Transition Networks LAN MASTER 33022.B Bedienungsanleitung

LANMaster™ T8

(E-TBT-HB-0804)

33022.B

For assistance in installing, using, or

maintaining the TRANSITION Networks

LANMaster T8 8-Port Ethernet™

Repeater Hub, contact TRANSITION

Networks Technical Support at:

(800) 260-1312

or contact your local distributor.

LANMaster™ T8

8-Port Ethernet™ Hub

LANMASTER T8 8-PORT HUB

SPECIFICATIONS

Standards

IEEE 802.3

Physical

Dimensions

137 mm x 137 mm x 25 mm

Power

Power Supply Adapter

AC Input (47-63 hertz):

PN Requirement Location

3532 120 volts, 60 hertz, 28 watts USA/Canada/Mexico

3535 230 volts, 50 hertz, 28 watts Europe

3534 100 volts, 50-60 hertz, 28 watts Japan

3533 240 volts, 50 hertz, 28 watts United Kingdom

3536 240 volts, 50 hertz, 28 watts Australia

DC Output:

12 volts at 800 mA maximum.

Environment

Temperature: 0-50°C (32° to 122° F )

Humidity 10-90%, non condensing

Altitude 0-10,000 feet

Warranty

Lifetime

LANMaster™ T8 8-Port Ethernet™ Repeater Hub 20

CAUTION: RJ connectors are NOT INTENDED FOR

CONNECTION TO THE PUBLIC TELEPHONE

NETWORK. Failure to observe this caution could result

in damage to the public telephone network.

Compliance Information

UL Listed

C-UL Listed (Canada)

CISPR/EN55022 Class A

FCC Regulations

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 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 the user’s own expense.

Canadian Regulations

This digital apparatus does not exceed the Class A limits for radio noise for

digital apparatus set out on the radio interference regulations of the Canadian

Department of Communications.

European Regulations

Warning

This is a Class A product. In a domestic environment this product may cause

radio interference in which case the user may be required to take adequate

measures.

form or by any means – graphic, electronic, or mechanical – without written

permission from TRANSITION Networks.

Trademark Notice

All registered trademarks and trademarks are the property of their respective

owners.

Der Anschluss dieses Gerätes an ein öffentlickes

Telekommunikationsnetz in den EG-Mitgliedstaaten verstösst gegen die

jeweligen einzelstaatlichen Gesetze zur Anwendung der Richtlinie

91/263/EWG zur Angleichung der Rechtsvorschriften der

Mitgliedstaaten über Telekommunikationsendeinrichtungen

einschliesslich der gegenseitigen Anerkennung ihrer Konformität.

10BASE-2 Cable Specifications

The physical characteristics of the 10BASE-2 cable must meet or exceed IEEE 802.3

10BASE-2 specifications.

Cable Characteristics:

Cable type: Stranded Coaxial RG58 (ThinNet)

Impedance: 50 Ω@ 10 MHz

Mutual Capacitance: 24 pF/ft ±20% @ 10 MHz

Maximum Cable Length:185 meters (610 feet)

Maximum number network connections:30

Minimum distance between connections: 0.5 meters (1.6 feet)

Terminate 10BASE-2 cable at one end using a 50 ohm terminator and at the

other end using a 50 ohm terminator grounded to earth ground.

10BASE-T Cable and Connector Specifications

The physical characteristics of the 10BASE-T cable must meet or exceed IEEE

802.3 10BASE-T specifications.

10BASE-T Cable Characteristics:

Category 3 wire or better is required; category 5 wire is recommended. Either

shielded twisted pair (STP) or unshielded twisted pair (UTP) can be used. DO

NOT USE FLAT OR SILVER SATIN WIRE.

Category 3:

Gauge 24 to 22 AWG

Attenuation 28 dB/1000’ @ 10 MHz

Differential Characteristic Impedance 100 Ω±10% @ 10 MHz

Category 5:

Gauge 24 to 22 AWG

Attenuation 20 dB/1000’ @ 10 MHz

Differential Characteristic Impedance 100 Ω±10% @ 10 MHz

Maximum Cable Length: 100 meters (330 feet)

10BASE-T Connector Characteristics:

The two active pairs in a 10BASE-T network are pins 1 & 2 and pins 3 & 6.

Use only dedicated wire pairs (such as blue/white & white/blue, orange/white

& white/orange) for the active pins. 10BASE-T cable for unlike devices (such as

hub to terminal device) must be configured as straight through; 10BASE-T

cable for like devices (such as hub to hub or terminal device to terminal

device) must be configured as crossover.

Twisted

Pair #1

Twisted

Pair #2

Crossover Cable

Connectors for like devices

Twisted

Pair #1

Twisted

Pair #2

Straight Through Cable

Connectors for unlike devices

LANMaster™ T8 8-Port Ethernet™ Repeater Hub

Table of Contents

1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . 1

The LANMaster T8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Networking the LANMaster T8 . . . . . . . . . . . . . . . . . . . . . . .2

Connectors, Switch, Indicators, . . . . . . . . . . . . . . . . . . . . . .3

2 SITE CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . 4

3 INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Unpacking the LANMaster T8 . . . . . . . . . . . . . . . . . . . . . . . .5

Installing LANMaster T8 at Site . . . . . . . . . . . . . . . . . . . . . . .6

Installing Network Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

10BASE-T Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

10BASE-2 Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

10BASE-5 Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

10-Mb/s Network Configuration Guidelines . . . . . . . . . . . . . . .9

Installing Twisted-Pair 10BASE-T Cable . . . . . . . . . . . . . . . . . .11

Installing Thinnet 10BASE-2 Cable . . . . . . . . . . . . . . . . . . . . .12

Installing Thicknet 10BASE-5 Cable . . . . . . . . . . . . . . . . . . . .13

Powering the LANMaster T8 . . . . . . . . . . . . . . . . . . . . . . . .14

4 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Monitoring Power LED . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Monitoring Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

5 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . 16

Fault Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Technical Support Contact . . . . . . . . . . . . . . . . . . . . . . . . .16

WARRANTY STATEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

ETHERNET CABLE SPECIFICATIONS. . . . . . . . . . . . . . . . . . 19

LANMASTER T8 8-PORT HUB SPECIFICATIONS . . . . . . . 21

ETHERNET CABLE SPECIFICATIONS

AUI Cable and Connector Specifications

The cable is a special 4-pair individually shielded with an overall braided

shield.

Maximum AUI Cable Length: 50 meters (165 feet)

AUI Connector Characteristics:

AUI Port: Male DB-15 with locking posts.

AUI Connection: Cable shell must be grounded.

Connector Legend: 1 Logic Ref. 6 Power Return 11 Logic Ref

2 Collision+ 7 N/C 12 Receive

3 Transmit+ 8 Logic Ref. 13 Power

4 Logic Ref. 9 Collision-- 14 Logic Ref.

5 Receive+ 10Transmit- 15 N/C

10BaseFL Cable and Connector Specifications

The physical characteristics of the 10BaseFL cable must meet or exceed IEEE

802.3 10BaseFL specifications.

10BaseFL Cable Characteristics:

Fiber Optic Cable Recommended: 62.5/125 µm multimode fiber

Optional: 100/140 µm multimode fiber

85/125 µm multimode fiber

50/125 µm multimode fiber

Fiber Optic Transmitter Power: Average power: -15.0 dBm

Peak power:-12.0 dBm ±1dBm

Fiber Optic Receiver Sensitivity: Average sensitivity: -27.4 dBm

Bit error rate: ≤10-10

Maximum Cable Length: 2000 meters (6500 feet)

10BaseFL Connector Characteristics:

ST type connectors (SMA type available upon request)

10BASE-5 Cable and Connector Specifications

The physical characteristics of the 10BASE-5 cable must meet or exceed IEEE

802.3 10BASE-5 specifications.

10BASE-5 Cable Characteristics:

Cable type: RG8 Solid Coaxial (ThickNet)

Impedance: 50 Ω@ 10 MHz

Capacitance: 26pF/ft

Maximum Cable Length: 500 meters (1650 feet)

Maximum number network connections: 100

Minimum distance between connections: 2.5 meters (8.2 feet)

Terminate 10BASE-5 cable at one end using a 50 ohm terminator and at the

other end using a 50 ohm terminator grounded to earth ground.

Maximum number of terminal devices on Ethernet network: 1024

LANMaster™ T8 8-Port Ethernet™ Repeater Hub 18

1. INTRODUCTION

This guide is intended for the system or network administrator

responsible for installing and monitoring a TRANSITION Networks

LANMaster™ T8 8-Port Ethernet™ Repeater Hub. A working

knowledge of local area network (LAN) operations, including

familiarity with communications protocols used on interconnected

LANs, is assumed.

The LANMaster T8

The TRANSITION Networks LANMaster T8 8-Port Ethernet Repeater

Hub is a 10 Mb/s network device that connects 10BASE-T and

10BASE-2 OR 10BASE-5 Ethernet segments into a single Ethernet

network.

Features:

• Eight fixed RJ-45 twisted-pair connectors at front provide

terminal device connections

• Optional RJ-45 uplink port connector at front eliminates need

for crossover cable between hubs

• BNC and AUI connectors at back provide optional connection

to EITHER 10BASE-2 OR 10BASE-5

• LED indicators at front provide continuous LANMaster T8

network traffic data

X – 1 2 3 4 5 6 7 8

LANMaster T8 Front

LANMaster T8 Back

Link Status

5 6 7 8

1 2 3 4

Act AUI BNC

The sole purpose of this remedy shall be provided the customer with the replacement or

repair of non-conforming goods in the manner described in this Warranty statement. This

exclusive remedy shall not be deemed to have failed of its essential purpose so long as TN is

willing and able to repair or replace the defective item(s) or refund the purchase price.

TN reserves the right to inspect products claimed to be defective under warranty either at the

customer’s location or at TN’s plant. TN assumes no liability for liability charges incidental

to the adjustment, service, repairing, removal or replacement of the product, or other costs,

or the expense of repairs made outside of its factory, except when made with TN’s prior

written consent. Additionally, Transition Networks reserves the right to charge for all testing

and shipping incurred, if after testing, a return is classified as “No Problem Found”.

TN’s total liability in connection with the products and their installation to all persons and

from all causes in the aggregate, whether in contract, tort, or strict liability, shall not exceed

the amount paid to TN for the product directly related to the alleged damage. However, in

no event shall TN have any liability to a customer or any third party for products

manufactures according to the customer’s specifications.

C. Return Procedure

The customer must follow this procedure for the return of defective items:

1. Locate the serial number(s) of the item(s) to be returned.

2. Determine the date the item(s) was received.

3. Contact Transition Networks Technical Support to determine if the problem can be

corrected on site.

If not, and the product is covered by warranty, then:

• Call the distributor directly or contact TN.

• Request a Return Material Authorization (RMA).

• Ship the item, prepaid in original packaging to Transition Networks at the above

address.

• Include the RMA number on the outside of the carton and/or on the Packing List.

• Include a copy of the RMA form.

• Include a copy of the original invoice or packing list (if possible) to expedite

processing.

• The item(s) may be shipped by the customer or the distributor.

• Transition Networks will repair or replace the unit, at TN’s discretion, and cover the

cost of the return freight to the distributor or to the customer, whichever requested

the RMA number.

If the item(s) was received more than five years ago, or if the item(s) is no longer covered by

warranty for other reasons, then:

• Call the distributor or contact TN.

• Request a Material Repair Authorization number (MRA).

• Ship the item(s), prepaid, in the original packaging to Transition Networks at the

above address.

• Include the MRA number on the outside of the carton add/or on the Packing List.

• Include a copy of the MRA form.

• Include a copy of the original invoice or packing list (if possible) to expedite processing.

• Only the customer (end-user) may send the items(s) to TN.

• TN will contact the customer after the item(s) have been received, inspected, and a

cost estimate of the repair determined.

• The repair charges may be billed, with customer’s approval, though the distributor, or

on a prepaid or C.O.D. basis directly to the customer. The charges will include the

cost of shipping.

The return authorization numbers are valid only for 90 days from the date issued.

LANMaster™ T8 8-Port Ethernet™ Repeater Hub 2

Networking the LANMaster T8

The LANMaster T8

Repeater Hub can be

installed in an Ethernet

network by connecting

10BASE-T cable between

RJ-45 connectors at the

front of the LANMaster

T8 and various network

terminal devices.

Additionally,

LANMaster T8

hubs can be

cascaded using

twisted-pair

10BASE-T cable

and the X

(crossover) uplink

RJ-45 connector.

And, the BNC connector on the LANMaster T8 back can be connected

to 10BASE-2 or the AUI connector on the LANMaster T8 back can be

connected to to 10BASE-5 (or, through a media converter installed on

the AUI connector, to 10BASE-T, 10BASE-5, or 10BASE-FL).

X – 1 2 3 4 5 6 7 8

X – 1 2 3 4 5 6 7 8 X – 1 2 3 4 5 6 7 8

Warranty Statement

A. Five Year Warranty

Transition Networks, Inc. (TN) warrants, for a period of five years, that TN products (with

the exception of power supplies and fans that TN warrants for two years) will be free from

defects in materials and workmanship, and will be in conformity with TN’s specifications.

TN’s warranty on products manufactured by or assembled for TN in accordance with a

customer’s specifications, is a five-year warranty that the goods conform to such

specifications.

The warranty is invalidated if the goods have been subject to alterations, misuse, accident,

Acts of God (e.g., damage by floods, lightning strikes, Etc.), tampering, improper

maintenance, improper installation, or abuse. If the user is unsure about the proper means

of installing or using the equipment, contact TN’s free Technical Support or Network

Design Services, which can be reached by:

Telephone 1.800.LAN.WANS or 612.941.7600

Fax 612.941.2322

E-mail [email protected]

Internet http://www.transition.com

THE ABOVE WARRANTY IS EXCLUSIVE AND EXTENDS ONLY TO PRODUCTS

ASSEMBLED BY TRANSITION NETWORKS, INC. TO THE EXTENT PERMITTED BY LAW,

TN DOES NOT MAKE AND DISCLAIMS ALL OTHER WARRANTIES, EXCEPT TITLE,

EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY OF

DESCRIPTION, MERCHANTIBILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-

INFRINGEMENT, AND ANY WARRANTY BASED UPON PRIOR WRITTEN OR ORAL

REPRESENTATIONS REGARDING SUCH PRODUCTS MADE BY TN, ITS EMPLOYEES,

AGENTS, OR REPRESENTATIVES.

B. Limitations and Exclusions

If the customer believes any goods sold by TN are defective and within the warranty period,

the following general procedure will be followed:

1. Locate the serial number and delivery date of the item(s).

2. Notify TN within the warranty period.

3. TN will promptly issue a return authorization form for the goods.

4. Upon receiving the form, the customer will promptly return the item(s) at customers

own expense, shipped prepaid, to the distributor from which it was purchased, or

directly to TN.

TN will only accept goods for return if the following conditions have been met:

1. A return form is obtained from TN.

2. The freight charges have been prepaid by the customer.

3. Goods are re-packed in their original packaging.

If under warranty TN shall, at its option, (1) repair the goods free of charge (2) replace the

goods free of charge, or (3) accept the return of the item(s) and credit the current price to

the reseller (within 90 days of purchase), or (4) if the goods are not under warranty, will

repair the item(s) at a minimum charge of USD $200 (two hundred U.S. dollars) per item.

THIS IS THE EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY. IN NO EVENT

SHALL TRANSITION NETWORKS BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL OR

CONSEQUENTIAL DAMAGES OF ANY KIND, WHETHER FOR BREACH OF ANY

CONDITION OF SALE, FOR NEGLIGENCE, ON THE BASIS OF STRICT LIABILITY,

CONTRACT, OR OTHERWISE AND IRRESPECTIVE OF WHETHER TN IS INFORMED BY

CUSTOMER OF THE POSSIBILITY OF SUCH DAMAGES IN ADVANCE OF THIS SALE.

LANMaster™ T8 8-Port Ethernet™ Repeater Hub 16

Connectors and Indicators

CONNECTORS

Eight (8) straight-through RJ-45 connectors, labeled 1-8, and one (1)

crossover RJ-45 connector, labeled X, are located on the front of the

LANMaster T8.

One (1) AUI connector, one (1) BNC connector, and one (1) AC

power supply adapter connector are located on the back of the

LANMaster T8.

LED INDICATORS

Steady green Act(ivity) LED

indicates connection of the

LANMaster T8 to external AC

powerr. Blinking green

Act(ivity) LED indicate

network traffic.

Steady green Link Status

LEDs indicate (for each port)

the integrity of the network

link at the RJ-45 connector.

Blinking green Link/Receive

LEDs indicate (for each port)

reception of valid data.

5. MAINTENANCE

WARNING: DO NOT, UNDER ANY CIRCUMSTANCES, open

and attempt to repair the LANMaster T8. Failure to observe this

warning could result in personal injury or death from electrical

shock.

NOTE: Failure to observe the above warning will immediately void the

warranty.

Fault Isolation

If two network devices fail to communicate through the LANMaster T8,

consider the following:

• Are the LEDs described in the previous section functioning

properly?

• Do network devices have Link Integrity enabled?

• Do network devices communicate when the LANMaster T8 is

not installed between them?

• Is flat or “silver satin” wire used in site internal wiring?

• Are internal wiring patch cords, punch down blocks, and wall

jacks properly pinned or configured?

• Is the thinnet cable unbroken and properly connected?

• Are network interface cards properly configured?

Technical Support Contact

For assistance in fault isolation and in maintaining the LANMaster T8,

contact:

Technical Support (800) 260-1312

or your local distributor.

Power Adapter Connector

AUI Connector

BNC Connector

Link Status

5 6 7 8

1 2 3 4

Act AUI BNC

LED Indicators

Straight-through RJ-45 Connectors

Crossover RJ-45 (X) Connector

X – 1 2 3 4 5 6 7 8

Link Status

5 6 7 8

1 2 3 4

Act

LANMaster™ T8 8-Port Ethernet™ Repeater Hub 4

4. OPERATION

The LANMaster T8 requires no intervention beyond occasionally

monitoring the Power and Status LEDs.

Monitoring Status LEDs

Steady green Act(ivity) LED indicates connection of the LANMaster T8

to external AC powerr. Blinking green Act(ivity) LED indicate network

traffic.

Steady green Link Status LEDs indicate (for each port) the integrity of

the network link at the RJ-45 connector. Blinking green Link/Receive

LEDs indicate (for each port) reception of valid data.

2. SITE CONSIDERATIONS

The site for the LANMaster T8 must provide:

• AC power outlet for each LANMaster T8

• Adequate ventilation

• Standard environmental conditions

• Isolation from electrical noise, including radio transmitters and

broadband amplifiers, motors, high power electrical lines, or

fluorescent light fixtures.

Additionally:

• The twisted pair cables should not run in the same conduit with

power line cables.

• Phone lines should be separated from data cables.

• Flat or “silver satin” cables should not be used.

• RJ-45 connected cables should be configured as crossover or

straight through according to installation requirements.

And:

• Since the LANMaster T8 is an Ethernet repeater, the entire

installation should comply with the IEEE Ethernet 802.3

specification

Link Status

5 6 7 8

1 2 3 4

Act

AUI BNC

Link Status

5 6 7 8

1 2 3 4

Act

LANMaster™ T8 8-Port Ethernet™ Repeater Hub 14

Powering the LANMaster T8

To power ON the LANMaster T8:

1. Verify that the LANMaster T8 power supply adapter is the

correct one for the site installation.

2. At LANMaster T8 back, locate the power receptacle.

3. Connect the LANMaster T8 power connector end of the

power supply adapter to LANMaster T8 power receptacle.

4. Plug external power connector end (male) of the power

supply adapter into correct voltage AC wall socket.

5. At LANMaster T8 front, verify that Act(ivity) LED is

illuminated.

3. INSTALLATION

To install the LANMaster T8:

• Unpack the LANMaster T8

• Install LANMaster T8 at site

• Install Network Cable

• Power the LANMaster T8.

Direction is provided in the pages that follow.

Unpacking the LANMaster T8

The LANMaster T8 packing contents should include the following:

Item Part Number

LANMaster T8 Hub E-TBT-HB-0804

(includes mounting brackets and screws,

BNC T-connector and terminator, and

adhesive-backed rubber feet)

Power Supply Adapter 3532, 3533, 3534, 3535, or 3536

(depending upon power configuration

in country where installed)

User’s Guide 33022

LANMaster™ T8 8-Port Ethernet™ Repeater Hub 6

Installing LANMaster T8 at Site

NOTE: Mounting brackets, screws, and rubber feet are provided.

To install the LANMaster T8 on table or other flat surface:

1. Carefully turn LANMaster T8 to side.

2. Install four (4) rubber feet (included with packing material):

• Separate rubber feet.

• Remove protective paper from

adhesive surface of rubber foot.

• Position and secure each rubber

foot as shown.

3. Return LANMaster T8 to upright

position.

To install the LANMaster T8 mounting bracket under shelf or on wall:

1. Using mounting bracket as a guide, with

pencil or other marking device, mark screw

installation locations on wall or under shelf.

2. Using Phillips screwdriver, install two (2)

screws (included with packing material) at

installation locations marked on wall or under

shelf.

3. Using Phillips

screwdriver, install two

(2) screws (included

with packing material)

through mounting

bracket securely into

LANMaster T8 chassis.

4. Carefully install

mounting

bracket, with

attached

LANMaster T8 chassis, to installed mounting screws,

aligning mounting bracket so that mounting screws

are secured at narrow end of bracket mounting

X – 1 2 3 4 5 6 7 8

Installing Thicknet 10BASE-5 Cable

The LANMaster T8 provides a female AUI connector at the back for

network connection to 10BASE-5 through an AUI drop cable or to

10BASE-2, 10BASE-T, or 10BASE-FL through a transceiver.

CONNECTING TO 10BASE-5 USING AUI DROP CABLE

To connect to 10BASE-5 cable using AUI drop cable:

1. Locate or build IEEE 802.3 compliant AUI drop cable.

2. Connect AUI drop cable

male connector to female

AUI (DTE) connector on

LANMaster T8.

3. Connect AUI drop cable

female connector to the AUI

port on a 10BASE-5 cable

transceiver or media

attachment unit (MAU).

4. Verify that 10BASE-5

segment is terminated at both ends using 50-ohm terminators.

CONNECTING TO NETWORK USING TRANSCEIVER

NOTE: Refer to transceiver documentation for detailed specifications.

To connect to network using transceiver:

1. Locate IEEE 802.3 compliant transceiver with male AUI

connector and with required network media connector.

2. Connect transceiver male AUI connector to the female AUI

connector on LANMaster T8.

3. Referring to transceiver documentation, connect transceiver

network media connector to the network media.

50 ohm terminator

TO FIBER, COAX,

OR TWISTED PAIR

LANMaster™ T8 8-Port Ethernet™ Repeater Hub 12

Installing Network Cable

10BASE-T Requirements

STRAIGHT-THROUGH/CROSSOVER CABLE/CONNECTOR

NOTE: The 10BASE-T cable and RJ-45 jacks for hub to terminal device

connections must be configured as straight through. The 10BASE-T

cable and RJ-45 jacks for hub to hub connections must be configured

as crossover.

The “X” port provided on the LANMaster T8 changes a physical

straight through cable configuration to a logical crossover cable

configuration for hub to hub connections.

Therefore, ensure that all 10BASE-T cable to be installed is straight-

through:

Straight Through Cable

at RJ-45 Plug

Hub . . . . . . . . . . . . . . . .PC, transceiver, NIC, printer

RJ-45 Male . . . . . . . . . . . . . . .RJ-45 Male

1 . . . . . . . . . . . . . . . . . . .1

2 . . . . . . . . . . . . . . . . . .2

3 . . . . . . . . . . . . . . . . . .3

6 . . . . . . . . . . . . . . . . . . .6

RJ-45PLUG

234567

RJ-45JACK 18

Installing Thinnet 10BASE-2 Cable

The LANMaster T8 has a female BNC MDI connector installed at the

back for connection to 10BASE-2 cable and comes with a mating T-

connector and a 50-ohm segment terminator for making the cable

connection.

To connect to 10BASE-2 network cable:

1. Locate or build IEEE 802.3 compliant 10BASE-2 cable with

male BNC connectors installed at both ends.

2. Install the mating T-connector to the female BNC connector on

the LANMaster T8.

3. Install 10BASE-2 cable to one side of the T-connector.

4. Install 10BASE-2 cable to other side of the T-connector

OR, if the LANMaster T8 is the last network device in the daisy

chain, install a 50-ohm terminator.

5. Verify that the 10BASE-2 segment coax cable segment is

terminated properly at both ends.

In a coax thinnet

installation, the first and

last device in the daisy-

chain must be

terminated with a 50

ohm terminator.

Additionally, the

10BASE-2 segment must

be grounded to “earth

ground” at one end.

50 ohm terminator

earth ground

The two active pairs in a

10BASE-T network are pins 1 & 2

and pins 3 & 6. Use only

dedicated wire pairs (such as

blue/white & white/blue,

orange/white & white/orange) for

the active pins.

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