Planet Ethernet Fiber Optic Transceiver ET-118 User manual

ET-118
Ethernet Fiber Optic
Transceiver
User’s Manual

FCC Information
The Federal Communication Commission
Radio Frequency Interference Statement
includes the following paragraph:
This equipment 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 in a
residential 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.
However, there is no guarantee that
interference will not occur in a particular
installation. If this equipment does cause
harmful interference to radio or television
reception, which can be determined by turning
the equipment off and on, the user is
encouraged to try to correct the interference by
one or more of the following measures:
§Reorient or relocate the receiving
antenna.
§Increase the separation between the
equipment and receiver.
§Connect the equipment into an outlet on a
circuit different from that to which the
receiver is connected.
§Consult the dealer or an experienced
radio / TV technician for help.
The user should not modify or change this
equipment without written approval from
company name. Modification could void
authority to use this equipment.
For the safety reason, people should not work
in a situation which RF Exposure limits be

exceeded. To prevent the situation happening,
people who work with the antenna should be
aware of the following rules:
1. Install the antenna in a location where a
distance of 6.5 cm from the antenna may
be maintained.
2. While installing the antenna in the
location, please do not turn on the power
of wireless card.
3. While the device is working, please do
not contact the antenna.
Copyright
Copyright © 1999 Planet Technology Corp., all
rights reserved. No part of this publication may
be reproduced, adapted, stored in a retrieval
system, translated into any language, or
transmitted in any form or by any means
without the written permission of Planet
Technology Corp.
Trademarks
Planet is trademark of Planet Technology Corp.,
all other trademarks throughout this manual are
the property of their respective companies.
Limited Warranty
In no event will Planet be liable for any
damage, including loss of data or profits, cost
of cover, or other incidental, consequential or
indirect damages arising from the installation,
maintenance, use, performance, failure or
interruption of Planet’s products, whatever
caused and on any theory of liability. This
limitation will apply even if Planet has been
advised of the possibility of such damage.

CE Mark Warning
This is a Class B product. In a domestic
environment, this product may cause radio
interference, in which case the user may be
required to take adequate measures.
About This Manual
Ethernet Fiber Optic Transceiver Installation
Guide is published by Planet Technology Corp.
in 1999. This Revision is issued in Oct. 1999.
Revision
Ethernet Fiber Optic Transceiver
ET-118 User’s Guide
Part No.: EM-ET118

Contents
General Descriptions............................
1
Introduction....................................... 1
Features............................................. 1
AUI (D-15) connector descriptions...
2
ST Connector.................................... 3
LED Indicators..................................
4
Duplex Fiber Cable........................... 4
Absolute Maximum Ratings............. 5
Setting and Installation........................
6
Setting the SQE Switch.................... 6
Installation........................................
6

1
Chapter 1
General Descriptions
1.1 Introduction
The fiber Optic Medium Attachment Unit
provides the complete Attachment Unit
Interface (AUI) to fiber optic interface. It
connects to any standard IEEE802.3 Data
Terminal Equipment AUI connector, and
requires no configuration. It is connected
through a standard AUI cable or direct
connection to an Ethernet board or Ethernet
device unit via the AUI port. The MAU
includes the complete transmission, receiving,
and collision detection, jabber timer, link test
function as specified by the IEEE802.3 for use
in a 10Mbps CSMA/CD Ethernet on a duplex
fiber optic LAN system.
♦Complies with the IEEE802.3 10Base-FL
standards.
♦Supports up to 2000meters of duplex fiber
optic cable segment.
1.2 Features
♦Compact design allows direct connection
to an Ethernet board of Ethernet device
unit via the AUI port.
♦Two female ST connectors, one for
transmitting data and the other is for
receiving data.
♦Link-integrity test for the automatic
checking of fiber lines
♦Provides LEDs for a quick visual check
of individual link status, collision,
Transmit, and receive.
♦Selectable end-of-packet SQE test

2
−Allow SQE (heartbeat) to be
disabled when used with a
concentrator / hub / repeater
−When SQE test switch is enabled,
send a heartbeat signal to the
attached station at the end of a
transmission
1.3 AUI (D-15) connector descriptions
Pin Name Pairs Use
3DO+ Transmit Data Out +
10 DO- Pair Data Out -
11 DO S Data Out
Shield
5DI+ Receive Data In +
12 DI- Pair Data In -
4DI S Data Shield
7NC Not Connected
15 NC Not Connected
8NC Not Connected
2CI + Collision Control In +
9CI - Pair Control In-
1CI S Control Shied
6VC Power Voltage
Common
13 VP Pair Voltage
Common
14 VS Voltage Shield
Shell
Ground PG Protective

3
1.4 ST Connector

4
1.5 LED Indicators
LED
MARK
STATE
DESCRIPTONS
Power PWR On The transceiver has
been connected
Off Not connection
Link Link On Link Beat Enable:
A good link has
been established
with a functioning
device
Off Link Test signal is
not received
Transmit Tx Blink Data packet is
transmitted.
Off No data packet is
transmitted.
On Large data is being
transmitted
Collision Col Blink A collision is
detected.
Off No collision is
detected.
On Maybe there’s a
problem with the
transceiver.
1.6 Duplex Fiber Cable
This product supports 50/125, 62.5/125, 80/125
or 100/140 micron core duplex fiber optic
cable.

5
1.7 Absolute Maximum Ratings
Ambient operating
temperature 0°C to +50°C
Storage temperature -20°C to +85°C
Operating relative
humidity 8% to 80% RH
Storage relative
humidity 5% to 98% RH
Power
Input voltage: 10.2VDC to 15.75VDc
Maximum input
current: 250mA

6
Chapter 2
Setting and Installation
2.1 Setting the SQE Switch
When this transceiver is connected directly to a
repeater, the SQE function must be disabled.
Note that a 10Base-T concentrator is a repeater
unit.
SQE Test:
§Default: enable
§Enable: attaching the transceiver to a LAN
card in a computer, or to device expecting
the SQE test signal such as bridge or router
§Disable: attaching the transceiver to a
hub’s or repeater’s AUI port
2.2 Installation
Because of the ET-118 compact design, it is
not necessary to connect it to another Ethernet
device via transceiver cable.
The ET-118 15-pin male connector is plugged
into the 15-pin female AUI connector on a
coax Ethernet board or other Ethernet device,
such as a repeater. Once attached, make sure
that the slide locks are properly latched. The
other end of the ET-118 features two female ST
connectors, one for transmit data and one for
receive data. These make with two male ST
connectors at one end of a duplex fiber optic
cable segment, as showing figure 2-1 and
figure 2-2.
§Connecting to Ethernet board through
AUI port
6

7
Figure 2-1 Connecting to Ethernet Board
through AUI Port
§Connecting to Ethernet Repeater through
AUI port
Figure 2-2 Connecting to Ethernet Repeater
Through AUI Port
Part No.: EM-ET118