Intermec JANUS JG2050 Manual de usuario

JANUS®

2.4 GHz Radio Frequency

P/N 064819-001

Quick Reference Guide

IntermecCorporation

6001 36th Avenue West

P.O. Box 4280

Everett, WA 98203-9280

U.S. service and technical support: 1-800-755-5505

U.S. media supplies ordering information: 1-800-227-9947

Canadian service and technical support: 1-800-688-7043

Canadian media supplies ordering information: 1-800-268-6936

Outside U.S. and Canada: Contact your local Intermec service supplier.

The information contained herein is proprietary and is provided solely for the purpose of allowing customers

to operate and/or service Intermec manufactured equipment and is not to be released, reproduced, or used

for any other purpose without written permission of Intermec.

Information and specifications in this manual are subject to change without notice.

1996 by Intermec Corporation

The word Intermec, the Intermec logo, JANUS, IRL, TRAKKER, Antares, Duratherm, Precision

Print, PrintSet, Virtual Wedge, and CrossBar are either trademarks or registered trademarks of

Intermec Corporation.

Throughout this manual, trademarked names may be used. Rather than put a trademark ()

symbol in every occurrence of a trademarked name, we state that we are using the names only in an

editorial fashion, and to the benefit of the trademark owner, with no intention of infringement.

JANUS 2.4 GHz Radio Frequency Quick Reference Guide

iii

Contents

Overview of an Intermec 2.4 GHz RF Network 5

Setting Up the JANUS RF Devices 5

Attaching the Antenna 6

Using the JANUS 2.4 GHz Installation Utility 7

Using the JANUS RF Devices 8

Using the J2020 User’s Manual With Your JR2020G or JG2020 8

Using the J2050 User’s Manual With Your J2050A or JG2050 8

Logging Into or Out Of Novell Software 8

Using the JANUS Programmer’s Software Kit (PSK) 9

Developing Applications 9

About the JANUS Configuration Files 10

Using RF Communications 10

Understanding the RF Status Icons and LEDs 11

Managing Your JR2020G and JG2020 Battery Power 12

Troubleshooting Your JR2020G and JG2020 13

Troubleshooting Your J2050A and JG2050 14

JANUS 2.4 GHz Radio Frequency Quick Reference Guide

The JG2020 and the JG2050 for the 2.4 GHz network is slightly different than the one

described in the standard JANUS 2020 User’s Manual. Even though many of the

features and configuration commands are the same, your device does not support

IRL or PSK Transmit and Receive functions.

Overview of an Intermec 2.4 GHz RF Network

A radio frequency (RF) data collection network establishes a two-way radio

link between a JANUSRF device and a host. The data from the device is sent

in real time through the RF system to an 0100 Access Point and then on to the

host. The RF link is completely transparent to the user. The following

illustration shows one example of an Intermec 2.4 GHz RF data collection

network.

A Typical Intermec 2.4 GHz Network

Ethernet

0100

J2050

JANUSQ.001

Host

JG2020

With your JANUS RF device you can move anywhere within the range of an

access point and transmit data to and from the host.

Setting Up the JANUS RF Devices

The JR2020G and the JG2020 are JANUS 2020 hand-held data collection

computers that operate in Intermec’s 2.4 GHz RF network. The J2050A and the

JG2050 are vehicle-mount computers that also operate in this network.

Before you can operate any JANUS RF device in the 2.4 GHz RF network, you

need to:

•Attach the antenna to the JR2020G, JG2020, J2050A or JG2050.

JANUS 2.4 GHz Radio Frequency Quick Reference Guide

•Use the JANUS 2.4 GHz Installation Utility to install the network software

and set the network and radio parameters on your JANUS device.

Attaching the Antenna

Caution

The antenna must be attached before turning on the JANUS RF

device. The internal radio could be damaged if the antenna is not

attached.

Conseil

Si l’antenna n’est pas attachée avant que l’appareil RF de JANUS

soit mise sous tension, la radio interne peut être endommagée.

Note: Do not interchange antennas between any of the JANUS RF devices. Each

antenna is built specifically for the radio that is installed in the device.

1. Make sure the JANUS RF device is switched off. If the device is on, switch

it off by pressing

2. Screw the antenna into the connector of the device. Refer to the following

illustrations.

3. Switch on the device by pressing

Attaching the J2050A or JG2050 Antenna

2050U.009

JANUS 2.4 GHz Radio Frequency Quick Reference Guide

Attaching the JR2020G or JG2020 Antenna

20X0Q.003

Using the JANUS 2.4 GHz Installation Utility

Before you can use your JANUS RF devices in a 2.4 GHz network, you must

configure the radio parameters and load the network software on them. There

are two different installation utility kits:

•The JANUS 2.4 GHz Installation Utility Kit for 1MB devices

(Intermec P/N 064792)

•The JANUS 2.4 GHz Installation Utility Kit for 4MB devices

(Intermec P/N 064672

You need to provide the network software (LAN WorkPlace for DOS or

NetWare Client for DOS) that you install on your devices. The kit provides the

installation utility that merges your network software with the JANUS

software, software for setting a security ID for your network, Intermec and

Novell terminal emulation software that allow you to install terminal

emulation, and boot utilities companion disks that ensure that you will be

running the latest JANUS firmware.

The installation utility creates new drive images for your devices that allows

them to connect with a Novell network or a TCP/IP-based UNIX network

using RF communications. The installation utility runs on a host PC in the DOS

environment and uses a DOS text-based interface to prompt you for

information about your network.

JANUS 2.4 GHz Radio Frequency Quick Reference Guide

Using the JANUS RF Devices

This section contains information on the JANUS RF devices for the 2.4 GHz

network.

Note: If your device has sent or received TCP/IP packets when it was out of range of an

access point, or if your device was placed in a suspend state, you may notice a delay in

reconnecting to the network. The TCP/IP protocol determines the retransmission

timeout based on the length of time the device is suspended or disconnected from the

network. For example, this delay can be 30 seconds if the device roams out of range for

3 minutes. The maximum timeout can be from 30 seconds to 1 minute.

Using the J2020 User’s Manual With Your JR2020G or

JG2020

Most of the information in the J2020 user’s manual also applies to your

JR2020G and JG2020. However, both of these readers do not have IRL loaded

on them. Ignore the sections in your user’s manual that discuss IRL.

Also, the JR2020G does not have a PC card slot. Ignore sections in your user’s

manual that talk about using PC cards with your reader.

Using the J2050 User’s Manual With Your J2050A or

JG2050

Most of the information in the J2050 user’s manual also applies to your J2050A

and JG2050. However, both of these devices do not have IRL loaded on them.

Ignore the sections in your user’s manual that discuss IRL.

Also, the J2050A for the 2.4 GHz RF network does not have a PC card slot.

Ignore sections in your user’s manual that talk about using PC cards with your

device.

Logging Into or Out Of Novell Software

If you are a NetWare Client user or, if you are a LAN WorkPlace user using

SPX/IPX support, you must use special instructions when logging into a

NetWare server from your JANUS device.

To log into your network

•Type IMLOGIN on your JANUS RF device.

Note: Do not type LOGIN to log into your network.

JANUS 2.4 GHz Radio Frequency Quick Reference Guide

To log out of your network

•Type IMLOGOUT on your JANUS RF device.

Note: You can also type LOGOUT.

When you reboot your device, it automatically runs IMLOGIN. You will

usually type IMLOGIN in these situations:

•You roam out of range of an 0100 Access Point for an extended period of

time and the NetWare server logs out your device. When you return to

within range of an access point, you need to type IMLOGIN to log back

into the 2.4 GHz RF network.

•You do not transmit any packets using your device for an extended period

of time. Your device may be placed in a suspend state and the NetWare

server logs out your device. When you press the

button, you must type

IMLOGIN to log back into the 2.4 GHz RF network.

Using the JANUS Programmer’s Software Kit (PSK)

The JANUS RF devices for the 2.4 GHz network cannot run Transmit or

Receive functions provided by the JANUS PSK. TCP/IP and SPX/IPX protocol

handlers have not yet been developed. If you need these functions, use

Novell’s off-the-shelf application programming interfaces (APIs) instead of the

JANUS PSK.

Developing Applications

Intermec recommends the following software if you need to develop

applications that run on your JANUS RF devices in the 2.4 GHz network:

•LAN Workshop

This program is a high-level API for TLI development. You can develop

applications for both TCP/IP and SPX/IPX.

•NetWare Client SDK

This program allows you to develop applications for SPX/IPX.

•Off-the-shelf APIs by Novell.

Note: If you notice that your device is overheating or if it seems to be working better in

a cold environment than a warm environment, your application may be sending too

many packets to the host. Reduce the number of packets sent to two or three packets

per second.

JANUS 2.4 GHz Radio Frequency Quick Reference Guide

About the JANUS Configuration Files

When the JANUS RF device performs a cold boot, it looks for a configuration

file *.INI, whose path is specified in the AUTOEXEC.BAT file. The *.INI file

that you use depends on which software you install on your JANUS device.

J24TE.INI If you install Intermec TNVTxxx, 3270, or 5250 terminal emulation

software, this configuration file is automatically loaded in the DRIVEC

subdirectory.

JANUS.INI If you install Novell TVNTxxx or NetWare Client, you need to

create this configuration file. Use IC.EXE to create the JANUS.INI file and then

you save it to drive E. If you do not want to lose the configuration file when

you cold boot the device, you can put the JANUS.INI file in the DRIVEC

subdirectory.

Remember to update your AUTOEXEC.BAT file with the correct path name of

the new JANUS.INI file.

To load the JANUS.INI file

1. Create a configuration file that you want to load whenever the reader

performs a cold boot.

2. Save this configuration file as JANUS.INI.

3. Copy the JANUS.INI to drive E on the device.

Note: Since drive E is initialized on a cold boot, you will lose JANUS.INI if you

perform a cold boot on the device. If you want to put the JANUS.INI file on drive

C, use Auto-Loader or MkImage/PutImage to update drive C. Refer to your

JANUS user’s manual for more information.

4. At the DOS prompt on the device, load the configuration file by typing:

IC /L E:\JANUS.INI

Using RF Communications

Once your RF system is configured for RF communications, you can begin

collecting and transmitting data using your JANUS RF device. When you

transmit data using the JANUS RF device, the information is first sent to its

radio buffer. The data is then sent on to the access point and then to the host.

If the RF network goes down, you can continue to collect data until the radio

buffer is full. When the buffer is full, the application returns a communication

timeout status. The actual status response depends on what language you used

to develop the application.

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