Longshine LCS-883C-TB User Manual

10Base-T
to

10Base-2 Converter

User’s Manual

10Base-T to 10Base-2 Converter

COPYRIGHT

All rights reserved. No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in any form or by any
means, whether electronic, mechanical, photo copying, recording
or otherwise, without the prior written permission of the publisher.

FCC WARNING

This equipment has been tested and found to comply with the
limits for class A device, pursuant to part 15 of FCC rules. These
limits are designed to provide reasonable protection against
harmful interference in a commercial installation. This equipment
generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause
harmful interference to radio communication. 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.

10Base-T to 10Base-2 Converter

Table of Contents

1. Introduction

Product Summary & Benefits………….…. 1
Features…………………………………….. 3
Specifications………………………………. 4

2. Installation

Package Contents………………………… 5
MDI/MDIX Connection……………….……. 6
Positioning of Converter…………………… 7

Connections.............……………………… 9

3. LED Indicators

LED Indicators…………….………………. 10

4. Appendix

A - Internal Power Supply ...………..…… 11

B - Mounting ................………….....…… 12

C - Cables ................……….....………… 13

D - About RJ-45 Cables ..…………..…… 14

10Base-T to 10Base-2 Converter

1
Introduction

Product Summary & Benefits

The 10Base-T to 10Base-2 Media Converter was specifically
designed to offer the network designer the tools for migration from
Coaxial based Ethernet to UTP based Ethernet. Now, migration or
expansion of existing networks can be achieved with minimum
cost and complexity. The converter is completely transparent to
the network so the network performs exactly the way it did before ­only now it can migrate both UTP and Coaxial mediums.

Expands the Size of an Existing Network

Provides UTP/Coaxial connectivity to Ethernet segments, allowing
for even further networking expansion between extended nodes.
Allows for the quick and easy addition of Coaxial segments to
existing 10Base-T networks.

Enhances Networking Distances

Connecting this converter to UTP segments can further extend
distances of up to 185 meters for a total segment length of 285
meters. The Converter can be connected to an additional Fiber
converter for even longer extensions.

10Base-T to 10Base-2 Converter

Cabling Flexibility

This unit allows network managers to put UTP cabling anywhere
within a network without retrofitting the arrangement of the Ethernet
network. Its sleek design makes it easy to be install in a compact
space or on wall mount locations. Several converters can be
simultaneously installed by using a 19” Rack-mount Chassis.

Converter with BNC T-connector Attached

10Base-T to 10Base-2 Converter

Features

• Complies with IEEE 802.3 10Base-2/T standards

• MDI/MDI-X push button selection for RJ-45 port

connection

• Extended distances of up to 285m

• Operates in half duplex mode

• Compatible with other 10Base-2/T devices

• Status LEDs for RCV, LNK, & Part to easily monitor

network activities

• External and Internal power supply options

• FCC Class A & CE approved

10Base-T to 10Base-2 Converter

Specifications

Standard: IEEE 802.3 10Bade-T/2

Connectors: 1x shielded RJ-45, 1x BNC

1 x BNC T-connector

Max. Distance: UTP: 100 meters (Cat 3.)

Coaxial: 185 meters

Unit LED: Power , Link, Receive, and Partitioning

Delay: Same as Class 1 repeater, Typically less than 23Bit

Power: AC voltage 12VDC at 0.8A power adapter

Frequency: 47Hz to 63Hz
Please see Appendix A for internal Power Supply

O

to 70C

O

O

Temp: Operating: 0CO– 70C

Storage:

-20C

Humidity: Operating: 10% to 80% RH

Dimensions: 109.2 x 73.8 x 23.4mm (L x W x H)

10Base-T to 10Base-2 Converter

2

Installation

Package Contents

Before proceeding, please check that your package contains the
following items, and that they are in good order:

• One converter

• One AC adapter (external) or one power cord (internal)

• One BNC T-connector

• Four self-adhesive pads

• One user’s manual

To successfully install your converter, please see the following
procedures below:

• Using 10Base-2 Cable

• MDI/MDI-X Connection

• Positioning of Converter

• Install Your Converter

10Base-T to 10Base-2 Converter

MDI/MDI-X Connection

The MDI/MDI-X push button alleviates the worry of cable type
configuration when connecting the converter with another 10Base­T device. Simply refer to the table below for the correct switch
selection:

Device Cable Selection

Hub or Straight Select
Switch Through MDI

Hub or Crossover Select
Switch MDI-X

DTE Straight Select
(NIC) Through MDI

Configuration

Crossover Selection Table

MDI-X

MDI

10Base-T

Location of Crossover Switch

10Base-T to 10Base-2 Converter

Positioning of Converter

The following are drawings of typical Applications for the Converter.
Obviously the actual distances will depend on your network, the
quality of cables used, and the terminal equipment employed.

Example 1

The unit allows conversion from 10Base-T UTP to 10Base-2
Coaxial cable. In this configuration, equipment can be added to
existing 10Base-T networks. Distances of up to 185 meters can
be achieved.

10Base-T to 10Base-2 Converter

Example 2

The unit allows conversion from 10Base-T UTP to 10Base-2
Coaxial cable. In this configuration an additional 10Base-2
segment can be added to the network.

Example 3

By using a combination of fiber and UTP converters, it is possible
to achieve extended 10Base-2 segments.

10Base-T to 10Base-2 Converter

Connections

10Base-T Connection

1. Make sure that the length for straight through twisted pair
cable between 10Base-T device (hub or switch) and
converter is no greater than 100 meters.

2. Connect one end of twisted pair cable to RJ-45 jack on the
converter and the other to the RJ-45 jack on the 10Base-T
device.

10Base-2 Connection

To connect to an Ethernet using 10Base2 cable, do the following:

1. Attach the supplied BNC T-connector to the converter’s
BNC connector.

2. Connect one end of a Thinnet (10Base2) coaxial cable to the
BNC T-connector attached to the media converter.

3. Connect the other end of the coaxial cable to the BNC T­connector attached to the Ethernet device.

Note: If either your converter or the Ethernet device is an end

node, attach a BNC terminator to the open connector on the
BNC T-connector.

10Base-T to 10Base-2 Converter

3

LED Indicators

This converter has several LEDs to enable you to determine the
status of the converter and to see what is happening across your
network. They are as follows:

10Base-2

LNK

RCV

PART

10Base-T

MDI-X

MDI

PWR Green light - Illuminates when power is on

LNK Green light - Illuminates when receiving link pulses

from compliant devices.

RCV Amber light - Flashes or illuminates when receiving

data packets (depends on the rate of
data passing through).

PART Green light - Illuminates when partitioning occurs.

10Base-T to FL Converter

Appendix A

Internal Power Supply Models

Rear View of Converter with AC Power Supply

Power: 90 - 240V AC (Optional 12V Adapter)
Dimensions: 109 x 174 x 44.3 mm (LxWxH)

Rear View of Converter with DC Power Supply

Power: -48V DC (Optional 12V Adapter)
Dimensions: 109 x 174 x 44.3 mm (LxWxH)

10Base-T to FL Converter

Appendix B

Coverter Mounting

This converter can be placed in any location that will make its
installation convenient. If you place the converter on a horizontal
surface or on top of existing networking equipment, please affix the
four rubber pads included in the package.

This converter can also be mounted on a vertical surface. Simply
use the underside of the unit as a template to measure and mark
out the position of the holes on to the surface where the unit is to
be installed. Then use two screws to mount the converter firmly in
place.

Please exercise caution when using power tools. Also, install this
unit away from damp or wet locations, or in close proximity to very
hot surfaces. These types of environments can have a detrimental
effect on the converter and cables. An ideal location is a lightly
cooled place such as a typical equipment room.

10Base-T to FL Converter

the diameter

for UTP and

twist too

the internal

Place cable ties

not over tighten

to avoid using

the cable

trays and when

Appendix C

Cables

The following are some recommendations as to what you should
and should not do when installing cables. Remember - cables are
the deciding factor in network performance

6mm

Try to
maintain
a bend

24mm

radius of
(min.) 4x

of the cable
100x for fiber.

at regular
intervals - do

cable ties - try
with fiber.

Try not to
allow the
cable to

much - this
creates a
strain on

cables.

Do not stretch
especially on

corners, in
vertical cable

spanning long
distances.

10Base-T to FL Converter

Converter Hub

Appendix D

About RJ -45 Cables

When connecting your network devices, use standard
Category 3 eight -way cables for 10Base-T configurations
and Category 5 cable for 100Base-TX. The pin
assignments are as follows:

Pin 1 TD+ Pair 2 White/Orange
Pin 2 TD- Pair 2 Orange/White
Pin 3 RX+ Pair 3 White/Green
Pin 4 N/A Pair 1 Blue/White
Pin 5 N/A Pair 1 White/Blue
Pin 6 RX- Pair 3 Green/White
Pin 7 N/A Pair 4 Brown/White
Pin 8 N/A Pair 4 Brown/White

Application Cable Type Application

Converter

to

Converter

or

Network Adapter

Converter

to

Switch

Straight-through

Cable

Cross-Over

Cable

1 1
2 2
3 3
6

Converter Converter

1

1

2

2

3

3

6 6

6