Symbol Technologies MRC-921 User Manual

MRC-921 MircoBase

User’s Guide

On December 1, 2000 Symbol T echnologies, Inc. completed the purchase
of Telxon Corporation. References made throughout this document to
"Telxon" or "Telxon Corporation" are be replaced with "Symbol" or
"Symbol Technologies, Inc.", respectively. Any questions, contact your
Symbol representative.

© 2000 by Symbol Technologies, Inc. All rights reserved.

No part of this publication may be reproduced or used in any form, or by any electrical or
mechanical means, without permission in writing from Symbol. This includes electronic or
mechanical means, such as photocopying, recording, or information storage and retrieval
systems. The material in this manual is subject to change without notice.

Symbol reserves the right to make changes to any software or product to improve reliability,
function, or design.

Symbol does not assume any product liability arising out of, or in connection with, the
application or use of any product, circuit, or application described herein.

No license is granted, either expressly or by implication, estoppel, or otherwise under any
Symbol Technologies, Inc., intellectual property rights. An implied license only exists for
equipment, circuits, and subsystems contained in Symbol products.

Symbol is a registered trademark of Symbol Technologies, Inc. Other product names
mentioned in this manual may be trademarks or registered trademarks of their respective
companies and are hereby acknowledged.

Symbol Technologies, Inc.
One Symbol Plaza
Holtsville, New York 11742-1300

http://www.symbol.com

Symbol Support Center: 1-800-653-5350

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MRC-921 MicroBase

User’s Guide

MRC-921 MicroBase

User’s Guide

Part Number: 18467-701-01
Release Date: 4/19/95

Telxon is a registered trademark of Telxon
Corporation.

The information contained in this manual is subject
to chang e without notice.

Telxon Corporation shall not be liable for technical or
editorial omissions or mistakes in this manual nor
shall it be liable for incidental or consequential
damages resulting from your use of the information
contained in this manual.

This manual is copyrighted. All rights are reserved.
No part of this manual may be photocopied or
reproduced in any form without the prior written
consent of Telxon.

© Copyright 1995 Telxon Corporation
All Rights Reserved.

Contents

Regulations

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

FCC statement . . . . . . . . . . . . . . . . . . . . . . . 6

FCC regulations . . . . . . . . . . . . . . . . . . . . . . . 6

DOC statement . . . . . . . . . . . . . . . . . . . . . . . 7

Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Using the radio . . . . . . . . . . . . . . . . . . . . . . . 8

Disposing of nickel-cadmium batteries . . . . . . . . . . . 9

Scope of the manual . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Document conventions . . . . . . . . . . . . . . . . . . . 10

Cautions . . . . . . . . . . . . . . . . . . . . . . . . . 10

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Related publications . . . . . . . . . . . . . . . . . . . . . 10

Overview of the MRC-921 MicroBase . . . . . . . . . . . . . . . . . . . 11

Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Unpacking the MRC-921 . . . . . . . . . . . . . . . . . . 12

Connecting the external antenna (if ordered) . . . . . . . 12

Supplying power to the MRC-921 . . . . . . . . . . . . . 13

Running the power-on self test . . . . . . . . . . . . . . . 13

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

MicroRadio . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Recharging battery packs . . . . . . . . . . . . . . . . . . . . . . . . 17

Connecting the MRC-921 to a host . . . . . . . . . . . . . . . . . . . . 19

Connecting to the host’s serial port . . . . . . . . . . . . . 19

4

Configuring the MRC-921 . . . . . . . . . . . . . . . . . . . . . . . . 20

Communicating data

Maintaining the MRC-921

Operating conditions . . . . . . . . . . . . . . . . . . . . . 22

Handling the MRC-921 . . . . . . . . . . . . . . . . . . . 22

Storing the MRC-921 . . . . . . . . . . . . . . . . . . . . 23

Cleaning the MRC-921 . . . . . . . . . . . . . . . . . . . 23

Servicing the MRC-921 . . . . . . . . . . . . . . . . . . . 23

. . . . . . . . . . . . . . . . . . . . . . . . . . 21

. . . . . . . . . . . . . . . . . . . . . . . . 22

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

LEDs remain on after the power-on self test . . . . . . . . 24

The red LED for the PTC does not light . . . . . . . . . . 24

The red LED for the spare battery pack does not light . . 24

Both LEDs for the PTC are blinking . . . . . . . . . . . . 25

Both LEDs for the spare battery pack are blinking . . . . 25

The battery pack in the PTC or spare battery bay

takes too long to recharge . . . . . . . . . . . . . . . . . 25

The green LED for the PTC never lights . . . . . . . . . . 26

The green LED for the spare battery pack never lights . . 26

Other problems . . . . . . . . . . . . . . . . . . . . . . . 26

Appendix A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Specifications . . . . . . . . . . . . . . . . . . . . . . . . 27

Communication . . . . . . . . . . . . . . . . . . . . . 27

Electrical . . . . . . . . . . . . . . . . . . . . . . . . . 27

Environmental . . . . . . . . . . . . . . . . . . . . . . 27

Physical . . . . . . . . . . . . . . . . . . . . . . . . . 27

Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Appendix B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Hardware part numbers . . . . . . . . . . . . . . . . . . . 29

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5

Regulations

FCC statement

This equipment has been tested and found to comply
with the limits for a Class A digital device, pursuant
to Part 15 of the Federal Communications
Commission (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 this user’s
guide, may cause harmful interference to radio
communications. Operation of this equipment in a
residential area is likely to cause harmful
interference, in which case users will be required to
correct the interference at their own expense.

The MicroRadio in the MRC-921 MicroBase
fully complies with FCC Part 15.249 limits for
intentional radiation as well as FCC Part 15.209
for unintentional emissions.

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FCC regulations

The MRC-921 MicroBase uses radios (transceivers)
and radio communication in its operation. The
MRC-921 is a low-power transceiver operating under
FCC Part 15.249. No license is required for operation.

6

DOC statement

This digital apparatus does not exceed the Class A
limits for radio noise emissions from digital
apparatus as outlined in the Radio Interference
Regulations of the Canadian Department of
Communications (DOC) .

The MRC-921 MicroBase’s MicroRadio is also
approved for use in Canada. No license is required for
operation.

This device complies with RSS-210 of Industry and
Science Canada. Operation is subject to the following
two conditions: (1) this device may not cause
interference, and (2) this device must accept any
interference, including interference that may cause
undesired operation of the device.

7

Safety information

2

Using the radio

The FCC with its action in General Docket 79-144,
March 13, 1985, has adopted a safety standard
for human exposure to radio frequency (RF)
electromagnetic energy emitted by FCC regulated
equipment. Telxon subscribes to the same safety
standard for the use of its products. Proper operation
of this radio will result in user exposure substantially
below the FCC recommended limits.

Do not hold any component containing a radio such

•

that the antenna is very close to, or touching,
exposed parts of the body, especially the face or
eyes, while transmitting. Hold such a component 6
inches (15.2 centimeters) or more from your face.

Do not allow children to play with any radio

•

equipment containing a transmitter.
Do not operate a portable transmitter near

•

unshielded electrical blasting caps or in an
explosive atmosphere unless it is a type especially
qualified for such use.

Do not turn on the MRC-921 MicroBase or attempt

•

to transmit data unless the antenna is attached; if
the antenna is not attached, the radio module may
be damaged.

8

Disposing of nickel-cadmium batteries

Nickel-cadmium batteries contain chemically active
materials that are hazardous to the environment;
therefore, they must be disp osed of properly. Never
attempt to incinerate a nickel-cadmium battery;
doing so could cause it to explode. Telxon urges you
to contact t h e En v i ro n me nt a l Pr ot ec ti o n Ag ency, the
Department of Natural Resources, a local hazardous
waste disposal agency, or the Telxon Customer
Support Center for assistance prior to disposing of
your nickel-cadmium batteries.

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Scope of the manual

This manual provides general information on the
MRC-921 MicroBase’s parts, features, and
accessories. It also explains how to operate and
maintain the cradle.

Document conventions

Cautions

Cautions indicate potential damage to equipment.
They are set off in the left-hand columns of this
manual by the following symbol: !.

Notes

Notes provide supplementary information. They are
set off in the left-hand columns of this manual and
are not preceded by a symbol.

3

Refer to Appendix B for a list of
manuals and their part numbers.

Related publications

The following manuals may be helpful as you operate
the MRC-921 MicroBase:

• MRC-921 Technical Reference, which contains

configuration information

• PTC-921 User’s Guide

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