing and expansion. Fix the two screws on the wall,

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as Figure 3-1. Hook up the two front rubber pads on the Hub
bottom to the crews.
Figure 3-1 Mounting the hub on the wall
Follow the steps below to attach the power adapter to the Hub:
1.Insert the jack end of the power adapter into the power port of
EH-501/EH-801.
2.Insert the plug end of the power adapter into a grounded power
outlet.
Now, the Power LED indicator on the cover panel of the Hub
should be lit. If this LED is still off, check the cable connection,
or refer to Chapter 4, "Troubleshooting".
If you want to power off the Hub, unplug the power adapter from
the grounded power outlet.
Linking Ethernet Nodes to the Hub
You can connect a workstation or file server to the EH-501/EH-
801 through the STP port.
1.Insert one end of the STP/UTP cable to any STP port of the
Hub.