Asante Technologies 10BaseFL, 10BaseT, 10Base2 User Manual

Mini MAU

Installation Guide




Copyright Notice

Copyright 1993 by Asanté Technologies, Inc.
All rights reserved. No part of this manual, or any

associated artwork, software, product design or
design concept, may be copied, reproduced or
stored, in whole or in part, in any form or by any
means mechanical, electronic, optical,
photocopying, recording or otherwise, including
translation to another language or format, without
the express written consent of Asanté
Technologies, Inc.

Trademarks

Asanté Technologies AsantéHub 2072 are
trademarks of Asanté Technologies, Inc.

Apple, AppleTalk, A/UX, EtherTalk, AppleShare, and
Macintosh are registered trademarks of Apple
Computer, Inc.

Ethernet is a registered trademark of the Xerox
Corporation, Inc.

All brand names and products are trademarks or
registered trademarks of their respective holders.

Asanté Warranty

Asanté Technologies, Inc. warrants that its
Ethernet interface products will be free from
defects in title, materials and manufacturing
workmanship for a period of one (1) year from the
date of purchase. If a Mini MAU is found to be
defective, then, as your sole remedy and as the
manufacturer’s only obligation, Asanté
Technologies, Inc. will repair or replace the
product provided that (1) you call Asanté

Technologies, Inc. for a Returned Merchandise
Authorization (RMA) number, that (2) you clearly
write the RMA number on the outside of the
package, and that (3) you return it, postage
prepaid, during the warranty period. This warranty
is exclusive and is limited to Asanté Ethernet
network interface products.

This warranty shall not apply to Asanté Ethernet
interface products that have been subjected to
abuse, misuse, abnormal electrical or
environmental conditions, or any condition other
than what can be considered normal use.

Asanté Warranty Disclaimer

Asanté Technologies, Inc. makes no other
warranties, express, implied or otherwise,
regarding Asanté Mini MAU products, and
specifically disclaims any warranty for
merchantability or fitness for a particular purpose.

The exclusion of implied warranties is not
permitted in some States and the exclusions
specified herein may not apply to you. This warranty
provides you with specific legal rights. There may be
other rights that you have which vary from State to
State.

Introduction

Thank you for purchasing a Mini MAU
from Asanté Technologies.

The Asanté Mini MAU is an ideal network
solution for connecting computers and
other peripherals with an AUI port to a
10BaseT, 10Base2 or 10BaseFL Ethernet
network.

Mini MAU

Page

1

Asking for assistance

To contact Asanté Technical Support for
help:

[phone]

Telephone

[phone]

Fax

Applelink

mail

Internet mai

[phone]
ASANTE.TECH

[e-mail]

l

Technical Support Hours

6:00 AM to 6:00 PM Pacific Standard Time,
Monday—Friday

Mini MAU

Page

2

Product Overview

Asanté Mini MAUs

The Asanté Mini MAU plugs directly onto
the back of your PC, Macintosh or any
other network device that has a AUI inter­face.

Asanté offers three types of MAUs:

❏

AUI to Mini MAU Unshielded
Twisted Pair (UTP)

AUI to Mini MAU Thin Coax

❏
❏

AUI to Mini MAU Fiber

The Mini MAUs are compatible with any
Ethernet device that has an AUI Ethernet
port.

❖

Note:

They are also designed to
slide into the recessed MAU slots of
the AsantéHub 2072 repeater mod­ules.

❖

Mini MAU

Page

3

Summary of Mini MAU Features

• Standards based transceivers for
unshielded twisted pair (UTP), thin
and fiber-optic Ethernet.

• Full compatibility with IEEE 802.3
specifications for 10BaseT,
10Base2, and 10BaseFL Ethernet.

• Diagnostic LEDS

• Ability to turn HBE on or off.

• Can be used as an accessory to
AsantéHub 2072 Repeater mod­ules.

• 10BaseT Mini MAU includes
switch to enable and disable Link
Integrity, allowing for compatibil­ity with pre-10BaseT devices.

Mini MAU

Page

4

Mini MAU Media and Connectors

Mini MAU Media Connector Port

10BaseT

Mini MAU

10BaseFL

Mini MAU

10Base2

Mini MAU

Mini MAU

UTP
Unshielded
Twisted Pair

Fiber ST AUI

Thin Coax BNC AUI

Page

RJ-45 AUI

5

Switches

RJ-45 connection

Figure 1

AUI connection
(15-pin)

Six LEDs

Mini MAU for 10BaseT

Mini MAU

Page

6

Installation Mini MAU

The installation of an Asanté Mini MAU is
very simple:

1

Locate the AUI port on the
device.

The AUI is on the rear of your
hub or computer. Externally it
consists of the 15 pin AUI con­nector.

2

Connect the Mini MAU to the
AUI port.

Connect the Ethernet cable to

3

the Mini MAU.

Twisted-pair cable (10BaseT) with
Mini MAU

Connect the 10BaseT Mini
MAU to the device’s AUI port.

Plug one end of the cable into
the 10BaseT port on the Mini
MAU.

Mini MAU

Page

7

Switches

Figure 2

AUI connection
(15-pin)

Six LEDs

BNC connection

Mini MAU for Thin Ethernet

Mini MAU

Page

8

Thin cable (10Base2) with Mini
MAU

Connect the 10Base2 Mini
MAU to the device’s AUI port.

Before the 10Base2 Mini MAU

is connected to the thin Ether­net cable, there may be a
straight-through (barrel) BNC
connector in the cable at the
location where a node connec­tion is available.

Simply remove the barrel con­nector, and
nector to the BNC port on the
Mini MAU. The connector
slips on, twists, and locks in
place.

Note:

❖

trator before disconnecting cable. Other
users must be warned of the interruption
of network operations. Even if the network
uses self-terminating media or connectors,
users downstream from the break will be
affected.

Check with your network adminis-

❖

onnect a “T” con-

c

Mini MAU

Page

9

Switches

Fiber connection

AUI connection
(15-pin)

Fiber connection

Six LEDs

Mini MAU

Figure 3

Page

Mini MAU for Fiber

10

Fiber

Connect the 10BaseFL Mini
MAU to the device’s AUI port.

Connect the Mini MAU fiber
connector to the fiber cable
with ST connectors.

❖

Note:

Check with your network adminis­trator before disconnecting cable. Other
users must be warned of the interruption
of network operations. Even if the network
uses self-terminating media or connectors,
users downstream from the break will be
affected.

❖

Mini MAU

Page

11

LEDs and Switches for the Mini
MAU

Mini 10BaseT MAU LED Display

LED Color Status

Power on Green MAU ON

receiving power
from AUI

Link Green ON Link OK

OFF Link failed

Receive Green ON

MAU is receiving

Transmit Green ON

MAU is transmitting

Polarity Yellow ON

MAU polarity is
reversed

Collision Yellow ON

Collision on Net­work

Mini MAU

Page

12

Switches for 10BaseT MAU

There are three switches on the side on the
10BaseT Mini MAU.The default settings for
the switches are identified below.

Heartbeat Enable (HBE)func-

❏

tion disabled.

(1, switch UP)

Link Test (LNK) enabled

❏

(1, switch UP)

❏

Polarity Correction (POL)
enabled

(1, switch UP)

HBE Switch

If this switch is enabled a short burst of col­lision signal, (heartbeat) is transmitted
from MAU to the device it’s connected to
after every packet is transmitted. It is also
referred to as the SQE (Signal Quality Error
test).

By default the HBE function is disabled the
DIP switch is set to the “UP” (1) position.

Mini MAU

Page

13

❖

Note: If the MAU is used with a hub
or repeater this switch should be
disabled.

Link Integrity Enabled Test Switch

This switch is normally enabled to verify
cable link. This switch can be disabled to
work with non-10BaseT compliant
repeaters and hubs.

Polarity Correction

This switch, when enabled, inverts the
polarity of a signal automatically if a
received signal has reverse polarity. Wir­ing problems cause reverse polarity.

❖

Note

AsantéHub leave the Polarity Cor­rection Switch enabled.

❖

: If you use the MAU with an

❖

Mini MAU

Page

14

AUI connection
(15-pin)

10 Base F MAU

Figure 4

Hub

Fiber connector

10 Base F network

Mini MAU Fiber to hub

Mini MAU

Page

15

Mini 10BaseFL MAU

LED Color Status

Power on Green MAU ON

receiving power
from AUI

Link Green ON Link OK

OFF Link failed

Receive Green ON

MAU is receiving

Transmit Green ON

MAU is transmitting

Jabber Yellow ON

Transceiver stops
transmitting due to
a packet transmis­sion exceeding
more than 20 ms.

Collision Yellow ON

Collision on Net­work

Mini MAU

Page

16

Switches for 10Base-F MAU

The default settings are identified below:

❏

Loopback Test Switch
enabled.

(1, switch UP)

❏

HBE Switch disabled.

(1, switch UP)

The default settings are Loopback switch
enabled and HBE Switch disabled.

Loopback Test Switch

When this switch is enabled the AUI trans­mit pair data is looped back to the AUI
receiver pair. This test can be used for trou­bleshooting to determine if the returned
signal is the same as the transmitted sig­nal.

This switch can be disabled.

HBE Switch

The HBE of the Mini 10BaseFL can be dis­abled by setting the DIP switch to the “UP”
(1) position.

Mini MAU

Page

17

AUI connector

Figure 5

Macintosh

Five LEDs

Mini MAU 10Base2

Thin Ethernet network

Mini MAU Thin Ethernet to

Macintosh

Mini MAU

Page

18

Mini 10Base2 MAU

LED Color Status

Power ON Green MAU ON

receiving power
from AUI

HBE ON Green ON HBE is ON

Switch set to
“Down” (0) posi­tion.

Receive Green On

MAU is receiving or
transmitting

Transmit Green ON

MAU is transmitting

Jabber Yellow ON

Transceiver stops
transmitting due to
a packet transmis­sion exceeding
more than 20 ms.

Collision Yellow ON

Collision on Net­work

Mini MAU

Page

19

Switches for 10Base2 MAU

The default settings are identified below:

❏

Termination disabled

(1, switch UP)

❏

HBE disabled

(1, switch UP)

Termination

The Mini 10Base2 MAU has a built-in
50ohm termination resistor. This is useful if
the user does not have a terminator. If
enabled the switch is in the “Down” (0)
position and the 50 ohm termination is
connected across the BNC.

HBE

The HBE can be disabled on the Mini
10Base2 MAU by setting the DIP switch to
the “UP” (1) position. This is the default
setting.

Mini MAU

Page

20

❖

Note

: All Asanté MAUS attached to
a hub or repeater should have HBE
disabled. For example, if the Mini
MAU is attached to an AsantéHub
1012 or 2072.

❖

Installing a Mini MAU for the
AsantéHub 2072

To install an Asanté Mini MAU into the
recessed port on the double-slotted
AsantéHub 2072 do the following:

1

Unscrew the two ejector
screws on each side of the
module’s front panel and pull
out the module approximately
four to five inches from the
chassis.

2

Remove the Mini MAU’s filler
plate on the AsantéHub.

Mini MAU

Page

21

3 Insert the Mini MAU by hand-

guiding it into its recessed slot
until the MAU is securely fas­tened to it’s connector.

4 Re-insert the module into the

chassis.

Mini MAU Page 22

Specifications Mini MAU

Power

❏ 120mA@ 11-16VDC from the

Ethernet device AUI.

Environmental

❏ 1 to 50 C

Dimensions

❏ 3.35”x 1.65” x 0.8”

Mini MAU Page 23