Symbol Technologies LA3021-100 LA3021-100 WLAN PC Card User Manual
Symbol Technologies Inc LA3021-100 WLAN PC Card Users Manual
Contents
Users Manual

Spectrum24
Wireless LAN Adapter
Models 3020 PC Card &
3025 ISA Adapter
Product Reference Guide
70-20505-01
October 1998

ii Spectrum24 Wireless LAN Adapter User Guide
Copyright
Copyright © 1998 by Symbol Technologies, Inc. All rights reserved.
No part of this publication may be modified or adapted in any way, for any purposes without permission in writing from Symbol. 
The material in this manual is subject to change without notice.
Symbol reserves the right to make changes to any product to improve reliability, function, or design.
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, the Symbol logo and Spectrum24 are registered trademarks 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.
Novell and LAN Workplace are registered trademarks of Novell Inc.
Patents
This product is covered by one or more of the following U.S. and foreign Patents: 
U.S. Patent No.4,360,798; 4,369,361; 4,387,297; 4,460,120; 4,496,831; 4,593,186; 4,603,262; 4,607,156; 
4,652,750; 4,673,805; 4,736,095; 4,758,717; 4,816,660; 4,845,350; 4,896,026; 4,897,532; 4,923,281; 4,933,538; 
4,992,717; 5,015,833; 5,017,765; 5,021,641; 5,029,183; 5,047,617; 5,103,461; 5,113,445; 5,130,520 5,140,144; 
5,142,550; 5,149,950; 5,157,687; 5,168,148; 5,168,149; 5,180,904; 5,229,591; 5,230,088; 5,235,167; 5,243,655; 
5,247,162; 5,250,791; 5,250,792; 5,262,627; 5,262,628; 5,266,787; 5,278,398; 5,280,162; 5,280,163; 5,280,164; 
5,280,498; 5,304,786; 5,304,788; 5,306,900; 5,321,246; 5,324,924; 5,337,361; 5,367,151; 5,373,148; 5,378,882; 
5,396,053; 5,396,055; 5,399,846; 5,408,081; 5,410,139; 5,410,140; 5,412,198; 5,418,812; 5,420,411; 5,436,440; 
5,444,231; 5,449,891; 5,449,893; 5,468,949; 5,471,042; 5,478,998; 5,479,000; 5,479,002; 5,479,441; 5,504,322; 
5,519,577; 5,528,621; 5,532,469; 5,543,610; 5,545,889; 5,552,592; 5,578,810; 5,581,070; 5,589,679; 5,589,680; 
5,608,202; 5,612,531; 5,619,028; 5,664,229; 5,668,803; 5,675,139; 5,693,929; 5,698,835; 5,705,800; 5,714,746; 
5,723,851; 5,734,152; 5,734,153; 5,745,794; 5,754,587; 5,658,383; D305,885; D341,584; D344,501; D359,483; 
D362,453; D362,435; D363,700; D363,918; D370,478; D383,124; D391,250.
Invention No. 55,358; 62,539; 69,060; 69,187 (Taiwan); No. 1,601,796; 1,907,875; 1,955,269 (Japan).
European Patent 367,299; 414,281; 367,300; 367,298; UK 2,072,832; France 81/03938; Italy 1,138,713.
Symbol Technologies, Inc.
One Symbol Plaza
Holtsville, N.Y. 11742-1300
Telephone:(800)SCAN234/(516)738-2

Spectrum24 Wireless LAN Adapter User Guide iii
Regulatory Addendum
Congratulations on your purchase of this Symbol Technologies product. It is manufactured to the highest standards to
ensure trouble-free operation and durability. In order to comply with various U.S. and International regulatory requirements, we 
have included this addendum with your product. It is an all-encompassing document that applies to the complete line of 
Symbol products. Therefore, many of the labels shown, and statements indigenous to other devices may not apply to your 
particular product.
Radio Frequency Interference Requirements
This device has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the Federal 
Communications Commissions Rules and Regulation. 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 his own expense.
However, there is no guarantee that interference will not occur in a particular installation. If the 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:
•Re-orient 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 which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
Radio Frequency Interference Requirements - 
Canada
This Class A digital apparatus meets the requirements of the Canadian Interference-Causing Equipment Regulations.
CE Marking and European Union Compliance
Products intended for sale within the European Union are marked with the CEMark which indicates compliance 
to applicable Directives and European Normes (EN), as follows. Amendments to these Directives or ENs are 
included: Normes (EN), as follows.
Applicable Directives:
•Electromagnetic Compatibility Directive 89/336/EEC
•Low Voltage Directive 73/23/EEC
Applicable Standards:
•EN 55 022 - Limits and Methods of Measurement of Radio Interference Characteristics of Information
technology Equipment
•EN 50 082-1 - Electromagnetic Compatibility - Generic Immunity Standard, Part 1: Residential, commercial,
Light Industry

iv Spectrum24 Wireless LAN Adapter User Guide
•IEC 801.2 - Electromagnetic Compatibility for Industrial Process Measurement and Control Equipment Part 2: 
Electrostatic Discharge Requirements
•IEC 801.3 - Electromagnetic Compatibility for Industrial Process Measurement and Control Equipment Part 3: 
Radiated Electromagnetic Field Requirements
•IEC 801.4 - Electromagnetic Compatibility for Industrial Process Measurement and Control Equipment Part 4: Electrical 
Fast Transients Requirements
•EN 60 950 + Amd 1 + Amd 2 - Safety of Information Technology Equipment Including Electrical Business Equipment
•EN 60 825-1 (EN 60 825) - Safety of Devices Containing Lasers 
RF Devices
Symbol’s RF products are designed to be compliant with the rules and regulations in the locations into which they are sold and 
will be labeled as required. The majority of Symbol’s RF devices are type approved and do not require the user to obtain license 
or authorization before using the equipment. Any changes or modifications to Symbol Technologies equipment not expressly 
approved by Symbol Technologies could void the user’s authority to operate the equipment.
Telephone Devices (Modems) - United States
If this product contains an internal modem it is compliant with Part 68 of the Federal Communications Commission Rules and 
Regulations and there will be a label on the product showing the FCC ID Number and the REN, Ringer Equivalence Number.   
The REN is used to determine the quantity of devices which maybe connected to the telephone line. Excessive RENs on the 
telephone line may result in the device not ringing in response to an incoming call. In most but not all areas, the sum of the 
RENs should not exceed 5.0. To be certain of the number of devices that may be connected to the line, as determined by the 
total number of RENs, contact the telephone company to determine the maximum REN for the calling area.
If the modem causes harm to the telephone network, the telephone company will notify you in advance; however, if advance 
notice is not practical, you will be notified as soon as possible. Also, you will be advised of your right to file a complaint with the 
FCC if you believe it is necessary.
The telephone company may make changes in its facilities, equipment, operations or procedures that could affect the operation 
of the modem. If this happens the telephone company will provide advance notice so you may make any necessary 
modifications to maintain uninterrupted service.
Telephone Devices (Modems) - Canada
If this product contains an internal modem it is compliant with CS-03 of Industry Canada and there will be a Canadian 
certification number (CANADA: ____) on a label on the outside of the product. This certification means that the equipment 
meets certain telecommunications network protective, operational and safety requirements. The Department does not 
guarantee the equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local 
telecommunications company. The equipment must also be installed using an acceptable method of connection. In some 
cases, the company’s inside wiring associated with a single-line, individual service maybe extended by means of a certified 
convector assembly (telephone extension cord). The customer should be aware that compliance with the above conditions may 
not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any 
repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the telecommunications 
company cause to request the user to disconnect the equipment.
User should ensure for their own protection that the electrical ground connections of the power utility, telephone lines and 
internal metallic water pipe system, if present, are connected together. This precaution may be particularly important in
rural areas.
CAUTION: User should not attempt to make such connections themselves, but should contact the appropriate electric inspection 
authority, or electrician, as appropriate.
The Load Number (LN) assigned to each terminal device denotes the percentage of the total load to be connected to the 
telephone loop which is used by the device, to prevent overloading. The termination of a loop may consist of any combination 
of devices, subject only to the requirement that the total of the Load Numbers of all devices not exceed 100.

Spectrum24 Wireless LAN Adapter User Guide v
The Load Number is located on a label on the product.
Contact your local Symbol Technologies, Inc., representative for service and support;
Symbol Technologies, Inc.,
Canadian Sales and Service
2540 Matheson Boulevard East
Mississauga, Ontario
Canada L4W 4Z2
Phone - 905 629 7226
Laser Devices
Symbol products using lasers comply with US 21CFR1040.10, Subchapter J and IEC825/EN 60 825 (or IEC825-1/EN 60 
825-1, depending on the date of manufacture). The laser classification is marked one of the labels on the product.
Class 1 Laser devices are not considered to be hazardous when used for their intended purpose. The following statement is 
required to comply with US and international regulations:
CAUTION: Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous 
visible or invisible laser light exposure.
Class 2 laser scanners use a low power, visible light diode. As with any very bright light source, such as the sun, the user should 
avoid staring directly into the light beam. Momentary exposure to a Class 2 laser is not known to be harmful.
Laser information labels are found in the product Quick Reference Guide.

vi Spectrum24 Wireless LAN Adapter User Guide

Spectrum24 Wireless LAN Adapter User Guide vii
About This Document
Reference Documents
This Reference Guide refers to the following documents:   
RFC’s (Request For Comments) may be found on the Web at: http://www.ctrl-
c.lin.se/ftp/DOC/RFC.
Conventions
Terminal text is depicted as shown on a 4140 terminal screen.
Keystrokes are indicated as follows:    
Typeface conventions used include.
Part Number Document Title
70-20135-02 Single High Performance Antenna (ML-2499-HPA1-00/
Twin High Performance Diversity Antenna (ML-2499-DVA 
1-00)
70-20136-01 Mountable F-Plane Antenna (ML-2499-DSA1-00)
70-20137-02 Universal Acess Point Wall Bracket (ML-2499-APB1-00)
ENTER identifies a key.
FUNC, CTRL, C identifies a key sequence. Press and release each key
in turn.
Press A+B means to press the indicated keys simultaneously.
Hold A+B means to hold down the indicated keys. Used in 
combination with another keystroke.
<angles> indicates mandatory parameters in a given syntax.
[brackets] for command line, indicates available parameters; in 
configuration files brackets act as separators for options.
Italics indicates the first time a term is used, a book title, 
information to be replaced by an actual value, and
menu titles.

viii Spectrum24 Wireless LAN Adapter User Guide
This manual uses the following for certain conditions or types of information:
Indicates tips or special requirements.
Indicates conditions that can cause equipment damage or 
data loss.
Indicates a condition or procedure that is potentially 
dangerous.  Only qualified, Symbol-trained personnel 
should attempt to correct or perform.
Special Definitions:
Screen is the device on a terminal where the terminal shows data. 
A display is an arrangement of data on a screen.
‘single quotes’ indicates the exact setting for a parameter.
Screen indicates monitor screen dialog. Also indicates user input.
Terminal indicates text shown on a radio terminal screen.

Spectrum24 Wireless LAN Adapter User Guide ix
Customer Support
Symbol Technologies is committed to providing its customers with World 
Class Customer Service and Technical Support. The Symbol Support Center 
is the single point of contact for any technical problem, question or
support issue.
The Support Center is operational 365 days a year, 24 hours a day, staffed 
by full-time professional Technical Specialists.
If Symbol Technical Specialists cannot solve the problem immediately within 
its tiered technical support center, access to all technical disciplines within 
Symbol become available for further assistance and support. First
response/contact within 24 hours or one business day. Response by email, 
fax or telephone.
North American Contacts
Inside North America, contact Symbol by:
Symbol Technologies, Inc.
One Symbol Plaza
Holtsville, New York 11742-1300
Telephone: 1-516-738-2400/1-800-SCAN 234
Fax: 1-516-738-5990 
•Symbol Support Center: 
– telephone: 1-800-653-5350
– fax: (516) 563-5410
– Email: support@symbol.com
– International Contacts

x Spectrum24 Wireless LAN Adapter User Guide
Outside North America, contact Symbol by:
Symbol Technologies Technical Support
12 Oaklands Park
Berkshire, RG41 2FD, United Kingdom
Tel: 011-44-118-945-7000 or 1-516-738-2400 ext. 6213
Additional Information
Obtain additional information by contacting Symbol at:
•1-800-722-6234, inside North America 
•+1-516-738-5200, in/outside North America
•http://www.symbol.com/

Contents
Spectrum24 Wireless LAN Adapter Product Reference Guide  xi
Chapter 1 Introduction............................................... 1
Chapter 2 Wireless LAN Adapter ............................... 3
2.1 MU Mode Operation ........................................4
2.2 MicroAP Mode Operation .................................5
2.3 1 and 2 Mbps Operation ..................................6
2.4 Mobile IP (roaming across routers) Description ..8
2.5 Power Management .........................................8
2.6 Card and Socket Services..................................9
2.7 Plug and Play ...................................................9
2.8 Spectrum24 Adapter LED Descriptions ..............9
Chapter 3 System Software Supported ..................... 11
Chapter 4 Hardware Installation.............................. 13
4.1 Preparation ....................................................13
4.2 Installing the PC Card.....................................13
4.3 End-Cap Antenna Installation .........................16
4.4 End-Cap Antenna Removal.............................16
4.5 Installing the WLAN ISA Adapter.....................18
4.5.1 External Antenna Connection ...............19
Chapter 5 Firmware Update..................................... 21
5.1 Verifying The Firmware Version.......................21
Chapter 6 Windows 95/NT Driver Installations ........ 23
6.1 Windows 95 Driver  Introduction.....................23
6.2 New Features For v4.00 .................................24
6.3 Current Features in Windows 95.....................24
6.4 Windows 95 Driver/Transport Updates............24
6.5 Windows 95 Driver And Transport Uninstall 
(Version 4.00 Or Earlier).......................................25
6.6 Windows 95 Driver Installation .......................26

 xii Spectrum24 Wireless LAN Adapter Product Reference Guide
6.6.1 Preparation ..........................................26
6.7 Windows 95 Retail Version .............................26
6.8 Windows 95 OSR2 Version .............................27
6.9 Windows 95 Setup .........................................29
6.10 Configuration...............................................30
6.11 Windows NT 4.0/3.51 Driver Introduction.....31
6.12 New Features For v4.00 ...............................32
6.13 Current Features For NT...............................32
6.14 Current Limitations For NT............................33
6.15 Workstation/Server Primary Installation.........33
6.15.1 Preparation........................................33
6.16 Windows NT 4.0...........................................34
6.17 Windows NT 3.51.........................................36
6.18 First Time Network Installation......................38
6.19 Windows NT 4.0...........................................38
6.20 Windows NT 3.51.........................................40
6.21 Existing Network Installation.........................43
6.22 Windows NT 4.00.........................................44
6.22.1 Windows NT 3.51...............................46
6.23 Windows NT Driver Update ..........................49
6.24 Windows NT 4.0...........................................49
6.25 Windows NT 3.51.........................................50
6.25.1 Network Adapter Configuration..........50
6.26 Windows NT 4.00.........................................50
6.27 Windows NT 3.51.........................................51
Chapter 7 DOS/Windows For Workgroups Driver
Installation............................................53
7.1 Preventing Memory Range Conflicts ................53
7.2 Spectrum24 Automated Driver Installation ......54
7.3 NDIS Manual Installation................................55
7.4 Modifying Config.sys ......................................56

Spectrum24 Wireless LAN Adapter Product Reference Guide  xiii
7.5 Modifying Autoexec.bat ..................................56
7.6 Modifying Protocol.ini.....................................57
7.7 ODI Manual Installation .................................57
7.8 Modifying Autoexec.bat ..................................58
7.9 Modifying Net.cfg...........................................58
7.10 Keyword usage.............................................59
7.11 Enabling Plug and Play .................................59
7.12 Enabling CardServices ..................................60
7.13 Windows for Workgroups (v3.11) ..................62
7.14 Installing The Driver .....................................62
Appendix A Windows 95 Network Configuration
Properties ............................................A 1
Appendix B Windows NT Network Configuration
Parameters .......................................... B 1
Appendix C Windows NT/95
Utilities Setup ......................................C 1
C.1 Windows NT 4.0 and Windows 95
S24INFO .....................................................C 1
C.1.1 Preparation......................................... C 1
C.1.2 Installing S24INFO.............................. C 1
C.1.3 Starting S24INFO................................ C 2
C.1.4 Uninstalling S24INFO ......................... C 2
C.2 Windows NT 3.51 S24INFO...................C 2
C.2.1 Preparation......................................... C 2
C.2.2 Installing S24INFO.............................. C 3
C.2.3 Starting S24INFO................................ C 3
C.2.4 Uninstalling S24INFO ......................... C 3
C.3  Windows NT 4.0 and Windows 95
S24UTIL.......................................................C 4
C.3.1 Preparation......................................... C 4

 xiv Spectrum24 Wireless LAN Adapter Product Reference Guide
C.3.2 Installing S24UTIL ............................... C 4
C.3.3 Starting S24UTIL ................................. C 4
C.3.4 Uninstalling S24UTIL........................... C 5
C.4  Windows NT 3.51 S24UTIL ...................C 5
C.4.1 Preparation......................................... C 5
C.4.2 Installing S24UTIL ............................... C 6
C.4.3 Starting S24UTIL ................................. C 6
C.4.4 Uninstalling S24UTIL........................... C 6
C.5 Reinstalling S24UTIL or S24INFO...........C 6
C.5.1 Conversion ......................................... C 7
C.6 Windows Utilities Description.................C 7
C.7 Monitor Spectrum24 MU Mode..............C 8
C.8 Using S24INFO.....................................C 8
C.9 Statistics and Configuration Screen 
Descriptions In MU Mode...........................C 10
C.10 Statistics and Configuration Screen 
Descriptions In MAP Mode .........................C 20
C.11 S24INFO Troubleshooting Hints ........C 27
C.11.1 Symptom: Adapter
not communicating..................................... C 27
C.11.2 Symptom: Adapter associated 
but not communicating............................... C 27
C.11.3 Symptom: Out of Memory Error....... C 28
C.12 Using S24UTIL ..................................C 28
C.13 Utility Frame .....................................C 30
Appendix D Spectrum24 DOS Keywords................. D 1
Appendix E Spectrum24 DOS Utilities......................E 1
E.1 S_WFA....................................................E 1

Spectrum24 Wireless LAN Adapter Product Reference Guide  xv
E.2 S_UTIL ................................................... E 2
E.3 Examples ............................................... E 4
E.4 S_INFO.................................................. E 5
E.5 Configuration/Status.............................. E 7
E.5.1 Transmit Statistics ............................... E 10
E.5.2 AP Table (MU Mode only).................... E 11
E.5.3 Associated MU Table
(MicroAP Mode only).................................... E 11
E.5.4 Transmit And Receive Statistics Table... E 12
E.6 S_VER .................................................. E 12
E.7 S_UPDATE............................................ E 13
Appendix F WLAN Adapter Specifications ................F 1
Appendix G Roaming Across Routers/Mobile IP
Setup...................................................G 1
G.1 Roaming Across Routers And Mobile IP
Configuration ............................................. G 1
G.2 Configuring the Adapter For Mobile IP
in Windows 95............................................ G 1
G.3 Configuring the Adapter For Mobile IP
In Windows NT 4.0/3.51............................. G 2
G.4 Configuring the Adapter For Mobile IP
In DOS ....................................................... G 3
G.4.1 Preparation......................................... G 3
Appendix H Troubleshooting...................................H 1
H.1 Windows 95 Troubleshooting Tips..........H 1
H.2 Windows NT 4.0/3.51 Troubleshooting..H 2
H.2.1 Useful tools......................................... H 4

 xvi Spectrum24 Wireless LAN Adapter Product Reference Guide
H.3 Windows NT ERRORS ............................H 5
Index.....................................................Index 1

Spectrum24 Wireless LAN Adapter Product Reference Guide  1
Chapter 1 Introduction
Spectrum24 is a frequency-hopping, spread spectrum 
network that operates between 2.4 and 2.5 GHz. 
Spectrum24 operates similarly to Ethernet networks without 
a wired network infrastructure. Spread spectrum 
communication provides a high-capacity network within 
large or small environments. Interference reduction makes 
it ideal for mobile communications and real-time data 
access applications.
•Spectrum24 bridging architecture allows 
communication between wired network devices and 
mobile devices.
•Spectrum24 switchable data rates allow 1 Mbps
and 2 Mbps devices to communicate in the same 
network environment.
•Spectrum24 supports the IEEE 802.11 specification. 
This open architecture allows Spectrum 24
devices to communicate with wireless devices from 
other manufacturers.
•Spectrum24 allows mobile devices to roam 
throughout large facilities while remaining connected 
to the LAN.
•Spectrum24 allows protocol firmware upgrades while 
devices remain operational.
•Spectrum24 antenna diversity feature alternates
between antennas with the best reception, increasing 
overall performance.

Introduction
 2 Spectrum24 Wireless LAN Adapter Product Reference Guide

Spectrum24 Wireless LAN Adapter Product Reference Guide  3
Chapter 2 Wireless LAN Adapter
The Spectrum24 Wireless LAN (WLAN) adapter allows ISA 
(Industry Standard Architecture) or PC Card equipped host 
systems to configure, connect to and establish a 
Spectrum24 network. The ISA adapter version of the 
WLAN implements the Plug and Play standard. When 
installed in a system with a Plug and Play BIOS (basic input 
output system), the card requests system resources. The 
system allocates an Interrupt Request (IRQ), Input-Output 
(I/O) port and memory address range. Host systems 
without Plug and Play BIOS acquire Plug and Play 
functionality through the CSS (Card and Socket services) 
utilities that normally come bundled with system software. 
Features Include:
•Low power operation for battery-powered devices with 
PC Card slots.
•Standard NDIS (Network Driver Interface 
Specification) and ODI (Open Data-link
Interface) drivers.
•Windows 95, NT 4.0/3.51 driver support.
•Card and Socket Services support.
•Plug and Play support.
•Antenna options (molded external antenna available 
for PC Card only).
•Power management (Continuously Aware Mode or 
Power Save Polling mode)

Wireless LAN Adapter
 4 Spectrum24 Wireless LAN Adapter Product Reference Guide
2.1  MU Mode Operation
In the Mobile Unit (MU) mode, the WLAN adapter 
connects to an Access Point (AP) or another WLAN 
installed system operating in MicroAP mode. The MU 
mode allows the device to roam freely between AP
cells in the network. MUs appear as network nodes to 
other devices.

Wireless LAN Adapter
Spectrum24 Wireless LAN Adapter Product Reference Guide  5
2.2  MicroAP Mode Operation
In the MicroAP mode, the WLAN adapter performs as an 
Access Point. The Spectrum24 WLAN adapter installed in a 
PC without another network connection, establishes a 
single-cell wireless network coverage area for all 802.11 
devices in MU mode. Each MicroAP needs to have a 
unique ESS_ID. Cells can coexist as separate, individual 
networks at the same site without interference. The 
MicroAP does not roam, but it does support roaming. It 
has to operate in continuous aware mode in order to 
support CAM and PSP MUs. MUs can operate only within 
the cell established by WLAN adapter in this mode. The 
MicroAP mode supports up to 16 MUs. An Access Control 
List (ACL) containing the MU MAC addresses within the 

Wireless LAN Adapter
 6 Spectrum24 Wireless LAN Adapter Product Reference Guide
established cell allows only the specified MUs (within the 
ACL) to associate with a MicroAP. Set the MicroAP and the 
MU to the appropriate data rates to communicate. Refer to 
the MicroAP Rate Control Table for the rates. The table 
below shows the compatible data rates. The adapter is 
configured to operate in the MicroAP mode through the 
Spectrum24 Network configuration dialog screen for 
Windows 95 and the Spectrum24 NT Installation dialog in 
Windows NT (refer to the Windows NT/95 installation 
section). Configure the adapters to operate in the MicroAP 
mode by setting several keywords (refer to Appendix C) in 
the NDIS (protocol.ini) or ODI (net.cfg) configuration files.
Table 2-1: MicroAP Rate Control Table 
2.3  1 and 2 Mbps Operation 
The Spectrum24 Wireless LAN Adapter can support 1 or
2 Mbps data rates when properly configured. See table 
below for configuration dependencies and refer to the 
software configuration sections in this document for setup. 
The adapter supports a dynamically switched 1 and 2 
Mbps data rate (dynamic rate control) in a properly 
configured network environment. The MU and the Access 
Point need to be compatible (refer to the Spectrum24 
Access Point User Guide for a detailed Access Point 
Mobile Unit Micro AP (Rate Control)
Supported 
Transmit 
Rates
Base
Rate 1
Base
Rate 1,
Tx Rate 2 
(Default)
Base
Rate 1, 
Base
Rate 2
Base Rate 
2
1 1  1     N/A N/A
1 & 2 
(Default)
11 & 21 & 22
2 N/A N/A N/A 2

Wireless LAN Adapter
Spectrum24 Wireless LAN Adapter Product Reference Guide  7
configuration) to maintain network connectivity. The table 
below identifies the supported data rates of a properly 
configured MU and AP. The factors listed below can 
dynamically alter the data rate.
•signal strength between the AP and the MU
•the ratio of good transmitted packets to attempted
•transmitted packets fall below a threshold
•the MU finds a higher transmit rate with another AP or 
it encounters an unspecified data rate.
Table 2-2: AP Rate Control Table
Mobile Unit Access Point (Rate Set)
Supported 
Transmit 
Rates
1 only 1 Required, 
2 Optional
(Default)
1 and 2 
Required
2 Only
111N/AN/A
1 & 2 Default 1 Dynamic 
Rate Control
Dynamic    
Rate 
Control
2
2 N/A N/A N/A 2

Wireless LAN Adapter
 8 Spectrum24 Wireless LAN Adapter Product Reference Guide
2.4  Mobile IP (roaming across routers) Description
The Spectrum24 WLAN supports Mobile IP (roaming 
across routers) when properly configured as an MU and 
configured to support Mobile IP (refer to appendix G
for configuration and setup). Also configure an Access 
Point to properly pass through routing information. The 
MU retains its IP address when configured for Mobile IP 
and can:
•move from one IP subnet to another
•move from an Ethernet segment to a wireless LAN 
•move from one Ethernet segment to another.
2.5  Power Management
The WLAN adapter provides two power-management 
operation modes: Continuously Aware Mode (CAM) 
requires the radio to remain on. Symbol does not 
recommend CAM for battery powered devices.
A WLAN adapter operating in MicroAP mode functions in 
CAM only. The ISA adapter functions in CAM only.

Wireless LAN Adapter
Spectrum24 Wireless LAN Adapter Product Reference Guide  9
Power Save Polling (PSP) mode allows the MU to conserve 
power by suspending communication while still associated 
with an AP. The AP saves data for the MU, which wakes at 
given intervals to check for data. The WLAN adapter 
drivers support dynamic power management, Algorithm 
11 and 12 (refer to Appendix A for usage). Algorithm 11 
varies the PSP parameter between 1 and 10 depending on 
data traffic. Algorithm 12 switches the LAN adapter from 
PSP mode to CAM, also depending on data traffic.
2.6  Card and Socket Services
The Spectrum24 WLAN adapter supports Card and Socket 
services. In a DOS environment the WLAN adapter can 
use Spectrum24 automatic configuration, hot insertion, 
removal and power management features. Card and 
Socket Service software packages providing these
features include SystemSoft, CardSoft or CardWizard
(not included).
The WLAN adapter supports Card and Socket Services 
native to Microsoft Windows 95 but not  in Windows NT.
2.7  Plug and Play
The Spectrum24 WLAN card Model 3020(PC Card) and 
Model 3025 (ISA adapter) support Plug and Play systems. 
This allows the PC to automatically recognize the WLAN 
adapter, and configure the hardware interrupt, memory 
and I/O addresses. This feature requires less user 
interaction and minimizes hardware conflicts.
2.8  Spectrum24 Adapter LED Descriptions

Wireless LAN Adapter
 10 Spectrum24 Wireless LAN Adapter Product Reference Guide
The WLAN adapter LEDs illuminate during connection
or data transfer to indicate the functional status of the 
WLAN adapter. 
PC Cards without end-cap antennas lack LEDs.
LEDs Mode LED Function
Associated As MicroAP The LED flashes to indicate a 
powered MicroAP accepting 
MUs. 
As MU A solid LED indicates association 
with an AP. 
Activity As MicroAP A solid LED indicates data traffic 
between the MicroAP and MU.
  As MU A solid LED indicates 
communication with the AP.

Spectrum24 Wireless LAN Adapter Product Reference Guide  11
Chapter 3 System Software 
Supported
Spectrum24 WLAN adapters include drivers and 
applications that support:
•Microsoft Windows 95
•Microsoft Windows NT 3.51 or 4.0
•DOS 3.3 or higher
•Microsoft Windows for Workgroups (v3.11)
•Novell Workplace v4.xx for DOS
•Novell Netware Client v2.x
•FTP PC/TCP v4.xx

System Software Supported
 12 Spectrum24 Wireless LAN Adapter Product Reference Guide

Spectrum24 Wireless LAN Adapter Product Reference Guide  13
Chapter 4 Hardware Installation
Physical installation for the PC Card and ISA versions differ 
for each system. Refer to the system manufacturer 
documentation for specific information. Software 
installation requires that the Installation and Utilities 
diskette accompany the user guide. 
4.1  Preparation
Before beginning the installation verify the hardware 
package contains:
•Spectrum24 Wireless LAN Adapter 
•plane antenna (for ISA adapter)
•end-cap antenna (for PC Card)
•installation diskette and utilities.
Verify the model indicated on the card and packaging 
before use. Contact the Symbol Support Center if an item 
is missing or not functioning.
4.2  Installing the PC Card 
The Spectrum24 WLAN Adapter requires the following:
•a PC with a Type II PC Card slot
•a 3.5 inch floppy drive
•an available interrupt (IRQ)
•an available I/O port address
•Spectrum24 Driver installation Disk

Hardware Installation
 14 Spectrum24 Wireless LAN Adapter Product Reference Guide
•an available upper memory range of 4Kb if setting up 
for I/O mode
•an available upper memory range of 32Kb for setting 
up memory mode
•a compatible Spectrum24 antenna
•10 to 16Kb available conventional or upper memory 
space (terminate and stay resident driver only; does 
not include network protocol stack).
Installation and removal methods vary for different host 
devices. Refer to system documentation for information. 
Avoid contact with liquids or abrasive materials.
1. Insert the PC Card into the PC slot. Arrows on the front 
of the PC Card indicate the insertion point to the slot. 
Slide it in until firmly seated.

Hardware Installation
Spectrum24 Wireless LAN Adapter Product Reference Guide  15
Align the card properly when inserting. Forcing the card 
into the slot can damage the device or the card.
Keep the area around the end-cap antenna clear from 
materials that could block radio transmission (i.e. 
concrete, metals, and electrical systems). Inadequate 
coverage can reduce network performance.
The end-cap antenna is available only for the PC
Card Model.

Hardware Installation
 16 Spectrum24 Wireless LAN Adapter Product Reference Guide
4.3  End-Cap Antenna Installation
To attach the end-cap antenna to the Spectrum24 PC 
Card, grasp the PC Card at its end nearest the antenna 
connector. Line up the antenna connectors with the PC 
Card connectors. Keep antenna in line with the PC Card.
Tilting the antenna while trying to install or remove it can 
cause the connectors to misalign and break. 
Firmly press the antenna to the PC Card. A soft click 
indicates the connectors have connected. Verify the PC 
Card and antenna ends are flush.
4.4  End-Cap Antenna Removal
To remove the end-cap antenna, grasp the PC Card at
its end nearest the antenna connector. Grasp the antenna
at the end nearest the PC Card in the center above
the connectors.

Hardware Installation
Spectrum24 Wireless LAN Adapter Product Reference Guide  17
Do not press the buttons at the edges. They automatically 
open. 
Firmly pull the antenna from the PC Card. Keep the end-
cap in line with the PC Card. 
Tilting the antenna while trying to install or remove it can 
cause the connectors to misalign and break. 
To ensure a reliable connection, attach the end-cap 
antenna and PC Card connectors very securely. The 
antenna connection to the card is stronger than the PC 
Card connection in the host computer. Pulling the antenna 
removes the PC Card from the computer without 
disconnecting the antenna from the PC Card.
Flexing or tilting the antenna after attaching it to
the PC Card can break the antenna and/or the PC
Card connectors.

Hardware Installation
 18 Spectrum24 Wireless LAN Adapter Product Reference Guide
4.5  Installing the WLAN ISA Adapter
Use proper grounding for the environment when handling 
computer components.
Symbol does not support this adapter yet under Windows 
NT. This card runs in CAM only.
1. Power off the computer before installing the adapter.
2. If the system already has a PCMCIA adapter installed, 
the WLAN adapter can function as a second 
controller. Set the socket number, and the Plug and 
Play option in the configuration file as required (refer 
to Plug and Play section for configuration).
The WLAN adapter can exist only with systems using a 
Cirrus Logic 6710 or 6720 bus interface controller.

Hardware Installation
Spectrum24 Wireless LAN Adapter Product Reference Guide  19
3. Remove the computer cover.
4. Locate an available ISA slot in the computer.
5. Remove the retaining screw and bracket for the slot.
6. Align adapter with the slot and insert firmly. Verify the 
adapter seats into the slot evenly.
7. Verify that the BNC antenna connectors in the back of 
the PC are exposed.
8. Secure the adapter to the chassis with a retaining screw.
9. Replace the computer cover.
4.5.1  External Antenna Connection
The ISA version includes a plane antenna suitable for
most environments.
Install the plane antenna parallel to the ground for
optimal performance.
1. Attach antenna to the BNC antenna connector
as shown.
If using only a single antenna, attach it to the PRIMARY 
antenna connector. Ensure the antenna is parallel to
the ground.

Hardware Installation
 20 Spectrum24 Wireless LAN Adapter Product Reference Guide
2. Modify the DIVERSITY parameter in the appropriate 
configuration file as follows
Table 4-1: DOS Configuration/Parameters For Antennae
Obtain additional or higher performance antennas from 
Symbol. Contact a Symbol sales representative to order 
the following models:
Configure Diversity (for dual antennae) by selecting the 
Diversity check box from the Spectrum24 NT Installation 
properties sheet or from the Symbol Spectrum24 
Configuration properties sheet in Windows95. Refer to the 
Windows 95/NT Driver Installation sections if necessary.
NDIS ODI 
Single Diversity = N Diversity N
Dual  Diversity = Y Diversity Y
additional plane antenna ML-2499-PSA1-00
single high-performance antenna ML-2499-HPA1-00
single rubber antenna ML-2499-APA1-00

Spectrum24 Wireless LAN Adapter Product Reference Guide  21
Chapter 5 Firmware Update
Occasionally the Spectrum24 PC Card and ISA adapter 
firmware require updating for new features or performance 
improvements. Firmware updates require:
•DOS (Version 3.3 or higher) bootable disk
•Spectrum24 PC Card Installation Disk.
To update the firmware:
1. Boot the machine from a DOS-bootable disk.
2. Remove the DOS-bootable disk and insert the 
Spectrum24 ISA/PC Card Installation Disk 1.
3. Change to the \FIRMWARE sub-directory.
4. Enter the command: S_UPDATE (follow the instructions).
5. Remove the disk and restart the machine after 
S_Update is complete.
If updating an ISA Plug and Play card, load SLAINIT.EXE 
before running S_Update. Refer to the Plug and Play 
section for SLAINIT.EXE installation. Symbol does not 
support this Plug and Play ISA configuration yet under 
Windows NT.
5.1  Verifying The Firmware Version
Load SLAINIT.EXE before installing ISA Plug and Play ISA 
adapter. Refer to the Plug and Play section if necessary.
1. Boot the system to a DOS prompt.

Firmware Update
 22 Spectrum24 Wireless LAN Adapter Product Reference Guide
2. Insert the Spectrum24 ISA/PC Card Installation
Disk 1.
3. From the DOS prompt change to the \FIRMWARE
sub-directory.
4. Enter the command (refer to Appendix E for more 
information on S_VER use): S_VER.
5.  Remove the disk and restart the machine if necessary 
when S_VER is complete.

Spectrum24 Wireless LAN Adapter Product Reference Guide  23
Chapter 6 Windows 95/NT Driver 
Installations 
6.1  Windows 95 Driver  Introduction
The Spectrum24 NDIS 3.x Driver provides access to a 
Spectrum24 WLAN adapter under Windows 95. It supports 
all transport protocols (i.e. NetBEUI, IPX/SPX, TCP/IP) 
provided by Windows 95 on Spectrum24 PC Card, and 
Plug and Play ISA adapters.
The Windows 95 support includes the Spectrum24 driver, 
transport/API driver, driver extension service and the 
network card installation disk. Locate the files on the 
Spectrum24 ISA/PC Card Windows (32-bit) Installation 
disk in \WIN95, and \WINNT\I386 sub-directories. The 
distribution disk(s) contain the following files:
File Name Driver Description
SLANT.SYS Spectrum24 NDIS 3.x Driver
Version 4.x.
NETSLA.INF Spectrum24 NDIS 3.x Driver 
Installation Script.
S24EVMON.EXE Spectrum24 Driver Extension Service.
S24TRANS.VXD Spectrum24 Transport/API driver 
Version 4.x.
NETSLATR.INF Spectrum24 Transport/API driver 
Installation Script.
INSTAL95.DOC Installation Instructions (Microsoft 
Word 6.0/7.0).
INSTAL95.TXT Installation Instructions (DOS Text -
i.e. Microsoft Notepad).

Windows 95/NT Driver Installations
 24 Spectrum24 Wireless LAN Adapter Product Reference Guide
6.2  New Features For v4.00
•supports IEEE 802.11 protocol
•supports 1 and 2 Mbps transfer rates
•supports Plug and Play ISA.
Refer to the Rate Control Table in the 1 and 2 Mbps 
operation section of this document in order to set up the 
adapter rate control.
6.3  Current Features in Windows 95
•Support for Windows95.
•Support for all Windows 95 transport protocols 
(NetBEUI, IPX/SPX, TCP/IP, etc.) on both the 
Spectrum24 PC Card and ISA adapter.
•Symbol supports all Spectrum24 PC Card and ISA 
adapter firmware releases from Version 3.xx to
Version 4.xx.
•Update adapter firmware (under DOS) for new 
features or performance improvements.
•Supports Symbol Spectrum24 (Spring) protocol.
6.4  Windows 95 Driver/Transport Updates
To update existing drivers, uninstall the previous 
Spectrum24 or transport driver and reinstall
according to the Driver Installation and Transport 
Installation procedures.

Windows 95/NT Driver Installations
Spectrum24 Wireless LAN Adapter Product Reference Guide  25
Symbol supports the following procedure only for driver 
installations earlier than version 4.01. Using this 
procedure on version 4.01 can cause unpredictable 
behavior and even cause the operating system to fail. To 
remove the Spectrum24 Driver and/or transport driver, run 
the REMOVE.BAT file provided on the previous release 
(version 4.00 or earlier) of the driver installation disk 
(\WIN95\REMOVE.BAT). This removes the proper files 
from the hard disk
6.5  Windows 95 Driver And Transport Uninstall 
(Version 4.00 Or Earlier)
1. At the DOS prompt, enter:
REMOVE <parameter>
Where <parameter> is:
The Network Control Panel applet starts automatically, 
after running the Remove.Bat file.
2. To remove the driver, select the Symbol Spectrum24 
WLAN Adapter and click Remove.
3. To remove the transport, select the Symbol 
Spectrum24 WLAN Transport and click Remove.
4. Click the OK button to exit and restart the system.
driver Removes the driver only.
transport Removes the transport only.
both Remove both the transport and driver.

Windows 95/NT Driver Installations
 26 Spectrum24 Wireless LAN Adapter Product Reference Guide
To update the drivers, follow the Driver Installation 
instructions.
6.6  Windows 95 Driver Installation
6.6.1  Preparation
Before installing a driver for Windows 95, verify or obtain 
the following:
•Previous Spectrum24 Adapter and Transport have 
been removed.
•PCMCIA support is enabled for non-Plug and
Play adapters
•200 KB available disk space
•Windows 95 installation media
•Spectrum24 network adapter installed
•Spectrum24 2Mb Driver and Utilities disk
•Install the Spectrum24 PC Card or ISA adapter (refer
to hardware installation for instructions on installing
the adapter).
For non Plug and Play adapters, enable Windows 95 
PCMCIA support. Refer to Windows documentation for this 
if necessary.
6.7  Windows 95 Retail Version
1. Install the Spectrum24 ISA adapter or the Spectrum24 
PC Card. 
2. Power up and boot the system.

Windows 95/NT Driver Installations
Spectrum24 Wireless LAN Adapter Product Reference Guide  27
3. When Windows 95 recognizes the Spectrum24 PC/
ISA/Plug and Play Card, the New Hardware Found 
dialog box appears requesting the device driver
to install. 
4. Place the Spectrum24 installation disk into the floppy 
disk drive. 
5. Select Driver from disk provided by hardware 
manufacturer button, click the OK button.
6. When the Install From Disk dialog appears, (select the 
default entry A:\) click the OK button.
7. Continue with the Windows 95 driver installation 
instructions in this section.
6.8  Windows 95 OSR2 Version
1. Install the Spectrum24 ISA adapter or the Spectrum24 
PC Card.
2. Power up and boot the system.
3. When Windows 95 recognizes the Spectrum24 PC/
ISA/Plug and Play Card, the Update Device Driver
Wizard dialog box appears requesting the device 
driver to install. Select the Next button.
4. Place the Spectrum24 installation disk into the floppy 
disk drive.
5. The Update Device Driver Wizard dialog displays
the device description.  Click the Finish button
to continue.
6. When Windows displays “Windows found the 
following updated driver adapter device Symbol 
Spectrum24 WLAN Adapter” click the Finish button
to continue.
7. When Windows displays “please insert the disk 
labeled ‘Symbol Spectrum24 ISA/PC Card Installation 
Disk’” click OK.

Windows 95/NT Driver Installations
 28 Spectrum24 Wireless LAN Adapter Product Reference Guide
8. When the Install From Disk dialog appears, (select the 
default entry A:\) click the OK button.
9. When the Symbol Spectrum24 Configuration dialog 
box appears, select the Property Page that requires 
modification. To change the adapter settings, select 
the desired dialog. For the IEEE 802.11 protocol, set 
the ESS ID to the desired network Access Point ESS ID.  
For the Symbol Spring protocol, change the Net Id to 
the desired network Access Point Net Id. When using a 
WPOS/ISA adapter, change the Card Type dialog item 
parameter to WPOS/ISA. This dialog item is not 
available to the Plug and Play installation as shown. 
Click the OK button to complete.
10. Insert the Windows 95 installation CD-ROM if 
requested by Windows 95.  If  the Windows 95 .cab 
files have been copied onto the hard disk, point the 
system to the directory that contains them.  When a 
path has been entered to the Windows 95 installation 
files, click the OK button.
11. When the System Settings Change dialog appears, 
remove the Installation diskette from the floppy drive 
and select the Yes button to restart the computer.

Windows 95/NT Driver Installations
Spectrum24 Wireless LAN Adapter Product Reference Guide  29
6.9  Windows 95 Setup
1. When the Symbol Spectrum24 Configuration dialog 
box appears, select the Property Page that requires 
modification. To change the adapter settings, select 
the desired dialog . For the IEEE 802.11 protocol, set 
the ESS ID to the desired network Access Point ESS ID.  
For the Symbol Spring protocol, change the Net Id to 
the desired network Access Point Net Id. When using a 
WPOS/ISA adapter, change the Card Type dialog item 
parameter to WPOS/ISA. This dialog item is not 
available to the Plug and Play installation as shown. 
Click the OK button to complete.
Select Diversity for dual antennae.

Windows 95/NT Driver Installations
 30 Spectrum24 Wireless LAN Adapter Product Reference Guide
2. When the System Settings Change dialog appears, 
remove the Installation diskette from the floppy drive 
and select the Yes button to restart the computer.
6.10  Configuration
Modify the ESS ID or Net ID for the adapter so the network 
can recognize the Mobile Unit. The default values are 
“101” for the IEEE 802.11 ESS ID and 101 for the Symbol 
Protocol Net ID. 
To reconfigure the driver/adapter:
1. Open the Network applet from the Control Panel.
2. Select the Symbol Spectrum24 WLAN Adapter, and 
select the Properties button.
3. When the Symbol Spectrum24 Configuration dialog 
appears, select the appropriate tab to change the
adapter settings.

Windows 95/NT Driver Installations
Spectrum24 Wireless LAN Adapter Product Reference Guide  31
4. Select the dialog item to modify.
5. When all values have been changed, select the OK  
button to save and exit or Cancel to abort and exit.
6. Restart the system for changes to take effect.
Refer to appendix A for the table containing a description 
of the parameters and the range of acceptable values.
6.11  Windows NT 4.0/3.51 Driver Introduction
The Spectrum24 NDIS 3.x Driver provides access to a 
Spectrum24 WLAN adapter under Windows NT 3.51/4.0 
Workstation or Server. It supports all transport protocols 
(i.e. NetBEUI, IPX/SPX, TCP/IP) provided by Windows
NT 3.51/4.0 on both the Spectrum24 PC Card and ISA 
adapters. Install the driver during primary Windows
NT installation, or after Windows NT networking has
been installed. Locate the files for Windows NT 3.51
and Windows NT 4.0 in the Root directory and 
\WINNT\I386 subdirectory. The distribution disk(s) include 
the following:
File Name Driver Description
SLANT.SYS Spectrum24 NDIS 3.x Driver Version 4.x
OEMSETUP.INF Spectrum24 NDIS 3.x Driver Install 
Script for Windows NT 3.51/4.0.
OEMNXP24.INF Spectrum24 NDIS 3.x Transport Install 
Script for Windows NT 3.51/4.0.
S24EVMON.EXE Spectrum24 Driver Extension Service.
S24NT.DLL Spectrum24 Installation DLL Version 3.x.
S24NT.HLP Spectrum24 Installation DLL On-line 
Help text file Version 3.x.

Windows 95/NT Driver Installations
 32 Spectrum24 Wireless LAN Adapter Product Reference Guide
Symbol recommends updating the Spectrum24 PC/ISA 
adapter to the latest firmware. Refer to the Firmware 
update section for instructions.
6.12  New Features For v4.00
•supports IEEE 802.11 protocol.
•supports 1 and 2 Mbps transfer rates.
6.13  Current Features For NT
•The driver installation supports Windows NT 3.51 and 
NT 4.0 Workstation and Server versions.
•Symbol supports all Windows NT transport protocols 
(NetBEUI, IPX/SPX, TCP/IP, etc.) on both the 
Spectrum24 PC Card and ISA adapter.
•Symbol fully supports all Spectrum24 PC Card and 
ISA adapter firmware releases from Version 3.xx to 
Version 4.xx are fully supported.
•Symbol fully supports all Spectrum24 diagnostic and 
configuration utilities are supported. These utilities are 
distributed on separate installation disks.
•Supports Symbol Spectrum24 protocol.
INSTALNT.DOC Installation instructions (Microsoft Word 
6.0/7.0).
INSTALNT.TXT Installation instructions (DOS Text - i.e. 
Microsoft Notepad).

Windows 95/NT Driver Installations
Spectrum24 Wireless LAN Adapter Product Reference Guide  33
6.14  Current Limitations For NT
•Perform adapter firmware update and preinstallation 
PC/ISA card diagnostics (S24DIAG) under DOS. A 
graphical interface version of site survey that runs on 
Windows NT is available.
•Resource conflicts (i.e. Interrupt Number, I/O Base 
Address, Memory Base Address) are not detected 
during installation/configuration. Set up the 
configuration so that it does not conflict with
other adapters.
•Installation disk does not support network card 
autodetection. Requires manual installation of
the driver.
•Driver does not support Windows NT running on an 
IBM notebook computer.
•Symbol does not support ISA Plug and Play.
6.15  Workstation/Server Primary Installation
6.15.1  Preparation
When installing the networking components and 
Spectrum24 driver during Windows NT Workstation or 
Server primary installation, verify or obtain the following:
•If using Spectrum24 ISA adapter, install prior to 
enabling PCMCIA support.
•PCMCIA support is enabled (refer to Windows NT 
documentation).
•Install the Spectrum24 PC Card before or after 
PCMCIA support is enabled.
•400 KB of available disk space.
•The Spectrum24 Windows 95/NT Installation disk.

Windows 95/NT Driver Installations
 34 Spectrum24 Wireless LAN Adapter Product Reference Guide
The driver installation disk does not include Spectrum24 
utilities. S24INFO and S24UTIL are distributed separately.
6.16  Windows NT 4.0  
1. Power up the system, when the Windows NT Setup 
dialog appears, click the Select from list button for 
Network Adapters selection.
2. Select Network Adapter dialog appears, click  the 
Have Disk button.
3. Insert the Spectrum24 ISA/PC Windows 95/NT 
Installation diskette into the floppy drive and select the 
default path to the driver files (A:) by clicking OK.
4. When the Select OEM Option dialog appears, select 
the Symbol Technologies Spectrum24 Adapter and 
click OK. 
5. At the Windows NT Setup dialog, click Next
to continue.
6. When the Windows NT Setup dialog appears for 
protocol installation, select the appropriate Network 
Protocols and Network Services. Click Next, and Next 
again to start the network installation. 
7. Select Next to start the installed network configuration.
8. When the Symbol Technologies Spectrum24 NT 
Installation dialog appears, set the appropriate driver/
adapter configuration parameters. For the Symbol 
Spring protocol, change the Net Id to the Access Point 
Net Id. For the IEEE 802.11 protocol, change the ESS 
ID to the Access Point ESS ID. For the WPOS/ISA bus 
card, select the WPOS/ISA Adapter Type. Click OK 
when complete or Cancel to use default values.

Windows 95/NT Driver Installations
Spectrum24 Wireless LAN Adapter Product Reference Guide  35
Interrupt Number, I/0 Port Address and Memory Base 
Address might need modification to fit system needs. 
Check the system resources for nonconflicting settings 
before proceeding with installation.
Select Diversity for dual antennae.
9. Modify any protocol specific parameters that Windows 
NT requires to continue.
10. At the Windows NT Setup Wizard dialog, select Next
to continue.
11. Enter the Computer Name, Workgroup or Domain for 
this computer and select Next. 

Windows 95/NT Driver Installations
 36 Spectrum24 Wireless LAN Adapter Product Reference Guide
12. At the Windows NT Setup Wizard dialog , select Finish 
to complete the installation.
13. The Windows NT Setup Wizard continues to setup 
other operating system components.
14. At the Reboot System dialog, select restart to reboot
the system.
15. Remove the Spectrum24 ISA/PC Windows 95/NT 
Installation disk.
6.17  Windows NT 3.51
1. Power up the system and when the Network Adapter 
Card Detection dialog appears, select Continue to 
manually install the driver. Select Continue when the 
secondary dialog appears.
2. Add Network Adapter dialog appears, select the drop 
down the selection box, proceed to the bottom of the 
list, and select <Other> Requires disk from 
manufacturer from the Network Adapter Card list, and 
select Continue.
3. Insert the Spectrum24 ISA/PC Windows 95/NT 
Installation diskette into the floppy drive and select the 
default path to the driver files (A:\) by selecting the
OK button.
4. Select OEM Option dialog appears, select Symbol 
Technologies Spectrum24 Adapter and select the OK 
to accept the selection.
5. When the Symbol Technologies Spectrum24 NT 
Installation dialog appears, set the appropriate driver/
adapter configuration parameters. For the Symbol 
Spring protocol, change the Net Id to the Access Point 
Net Id. For the IEEE 802.11 protocol, change the ESS 
ID to the Access Point ESS ID. For the WPOS/ISA bus 
card, select the WPOS/ISA Adapter Type. Click OK 
when complete or Cancel to use default values.

Windows 95/NT Driver Installations
Spectrum24 Wireless LAN Adapter Product Reference Guide  37
6. Interrupt Number, I/0 Port Address and Memory Base 
Address might need modification to fit the system 
needs. Check the system resources for non-conflicting 
settings before proceeding with installation
Select Diversity for dual antennae.
7. Modify any protocol specific parameters that Windows 
NT requires to continue.
8. When the Network Settings dialog appears, select OK 
to accept the changes.
9. If a warning appears that the network could not start 
properly, select OK button. If a Network Malfunction 
warning message dialog appears, select No. The 
network starts up properly when the machine reboots.

Windows 95/NT Driver Installations
 38 Spectrum24 Wireless LAN Adapter Product Reference Guide
10. Remove the Spectrum24 ISA/PC Windows 95/NT 
Installation disk and follow all remaining instructions.
6.18  First Time Network Installation
If the networking components were not installed during the 
primary installation process, install  them using the 
Network Control Panel applet. Users need Administrator 
group privileges to install network components.
6.19  Windows NT 4.0
1. Boot and login to the system.
2. Open the Network applet from the Control Panel.
3. The Network Configuration dialog prompts for 
Windows NT Networking installation, click on the Yes 
button. Select the Wired to the network check box 
when the Network Setup Wizard dialog appears and 
click the Next button.
4. When the Network Setup Wizard dialog queries
for a network installation, click the Select from list… 
button.
5. From the Select Network Adapter dialog, click the 
Have Disk… button.
6. Insert the Spectrum24 ISA/PC Windows 95/NT 
Installation into the floppy drive and select the default 
path to the driver files (A:) by clicking the OK button.
7. Select the Symbol Technologies Spectrum24 WLAN 
adapter and click the OK button.
8. When the Network Setup Wizard dialog returns, click 
the Next button to continue.
9. The Network Setup Wizard dialog displays protocol 
choices. Select all that apply, click the Next button

Windows 95/NT Driver Installations
Spectrum24 Wireless LAN Adapter Product Reference Guide  39
to continue. Click the Next button through the next two 
dialogs.
10. The Network Setup Wizard displays a dialog 
requesting some Windows NT files. Enter the full path 
to the Windows NT distribution files (i.e. A:\ for floppy 
based installation), and click the Continue button.
11. When the Symbol Technologies Spectrum24 NT 
Installation dialog appears, set the appropriate driver/
adapter configuration parameters. For the Symbol 
Spring protocol, change the Net Id to the Access Point 
Net Id. For the IEEE 802.11 protocol, change the ESS 
ID to the Access Point ESS ID. For the WPOS/ISA bus 
card, select the WPOS/ISA Adapter Type. Click OK 
when complete or Cancel to use default values.
Select Diversity for dual antennae.

Windows 95/NT Driver Installations
 40 Spectrum24 Wireless LAN Adapter Product Reference Guide
Interrupt Number, I/0 Port Address and Memory Base 
Address might need modification to fit the system needs. 
Check the system resources for non-conflicting settings 
before proceeding with installation
12. The Network Setup Wizard displays the network
binding dialog and allows the user to change the 
binding to the various Windows NT services. Making 
modifications to this dialog is not necessary for a 
successful Spectrum24 installation. Click the Next 
button to continue.
13. The Network Setup Wizard displays the Start Network 
dialog. Click the Back button to return and modify 
previous dialogs. Otherwise, start the network by 
clicking the Next button.
14. The Network Setup Wizard displays the Network 
Identification dialog. Type the Computer Name, 
Workgroup or Domain for this computer and click the 
Next button. 
15. The Network Setup Wizard displays the final setup 
dialog, click the Finish button to complete the
setup procedure.
16. The Network Settings Change dialog displays and 
requests a system shutdown. Click the Yes button
to reboot.
17. Remove the Spectrum24 ISA/PC Windows 95/NT 
Installation disk.
6.20  Windows NT 3.51
1. Boot and login to the system.
2. Open the Network applet from the Control Panel.

Windows 95/NT Driver Installations
Spectrum24 Wireless LAN Adapter Product Reference Guide  41
3. The Network Settings dialog prompts for Windows NT 
Networking installation, click the Yes button to 
continue. When prompted, enter the full path to the 
Windows NT distribution files (i.e. A:\ for floppy based 
installation), and click the Continue button.
4. When the Network Adapter Card Detection dialog 
appears, click the Do Not Detect button to manually 
install the driver. Click the Continue button when the 
next dialog appears.
5. At the bottom of the Add Network Adapter list box, 
click <Other> Requires disk from manufacturer from 
the Network Adapter Card list and click the Continue 
button. Insert the Spectrum24 ISA/PC Windows 95/NT 
Installation diskette into the floppy drive and select the 
default path to the driver files (A:\) by clicking the OK 
button.
6. When the Select OEM Option dialog appears, select 
the Symbol Technologies Spectrum24 WLAN Adapter 
option. Click the OK button to continue.
7. When the Symbol Technologies Spectrum24 NT 
Installation dialog appears, set the appropriate driver/
adapter configuration parameters. For the Symbol 
Spring protocol, change the Net Id to the Access Point 
Net Id. For the IEEE 802.11 protocol, change the ESS 
ID to the Access Point ESS ID. For the WPOS/ISA bus 
card, select the WPOS/ISA Adapter Type. Click the OK 
button when complete or the Cancel button to use 
default values.
Interrupt Number, I/0 Port Address, and Memory Base 
Address might need modification to fit the needs of the 
system. Check the system resources for nonconflicting 
settings before proceeding with the installation.

Windows 95/NT Driver Installations
 42 Spectrum24 Wireless LAN Adapter Product Reference Guide
Select Diversity for dual antennae.
8. From the Windows NT Setup dialog, select any
applicable transport protocols. Click the Continue 
button to proceed.
9. When prompted for protocol specific configuration,
click the Symbol Spectrum24 Adapter in the
appropriate dialogs.
10. Dialogs displays based on any protocol selections
 made. Proceed by clicking the Continue button for 
each dialog encountered.
11. After the Network Settings dialog appears, click 
Bindings to view the current protocol bindings.

Windows 95/NT Driver Installations
Spectrum24 Wireless LAN Adapter Product Reference Guide  43
Use the Enable/Disable buttons to enable/disable
the appropriate bindings, click the OK button
when complete.
12. Click the OK button to exit the Network Control
Panel applet.
13. A prompt requests configuration of the bound 
protocol stacks. Click the Symbol Spectrum24
WLAN Adapter from the Adapter list and enter 
appropriate values.
14. If a warning appears that the network could not be 
started properly, click the OK button to continue. The 
network starts after reboot. If a Network Malfunction 
warning message dialog appears, click the No button 
to continue. The network starts properly after 
rebooting the machine.
15. Remove the Spectrum24 ISA/PC Windows 95/NT 
Installation disk and follow all remaining instructions 
to complete the installation.
6.21  Existing Network Installation
When using a previous driver version, remove the driver 
before installing the new one. Use the Network Control 
Panel applet Remove function to remove the driver and 
reboot the system. Follow the Driver Installation procedure 
below. Install only one Spectrum24 PC Card in a single 
machine. The Spectrum24 PC Card can coexist with a 
second non-Spectrum24 LAN adapter. Ensure proper 
protocol stack bindings (i.e. some stacks bind to
both adapters but cannot function properly).
Administrator group privileges are required to install 
network components.

Windows 95/NT Driver Installations
 44 Spectrum24 Wireless LAN Adapter Product Reference Guide
6.22  Windows NT 4.00
1. Boot and log into the system.
2. Open the Network applet from the Control Panel. 
3. Click Adapters, and click the Add button. 
4. When the Select Network Adapter dialog appears, 
click the Have disk… button.
5. Insert the Spectrum24 ISA/PC Windows 95/NT 
Installation diskette into the floppy drive and select
the default path to the driver files (A:) by clicking the 
OK button.
6. Select the Symbol Technologies Spectrum24 WLAN 
Adapter, and click the OK button to continue.
7. When the Symbol Technologies Spectrum24 NT 
Installation dialog appears, set the appropriate driver/
adapter configuration parameters.
– For the Symbol Spring protocol, change the Net Id 
to the Access Point Net Id.
– For the IEEE 802.11 protocol, change the ESS ID 
to the Access Point ESS ID.
– For the WPOS/ISA bus card, select the WPOS/ISA 
Adapter Type.
8. Click the OK button when complete or the Cancel 
button to use default values.

Windows 95/NT Driver Installations
Spectrum24 Wireless LAN Adapter Product Reference Guide  45
Select Diversity for dual antennae. Interrupt Number, I/0 
Port Address, and Memory Base Address might need 
modification to fit the system needs. Check the system 
resources for nonconflicting settings before proceeding 
with installation.
9. When the Network dialog box appears, click the
Protocols tab. 
Verify that Symbol Technologies Spectrum24 NDIS 3.0 
Packet Driver Appears under Network Protocols.
10. Select Add.
11. When the Network Protocol list box appears, select the 
desired protocol.
12. Click OK.

Windows 95/NT Driver Installations
 46 Spectrum24 Wireless LAN Adapter Product Reference Guide
13. When Windows displays “Setup Needs To Copy Some 
Windows NT files”. Enter the full path to the Windows 
NT distribution files (i.e. A:\ for floppy based 
installation), and click the Continue button.
14. Click the Bindings button to view the current protocol 
stack bindings. Click the Enable/Disable buttons to 
enable or disable the appropriate bindings.
15. Click the Close button to exit the Network settings.
16. If prompted to configure the bound protocol stacks
at this time, select the Symbol Spectrum24
WLAN Adapter from the Adapter list and enter 
appropriate values.
17. The Network Settings Change dialog displays and 
requests a system shutdown. Click the Yes button
to reboot.
18. Remove the Spectrum24 ISA/PC Windows 95/NT 
Installation disk.
6.22.1  Windows NT 3.51
1. Boot and log into the system.
2. Open the Network applet from the Control Panel.
3. When the Network Settings dialog appears, click the 
Add Adapter button. 
4. When the Add Network Adapter dialog appears, click 
<Other> Requires disk from manufacturer selection 
and click the Continue button.
5. Insert the Spectrum24 ISA/PC Windows 95/NT 
Installation diskette into the floppy drive and select
the default path to the driver files (A:\) by clicking the 
OK button.
6. Select the Symbol Technologies Spectrum24 WLAN 
Adapter and click the OK button.

Windows 95/NT Driver Installations
Spectrum24 Wireless LAN Adapter Product Reference Guide  47
7. When the Symbol Technologies Spectrum24 NT 
Installation dialog appears, set the appropriate driver/
adapter configuration parameters. For the Symbol 
Spring protocol, change the Net Id to the Access Point 
Net Id. For the IEEE 802.11 protocol, change the ESS 
ID to the Access Point ESS ID. For the WPOS/ISA bus 
card, select the WPOS/ISA Adapter Type. click the OK 
button when complete or the Cancel button to use 
default values.
Verify in the Installed Network Software list that Symbol 
Technologies Spectum24 NDIS and Spectrum24 Symbol 
Technologies WLAN are present. If not restart installation
8. Click Add Software button.
9. Add Network Software dialog list appears.
10. Select the desired Network Protocol. Click Continue.
11. The Windows NT Setup dialog box requests Windows 
NT distribution files. Enter the full path to the location 
(i.e. E:\i386 for a CD Rom installation) of these files. 
Click Continue.

Windows 95/NT Driver Installations
 48 Spectrum24 Wireless LAN Adapter Product Reference Guide
Interrupt Number, I/0 Port Address, and Memory Base 
Address might need modification to fit the system needs. 
Check the system resources for nonconflicting settings 
before proceeding with installation.
Verify that Symbol Spectrum24 WLAN Adapter is
selected before updating bindings. Select Diversity for
dual antennae.
12. Click Bindings to view the current protocol stack 
bindings. Use the Enable/Disable buttons to enable or 
disable the appropriate bindings (enabled bindings 
have a yellow light bulb next to them).
13. Click OK to exit the Network Settings dialog.

Windows 95/NT Driver Installations
Spectrum24 Wireless LAN Adapter Product Reference Guide  49
14. If prompted to configure the bound protocol
stacks at this time, click the Symbol Spectrum24 WLAN 
Adapter from the Adapter list and enter appropriate 
values.
15. The Network Settings Change dialog displays and 
requests a system shutdown. Click the Restart Now
to reboot.
16. Remove the Spectrum24 ISA/PC Windows 95/NT 
Installation disk.
6.23  Windows NT Driver Update
Use the Update function in the Network Control Panel
applet to update the Spectrum24 files on the hard disk. 
The existing driver/adapter configuration does not change.
6.24  Windows NT 4.0
1. Boot and log into the system.
2. Open the Network Control Panel  applet.
3. Select the Adapters tab.
4. Select the Symbol Spectrum24 WLAN Adapter, and 
click the Update button to continue.
5. Insert the Spectrum24 ISA/PC Windows 95/NT 
Installation diskette into the floppy drive and select
the default path to the driver files (A:\) by clicking the 
OK button.
6. When prompted, remove the installation disk.
7. Click the OK button. 
8. Click the Close button to exit the Network applet.
9. Click the Yes button to restart the system.

Windows 95/NT Driver Installations
 50 Spectrum24 Wireless LAN Adapter Product Reference Guide
10. Remove the Spectrum24 ISA/PC Windows 95/NT 
Installation disk.
6.25  Windows NT 3.51
1. Boot and log into the system.
2. Open the Network icon from the Control Panel.
3. Select the Symbol Spectrum24 WLAN Adapter, and 
click the Update button to continue.
4. Insert the Spectrum24 ISA/PC Windows 95/NT 
Installation diskette into the floppy drive and select
the default path to the driver files (A:\) by clicking the 
OK button.
5. When prompted, remove the installation disk.
6. Click the OK button twice to exit the Network applet.
7. Click the Restart Now button to restart the system.
8. Remove the Spectrum24 ISA/PC Windows 95/NT 
Installation disk.
6.25.1  Network Adapter Configuration
Modify the Card Type and the ESS_ID or Net_ID.  If there 
are resource conflicts, change one or more of the 
following: Interrupt Number, I/O Port Address, and 
Memory Base Address. To reconfigure the driver/adapter 
do the following:
6.26  Windows NT 4.00
1. Boot and log into the system.
2. Open the Network icon from the Control Panel.
3. Select the Symbol Spectrum24 WLAN Adapter, and 
click the Configure button.

Windows 95/NT Driver Installations
Spectrum24 Wireless LAN Adapter Product Reference Guide  51
4. Select Adapters, select the Symbol Spectrum24 WLAN 
Adapter and click the Properties button.
5. When the Symbol Technologies Spectrum24 NT 
Installation dialog appears, select a field and use the 
arrow buttons to display a list of valid values or use the 
keyboard to enter a value.
Enter values with a leading ‘0x’ representing hex-decimal 
numbers with leading ‘0x’ when using keyboard entry.
6. When all values have been changed, click the OK
button to save and exit. Click the Cancel button to 
abort and exit.
6.27  Windows NT 3.51
1. Boot and log into the system.
2. Open the Network icon from the Control Panel.
3. Select the Symbol Spectrum24 WLAN Adapter, and 
click the Configure button.
4. When the Symbol Technologies Spectrum24 NT 
Installation dialog appears, select a field and use the 
arrow buttons to display a list of valid values or use the 
keyboard to enter a value.
Enter values displayed with a leading ‘0x’ representing 
hex-decimal numbers  with the leading ‘0x’ when using 
keyboard entry.
5. When all values have been changed, click the OK
button to save and exit. Click the Cancel button to 
abort and exit.

Windows 95/NT Driver Installations
 52 Spectrum24 Wireless LAN Adapter Product Reference Guide
Refer to appendix B for the table containing a description 
of the parameters and the range of acceptable values.

Spectrum24 Wireless LAN Adapter Product Reference Guide  53
Chapter 7 DOS/Windows For 
Workgroups Driver 
Installation
7.1  Preventing Memory Range Conflicts
The ISA Plug and Play WLAN card requires users to load 
SLAINIT.EXE prior to loading the driver or updating the 
firmware. Ensure the firmware is up to date. Refer to 
firmware update section for instructions on firmware 
version verification.
1. To prevent conflicts with other devices, use an 
extended memory manager (i.e., EMM386, etc.). 
Exclude the upper memory block where the adapter 
resides. Modify the memory manager device line in 
CONFIG.SYS, if the adapter has a memory location 
starting at 0xD000 operating in memory mode and 
EMM386 is being used.
– For memory mode operation:
[DEVICE]=[path]EMM386.EXE X=D000-D7FF
– For I/O mode operation:
[DEVICE]=[path]EMM386.EXE X=D000-D0FF
2. Modify the network configuration to include the 
memory range used by the WLAN adapter.
– Exclude a 4 KB memory range for I/O Mode 
operation.

DOS/Windows For Workgroups Driver Installation
 54 Spectrum24 Wireless LAN Adapter Product Reference Guide
– Exclude a 32 KB memory range for memory
mode operation. 
Refer to the Network Configuration  for further details. 
Memory manager parameter settings vary. Refer to the 
memory manager software documentation
3. Reboot the system.
Refer to Vendor docmentation for setup and installation of 
third-party network software and drivers.
7.2  Spectrum24 Automated Driver Installation
The installation program copies the ODI  driver and 
configuration files for the Novell Client to the hard 
drive. The installation program can modify 
AUTOEXC.BAT. The automatic installation program 
assumes default settings. To control value selection, 
use the manual installation option.The installation 
program also includes diagnostics functions for testing 
the adapter. For additional information, refer to the 
README.TXT file provided on the DOS (16 bit) Drivers 
and Utilities diskette.
•For ODI, select ODI Installation from the main menu.
This allows an automatic or manual driver installation 
and configuration.
•For NDIS, select Driver Installation Instructions from 
the main menu. For installation program overview, 
select Help from the main menu and select Installation 
Overview. To control value selection, use the manual 
installation.

DOS/Windows For Workgroups Driver Installation
Spectrum24 Wireless LAN Adapter Product Reference Guide  55
A default installation is assumed for all driver installations. 
All references made are to default directories for
all installations.
1. Power up the system to a DOS prompt.
2. Insert the Drivers and Utilities Installation Diskette into 
the floppy drive.
3. Change the drive and path to the location of the 
Drivers and Utilities diskette.
4. Press the Enter key.
5. Type Install.
6. Follow the instructions from the installation program. 
Reboot the system when prompted.
If the automatic installation program was not used, copy 
the files as needed (LSL.COM, SLAINIT.EXE, 
SL8ODIPC.COM) from the Drivers and Utilities Installation 
diskette to the appropriate directory on the hard disk.
7.3  NDIS Manual Installation 
For NDIS, MUs require the radio device driver 
SL8NDIS.EXE. A protocol manager (e.g. PROTMAN) binds 
NDIS drivers to the protocol stack. A network bind (e.g. 
NETBIND) program binds all the network stack 
components. NDIS loads as a system block device driver 
NDIS drivers install in the CONFIG.SYS.
The NDIS driver supports network configurations 
compatible with the NDIS v2.01 specification NDIS 
configured systems require the following:

DOS/Windows For Workgroups Driver Installation
 56 Spectrum24 Wireless LAN Adapter Product Reference Guide
•SL8NDIS.EXE - The Spectrum24 radio device driver.
•PROTMAN - A protocol manager to bind NDIS drivers 
to the protocol stack.
•NETBIND - a network bind program for all network
stack components.
•Other protocol drivers as required
Locate NDIS network parameters in Protocol.ini. Edit 
Protocol.ini using an ASCII text editor. The following 
example assumes a default installation of the third party 
network software. Refer to individual vendor 
documentation for setup of specific network software being 
used. [PATH] refers to the location of files on the hard 
drive. If the automatic installation program was not used, 
copy the files as needed (PROTMAN.DOS, SL8NDIS.EXE, 
NETBIND.COM) from the Drivers and Utilities Installation 
diskette to the appropriate directory on the hard disk.
7.4  Modifying Config.sys 
Verify the following lines in Config.sys are present:
DEVICE=[PATH]\PROTMAN.DOS /C:\
DEVICE=[PATH]\SL8NDIS.exe
•other protocol drivers as required
7.5  Modifying Autoexec.bat
In AUTOEXEC.BAT verify the following:
[PATH]\NETBIND.COM

DOS/Windows For Workgroups Driver Installation
Spectrum24 Wireless LAN Adapter Product Reference Guide  57
7.6  Modifying Protocol.ini
Modify PRTOCOL.INI to include:
[sample PROTOCOL.INI entry for SYMBOL NDIS driver]
[protman]
DriverName=SYMBOL$
[SYMBOLNET]
DRIVERNAME=SYMBOL$
IOADDRESS=0x300
INT=5
MEM=0xD000
ESS_ID=101
DIVERSITY=NO   
•other Keywords as required from appendix D.
[Other protocol driver sections as required]
7.7  ODI Manual Installation 
For ODI, MUs require a Multiple Link Interface Driver 
(MLID) called SL8ODIPC.COM. SL8ODIPC.COM is the 
radio device driver. The multiple stacks the MU uses (e.g. 
TCP/IP) are known as the Multiple Protocol Interfaces 
(MPI). A link support layer (LSL) program provides the link 
between MLID and MPI. ODI loads as a Terminate and 
Stay Resident (TSR) program. ODI program files run from 
the command line or as part of a batch file.
Edit ODI binding and configuration information stored in 
NET.CFG with an ASCII text editor using the appropriate 
keywords found in Appendix D. The following examples 
assume a default installation of third party network 

DOS/Windows For Workgroups Driver Installation
 58 Spectrum24 Wireless LAN Adapter Product Reference Guide
programs. [PATH] refers to the location of files on the hard 
drive. If the automatic installation program was not used, 
copy the files as needed (LSL.COM,  SL8ODIPC.COM, ) 
from the Drivers and Utilities Installation diskette to the 
appropriate directory on the hard disk.
7.8  Modifying Autoexec.bat 
Modify AUTOEXEC.BAT to include the following:
[PATH]\LSL
[PATH]\SLAINIT (If using an ISA card)
[PATH]\SL8ODIPC
•other protocol drivers as required.
7.9  Modifying Net.cfg 
With an ASCII text editor, create NET.CFG in the network 
directory. Include the following statements:
LINK DRIVER SLAODI
FRAME ETHERNET_II
MODE IO
IOADDRESS 300
INTERRUPT 5
ESS_ID 101
Verify the values do not conflict with other system 
interrupts, I/O and memory ranges. Refer to Appendix D 
for a detailed description of DOS keyword definitions.

DOS/Windows For Workgroups Driver Installation
Spectrum24 Wireless LAN Adapter Product Reference Guide  59
7.10  Keyword usage
Certain keywords enable or disable features, modes
and usage of the Spectrum24 adapter in different 
environments. Refer to Appendix D for a detailed definition 
of all DOS keywords.
7.11  Enabling Plug and Play
In both cases set the driver keyword PNP to YES. Verify that 
the keywords Cardservices and Socketservices are not 
present or are set to NO.
For ODI, in NET.CFG enter:
PNP YES
CARDSERVICES NO
SOCKETSERVICES NO
For NDIS, in PROTOCOL.INI enter:
PNP=YES
CARDSERVICES=NO
SOCKETSERVICES=NO

DOS/Windows For Workgroups Driver Installation
 60 Spectrum24 Wireless LAN Adapter Product Reference Guide
The ISA Plug and Play WLAN card requires users to load 
SLAINIT.EXE prior to loading the driver or updating the 
firmware. For ODI, from the command line or in a batch 
file load the following:
LSL.COM
SLAINIT.EXE
SL8ODIPC.COM
•other protocol drivers as required.
For NDIS, in the config.sys file include:
[DEVICE]=[PATH]\PROTMAN.DOS
[DEVICE]=[PATH]\SLAINIT.EXE
[DEVICE]=[PATH]\SL8NDIS.EXE
•other protocol drivers as required.
7.12  Enabling CardServices
Load SLAINIT.EXE prior to loading the driver in order to use 
Card and Socket Services with the PCMCIA Adapter card. 
Using Card and Socket Services allows Hot Swapping the 
PCMCIA Adapter card. It also provides protection against 
resource conflicts.

DOS/Windows For Workgroups Driver Installation
Spectrum24 Wireless LAN Adapter Product Reference Guide  61
For ODI, from the command line or in a batch file enter:
LSL.COM
SLAINIT.EXE
SL8ODIPC.COM
•other protocol drivers as required.
For NDIS, in config.sys enter:
[DEVICE]=[PATH]\PROTMAN.DOS
[DEVICE]=[PATH]\SLAINIT.EXE
[DEVICE]=[PATH]\SL8NDIS.EXE
•other protocol drivers as required.
Ensure that the driver keywords Cardservices and 
Socketservices have been set to Yes. Verify that PNP is not 
present or has been set to No.
For ODI, in NET.CFG enter:
PNP NO
CARDSERVICES YES
SOCKETSERVICES YES

DOS/Windows For Workgroups Driver Installation
 62 Spectrum24 Wireless LAN Adapter Product Reference Guide
For NDIS, in PROTOCOL.INI enter:
PNP=NO
CARDSERVICES=YES
SOCKETSERVICES=YES
Modify the driver keywords Memory and IOAddress if 
desired. SL8INIT.EXE uses the values to request resources 
from Card Services. Card Services provides values if they 
are unavailable. If the SL8INIT.EXE keyword 
DynamicResources is set to Yes, SL8INIT.EXE accepts these 
values and passes them to the driver.
7.13  Windows for Workgroups (v3.11) 
7.13.0.1  Preparation. 
Before installing the driver for Windows for Workgroups, 
verify or obtain the following:
• Spectrum24 network adapter installed
• WFW v3.11 installation media
• the Spectrum24 driver disk.
If a previous Spectrum24 driver was installed, remove it 
before installing the new Spectrum24 driver.
7.14  Installing The Driver
1. After Windows starts, from Program Manager open the 
group MAIN.

DOS/Windows For Workgroups Driver Installation
Spectrum24 Wireless LAN Adapter Product Reference Guide  63
2. Double click on the Windows setup applet.
3. Open the Options menu. Click Change Network 
Settings.
4. Select WFW network or windows support for
another network.
5. Select Drivers.
6. Select Symbol Spectrum24 LAN Adapter and click 
Remove.
7. Click Close, click OK.
8. Select Unlisted or Updated Network Adapter.
9. Enter the new OEMSETUP.INF file location.
10. Select the new Spectrum24 802.11 adapter from the 
list. Click OK.
11. From the Network Drivers dialog box, select Setup.
12. Set the parameters in this box.
13. Select Advanced.
14. Enter the ESS_ID number (Use double-quotes when 
entering the number). Click OK.
15. Click OK in the adapter settings dialog box.
16. At the Network Drivers dialog box, continue following 
the WFW instructions.
17. When the prompt Files for Symbol Spectrum24 802.11 
LAN Adapter are currently installed, do you want to 
replace them? appears, click YES.
18. Enter the path where the new OEMSETUP.INF file
is located
19. Complete the WFW installation instructions on
the screen.
20. Remove the installation disk.
21. Restart System for changes to take effect.

DOS/Windows For Workgroups Driver Installation
 64 Spectrum24 Wireless LAN Adapter Product Reference Guide
After restarting the system, the Spectrum24 802.11 
adapter driver parameters remain active and present 
under setup in WFW network settings. The Spring 
parameters remain present under network settings in WFW. 
This does not indicate any abnormalities with the new 
Spectrum24 802.11 driver.

Spectrum24 Wireless LAN Adapter Product Reference Guide A 1
Appendix A Windows 95 Network 
Configuration Properties
Parameters
For PSP
Description Range and 
Default
Beacon 
Algorithm
the algorithm used
to determine how 
often the adapter 
wakes up to check for 
data in the associated 
access point. A lower 
number means that 
the adapter wakes up 
more frequently. 
Algorithm 11 means 
that the adapter 
adapts to the
traffic load.
Range: 1 - 11 
Default: 1
Beacon 
Maximum
specifies the highest 
number used (in PSP 
mode only) when the 
Beacon Algorithm is
set to 11.
Range: 1 - 10 
Default: 10
Beacon 
Minimum
specifies the lowest 
number used when
the Beacon Algorithm
is set to 11.
Range: 1 - 10 
Default: 1
Power Mode selects Continuously 
Aware Mode (CAM) 
or Power Saving 
Protocol (PSP) mode.
Range: CAM, PSP 
Default: CAM

Windows 95 Network Configuration Properties
A 2 Spectrum24 Wireless LAN Adapter Product Reference Guide
Parameters
For MicroAP
Description Range and 
Default
MicroAP
1 Megabit
Base rate.
indicates 1 Mbps
base rate supported.
Range: No, Yes 
Default: None
Hop Sequence frequency hopping 
sequence selection 
(MicroAP only).
Range: 1 - 79,
255 = auto-select
Default: 255 - auto-
select
Hop Set frequency hopping
set selection (MicroAP 
only).
Ra ng e:  1 -  3                       
Default: 1
Access Point Id Access Point Id setting 
(MicroAP and Symbol 
protocol only).
Range: 0x0 - 0x7F, 
<Auto> = auto-
select
Default: <Auto>
Beacon Delay frequency 'hops' 
between broadcast 
'DTIM' transmissions 
(MicroAP only).
Range: 1 - 10 
Default: 1
Beacon Delay frequency 'hops' 
between broadcast 
'beacon' transmissions 
(MicroAP and Symbol 
protocol only).
Range: 1 - 10
Default: 10

Windows 95 Network Configuration Properties
Spectrum24 Wireless LAN Adapter Product Reference Guide A 3
Other 
Parameters
Description Range and Default
IP Address Mobile IP Home 
TCP/IP Address.
Range: Any Valid IEEE 
TCP/IP address.
Default: none
Delay Time Mobile IP Delay 
Time.
Range: 1 - 120
Default: 60
Registration 
Timeout
Mobile IP 
Registration 
timeout.
Range: 1 - 10
Default: 3
Mandatory
BSS ID
specifies a BSS ID 
address (IEEE 
address) of an 
Access Point with 
which this unit 
associates.
Range: Any valid IEEE 
address.
Default: 0 (none)
Preferred
BSS ID
specifies a BSS ID 
address (IEEE 
address) for an 
Access Point with 
which this unit 
should associate.
Range: Any valid IEEE 
address
Default: 0 (none)
1 Megabit 
Support
indicates how
1 Mbps data rate
is supported.
Range: No, Yes
Default: Yes
2 Megabit 
Support
indicates how
2 Mbps data rate
is supported.
Range: No, Yes
Default: Yes

Windows 95 Network Configuration Properties
A 4 Spectrum24 Wireless LAN Adapter Product Reference Guide
Card Type identifies the 
physical form factor 
and bus type for
the Spectrum24 
adapter.
Range: PCMCIA, 
WPOS/ISA,
Plug and Play
Default: PCMCIA
Diversity enables/disables 
secondary antenna.
Range: Yes-Dual,
No-Single
Default: No
ESS ID identifies the ESS 
(Extended Service 
Set) ID for the 
network with which 
the adapter 
associates.
Range: any displayable 
ASCII character string 
up to 32 characters 
long.
Default: "101"
Hop Sequence frequency hopping 
sequence selection 
(MicroAP and 
Symbol protocol 
only).
Range: 1 - 22, 
<Auto> = auto-select 
Default: <Auto>
Net_ID AP or MicroAP 
Network IDentifier 
(Net_ID Symbol 
protocol only).
Range: any string of 
displayable ASCII 
characters up to 32 
characters long. 
Default: 0x101
Mobile IP enable Mobile IP. Range: Enabled, 
Disabled
Default: Disabled
Other 
Parameters
Description Range and Default

Spectrum24 Wireless LAN Adapter Product Reference Guide B 1
Appendix B Windows NT Network 
Configuration 
Parameters
Parameters
For PSP
Description Range and 
Default
Beacon 
Algorithm
the algorithm used to 
determine how often 
the adapter wakes up 
to check for data in 
the associated Access 
Point. A lower 
number means that 
the adapter wakes up 
more frequently. 
Algorithm 11 means 
that the adapter 
adapts to the traffic 
load.
Range: 1 - 11 
Default: 1
Beacon 
Maximum
specifies the highest 
number used (in PSP 
mode only) when the 
Beacon Algorithm is 
set to 11.
Range: 1 - 10 
Default: 10
Beacon 
Minimum
specifies the lowest 
number used when 
the Beacon Algorithm 
is set
to 11.
Range:1 - 10 
Default: 1

Windows NT Network Configuration Parameters
B 2 Spectrum24 Wireless LAN Adapter Product Reference Guide
Power Mode selects Continuously 
Aware Mode (CAM) 
or Power Saving 
Protocol (PSP) mode.
Range: CAM, PSP 
Default: CAM
Parameters
For MicroAP
Description Range and 
Default
802.11 Beacon 
Delay
frequency hops 
between broadcast 
DTIM transmissions 
(MicroAP only).
Range: 1 - 10 
Default: 1
802.11 Hop 
Sequence
frequency hopping 
sequence selection 
(MicroAP only).
Range: 1 - 79, 
255 = auto-select 
Default: 255 - 
auto-select
802.11Hop
Set
frequency hopping 
set selection
(MicroAP only).
Range: 1 - 3
Default: 1
MicroAP enables/disables 
MicroAP operation 
mode.
Range: Yes, No 
Default: No
MicroAP AP_ID MAP MAC address. Default: <Auto>
MicroAP Beacon 
Delay
frequency 'hops' 
between broadcast 
'beacon' 
transmissions 
(MicroAP and Symbol 
protocol only).
Range: 1 - 10 
Default: 10
MicroAP Hop 
Sequence
frequency hopping 
sequence selection 
(MicroAP and Symbol 
protocol only).
Range: 1 - 22, 
<Auto> = auto-
select
Default: <Auto>

Windows NT Network Configuration Parameters
Spectrum24 Wireless LAN Adapter Product Reference Guide B 3
Parameters 
for Rate 
Control
Description Range And Default
1 Megabit 
Support
indicates how
1 Mbps data rate
is supported.
Range: No, Yes, 
Mandatory Default: Yes
2 Megabit 
Support
indicates how
2 Mbps data rate
is supported.
Range: No, Yes, 
Mandatory Default: Yes
Other 
Parameters
Description Range And 
Default
Card Type identifies the physical 
form factor and bus
type for the Spectrum24 
adapter.
Range: PCMCIA, 
WPOS/ISA
Default: PCMCIA
Diversity enables/disables 
secondary antenna.
Range: Yes-Dual, 
No-Single
Default: No
ESS_ID identifies the ESS 
(Extended Service Set)
ID for the network with 
which the adapter 
associates.
Range: any 
displayable ASCII 
character string up 
to 32 characters 
long. Default: "101"
Net_ID AP or MicroAP network 
identifier (Net_ID Symbol 
protocol only).
Range: any string of 
displayable ASCII 
characters up to 32 
characters long.
Default: 0x101

Windows NT Network Configuration Parameters
B 4 Spectrum24 Wireless LAN Adapter Product Reference Guide
802.11 
Mandatory
BSS ID
specifies a BSS ID (IEEE 
address) for an Access 
Point with which this
unit associates.
Range: Any valid 
IEEE address.
Default: 0 (none)
802.11 
Preferred
BSS ID
specifies a BSS ID 
address (IEEE address)
for an Access Point with 
which this unit associates.
Range: Any valid 
IEEE address.
Default: 0 (none)

Spectrum24 Wireless LAN Adapter Product Reference Guide C 1
Appendix C Windows NT/95
Utilities Setup
C.1 Windows NT 4.0 and Windows 95 S24INFO
C.1.1 Preparation.
Before installing S24INFO on NT 4.0 or Windows 95 
systems, verify or obtain the following:
•The system is running Windows NT 4.0 or
Windows 95.
•A Spectrum24 driver is installed and configured.
•A Spectrum24 transport is installed.
•A Spectrum24 card is installed.
•Ten megabytes of available disk space.
•S24INFO utility software.
Install S24INFO utility after successfully installing the 
Spectrum24 adapter on the computer. 
C.1.2 Installing S24INFO
1. Insert the S24INFO installation disk #1 into the
floppy drive.
2. Click the Start Button. Select Run.
3. Enter A:setup in the Run Dialog text box. Enter the 
correct drive and path for location of setup program, if 
location differs from the example. Click OK.
4. Continue to follow the SETUP program through the 
S24INFO installation process.

Windows NT/95 Utilities Setup
C 2 Spectrum24 Wireless LAN Adapter Product Reference Guide
C.1.3 Starting S24INFO
1. Click Start.
2. Click Programs.
3. Click Symbol Technologies 
4. Open S24INFO. 
If a shortcut to S24INFO was placed on the desktop 
during installation, double-click shortcut to start S24INFO.
C.1.4 Uninstalling S24INFO
1. Open Control Panel.
2. Open the Add/Remove Programs applet.
3. Click on item in list.
4. Continue to follow the S24INFO uninstall program.
C.2 Windows NT 3.51 S24INFO
C.2.1 Preparation. 
Before installing S24INFO on NT 3.51 verify or obtain
the following:
•The system is running Windows NT 3.51.
•A Spectrum24 Driver is installed and configured.
•A Spectrum24 Transport is installed.
•A Spectrum24 card is installed.
•Ten megabytes available hard-disk space.
•S24INFO utility software.

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 3
Install S24INFO utility after successfully installing the 
Spectrum24 adapter on the computer.
C.2.2 Installing S24INFO
1. Insert the S24INFO installation disk #1 into the
floppy drive.
2. Open Program Manager.
3. Click File from the file menu bar.
4. Click Run, enter A:setup Enter the correct drive and 
path for the location of setup program, if location 
differs from the example. Click OK.
5. Continue to follow the SETUP program through
the installation process (additional diskettes can
be required).
C.2.3 Starting S24INFO
1. Open the Program Manager.
2. Open the Symbol Technologies Program Group.
3. Open the S24INFO applet. 
C.2.4 Uninstalling S24INFO
1. Open the Program Manager.
2. Open Symbol Technologies folder.
3. Open the Uninstall S24INFO applet and follow 
through with all the uninstall procedures.

Windows NT/95 Utilities Setup
C 4 Spectrum24 Wireless LAN Adapter Product Reference Guide
C.3  Windows NT 4.0 and Windows 95 S24UTIL
C.3.1 Preparation.
Before installing S24UTIL on NT 4.0 or Windows 95 
systems verify or obtain the following:
•The system is running Windows NT 4.0 or
Windows 95.
•A Spectrum24 Driver is installed and configured.
•A Spectrum24 Transport is installed.
•A Spectrum24 card is installed.
•S24UTIL Utility software.
Install S24UTIL after successfully installing the Spectrum24 
adapter on the computer.
C.3.2 Installing S24UTIL 
1. Insert the S24UTIL installation disk 1 into the
floppy drive.
2. Click the Start Button. Select Run. 
3. Enter A:setup in the Run Dialog box. Click OK (enter 
the correct drive and path for location of setup 
program, if location is different than the example).
4. Continue to follow the SETUP program through the 
S24UTIL installation process (additional diskettes can
be required).
C.3.3 Starting S24UTIL
1. Click Start.
2. Click Programs.
3. Click Symbol Technologies.

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 5
4. Open S24UTIL. 
If a shortcut to S24UTIL was placed on the desktop during 
installation, double-click shortcut to start S24UTIL.
C.3.4 Uninstalling S24UTIL
1.  Open Control Panel.
2. Open the Add/Remove Programs applet.
3. Click on item in list.
4. Continue to follow the S24UTIL uninstall program.
5. Windows NT 3.51 S24UTIL.
C.4  Windows NT 3.51 S24UTIL
C.4.1 Preparation.
Before installing S24UTIL on NT 3.51 systems verify or 
obtain the following:
•The system is running Windows NT 3.51.
•A Spectrum24 Driver is installed and configured.
•A Spectrum24 Transport is installed.
•A Spectrum24 card is installed.
•Ten megabytes available hard-disk space.
•S24 Utility software.
Install S24UTIL after the successfully installing the 
Spectrum24 adapter driver and Spectrum24 transport.

Windows NT/95 Utilities Setup
C 6 Spectrum24 Wireless LAN Adapter Product Reference Guide
C.4.2 Installing S24UTIL
1. Insert the  S24UTIL installation disk #1 into the
floppy drive.
2. Open Program Manager.
3. Click File from the file menu bar and click Run.
4. Enter A:setup click OK.
5. Continue to follow the SETUP program through
the installation process (additional diskettes can
be required).
C.4.3 Starting S24UTIL
1. Open the Symbol Technologies Program Group.
2. Open the S24UTIL applet.
C.4.4 Uninstalling S24UTIL
1. Open Program Manager.
2. Open Symbol Technologies folder.
3. Open the Uninstall applet and follow uninstall 
procedures. 
C.5 Reinstalling S24UTIL or S24INFO
Unless the driver or transport layer has been removed or 
reinstalled, reconfiguring these drivers is necessary. To 
install S24UTIL or S24INFO on a computer that already 
has a copy running, follow the installation instructions 
above. The installation program finds the installed copy 
and uses its location as the default location for reinstalling. 
A backup copy of previously installed files generates.

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 7
C.5.1 Conversion
When converting from an existing 32-bit installation to 
new driver and transport versions, uninstall the old version. 
Use the update option for installing the new driver, and 
install the new transport.
C.6 Windows Utilities Description
The installation media contains utilities to diagnose a radio 
or network problem for use in Windows NT and Windows 
95. The operating environment the radio runs should not 
affect radio performance, for example range, RF error 
rates, roaming, etc. The 32-bit Spectrum24 utilities are: 
S24UTIL and S24INFO.
•S24INFO is a status utility similar in function to the 
DOS S_INFO tool. The S24INFO utility monitors a 
Spectrum24 adapter and displays adapter activity. 
Configure to display variables. The S24INFO utility 
provides access to a Spectrum24 WLAN adapter using 
a Windows NT 3.51/4.0 Workstation or Server or 
Windows 95. S24INFO supports both the Spectrum24 
PC Card adapter and ISA adapters in standard Mobile 
Unit (MU) configurations.
•S24UTIL is a configuration utility very similar to 
S_UTIL.

Windows NT/95 Utilities Setup
C 8 Spectrum24 Wireless LAN Adapter Product Reference Guide
C.7 Monitor Spectrum24 MU Mode
Figure 7-1: Monitor Spectrum24 Main Window (MU mode).
C.8 Using S24INFO
The S24INFO Monitor Spectrum24 MU window has four 
menu bar items.
•Click File and select Exit to close S24INFO. 
•Click Statistics to view additional tables on the main 
window. Available tables include Transmit, Receive
and Miscellaneous.
•Click APTable. The APTable provides statistics about 
individual Access Points (AP). The APTable appears 
beside the Transmit and Receive table.

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 9
•The Help menu provides access to the Help contents 
menu item and an About dialog that identifies the 
S24INFO version plus Spectrum24 drivers recognized 
in the system. Additional help appears when the cursor 
passes over a component on the screen, by displaying 
informative messages in the status bar.
S24INFO can run in either Monitor Spectrum24 MU mode 
for a MobileUnit or Monitor Spectrum24 MAP for Micro 
Access Point mode depending on the internal 
configuration of the Spectrum24 adapter. 
Figure 7-2: Monitor Spectrum24 Main Window with statistics.(MU 
mode)
•Transmit Statistics replaces the Association Events table 
located in the bottom left on the main window. 
•Receive Statistics appears in the bottom right of the 
window when activated.
•Miscellaneous locates in the upper right when 
activated.

Windows NT/95 Utilities Setup
C 10 Spectrum24 Wireless LAN Adapter Product Reference Guide
•Click the associated OK button to close the Transmit 
and Receive Statistics tables or select the checked 
Transmit or Receive items from the Statistics menu to 
close Transmit and Receive Statistics tables. 
•Select the checked Miscellaneous line, from the 
Statistics menu to close the Miscellaneous table. Refer 
to Statistics and Configuration Screen descriptions In 
MU Mode in this appendix for a detailed description 
of these tables.
Tables Update twice per second. Graphs update once
per second.
C.9 Statistics and Configuration Screen 
Descriptions In MU Mode
Status
Firmware adapter firmware version and date.
Country adapter country code. Standard 
indicates the standard hop set.
This field displays Japan, Korea, 
France, Spain, Israel or Belgium,
as appropriate.
IEEE Address indicates the Spectrum24 adapter 
MAC address.
Self Test Status verifies that the Spectrum24 adapter 
functions correctly.
Run Time elapsed time since adapter was 
started. This counter rolls over at 
approximately 36 hours. 

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 11
Counters go from 0 to a maximum value, and wrap back 
to zero.
Transmit
Total Host Packets the packet quantity transmitted by the 
Spectrum24 adapter.
Non-Directed Packets broadcast packets transmitted to APs 
without a specified recipient.
Directed Packets  packets transmitted to a specified 
recipient.
Total Bytes total bytes transmitted. The bar graph 
reflects hundreds of bytes per second.
Receive
Total Host Packets the packet quantity received by the 
Spectrum24 adapter.
Non-Directed Packetsbroadcast packets received by
the adapter.
Directed Packets packets received for a specified 
address.
Total Bytes total bytes received. The bar graph 
reflects hundreds of bytes per second.

Windows NT/95 Utilities Setup
C 12 Spectrum24 Wireless LAN Adapter Product Reference Guide
Counters go from 0 to a maximum value, and wrap back 
to zero.
Association Events
Status indicates if the Spectrum24 adapter 
is associated or unassociated with an 
AP (out of range).
Number of 
Associations
indicates how many times the 
Spectrum24 adapter has established 
or reestablished AP communication.
AP Count shows how many different APs the 
Spectrum24 adapter has available
for association.
Full Scans the complete scans used to 
determine communication quality. 
Even when not accessed a full scan 
occurs once each second.
Partial Scans the partial scans used to determine 
communication quality.
AP ID the identifier assigned to the AP.
BSSID displays the Basic Service Set 
IDentification number.
Configuration
Frequency displays the current Spectrum24 
adapter frequency.
Diversity If a second antenna is enabled 
diversity reads Yes. If not, diversity 
reads No.

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 13
Net ID the AP network identifier. Net ID or 
ESSID display depending on the 
internal protocol used by the 
Spectrum24 adapter.
ESSID the Extended Service Set Identifier 
displays the proper ID as returned by 
the Spectrum 24 adapter internal 
protocol. ESSID display depends on 
the internal protocol used by the 
Spectrum24 adapter.
Power Mode indicates Power Save Polling (PSP). 
Continuous Aware Mode (CAM) 
indicates the adapter constantly 
monitors activity.
Beacon Algorithm controls how often the mobile unit 
awakes. Only valid when using PSP 
Power Mode.
Beacon Minimum the minimum time lapse between 
beacon wake ups when using 
algorithm 11. The adapter uses 
algorithm 12 in PSP mode. When not 
using PSP Power mode with Beacon 
Algorithm 11 or 12 NA displays.
Beacon Maximum the maximum time lapse between 
beacon wake ups when using 
algorithm 11. The adapter uses 
algorithm 12 in PSP mode. When not 
using PSP Power mode with Beacon 
Algorithm 11 or 12 NA displays.

Windows NT/95 Utilities Setup
C 14 Spectrum24 Wireless LAN Adapter Product Reference Guide
Roaming Reason
AP No Transmit no AP transmissions received over a 
specified time period.
Poor Rx/Tx Quality poor transmission quality. The 
adapter uses internal diagnostics
to determine transmission quality.
It passes the rating to the S24INFO 
utility.
AP RSSI Too Low the adapter Received Signal Strength 
Indicator (RSSI) was weak.
AP Load Leveling the AP changed the MUs carried,
and balanced the MUs across
the network.
AP Dropped MU the AP quit serving the MU.
Power Mode Change the Mobile Unit has changed modes 
(from PSP to CAM, or CAM to PSP) 
and should reassociate.
Sleep the MU awakened and had to 
reassociate.
Host Command the times a Host Command caused 
a reassociation. 

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 15
Counters go from 0 to a maximum value, and wrap back 
to zero.
Transmit Statistics
Total Directed the information packets transmitted 
to a specific recipient.
  @1 MB shows transmission statistics for a
1 Mbps network.
  @2 MB shows transmission statistics for a
2 Mbps network. If 2 Mbps is not 
supported by or not enabled for
the adapter, NA displays in the
2 Mbps section.
Total Non-Directed the information packets transmitted 
without a specified recipient.
  @1 MB shows transmission statistics for a
1 Mbps network when no recipient 
is specified.
  @2 MB shows transmission statistics for a
2 Mbps network. If 2 Mbps is not 
supported by or not enabled for
the adapter, NA displays in the
2 Mbps section.

Windows NT/95 Utilities Setup
C 16 Spectrum24 Wireless LAN Adapter Product Reference Guide
Counters go from 0 to a maximum value, and wrap back 
to zero.
Receive Statistics
Total Directed the information packets sent expressly 
to the adapter.
  @1 MB the information packets sent expressly 
to the adapter at a 1 Mbps rate.
  @2 MB the information packets sent expressly 
to the adapter at a 2 Mbps rate. If
2 Mbps is not supported by or is not 
enabled for the adapter, NA displays 
in the 2 Mbps section.
Total Non-Directed total information packets received 
without a specified recipient.
  @1 MB the information packets received by 
the adapter at a 1 Mbps rate.
  @2 MB the information packets received by 
the adapter at a 2 Mbps rate. If
2 Mbps is not supported by or not 
enabled for the adapter, NA displays 
in the 2 Mbps section.

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 17
Hop Pattern, Hop Dwell, Mandatory BSS and Preferred BSS 
display depending on the internal protocol used by the 
Spectrum24 adapter. Counters go from 0 to a maximum 
value, and wrap back to zero.
Miscellaneous
Rcvd Beacons AP beacons received by the 
Spectrum24 adapter. 
Hop Pattern specifies one of several frequency 
sequences.
Hop Dwell specifies how long to stay on a given 
frequency before switching to another 
frequency.
Mandatory BSS specifies the only MAC AP address 
where the MU can associate.
Preferred BSS the AP MAC address where the MU 
prefers to associate. The MU 
associates with another address when 
it cannot locate the preferred address.

Windows NT/95 Utilities Setup
C 18 Spectrum24 Wireless LAN Adapter Product Reference Guide
The AP Table displays information about APs accessible to 
the adapter. If the adapter associates with an AP in the AP 
table, the appropriate adapter line highlights. Net ID and 
AP ID display depending on the internal protocol used by 
the Spectrum24 adapter.
AP Table
IEEE Address Or
BSSID
the AP MAC address.
Age Out sets to maximum value on signal 
receipt. The adapter sends an 
acknowledgment signal. If 
verification does not return before the 
value counts down to zero, the AP  
deletes from the table.
Net ID the Network IDentification assigned 
to the AP.
AP ID provides the AP IDentifier assigned to 
the AP.
Hop the hop sequence the AP uses.
RSSI the Received Signal Strength 
Indicator signal quality evaluation 
comes from the adapter.
# MUs MUs associated with the AP.

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 19
Figure 7-3: Monitor Spectrum24 Main Window (MAP mode).
S24INFO can run in either Monitor Spectrum24 MU mode 
for a Mobile Unit or Monitor Spectrum24 MAP for Micro 
Access Point mode depending on the internal 
configuration of the Spectrum24 adapter. 
The S24INFO Monitor Spectrum24 MAP window has four 
menu bar items.
•Click File and select Exit to close S24INFO.
•Click Statistics to view additional tables. Available 
tables include Transmit, Receive, and Miscellaneous.
•Click MU Table. The MU Table provides statistics 
about individual Mobile Units (MU). The MU Table 
appears beside the Transmit and Receive tables.

Windows NT/95 Utilities Setup
C 20 Spectrum24 Wireless LAN Adapter Product Reference Guide
•The Help menu provides access to the Help contents 
menu item and an About dialog that identifies the 
version of S24INFO plus Spectrum24 drivers 
recognized in the system. Additional help appears 
when the cursor passes over a component on the 
screen, by displaying informative messages in the 
status bar.
Figure 7-4: Monitor Spectrum24 Main Window with statistics
(MAP mode).
C.10 Statistics and Configuration Screen 
Descriptions In MAP Mode
Status
Firmware adapter firmware version and date.
Country adapter country code. Standard indicates 
the standard hop set. This field displays 
Japan, Korea, France, Spain, Israel, or 
Belgium, as appropriate.

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 21
IEEE Address indicates the Spectrum24 adapter MAC 
address.
Self Test Status verifies that the Spectrum24 adapter is 
functioning correctly.
Run Time elapsed time since adapter was started. 
This counter rolls over at approximately 
36 hours.
Transmit
Total Host 
Packets 
the packet quantity transmitted by the 
Spectrum24 adapter.
Non-Directed 
Packets 
broadcast transmitted to APs without a 
specified recipient.
Directed Packets  packets transmitted to a specified 
recipient.
Total Bytes total bytes transmitted. The bar graph 
reflects hundreds of bytes per second.

Windows NT/95 Utilities Setup
C 22 Spectrum24 Wireless LAN Adapter Product Reference Guide
Counters go from 0 to a maximum value, and wrap back 
to zero. The associated bar graph shows activity over the 
last second.
Counters go from 0 to a maximum value, and wrap back 
to zero.
Receive
Total Host 
Packets
the packet quantity received by the 
Spectrum24 adapter.
Non-Directed 
Packets
broadcast packets received by the 
adapter.
Directed Packets packets received for a specified address.
Total Bytes total bytes received. The bar graph reflects 
hundreds of byte per second.
Association Events
Associated MU Count the Mobile Units (MUs) associated 
with this MAP.

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 23
Configuration
Frequency displays the current Spectrum24 
adapter frequency.
Diversity If a second antenna is enabled 
Diversity reads Yes. If not, Diversity 
reads No.
Net ID the AP Network Identifier. Net ID and 
ESSID display depending on the 
internal protocol used by the 
Spectrum24 adapter.
ESSID The Extended Service Set IDentifier 
displays the proper ID as returned by 
the Spectrum 24 adapter internal 
protocol. ESSID displays depending 
on the internal protocol used by the 
Spectrum24 adapter.
Power Mode PSP indicates Power Save Polling. 
Continuous Aware Mode (CAM) 
indicates the adapter constantly 
monitors activity.
Xmt Rate current transmission rate.
Max Rate maximum transmission rate 
available.

Windows NT/95 Utilities Setup
C 24 Spectrum24 Wireless LAN Adapter Product Reference Guide
Counters go from 0 to a maximum value, and wrap back 
to zero.
Transmit Statistics
Total Directed the information packets transmitted 
to a specific recipient.
  @1 MB shows transmission statistics for a
1 Mbps network.
  @2 MB shows transmission statistics for a
2 Mbps network. If 2 Mbps is not 
supported by or is not enabled for 
the adapter, NA displays in the
2 Mbps section.
Total Non-Directed the information packets transmitted 
without a specified recipient.
  @1 MB shows transmission statistics for a
1 Mbps network when no recipient 
is specified.
  @2 MB shows transmission statistics for a
2 Mbps network. If 2 Mbps is not 
supported by or is not enabled for 
the adapter, NA displays in the
2 Mbps section.

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 25
Counters go from 0 to a maximum value, and wrap back 
to zero.
Receive Statistics
Total Directed the information packets sent expressly 
to the adapter.
  @1 MB the information packets sent expressly 
to the adapter at a 1 Mbps rate.
  @2 MB the information packets sent expressly 
to the adapter at a 2 Mbps rate. If
2 Mbps is not supported by or is not 
enabled for the adapter, NA displays 
in the 2 Mbps section.
Total Non-Directed total information packets received 
without a specified recipient.
  @1 MB the information packets received by 
the adapter at a 1 Mbps rate.
  @2 MB the information packets received
by the adapter at a 2 Mbps rate. If
2 Mbps is not supported by or is not 
enabled for the adapter, NA displays 
in the 2 Mbps section.

Windows NT/95 Utilities Setup
C 26 Spectrum24 Wireless LAN Adapter Product Reference Guide
Counters go from 0 to a maximum value, and wrap back 
to zero. Hop Pattern, Hop Dwell, Beacon Interval, and 
DTIM Interval display depending on the internal protocol 
used by the Spectrum24 adapter.
Miscellaneous Statistics
Rcvd Beacons AP beacons received by the 
Spectrum24 adapter. 
Hop Pattern specifies one of several frequency 
sequences.
Hop Dwell specifies how long to stay on a given 
frequency before switching to another 
frequency.
Beacon Interval the time between beacon packets.
DTIM the frequency of DTIM packets as a 
multiple of beacon packets. 
MU Table
IEEE Address the MU MAC address.
Mode the operating power mode of the 
Mobile Unit.
PSP MU ID or
MU ID 
the assigned identification number for 
the Mobile Unit when in PSP mode.
PSP or PSP Que The transmit buffers pending Mbps. The 
queue for this MU when in PSP mode.
Rate The transmit rate available for this MU.
Transmits The messages sent by the MU.
Receives The messages received by the MU.

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 27
MU Table displays information about MUs associated with 
the adapter.
PSP MU ID, MU ID, PSP, PSP Que, and Rate display 
depending on the internal protocol used by the 
Spectrum24 adapter.
C.11 S24INFO Troubleshooting Hints
C.11.1 Symptom: Adapter not communicating
The Spectrum24 PCMCIA or ISA adapter does not 
communicate. Check the following:
•Ensure the PCMCIA adapter seats firmly in the
PCMCIA slot.
•Ensure the ISA adapter seats firmly in the ISA slot.
•Verify the installation of the Spectrum24 Adapter
and Driver.
•Ensure the Spectrum24 Adapter is selected.
•Check the NET_ID or ESS_ID of the adapter to verify 
the correct setting.
•If running TCP/IP protocol, use a valid IP Address.
•Verify TCP/IP protocol is bound to the adapter.
•In Windows 95, check device manager for IO Address 
and IRQ conflicts.
•In Windows NT, select a different interrupt.
C.11.2 Symptom: Adapter associated but not 
communicating
The Spectrum24 adapter attaches to the AP, but does not 
communicate. Check the following:

Windows NT/95 Utilities Setup
C 28 Spectrum24 Wireless LAN Adapter Product Reference Guide
•In Windows 95, check device manager for IO Address 
and IRQ conflicts.
•In Windows NT, select a different interrupt.
C.11.3 Symptom: Out of Memory Error
S24INFO or S24UTIL do not run or produce Out of 
Memory Errors. Verify the following:
•Ensure the Transport is installed and bound to the 
Spectrum24 adapter.
C.12 Using S24UTIL
S24UTIL allows the user to get information from the 
Spectrum24 adapter, and temporarily change some 
settings in the Spectrum24 Driver.
S24UTIL main menu contains two items.
•Click File and select Exit to close S24UTIL or click Exit.

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 29
•The Help menu provides access to the Help contents 
and About dialog that identifies the version of S24UTIL 
plus Spectrum24 Drivers recognized in the system. 
Additional help appears when the cursor passes over 
a component on the screen by displaying informative 
messages in the status bar.
Figure 7-5:  S24UTIL Main Window
•The S24UTIL window consists of two frames.
•The top frame contains option buttons. Select the 
appropriate button for the desired utility.
•Clicking Apply executes the utility selected and 
displays relevant information in the Feedback frame.

Windows NT/95 Utilities Setup
C 30 Spectrum24 Wireless LAN Adapter Product Reference Guide
C.13 Utility Frame
The Display Adapter Configuration Info option button 
displays basic configuration information about the 
Spectrum24 WLAN Adapter. The table below lists the 
information displayed after clicking the Apply button. 
Adapter Association indicates if the adapter is associated 
or not associated.
IRQ shows the IRQ used by the adapter.
I/O Address displays the Spectrum24 I/O 
address.
Memory Address displays the Spectrum24 adapter 
base memory address.
Net ID the hexadecimal address of the 
network where the adapter 
associated. The decimal value 
appears in parenthesis. This 
parameter displays only if the 
Spectrum24 adapter is using the 
Spring Protocol.
ESSID the Extended Service Set Identifier. 
This parameter displays only if the 
Spectrum24 adapter is using the 
802.11 protocol. The symbols > and 
< delimit the ESSID.
Firmware displays the version and date of the 
Spectrum24 adapter firmware.
Driver Version displays the version of the 
Spectrum24 adapter driver installed 
in the system.

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 31
Click the Set Preferred AP_ID (Spring Protocol) Option 
button to set the Preferred AP_ID for the adapter. When 
selected a Roaming Type radio button group appears 
under the Help button. 
Click the Set Preferred BSSID (802.11 Protocol) option 
button to set the adapter Preferred BSSID. When selected,
a Preferred BSSID dialog box and Mandatory BSSID dialog 
box appear under the Help button.
Country Code adapter country code. Standard 
indicates the standard hop set.
This field displays Japan, Korea, 
France, Spain, Israel or Belgium
as appropriate.
IEEE Address indicates the Spectrum24 adapter 
IEEE MAC address.
Roaming Types
Normal the Feedback frame acknowledges 
the roaming setting.
Preferred asks for the hexadecimal ID of the 
desired AP association. See a 
network administrator for information 
about AP ID. 
Exclusive asks for the hexadecimal ID of the 
desired AP association. Association 
limits to the specified AP. See the 
network administrator for information 
about AP ID.

Windows NT/95 Utilities Setup
C 32 Spectrum24 Wireless LAN Adapter Product Reference Guide
Enter the IEEE MAC address for the Preferred and 
Mandatory Access Points. Entering zeros tells the 
Spectrum24 Adapter it is OK to associate with any
Access Point.
The Display Net_ID/AP_ID Info (Spring Protocol) option 
button displays information about AP association status 
and Net_ID. The following information displays for 
Net_ID/AP_ID Info:  
The Display ESSID/BSSID Info (802.11 Protocol) option 
button displays information about AP association status 
and ESSID. The following information displays for ESSID/
BSSID Info:
Adapter Association indicates if the adapter is associated 
or not associated.
Net ID the hexadecimal address of the 
network where the adapter 
associated. The decimal address 
displays in parenthesis.
AP ID the hexadecimal address of the AP 
where the adapter associated. The 
decimal address displays in 
parenthesis.
Preferred AP ID the desired AP ID if set, otherwise 0.
AP IEEE Address indicates the AP IEEE MAC address.
ESSID The Extended Server Set IDentifier (up 
to 32 characters).
BSSID the IEEE MAC address of the AP 
where the adapter is associated.
Preferred BSSID the desired BSSID if set, otherwise 00 
00 00 00 00 00.

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 33
The Display Adapter Info/Statistics displays statistical 
information kept by the adapter. Click Apply to display the 
following information: 
Mandatory BSSID the mandatory BSSID if set, otherwise 
00 00 00 00 00 00.
Adapter Association indicates if the adapter is associated 
or not associated.
Power Mode designates whether Spectrum24
is operating in CAM (Continuous 
Aware Mode) or PSP (Power Saving 
Poll) mode.
Beacon Algorithm the PSP mode Beacon Algorithm 
determines how often the adapter 
wakes up to check for data. Setting 
this to 1 wakes more often. Setting 
this to 10 wakes less often.
Transmitter Status (Tx) the transmitter is either Enabled
or Disabled.
Net ID the hexadecimal address of the 
network where the adapter 
associated. The decimal address 
displays in parenthesis. This 
parameter displays only when using 
Spring Protocol.
AP ID the hexadecimal address of the AP 
where the adapter associated. The 
decimal address displays in 
parenthesis. This parameter displays 
only when using Spring Protocol.

Windows NT/95 Utilities Setup
C 34 Spectrum24 Wireless LAN Adapter Product Reference Guide
Click the Set Net_ID (Spring Protocol) option button to 
enter a new Net_ID for the Spectrum24 adapter in the 
dialog box provided. Valid Net_IDs range from 0 to 255 
decimal (0 to FF hex). Click Apply to set the Net_ID. The 
feedback should be as follows: 
ESSID the Extended Service Set Identifier. 
Up to 32 characters. This parameter 
displays only when using 802.11 
protocol.
BSSID the IEEE MAC address of the AP 
where the adapter is associated. This 
parameter displays only when using 
802.11 protocol.
Association ID displays the AP ID where the 
Spectrum24 adapter associated.
Radio shows the radio version the 
Spectrum24 adapter uses. Version 1 
notes as X, version 2 through 4 note 
as A.
AP Count the APs listed in the Spectrum24
AP table.
Full Scans full scans performed by the 
Spectrum24 adapter.
Partial Scans partial scans performed by the 
Spectrum24 adapter.
Request Accepted verifies the computer received the 
new ID.
The Net ID has been 
set to xxx (xxx).
states the present Net ID setting.

Windows NT/95 Utilities Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide C 35
Click the Set ESSID (802.11 Protocol) option button to 
enter a New ESSID for the Spectrum24 adapter in the 
dialog box provided. Valid ESSIDs can be any character, 
and can be up to 32 characters long. Click Apply to set the 
ESSID. The feedback should be as follows:
Click the Set Power Save Mode option button to change 
the adapter power parameters. A Power Mode option 
button group appears below the Help button. Select the 
appropriate power mode parameter. Allows entering the 
Beacon Algorithm, Min and Max values for PSP timers in 
the dialog boxs provided.
Request Accepted verifies the computer received the 
new ID.
The ESSID has been 
set to >xxx<.
states the present ESSID setting.
PSP Power Save Polling mode-This setting 
allows the adapter to sleep between 
checking for network activity. A 
sleeping adapter saves power. Also 
allows entering the Beacon 
Algorithm, Min and Max values for 
PSP timers.
CAM Continuous Aware Mode-This setting 
tells the adapter to continually check 
for network activity. This mode uses 
the most power.

Windows NT/95 Utilities Setup
C 36 Spectrum24 Wireless LAN Adapter Product Reference Guide
Symbol Technologies recommends PSP mode for battery 
powered devices. PSP Mode coupled with Beacon 
Algorithm 11, Min 1, Max 10 are good power saving 
parameter settings.
Click Apply, the feedback frame displays:
Request accepted.
The following change is now in effect:
Power Save Mode: Continuously Aware Mode
           or
Power Save Mode: Power Saving Polling Mode
Beacon Algorithm: 11
Beacon Minimum:    1
Beacon Maximum:    10
The Sleep option button puts the adapter in to sleep mode. 
Resume awakens the adapter. Click Apply to set the 
adapter sleep state.
The Set Device to MicroAP / MU radio button sets the 
Spectrum24 adapter into either MicroAP mode where it 
acts as a Micro Access Point, or into MU mode where it 
acts as a Mobile Unit. The Net ID or ESSID can be altered 
prior to clicking the Apply button.

Spectrum24 Wireless LAN Adapter Product Reference Guide D 1
Appendix D Spectrum24 DOS 
Keywords
Keywords For 
Power Saving Mode
Description
Beacon_Alg selects the beacon algorithm (1-12) 
for every nth beacon. Beacons 
broadcast every 100 ms, 1 selects 10 
polls per second. Selecting 1 
provides the best performance while 
10 provides the highest power 
saving. Selecting 11 selects a 
dynamic algorithm that varies from 
the Beacon_Maximum to the 
Beacon_Minimum. Algorithm 11 uses 
Beacon_Minimum with network traffic 
for the unit and extends to 
Beacon_Maximum without traffic. 
Selecting 12 selects an algorithm 
where the WLAN adapter switches 
from PSP-11 to CAM automatically 
depending on data traffic (PSP only). 
Also recognizes Beacon_Algorithm 
for backward compatibility.
Beacon_Minimum programs the minimum beacon 
interval for the dynamic algorithms. 
Default is 1. (PSP, Algorithm
11/12 only)
Beacon_Maximum programs the maximum beacon 
interval for the dynamic algorithms. 
Default is 10. (PSP, Algorithm
11/12 only)

Spectrum24 DOS Keywords
D 2 Spectrum24 Wireless LAN Adapter Product Reference Guide
Powermgmt sets power management option. The 
default is 'No' for CAM. 'Yes' sets the 
card to PSP mode.
Keywords For 
MicroAP Mode 
Only
Description
MicroAP enables Micro AP operation when
set to ‘Yes’. If enabled, the 
PowerMgmt keyword is ignored and 
the meaning of the Tx_Rate and 
Ess_ID keywords change.
MicroAP_Hop_Set specifies the Hop Set used by the
Micro AP. 
MicroAP_Hop_Seq  specifies the Hop Sequence used by 
the Micro AP.
MicroAP_BDelay specifies the delay for broadcast 
packets being transmitted from
the MAP.
Base_Rate (MAP Only) set to 1 or 2 to require 
associating MUs to operate at 1 
Mbps or 2 Mbps. This keyword can 
be used multiple time to require 
multiple data rates. If the MU is not 
capable of the required data rate(s),
it cannot associate with this MAP.
Keywords For 
Power Saving Mode
Description

Spectrum24 DOS Keywords
Spectrum24 Wireless LAN Adapter Product Reference Guide D 3
Keywords for 
CSS and Plug 
and Play Clients
Description
Cardservices enables card services installation if no 
parameter is present or if the parameter 
is Yes. Requires I/O mode ‘No’ 
disables. Plug and Play keyword cannot 
be present or set to No.
Socketservices enables socket services installation if no 
parameter or if the parameter is ‘Yes’ 
(requires I/O mode). 'No' disables PNP 
keyword cannot be present or set
to ‘No’.
PNP sets the driver to require the presence of 
slainit.exe. Default is ‘No’ if slainit.exe 
is not loaded, preventing the driver 
from loading. This keyword forces 
Mode to IO and ignores the Interrupt, 
IOAddress and Memory keywords.
Keywords In 
MicroAP Or
MU Mode
Description
Interrupt designates the port hardware interrupt 
(3 to 15). Default is 5. In protocol.ini 
the keyword Int is supported.
IOAddress I/O address (0x240 to 0x380) for
the adapter. Default is 0x300. Also 
recognizes IOADDRESS for backward 
compatibility. This is a hex number.

Spectrum24 DOS Keywords
D 4 Spectrum24 Wireless LAN Adapter Product Reference Guide
Memory resource memory location (0xC000 to 
0xE800). Default is 0xD000. Memory 
mode uses the 32Kb block; I/O Mode 
uses the 4Kb block. Verify the 
designated memory block is reserved 
using an extended memory manager 
(e.g. EMM386.EXE with the 'x= option 
for DOS). In protocol.ini, the keyword 
Mem is also supported. This is a
hex number.
Tx_Rate set to 1 or 2 to enable operation at
1 Mbps or 2 Mbps. Use this keyword 
multiple time to enable multiple data 
rates. If the Adapter is not capable of 
the requested data rate, the entry is 
ignored.   If this keyword is not entered, 
the Adapter operates at all data rates it 
can. If the Adapter is setup to be a MAP, 
this entry means that the associating 
MUs can optionally use this data rate.
Mode Add Mode to the file to set I/O mode. If 
Mode is not in file, the PCMCIA 
interface is set to memory mode 
(default). I/O mode requires 16 bytes of 
I/O space, 4Kb of attribute memory. 
Memory mode requires 16 bytes of I/O 
space, 32Kb of memory (4Kb attribute 
or 32Kb common memory). In memory 
mode the attribute and common 
memory start at the same segment 
address. Only 8-bit I/O is supported.
Keywords In 
MicroAP Or
MU Mode
Description

Spectrum24 DOS Keywords
Spectrum24 Wireless LAN Adapter Product Reference Guide D 5
ESS_ID sets the ESS_ID. Default is "101". The 
ESS_ID is a 32-character, case sensitive 
string. In net.cfg, quotes are not 
required unless spaces are needed in 
the ESS_ID. In protocol.ini quotes are 
required. Symbol recommends using 
quotes.
The ESS_ID string "BRDCST" is reserved 
and places the Adapter into the 
broadcast ESS_ID mode. In this mode 
the Adapter adopts the ESS_ID of the 
first AP that it finds, and continues to 
roam with that ESS_ID until rebooted. 
If in the MAP mode, this value is used as 
the ESS_ID of the MAP. Symbol supports 
the following alternate keywords for 
backward compatibility: DOMAIN, 
RF_NETWORK_ID, NET_ID.
PCMCIA_IO sets alternate PCMCIA controller I/O 
address. The default is 3E0. Other 
possibilities are 3000 and FCFC.
This is a hex number.
Unittype for ISA adapter, set to 2000. Not 
applicable for PC Card or the ISA
Plug and Play adapter.
Keywords In 
MicroAP Or
MU Mode
Description

Spectrum24 DOS Keywords
D 6 Spectrum24 Wireless LAN Adapter Product Reference Guide
Neither file is case sensitive. Use of case is by preference. 
The only exception is the ESS_ID argument, which is
case sensitive.
Keyword Format In 
PROTOCOL.INI
Description
KEYWORD=YES in protocol.ini all arguments to a 
keyword require an '=' between the 
keyword and the argument.
KEYWORD=0x3E0 in protocol.ini prefix all hex numbers 
with an ‘0x’.
Keyword Format In 
NET.CF
Description
KEYWORD YES in net.cfg only a space is required.
KEYWORD 3E0 in net.cfg this is not required,
but a hex number has to be used 
where expected and a decimal point 
used elsewhere.

Spectrum24 Wireless LAN Adapter Product Reference Guide E 1
Appendix E Spectrum24 DOS Utilities 
The flash utility programs included on the diskette are 
compatible with PCs using an Intel/Cirrus (PCIC) 
compatible PCMCIA interface. S_WFA, S_INFO and do 
not require a specific PCMCIA interface. 
For information on the 32-bit Windows utilities, refer to 
32-Bit Spectrum24 Utilities in Appendix C. Load Slainit.exe 
before running utilities. ISA Plug and Play adapter requires 
Slainit.exe loaded to function.
E.1 S_WFA
This utility functions in MU mode only. In some situations, 
the S_WFA utility provides a short waiting period after 
running the driver and before attaching to the network. 
The utility waits for the MU to associate with an AP
before continuing.
At the DOS prompt, enter:
s_wfa
The system displays:
S_WFA Version 4.xx
SLAAPI found at 096E
Waiting for MU Association
Type any key to abort..
  Firmware: V4.xx   Date: xxxxxx
   Country: Standard
    ESS_ID: S24NET
  MAC Adrs: 00 A0 F8 21 56 3D
Searching. Adapter is associated:
      Mode: CAM
     Scans: 0
   AP IEEE: 00 A0 F8 3D 21 56

Spectrum24 DOS Utilities
E 2 Spectrum24 Wireless LAN Adapter Product Reference Guide
E.2 S_UTIL
S_UTIL is a DOS-utility program that can configure the 
adapter and obtain statistics. S_UTIL runs only after the 
driver has been installed.
The program provides a list of available commands in the 
absence of a command line parameter. Each command 
requires a one-letter code to display current configuration 
parameters or statistics. Some commands allow optional 
parameters to change driver/firmware settings only for the 
current session.
At the DOS prompt, enter:
s_util <func> [parms]:
where func and parms:
Adisplays LAN adapter configuration 
including interrupt, I/O address, 
memory address, ESS_ID, firmware 
version, IEEE table number (country 
code) and IEEE MAC address.
Bdisplays the BSS_IDs of the 
associated AP, preferred AP and 
mandatory AP. 
B [hh hh hh hh hh hh] sets the preferred AP BSS_ID for the 
adapter to associate. The BSS_ID 
represents the AP MAC address.
Csets the unit to CAM. The P 
parameter sets it to PSP. (MU
mode only).
E <ESS_ID String> sets the 32-character ESS_ID for
the adapter.

Spectrum24 DOS Utilities
Spectrum24 Wireless LAN Adapter Product Reference Guide E 3
I <all> displays association status, power 
mode, beacon algorithm and 
transmit status. This also displays
the ESS_ID, station ID and radio 
type. The last line shows the APs
in the AP table and the number
of scans. The all option displays 
additional transmit and receive 
statistics. S_INFO also provides
this information.
J [hh hh hh hh hh hh] sets the mandatory AP BSS_ID
for the adapter to associate.
The BSS_ID represents the AP
MAC address.
L <value> get/set options that apply only to 
Symbol radio terminals. The value 
40 selects no power down in 
Symbol terminals, and the value 20 
automatically powers down the 
terminals in a cradle.
O <option> sets the firmware option for
the adapter.
Psets the unit to PSP mode. The C 
parameter sets it to CAM. (MU
mode only)
T <u> [v] [w] get/set beacon parameters. The u 
parameter indicates the algorithm. 
The v parameter indicates the 
minimum beacon interval. The w 
parameter indicates the maximum 
beacon interval. (MU mode only)

Spectrum24 DOS Utilities
E 4 Spectrum24 Wireless LAN Adapter Product Reference Guide
E.3 Examples
With no parameters, S_UTIL displays:
Spectrum24 API Utility V1.06a
Usage: S_UTIL <function code> [<optional parameters>,,,]
Function codes and [optional] parameters:
  A - Display Adapter Configuration info
  B - Display ESS_ID/BSS_ID info
  B <BSS_ID> - Set Preferred BSS_ID.  B X to clear
  C - Set Continuous Power Mode (CAM)
  E <ESS_ID String> - Set ESS_ID
  I - Display Adapter Info/Statistics
  J <BSS_ID> - Set Mandatory BSS_ID.  J X to clear
  L - Get/Set SYMBOL_OPTIONS (L <value> to set)
  O <option> - Set Firmware Option
  P - Set Power Save Mode (PSP)
  T - Display Beacon/PSP Parameters
  T [<Algorithm> [<min> [<max>]]] - Set Beacon parameters
  The following apply to the MicroAP -
  W - Display Access Control List (ACL)
  X <IEEE address> - Add ACL Entry
  Y <IEEE address> - Delete ACL Entry
  Z - Clear ACL
For example, to view current adapter parameters from the 
DOS prompt, enter:
s_util A
Used In MicroAP Only
Wdisplays the MicroAP ACL.
X<hh hh hh hh hh hh> adds a MAC address to the ACL. 
The ACL allows a maximum of 
16 entries. Duplicate ACL entries 
are not detected.
Y<hh hh hh hh hh hh> removes a MAC address from
the ACL.
Zclears the ACL of all entries.

Spectrum24 DOS Utilities
Spectrum24 Wireless LAN Adapter Product Reference Guide E 5
To set the ESS_ID to Department 1, from the DOS
prompt, enter:
s_util E “Department 1”
To set the beacon algorithm to 11 with a minimum of 2 
and a maximum of 10, from the DOS prompt, enter:
s_util T 11 2 10
The '2' and the '10' are optional.
To change the power mode to PSP, from the DOS prompt, 
enter:
s_util P
E.4 S_INFO
S_INFO provides a dynamic, full screen display of selected 
firmware statistics and configuration variables. It obtains 
the data through the driver extension get_adapterinfo and 
get_statistics functions, and it periodically refreshes the 
display with updated information. This utility can identify if 
the MU communicates properly.
At the DOS prompt, enter:
s_info

Spectrum24 DOS Utilities
E 6 Spectrum24 Wireless LAN Adapter Product Reference Guide
In MicroAP mode, the system displays:
***********SPECTRUM24 ADAPTER STATISTICS - MAP **********  V4.25  09/16/98 ***
Address 00A0F8-161CA8| Fw Ver    V4.28 | Tx Rate  1 Mb/Sec | Freq         2461
Country          STD | Selftest   PASS | Max Rate 1 Mb/Sec | Ass'd MUs       1
SSID          s24net | Diversity   OFF | Hop Pattern     0 | Bcn Interval  100
RunTime  00:00:00:00 |                 | Hop Dwell     100   | DTIM Interval  5 
********** TX Statistics ************************* RX Statistics *************
  Tx Host         1   B/Sec         0  |  Rx Host         2   B/Sec         0
  Tx NDir         3   Tx Bcn      960  |  Rx NDir         0
  Tx Dir         0                   |  Rx Dir         2 
****************************** Associated MUs ******************************* # 
Mode Adrs  ID Rat Fifo TxDir                 RxDir
 1 CAM 10461C  1   1    0     0                    3
 2 CAM 105623  2   2    0     0                    2
 3
 4
 5
 6
 7
 8
 9
10
11
12
F10|q = exit program

Spectrum24 DOS Utilities
Spectrum24 Wireless LAN Adapter Product Reference Guide E 7
In MU Mode, the system displays:
***********  SPECTRUM24 ADAPTER STATISTICS - MU **********  V4.25  09/16/98 ***
Address 00A0F8-161CA8| Fw Ver    V4.28 | Tx Rate  1 Mb/Sec | Freq         2421
Country          STD | Selftest   PASS | Max Rate 1 Mb/Sec | Status    ASSOC'D
SSID           s24net| Diversity   OFF | Hop Pattern    27 | Station ID      1
RunTime  00:00:00:54 |                 | Hop Dwell     100 | Power Mode    CAM
*********** TX Statistics ************************* RX Statistics************  Tx 
Host       163   B/Sec         0  |  Rx Host       168   B/Sec         0
Tx NDir         2                    |  Rx NDir        12   Rx Bcn      517
Tx Dir       161                   |  Rx Dir        162 
********************************* AP Table *********************************** # 
St AG BSSID   RS #MU Hp             | # St AG BSSID  RS #MU Hp
1*CE 0F 73DA7F 65   1  27             |11
2                                     |12
3                                     |13
4                                     |14
5                                     |15
6                                     |16
7                                     |17
8                                     |18
9                                     |19
10                                    |20
F10|q = exit program
To return to DOS, press ESC or ENTER.
The display includes configuration and status information, 
transmit statistics, receive statistics, roaming statistics, 
optional additional statistics and the known AP table.
E.5 Configuration/Status
S_INFO displays the standard information about the 
MicroAP or MU. A brief description of the display
content follows.

Spectrum24 DOS Utilities
E 8 Spectrum24 Wireless LAN Adapter Product Reference Guide
Address device MAC address.
Country the adapter country code. STD 
indicates the standard hop set for the 
adapter. In certain countries, this 
field displays Japan, Korea, France, 
Spain, Mexico, Belgium or Israel, as 
appropriate.
SS ID the ESS_ID.
Runtime the elapsed time since the adapter 
initialized.
Fw Ver the adapter firmware version
and date.
Selftest indicates adapter self-tests. A 
resulting PASS indicates no problem 
no problems were found. The 
positional bits below indicate each 
failed test.
Bit (hex) Corresponding test.
001 code checksum
002 received first-in-first-out (Rx 
FIFO)
004 transmitted first-in-first-out 
(Tx FIFO)
008 received direct memory 
access (Rx DMA)
010 transmitted direct memory 
access (Tx DMA)
020 radio configuration
040 radio loopback
080 real-time clock
100 CPU clock

Spectrum24 DOS Utilities
Spectrum24 Wireless LAN Adapter Product Reference Guide E 9
200 host interface
400 radio interface
800 random access memory 
(RAM)
Diversity indicates YES for diversity enabled or 
NO for single antenna selected.
Tx Rate displays the transmission data rate 
used by the adapter in Mbps.
Max Rate displays the maximum transmit rate 
available for use by the adapter
in Mbps.
Hop Pattern each hop set has a selection of hop 
patterns available. The field displays 
the hop pattern used by the AP that 
associates with the MU.
Hop Dwell displays the time between hops in
K-µs units.
Freq displays the current communication 
frequency for the adapter.
Status
(MU mode only)
displays the status for the MU.
Station ID
(MU mode only)
indicates the station ID number 
assigned to the MU during its
last association.
Power Mode
(MU mode only)
displays CAM or PSP
Ass'd MUs
(MicroAP mode only)
displays the total associated MUs.
Bcn Interval
(MicroAP mode only)
displays the time between beacon 
packets in 100 K-µs units.

Spectrum24 DOS Utilities
E 10 Spectrum24 Wireless LAN Adapter Product Reference Guide
E.5.1 Transmit Statistics
Transmit statistics indicate activity over the last second. This 
display is useful if background operations such as pings 
occur. Locate counters on the left side of the display.
E.5.1.1 Receive Statistics
Receive statistics indicate activity over the last second. This 
display is useful if background operations such as Pings 
occur. Locate counters on the right side of the display. 
DTIM Interval
(MicroAP mode only)
displays the frequency of DTIM 
packets as a multiple of beacon 
packets. This indicates how many 
beacons equal one DTIM cycle.
Tx Host the packets passed to the driver.
An interrupt conflict in the driver 
installation can occur when these 
fields equal 0 (zero).
Tx NDir the Nondirected packets transmitted.
Tx Dir the Directed packets transmitted.
B/Sec approximates the bytes per
second sent.
Tx Bcn
(MicroAP mode only)
the total beacons transmitted.
Rx Host the packets passed from the driver.
If these fields equal 0 (zero), an 
interrupt conflict in the driver 
installation can occur.
Rx NDir the Nondirected packets received.
Rx Dir the Directed packets received.
B/Sec approximates the bytes per second 
received.

Spectrum24 DOS Utilities
Spectrum24 Wireless LAN Adapter Product Reference Guide E 11
E.5.2 AP Table (MU Mode only)
The lower section is the AP table. The AP table contains the 
AP status, BSS_ID, hop sequence, RSSI and MU load 
information for all known APs.
Press PgUp and PgDn to display the second block of APs.
E.5.3 Associated MU Table (MicroAP Mode only)
The lower section is the associated MU table. The table 
contains the MU status, the ID assigned by the MicroAP, 
and transmit and receive statistics.
Rx Bcn
(MU mode only)
the total beacons received.
St the status byte. Sign bit indicates MU association 
with the AP.
AG the AP table entry age-out counter. An age-out 
counter of 0 through 8 maintains each AP table 
entry. Value 8 indicates an AP acknowledgment 
of an MU scan. A decreased value indicates 
non-acknowledgment. The MU removes an AP 
entry from the table when the age-out counter 
value decrements to 0.
BSS_ID the last 3 hexadecimal fields of the AP MAC 
address.
RS the AP RSSI value as measured by the MU.
#MU the MUs associated with the AP. The load 
information helps the MU determine when to 
roam. The number is always 0 (zero) if the MU 
associates with a MicroAP.
Hp the hop sequence used by the AP.
Mode displays the MU power-operating mode.
Adrs the MU MAC address.

Spectrum24 DOS Utilities
E 12 Spectrum24 Wireless LAN Adapter Product Reference Guide
Press PgUp and PgDn to display the second block of MUs.
E.5.4 Transmit And Receive Statistics Table
The transmit and receive statistics and graphs indicate 
activity over the last second. Use this display if background 
operations such as Pings occur. Counters locate on the left 
side of the display. The horizontal bar graph shows activity 
over the last second. 
E.6 S_VER
S_VER displays the version/date of the installed firmware. It 
also displays the Diversity mode status.
At the DOS prompt, enter:
s_ver
ID the station ID assigned by the AP at association.
Rat displays the current transmit rate available for 
the MU in Mbps.
FIFO the transmits buffers pending for this MU.
TxDir the fragments transmitted to this MU.
RxDir the fragments received to this MU.
Tx_Host and 
Rx_Host
the packets passed to and from the driver.
If these fields register 0 (zero), an interrupt 
conflict in the driver installation can exist.
NDir_U and 
Dir_U
the Nondirected and Directed packets.
Byte/sec approximates the bytes per second sent
and received.

Spectrum24 DOS Utilities
Spectrum24 Wireless LAN Adapter Product Reference Guide E 13
The system displays:
Spectrum24 LAN Adapter Version Display Utility, V4.xx
(C) Copyright 1996 Symbol Technologies, All Rights Reserved.
Card in slot 1
FIRMWARE: IEEE Addr: hh hh hh hh hh hh
                Ver: V4.xx
               Date: xxxxxx
            Country: United States (1)
         Diversity: ON
If using s_ver to display the CIS parameters, at the DOS 
prompt, enter:
s_ver -x
The system displays:
Spectrum24 LAN Adapter Version Display Utility, V4.xx
(C) Copyright 1996 Symbol Technologies, All Rights Reserved.
Card in slot 1
FIRMWARE: IEEE Addr: hh hh hh hh hh hh
                Ver: V4.xx
               Date: xxxxxx
            Country: United States (1)
            Diversity: ON
CIS:            Ver: Vx.xx
             Serial: 00032123
           Mfg Date: 00080896
          Dest Code: FW: USA
           Mfg Info: TSW:none
              Power: 500
                CkSum: CAE3
E.7 S_UPDATE
S_UPDATE updates the flash image with a new firmware 
file. The standard firmware file is SLA_FW.BIN. This 
program does not change the IEEE address or the country 
code. Locate S_UPDATE and the latest firmware file
in the FIRMWARE directory on the Installation and
Utilities diskette.

Spectrum24 DOS Utilities
E 14 Spectrum24 Wireless LAN Adapter Product Reference Guide
Do not run S_UPDATE after driver installation. Uninstall 
and reinstall the driver. The ISA Plug and Play WLAN card 
requires users to load SLAINIT.EXE prior to loading the 
driver or updating the firmware.
S_UPDATE requires an Intel compatible PCMCIA controller 
(Intel, Vadem, Cirrus or Ricoh), or card and socket services 
and SLAINIT. If using EMM386, reserve the memory 
location at D000-D0FF (X=D000-D0FF).
To update the adapter firmware:
At the DOS prompt, enter:
s_update
The system displays:
Spectrum24 LAN Adapter FLASH Update Utility, Vx.xx
Reading the firmware binary file (SLA_FW.BIN)...
Press any key to continue, CTRL-C to abort
Press any key. The system displays:
FIRMWARE: IEEE Addr: 00 A0 F8 00 04 D2
                Ver: 'V2.00'
               Date: '960320'
(AMD) Erasing flash... Operation successful
Programming Flash... ................................
When the program completes, it displays:
Programming operation successful
Update Operation completed
To display other program options for S_UPDATE, enter:
s_update -?

Spectrum24 Wireless LAN Adapter Product Reference Guide F 1
Appendix F WLAN Adapter 
Specifications
PC Card 
Physical
Dimensions
(less antenna)
3.3 inches x 2.1 in. x 0.2inches (85 mm x 
54 mm x 5 mm)
Weight
(with antenna)
1.6 oz (45.36 g)
Operating 
temperature 32 to 130 °F (0 to 54 °C)
Humidity 95% 95% maximum non condensing
Cargo/Packaged 6ft(1.8m) drop 5hz vibration Mil-Std 810E
Altitude 15,000 ft. (4.6 km) - Storage 8,000 ft. 
(2.4 km)- Operating
Vibration 2 G peak, sine; 0.02 G peak random 
(5Hz - 2000Hz)
Shock 40 G, 11mS, half sine
ESD meets CE-Mark
PCMCIA 
Compliance
Type II, Version x.xx, Card and Socket 
services x.xx
ISA Adapter Physical
Dimensions 6.2 in. x 4.2 in. (16 cm x 11 cm)
Weight 4.3 oz. (122 g)
Operating 
Temperature 32 to 100 °F (0 to 40 °C)
Storage 
Temperature -15 to 140 °F (-40 to 60 °C)

WLAN Adapter Specifications
F 2 Spectrum24 Wireless LAN Adapter Product Reference Guide
Humidity 95% max. non-condensing
Cargo/Packaged 6 ft. drop; 5 Hz vibration Mil-Std 810E
Altitude 15,000 ft. - Storage, 8,000 ft. - 
Operating
Vibration 2 G peak, sine; 0.02 G peak random 
(5Hz - 2000Hz)
Shock 40 G, 11 mS, half sine
ESD meets CE-Mark
ISA Adapter Physical
Radio
Frequency Range country dependent. Typically 2402 MHz 
to 2480 MHz
Frequency 
Hopping
hops
79 in US, Canada and Europe
35 in france and Israel
27 in Spain
23 in Japan and Korea
20 in belgium
27 in Mexico
Hop Rate 10 hops/sec 
Hop Sequences 66
Radio Data Rate 2 Mbps per channel
Radio Power 
Output
500 or 100 mW versions
Power 
Management
receive @ 5V
500mW=300mA

WLAN Adapter Specifications
Spectrum24 Wireless LAN Adapter Product Reference Guide F 3
100mW=300mW
transmit @ 5V
500mW=650mA
100mW=400mA
Range open environment over 1000 ft. (300 m). 
Typical office/retail environment over 180 
and within 250 ft. (56 to 76 m
TX Max. Radiated 
EIRP
US: FCC part 15.247
Europe: ETS 300 320
Japan: RCR STD-33
Modulation Binary GFSK
TX Out-of-Band 
Emissions
US: FCC part 15.247, 15.205, 15.209
Europe: ETS 300 320
Japan: RCR STD-33
Radio

WLAN Adapter Specifications
F 4 Spectrum24 Wireless LAN Adapter Product Reference Guide

Spectrum24 Wireless LAN Adapter Product Reference Guide G 1
Appendix G Roaming Across Routers/
Mobile IP Setup
G.1 Roaming Across Routers And Mobile IP 
Configuration 
The Spectrum24 WLAN supports Mobile IP (roaming 
across routers) when APs on the network are properly 
configured.
Refer to the Spectrum24 Access Point Model AP3020 User 
Documentation for details on the Access Point (AP) Mobile 
IP support of MUs.
G.2 Configuring the Adapter For Mobile IP in 
Windows 95
1. Open the Network applet from the Control Panel.
2. Select the Symbol Spectrum24 WLAN Adapter, and 
select the Properties button.

Roaming Across Routers/Mobile IP Setup
G 2 Spectrum24 Wireless LAN Adapter Product Reference Guide
3. When the Symbol Spectrum24 Configuration dialog 
appears, select the appropriate tab for Mobile IP.
4. When all values have been changed in the Mobile IP 
properties dialog, select the OK  button to save and 
exit or Cancel to abort and exit.
5. Restart the system for changes to take effect.
Refer to appendix A for the table containing a description 
of the parameters and the acceptable values.
G.3 Configuring the Adapter For Mobile IP In 
Windows NT 4.0/3.51
1. Open the Network applet from the Control Panel.
2. Select the Symbol Spectrum24 WLAN Adapter and 
click the Configure button. 

Roaming Across Routers/Mobile IP Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide G 3
3. Select Adapters, select the Symbol Spectrum24 WLAN 
Adapter and click the  Properties button.
4. When the Symbol Technologies Spectrum24 NT 
Installation dialog appears, Select Enable Mobile IP. 
Configure all values in the Mobile IP frame. When all 
values have been changed click the OK button to save 
and exit, click the Cancel button to abort and exit.
G.4 Configuring the Adapter For Mobile IP In DOS
G.4.1 Preparation
Before beginning Mobile IP set up verify or obtain the 
following:
•Spectrum24 installation disk
•an ASCII text editor
•home network IP address, home agent IP address,
subnet mask

Roaming Across Routers/Mobile IP Setup
G 4 Spectrum24 Wireless LAN Adapter Product Reference Guide
Copy files MIP.CFG and SLAMIP.COM from the installation 
disk to the driver directory. The file MIP.CFG contains 
configuration parameters for the Spectrum24 roaming 
across routers support. Edit the file before executing 
SLAMIP.COM.
The home_address, ha_address, and subnet_mask are 
required. The reg_interval is optional. If omitted, the 
default value is 60. The maximum value is 1800. An 
example of a MIP.CFG file without user configurable 
parameters follows:
For ODI, from the command line or in a batch file load the 
drivers in the following order:
MIP.CFG example Usage
home_address = xxx.xxx.xxx.xxx MU’s IP address
ha_address = xxx.xxx.xxx.xxx  Default home agent's IP address, 
used if powered up at a foreign 
network
subnet_mask = .xxx.xxx.xxx.xxx 
reg_interval = xxxx Registration time between 
renewals time is in seconds

Roaming Across Routers/Mobile IP Setup
Spectrum24 Wireless LAN Adapter Product Reference Guide G 5
If the automatic installation program was not used, copy 
the files as needed (LSL.COM, SL8ODIPC.COM) from the 
Drivers and Utilities Installation diskette to the appropriate 
driver directory on the hard disk.
LSL.COM
SL8ODIPC.COM
SLAMIP.COM
Refer to the Spectrum24 Access Point Model AP3020 User 
Documentation for details on the Access Point (AP) Mobile 
IP support of MUs.

Roaming Across Routers/Mobile IP Setup
G 6 Spectrum24 Wireless LAN Adapter Product Reference Guide

Spectrum24 Wireless LAN Adapter Product Reference Guide H 1
Appendix H Troubleshooting
H.1 Windows 95 Troubleshooting Tips 
Use the tools provided by Windows 95, the Spectrum24 
DOS/Windows utilities, and LAN analyzers (i.e.
FTP Software LANWATCH, Novell LAN analyzer) to 
diagnose problems. Some common problems exhibited 
when the Spectrum24 adapter has not been properly
installed include:
•Windows 95 does not recognize the Spectrum24 PC/
ISA card when installed.
– Verify that Windows 95 PCMCIA support
is installed.
– The computer might not have Plug and Play BIOS 
or a Spectrum24 ISA adapter in use. The 
Spectrum24 ISA adapter is not a Plug and
Play device, it requires manual loading of the 
PCMCIA support. Double click on the PC Card 
(PCMCIA) applet in the Control Panel to install 
PCMCIA support.
•The driver fails to load.
– A resource conflict could exists. Use the Device 
Manager to help resolve resource conflicts.
Select the System applet from the Control Panel. 
Select the Device Manager tab.
•The workstation cannot attach to the Spectrum24 
network.
– Verify that the adapter ESS ID or Net ID settings 
match the ESS ID or Net ID of the Access Point. 
Refer to the Configuration section of this 
document for details.

Troubleshooting
H 2 Spectrum24 Wireless LAN Adapter Product Reference Guide
– Verify that the adapter Data Rate is configured 
properly for the AP (refer to the AP Rate Control 
Table in this document).
•A degraded performance from the Spectrum24 card.
– Verify a secure connection to Antenna 1 on the PC 
Card or Primary Antenna on the WPOS adapter.
– Verify two antennas remain attached to the PC or 
ISA adapter if Diversity is selected.
•Network drive mappings disappear when the laptop 
suspends or the adapter is removed then reinserted. 
Windows 95 does not restore Netware network drive 
mappings under these conditions.
– Log out and log in again, or restart the machine 
to restore the connections.
•Non-functioning WPOS/ISA adapter LEDs.
–Verify the Card Type parameter is set to
WPOS/ISA.
– Verify that the adapter ESS ID or Net ID setting 
matches the ESS ID or Net ID of the Access Point.
H.2 Windows NT 4.0/3.51 Troubleshooting
Make use of the tools provided by Windows NT, the 
Spectrum24 DOS/Windows utilities, and LAN analyzers 
(i.e. FTP Software LANWATCH, Novell LAN analyzer) to 
diagnose problems.
•A resource conflict (usually IRQ or I/O base address) 
caused the driver not to load.
–Check SLANT entries in the System Log for hints 
on where to look for the conflicts (Windows
NT 3.51).

Troubleshooting
Spectrum24 Wireless LAN Adapter Product Reference Guide H 3
•Check Service Monitor entries in the System Log
for hints on where to look for the conflicts (Windows 
NT 4.0).
–Use the Windows NT Diagnostics program to 
locate a free resource (Windows NT 4.0). Use the 
Network Control Panel applet Configure option to 
modify the appropriate key value.
Resource conflicts can exist without an entry in the event 
log, when another adapter failed to register its resources.
When no event log entries appear and the Net_ID is
set appropriately, attempt different settings with the
Memory Base Address, Interrupt Number, and IO Port 
Address parameters.
•No resource conflicts were detected, but the system 
will not attach to the network.
– When using the Symbol protocol, verify the  
Net_ID of the Spectrum24 card matches the 
Net_ID of the Access Point. Use the Network 
Control Panel applet Configure option to modify 
the Net_ID setting.
– When using the IEEE 802.11 protocol, verify the 
ESS_ID of the Spectrum24 card matches the 
ESS_ID of the Access Point. Use the Network 
Control Panel applet Configure option to modify 
the ESS_ID setting.
– When using the IEEE 802.11 protocol, verify the 
Mandatory BSS_ID setting of the Spectrum24 card 
is set to 0 or matches the BSS_ID of the Access 
Point. Use the Network Control Panel applet 
Configure option to modify the Mandatory BSS_ID 
setting.

Troubleshooting
H 4 Spectrum24 Wireless LAN Adapter Product Reference Guide
– Verify that the adapter Data Rate is configured 
properly for the AP (refer to the AP Rate Control 
Table in this document).
•A degraded performance from the Spectrum24 card.
– Verify a secure connection to Antenna 1 on
the PC Card or Primary Antenna on the WPOS 
adapter.
– Verify two antennas remain attached to the
PC Card or the ISA adapter when Diversity is 
selected.
•Non-functioning WPOS/ISA adapter LEDs.
– Verify that the WPOS/ISA adapter type is selected 
in the Card Type field.
– Verify that the adapter ESS ID or Net ID setting 
matches the ESS ID or Net ID of the Access Point.
H.2.1 Useful tools
Windows NT Provides other tools for analyzing the network 
installation and performance. These include:
PCMCIA.CPL A Control Panel utility that comes with 
Windows NT 4.0 or the Windows NT 3.51 
Resource Kit. This utility shows information 
about the installed PCMCIA card (or WPOS 
adapter). If the card is installed, but does 
not show in the display it is probably bad.
Performance 
Monitor
A Windows NT 3.51 utility (Administrative 
Tools group). Configure this utility to 
monitor and display protocol activity to/
from the workstation. Various counters 
reflect current activity levels, maintained by 
the driver and protocol stacks. Refer to the 
Windows NT 3.51/4.0 Workstation/Server 
documentation for details.

Troubleshooting
Spectrum24 Wireless LAN Adapter Product Reference Guide H 5
H.3 Windows NT ERRORS
Errors during driver loading appear in the System Log.
Use the Event Viewer program from the Administrative 
Tools group to view the System Log. For Windows NT 3.51, 
find the entries where the Source field indicates the SLANT 
driver. In Windows NT 4.0 find SLANT or Service Monitor 
entries. If the driver fails to load one of the following 
messages will appear in the System Log.
SLANTn is the driver name, where n indicates the nth 
network driver installed.
SLANTn: Could not allocate the resources necessary for operation.
•The driver could not allocate enough memory for
internal data.
SLANTn: Has determined that the adapter is not functioning properly.
•The driver could not initialize the Spectrum24 PC Card 
or ISA adapter. Possible problems include:
– The Spectrum24 PC Card or ISA adapter firmware 
may have been corrupted. Use the DOS-based 
firmware update utilities to re-install the firmware 
(under DOS).
– The Spectrum24 PC Card or ISA adapter might 
have a hardware problem.
– The PCMCIA controller or host bus adapter is 
having a problem. Use an alternate PCMCIA 
socket or ISA bus slot.
– Windows NT 3.51 may not support the PCMCIA 
controller in the machine.
SLANTn: Could not find an adapter.

Troubleshooting
H 6 Spectrum24 Wireless LAN Adapter Product Reference Guide
•The driver could not locate a Spectrum24 PC Card in 
any PCMCIA socket or a Spectrum24 ISA adapter in 
any ISA bus slot. 
– Verify that the Spectrum24 PC Card or ISA
adapter is firmly seated in a PCMCIA socket or 
ISA bus slot.
SLANTn: Could not connect to the interrupt number supplied.
•The driver could not claim the configured interrupt.
– The configured interrupt number could be in
use by another adapter. Choose a different 
interrupt number.
SLANTn: Does not support the configuration supplied.
•An invalid driver configuration parameter was 
specified.
– Use the Configure function of the Network Control 
Panel applet  to view the driver configuration. 
Make sure values appear in each data entry field 
(MicroAP parameters will only appear if the 
MicroAP check box has been selected). If a value 
is missing, key in or use the associated list box to 
select an appropriate value.
SLANTn: A required parameter is missing from the Registry.
•A required configuration parameter was not found in 
the system registry.
– Use the Configure function of the Network Control 
Panel applet to view the driver configuration. 
Make sure values appear in each data entry field 
(MicroAP parameters will only appear if the 
MicroAP check box has been selected). If a value 
is missing, key in or use the associated list box to 
select an appropriate value.

Spectrum24 Wireless LAN Adapter Product Reference Guide Index - 1
Numerics
1 and 2 Mbps
Configuration 6
A
ACL (Access Control List) 5
Antenna
Diversity 39
DOS Configuration 20
End-Cap Installation 16
End-Cap Removal 16
Installation 13
Options 3
Diversity 20
End-Cap 16
External 19
Plane 19
Parameters 20
AP (Access Point) 4
Rate Control 6
Roaming 8
B
BIOS (Basic Input Output System) 3
C
CAM (Continuously Aware Mode)
Power Management 3, 8
CardServices
Enabling 60
Configuration
1 and 2 Mbps 6
Mobile IP 8
Rate Control 6
Roaming 8
CSS (Card and Socket Services)
Plug and Play 3
Wireless LAN 9
Customer Support
Additional Information x
International Contacts ix
North American Contacts ix
D
Data Rates
MicroAP 6
DOS (Disk Operating System)
Conflicts 53
Driver Installation 53
Memory Manager 53
Driver Installation
Introduction 23
Driver Update
Windows NT 3.51 49
Windows NT 4.0 49
Dynamic Rate Control 6
E
ESS_ID (Extended Service Set 
Identification) 5
External Antenna
Installation 19
F
Firmware
ISA 21
PC Card 21
Update 21
Index

Index - 2 Spectrum24 Wireless LAN Adapter Product Reference Guide
Version 21
Frequency-Hopping 1
H
Hardware
Installation 13
I
I/O (Input/Output) 3
Installation
Antenna 13
End-Cap Antenna 16
External Antenna 19
Hardware 13
ISA Adapter 13, 18
PC Card 13
Utilities 13
Windows 95 Driver 23, 26
Windows NT Driver 31
IRQ (Interrupt Request) 3
ISA (Industry Standard Architecture) 
Adapter
Firmware 21
Installation 13, 18
Plug and Play
SLAINIT.EXE 21
Wireless LAN 3, 18
ISA Adapter
Plug and Play 3
M
MAC (Media Access Control)
Address 5
Mbps (Megabits per second) 6
MicroAP
Data Rates 6
ESS_ID 5
Operation 5
Rate Control 6
Rate Control Table 6
Mobile IP (Internet Protocol)
Configuration 8
Roaming 8
Modifying
Config.sys 56
Net.cfg 58
Protocol.ini 57
MU (Mobile Unit)
Operation 4
Rate Control 6
Roaming 8
N
NDIS (Network Driver Interface 
Specification) 3
Automated Installation 54
Keywords 6
Manual Installation 55
Modifying Autoexec. bat 56
Net ID (Net Identification) 28
Network Adapter
Configuration
Windows NT 3.51 49, 50
Windows NT 4.0 49, 50
Network Installation
Windows NT 3.51 43
Windows NT 4.0 43
O
ODI (Open Data-Link Interface) 3
Installation 54
Keywords 6
Manual Installation 57
Modifying Autoexec. bat 58

Spectrum24 Wireless LAN Adapter Product Reference Guide Index - 3
P
PC Card
Alignment 14
Antenna Installation 16
Antenna Removal 16
Firmware 21
Installation 13
Plug and Play 3
Wireless LAN 3
PCMCIA (Personal Computer 
Memory Card International 
Association) 18
Plug and Play 9
BIOS 3
CSS 3
Enabling 59
ISA Adapter 3
PC Card 3
Power Management
CAM 3, 8
PSP 3, 8
Wireless LAN 9
PSP (Power Save Polling)
Power Management 3, 8
R
Rate Control 6
AP 6
Configuration 6
MicroAP 6
MU 6
Roaming
AP 8
Configuration 8
Mobile IP 8
MU 8
S
Spectrum24
802.11 1
Bridging Architecture 1
DOS
Driver Installation 54
Firmware 21
Introduction 1
LED Functions 9
Roaming 1
Switchable Data Rates 1
Spread Spectrum 1
Spring Protocol
Net ID 28
Supported System Software 11
U
Utilities
Installation 13
W
Windows 95
Driver
Configuration 30
Features 24
Installation 23
Setup 29
Transport Updates 24
Uninstall 25
Driver Installation 26
802.11 Protocol 28, 29
OSR2 Version 27
Retail Version 26
Spring Protocol 28, 29
Non-Plug and Play 26
Windows for Workgroups (v3.11)
Driver Installation 62

Index - 4 Spectrum24 Wireless LAN Adapter Product Reference Guide
Windows NT
Driver Features 32
Driver Installation 31
Limitations 33
Windows NT 3.51
Server Installation 36, 40
Workstation Installation 36, 40
Windows NT 4.0
Server Installation 33, 38
Workstation Installation 33, 38
Wireless LAN (Local Area Network)
Adapter 4
CSS 9
ISA Adapter 3, 18
PC Card 3
Power Management 9
Wireless LAN ISA Adapter
Model 3025 9
Wireless LAN PC Card
Model 3020 9
WPOS (Wireless Point of Sale) 28