JANUS
®
900 MHz
Radio Frequency
P/N 060207-002
Quick Reference Guide
Intermec Corporation
6001 36th Avenue West
P.O. Box 4280
Everett, WA 98203-9280
U.S. technical and service support: 1-800-755-5505
U.S. media supplies ordering information: 1-800-227-9947
Canadian technical and service 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
All Rights Reserved
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 ( or ®)
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.
Manual Change Record
This page records the changes to this manual. The manual was originally released at -001.
Version Date Description of Change
002 7/95 JANUS 2050 information added.
Contents
Contents
Overview of an RF System 7
Setting Up RF Communications 8
Attaching the Antenna 8
Configuring the RF Parameters 10
Unloading and Loading the RF Protocol Handler 12
Using RF Communications 13
Understanding the RF Status Icons and LEDs 13
Managing Your J2010 and JR2020 Battery Power 14
Troubleshooting Your J2010 and Your JR2020 15
Troubleshooting Your J2050 16
Configuring Your JANUS RF Device 17
Using RF Communications 17
Using the Interactive Configuration Application 18
Scanning Bar Code Labels 19
RF Configuration Parameters 19
Acknowledgment Delay 19
Broadcast Receipt 20
Channel Allow 21
Channel Select 22
Device Address 23
Duty Cycle Percent 26
Duty Cycle Period 27
Loopback 29
Network ID 29
Repeat Count 31
Retry Limit 32
RF Protocol 33
RFNC Address 34
v
JANUS 900 MHz Radio Frquency Quick Reference Guide
This guide describes how to use radio frequency communications on the JANUS RF
devices (J2010 with an RF back and JR2020 handheld data collection computers and
J2050 vehicle-mount computer). It also tells you how to attach the antenna and
configure the JANUS RF devices. For more help about any other features, refer to your
JANUS user’s manual.
Overview of an RF System
A radio frequency (RF) data collection system establishes a two-way radio link
between a JANUS RF device and a central network controller. The data from
the JANUS RF device is sent in real time through the RF system to the network
controller and then on to the host computer. The RF link is completely
transparent to the user. The following illustration shows one example of an RF
data collection system.
Nuggetfont
9183
Repeater
J2010 with
an RF Back
9181 Base
Radio Unit
9180
Network
Controller
Host Computer
JR2020 (RF)
20X0Q.004
With your JANUS RF device you can move anywhere within range of a base
radio unit (BRU) or a radio repeater and transmit data to and from a network
controller that is connected to a host computer. If your controller has a 900
MHz RF ISA card installed, you can transmit directly to it. For help in learning
about RF systems, refer to your controller user’s manual.
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JANUS 900 MHz Radio Frequency Quick Reference Guide
Setting Up RF Communications
Before you can use RF communications on the JANUS RF device, you need to
do the following:
• Attach the antenna to the J2010 with an RF back, JR2020, or J2050.
• Configure the RF parameters.
• Make sure that the RF protocol handler is loaded.
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.
Nuggetfont
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 JANUS RF device is
on, switch it off by pressing L.
2. Screw the antenna into the connector of the JANUS RF device. Refer to the
following illustrations.
3. Switch on the JANUS RF device by pressing L.
8
Attaching the J2010 Antenna
Attaching the J2050 Antenna
JANUS 900 MHz Radio Frquency Quick Reference Guide
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20X0Q.002
2050U.009
9
JANUS 900 MHz Radio Frequency Quick Reference Guide
Attaching the JR2020 Antenna
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20X0Q.003
Configuring the RF Parameters
The RF configuration parameters define radio communications between the
JANUS RF device and the Intermec RF data collection system.
Note: The software version of your 9180 network controller can affect which RF
configuration parameters you set. Refer to the next section, “About Your Controller
Software Version.”
RF Configuration
Parameter Default Setting
Acknowledgment Delay 100 milliseconds
Broadcast Receipt Enabled
Channel Allow All channels are excluded from the search pattern
Channel Select 924 MHz
Device Address 0 (turned off)
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JANUS 900 MHz Radio Frquency Quick Reference Guide
RF Configuration
Parameter Default Setting
Nuggetfont
Duty Cycle Percent (reader)
Duty Cycle Percent (J2050)
Duty Cycle Period 1 second
Loopback Disabled
Network ID Channel search disabled
Repeat Count 0 repeaters
Retry Limit 0 (optimized setting)
RF Protocol Enabled
RFNC Address RFNC 0
30%
100%
To configure the JANUS RF device, follow the instructions in “Configuring a
JANUS RF Device” later in this guide.
About Your Controller Software Version
The software version that is running on your 9180 Network Controller
determines the RF configuration parameters you need to set on your JANUS RF
devices. If you have a 9180 controller running software version 1.3 or earlier,
you do not have some features that the 9180 controller with software version
2.0 and the 9185 Network Controller have. These enhanced features include
time broadcast, channel search capabilities, network management, and support
for multiple BRUs.
If the 9180 controller is running software version 1.3 or earlier
Parameter on
JANUS RF device Must match
Device Address The address used by the network controller to identify each
Channel Select The channel set for the BRU.
Network ID 0
RFNC Address A value that is twice the setting on the network controller.
Repeat Count The setting on the network controller.
JANUS RF device.
For example, if the network controller address is 2, you would
set the RFNC address on the JANUS RF device to 4.
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JANUS 900 MHz Radio Frequency Quick Reference Guide
Nuggetfont
If the 9180 controller is running software version 2.0 or you have a 9185 controller
Parameter on
JANUS RF device Must match
Device Address The address used by the network controller to identify each
JANUS RF device.
Channel Select The channel set for the BRU that is most frequently used by the
JANUS RF device.
Network ID The value entered for the network ID on the network controller.
Note: The Channel Allow parameter must be set if you are going to be communicating
on more than one frequency by using the channel search feature.
For help in learning about the network controller, base radio unit, and radio
repeater, refer to your user’s manual.
Unloading and Loading the RF Protocol Handler
The protocol handler for RF communications automatically loads when you
boot a JANUS RF device.
If you do not need the RF protocol handler, you can unload it. For help in
learning about protocol handlers, refer to your JANUS user’s manual.
To unload the RF protocol handler
•
From the JANUS RF device DOS prompt, type:
unload rfph 4
Note: The “4” in the command line indicates you are unloading the protocol
handler for COM port 4 (RF interface).
If you have unloaded the RF protocol handler, and want to use RF
communications without rebooting your JANUS RF device, you can load it
again.
To load the protocol handler
•
From the JANUS RF device DOS prompt, type:
rfph 4
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JANUS 900 MHz Radio Frquency Quick Reference Guide
Using RF Communications
For RF communications, use the Communications Manager, IRL Desktop, or an
application created using the software libraries provided in the Programmer’s
Software Kit Language Libraries. For help in learning about the language
libraries, refer to your JANUS PSK reference manual.
Note: The Interlnk/Intersvr utilities do not work with RF communications.
When you use a communications program, the RF communications port is
designated as COM4. Since COM4 is not a standard PC communications port,
you cannot access it with commercial communications packages.
You can switch between RF communications and serial communications
(by designating whether you are talking to COM1 or COM4. If you are
switching between COM1 and COM4, you need to have protocol handlers
loaded for both ports.
Once your RF system is configured for RF communications, you can begin
collecting and transmitting data using your JANUS RF device to and from a
network controller. 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
network controller. Even 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. When your RF network
comes back up, the data in the radio buffer is transmitted to the network
controller and you can once again transmit data.
Nuggetfont
Caution
Do not operate two RF devices within 2 feet (0.6 meters) of each other when
using RF communications. Doing so may damage the radio receivers.
Conseil
Assurez-vous de ne pas utiliser deux devices RF de carte à moins de 2 pieds
(0,6 mètres) l’un de l’autre lorsque vous effectuez des communications en
radiofréquence. Sinon, les récepteurs radio pourront être endommagés.
Understanding the RF Status Icons and LEDs
RF status icons on the reader display correspond to LEDs on the J2050 case.
These RF icons and LEDs are used to manage RF communications:
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JANUS 900 MHz Radio Frequency Quick Reference Guide
.
Connected This icon contains an asterisk. The icon or LED flashes when the RF
*
interface is either actively channel searching or trying to reestablish
communications with the network controller. When this icon or LED is solid,
the RF interface is connected to a network controller. The RF interface in the
JANUS RF device handles RF communications.
If this icon or LED is off, RF communications are not possible. The JANUS RF
device may not be set up correctly for RF communications or there may be
another problem such as the battery being low. If RF communications appear
to be locked up, see one of the troubleshooting sections later in this guide for
more help.
Data This icon contains a square. The icon or LED turns on when data is
buffered in the RF interface. The data is either being transmitted to the network
controller or received data has not been accepted by the JANUS RF device
application. Up to five messages can be buffered in the RF interface.
If there are messages in the RF interface when RF communications are turned
off, the data icon or LED remains on.
Note: Do not turn off the JANUS RF device when the data icon or LED is lit. If you
turn off the JANUS RF device, the RF interface saves the data and attempts to transmit
the data again when the JANUS RF device is powered on. This could cause problems if
the JANUS RF device is not powered back on for some time. The data could then be
meaningless and/or disrupt the host application.
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Battery (JANUS 2010 and 2020 readers only.) This icon turns on and stays on
when the NiCad battery pack has approximately 15 to 45 minutes of power left.
Immediately replace or recharge the battery pack because you will soon lose RF
communications. For help, see your JANUS RF documentation.
If you continue to operate the reader without replacing or recharging the
battery pack, the battery pack charge becomes very low. The Battery icon stays
on, the reader chirps every 5 seconds, and then turns off after 1 minute. The
laser scanner and RF communications are turned off 15 seconds after the first
low battery chirp.
You cannot turn the reader back on until you replace the battery pack. The
Battery icon disappears when you replace or recharge the NiCad battery pack.
Managing Your J2010 and JR2020 Battery Power
The JANUS reader’s RF interface has built-in power management to maximize
the life of the battery. The RF interface is the hardware and software built into
the reader to handle RF communications. For more ideas on how to conserve
battery life, see your JANUS user’s manual.
To conserve battery life, the RF interface turns off. No RF communications are
possible in these situations:
• Reader is off.
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JANUS 900 MHz Radio Frquency Quick Reference Guide
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• RF protocol is disabled.
• RF protocol handler is not loaded.
• NiCad battery pack charge is very low.
To avoid losing RF communications, when the battery icon on the reader
display turns on and off, you need to replace or recharge the NiCad battery
pack immediately. Approximately 15 minutes later, when the reader beeps,
RF communications are turned off.
When you remove the battery pack, replace it immediately with a spare
charged battery pack. If you leave the reader without a charged battery pack,
even for a short time, you will prematurely discharge the lithium backup
battery.
You can extend the life of the battery pack by setting the Duty Cycle Percent
and Duty Cycle Period parameters on the reader. Duty cycle causes the RF
interface to alternate between receiving and standby. When the RF interface is
in standby, it uses less battery power, but does not receive messages from the
controller. The RF interface comes out of standby at the end of the duty cycle
period, or when the reader sends a message through COM4.
Note: If the reader is not going to be used for 1 week or longer, it is important that you
put the reader in Storage mode and remove the NiCad battery pack. If you do not
remove the NiCad battery pack, the reader will slowly drain the battery pack. For help,
see your JANUS user’s manual.
Troubleshooting Your J2010 and Your JR2020
If you are having problems with RF communications, review the following list
of problems and their possible solutions.
Note: The readers and the J2050 have slightly different procedures. If you have a J2050,
refer to the next section, “Troubleshooting the J2050.”
You can also use network management commands ($+NM..) to troubleshoot
the RF interface. For help on using network management commands for
troubleshooting, refer to your controller user’s manual.
Problem Solution
The RF option is not listed in the Com
menu of IC.EXE.
You load the RF protocol handler a nd do
not receive the message
Protocol Handler
Intermec RF
.
The reader is not recognizing the RF interface. Contact your
Intermec service representative.
The RF interface is not responding. Contact your Intermec
service representative.
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JANUS 900 MHz Radio Frequency Quick Reference Guide
Troubleshooting Your J2010 and Your JR2020 (continued)
Problem Solution
Nuggetfont
The Battery icon at the top of the reader
turns on.
RF communications appear to be locked
up and the Connect icon turns off.
Troubleshooting Your J2050
If you are having problems with RF communications, review the following list
of problems and their possible solutions.
Replace or recharge the NiCad battery pack immediately
because you are about to lose RF communications.
If the Battery icon turns on and the reader beeps, RF
communications are turned off. You can continue to collect data
with the reader, but the data is not being transmitted to the RF
network.
There are three possible solutions:
1. Check the NiCad battery pack. If the battery pack charge is
low, replace or recharge the battery pack immediately.
2. Make sure you are within range of a radio repeater or base
radio unit.
L
3. Press the
Perform a warm boot on the JANUS RF device (press the
< A
service representative. When you warm boot the JANUS RF
device, you will lose any data stored in the RF interface.
button twice to partially reset the RF interface.
>
keys in sequence) and contact your Intermec
You can also use network management commands ($+NM..) to troubleshoot
the RF interface. For help on using network management commands for
troubleshooting, refer to your controller user’s manual.
Problem Solution
The RF option is not listed in the Com
menu of IC.EXE.
You load the RF protocol handler a nd do
not receive the message Intermec RF
Protocol Handler.
The J2050 is not recognizing the RF interface. Contact your
Intermec service representative.
The RF interface is not responding. Contact your Intermec
service representative.
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JANUS 900 MHz Radio Frquency Quick Reference Guide
Troubleshooting Your J2050 (continued)
Problem Solution
Nuggetfont
RF communications appear to be locked
up and the Connect LED turns off.
There are three possible solutions:
1. Make sure you are within range of a radio repeater or base
radio unit.
2. Press the
that does not work, perform a warm boot on the J2050 (press
the
> < A
Intermec service representative. When you warm boot the
J2050, you will lose any data stored in the RF interface.
3. Press the
Press the
Loader menu, select Storage mode. With the J2050 in storage
mode, wait 60 seconds and then press
sequence will cold start the radio, reboot the JANUS RF
device, and restart the application.
button twice to partially reset the RF interface. If
L
L
button. Press
L
button to turn the J2050 back on. At the Boot
Configuring Your JANUS RF Device
There are three ways you can configure the RF configuration parameters on
your JANUS RF device:
keys in sequence) and contact your
I
- -
B
and then press .
L
again. This
•
Use RF communications to change a few parameters.
•
Use the Interactive Configuration application (IC.EXE).
•
Scan bar code labels.
Each one of these methods is described in this section.
Using RF Communications
Once you have initially configured the JANUS RF device for your system, you
can change the JANUS RF device’s configuration by transmitting configuration
command strings over the RF link to the IRL Desktop or any application that
specifically uses Reader Services’ input manager. Your JANUS PSK reference
manual describes how to use Reader Services.
The following configuration parameters can be changed by transmitting
commands to the JANUS RF device over the RF link:
•
Acknowledgment Delay
•
Duty Cycle Percent
•
Duty Cycle Period
17
JANUS 900 MHz Radio Frequency Quick Reference Guide
• Repeat Count
• Retry Limit
The commands must include the prefix ..$+.
For example, to set the Duty Cycle Percent parameter to 50%, you would send
the command string:
..$+RY5
Using the Interactive Configuration Application
1. On the JANUS RF device, type ic and press @.
Configuration
File Sym Com Op
Com1
RF
The main menu appears.
2. From the main menu bar, select Com.
3. From the Com dropdown menu, select RF.
Nuggetfont
Select this RF
menu option
Configuration
File Sym Com Op
Activate...
Primary Cfg...
Network Mgmt...
Secondary Cfg...
Country Info...
20X0Q.007
To configure this RF
configuration parameter Notes
4. Select one of the RF menu options to configure.
Activate RF Protocol Set RF Protocol to enable or disable.
Primary Cfg Device Address
Channel Select
Network ID
If Network ID=0, choose Next to set RFNC Address and
Repeat Count.
If Network ID=1, choose Next to set Channe l Allow.
Network Mgmt Loopback
Broadcast Receipt
Secondary Cfg Acknowledgment Delay Choose Next to set Retry Limit, Duty Cycle Perc ent, and
Duty Cycle Period.
Country Info None This option provides a list of the countries that the
JANUS RF device is configured for and the frequencies
available.
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JANUS 900 MHz Radio Frquency Quick Reference Guide
Scanning Bar Code Labels
You can scan bar code labels to configure each RF configuration parameter. The
next section, “RF Configuration Parameters,” lists all the parameters and
includes the procedure you use to configure your JANUS RF device.
Parameters can be enabled or disabled, or you can enable the parameter by
setting a specific value. Always scan the bar code labels to enable/disable the
parameter and set a value (if necessary).
Note: You cannot use the JANUS RF device’s keypad to enter a value.
For help on how to change the JANUS RF device’s configuration, refer to your
JANUS user’s manual.
RF Configuration Parameters
This section lists in alphabetical order the configuration parameters that you
use to configure the JANUS RF device for RF communications. For help, see
“Scanning Bar Code Labels” earlier in this guide.
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Note: If you have a 9185 controller, follow the instructions for the 9180 controller with
version 2.0 software.
Acknowledgment Delay
Purpose: Determines the length of time the JANUS RF device should wait for a response
from the network controller after it has sent a message. If a response is not
received within the specified time, the JANUS RF device attempts to transmit
the message again.
Default: 100 ms
Syntax: RMdata
Acceptable values for data are 0, and 20 through 100 (100 ms through 500 ms).
Note: If you are using IC.EXE, simply enter the number of milliseconds you want for
the acknowledgment delay.
To calculate the correct value for data, divide the number of milliseconds you
want for the acknowledgment delay by 5. For example, to have a duty cycle of
200 ms, scan 40.
If you scan zero, the acknowledgment delay has a default delay of 100 ms.
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JANUS 900 MHz Radio Frequency Quick Reference Guide
Scan: 1. Scan this bar code:
Enter Accumulate Mode / ACK Delay
*+/$+RM*
*+/$+RM*
Nuggetfont
2. Scan a numeric value for
data
from these bar codes:
*0* *5*
*0* *5*
*1* *6*
*1* *6*
*2* *7*
*2* *7*
*3* *8*
*3* *8*
*4* *9*
*4* *9*
3. Scan this bar code:
Exit Accumulate Mode
*-/*
*-/*
Broadcast Receipt
Purpose:
Default:
Syntax:
20
Enables the JANUS RF device to receive the time broadcast from the network
controller.
Enabled
NM03
Acceptable values for
0 Disable
1Enable
data
data
are 0 and 1, corresponding to:
JANUS 900 MHz Radio Frquency Quick Reference Guide
Nuggetfont
Scan: One of these labels:
Time Broadcast Receipt Disable
*$+NM030*
*$+NM030*
Time Broadcast Receipt Enable
*$+NM031*
*$+NM031*
Channel Allow
Note: You can set this parameter in IC.EXE by choosing Network ID, setting Network
ID=1, and choosing Next.
Purpose: Specifies which frequencies the JANUS RF device can search when it is channel
searching. The frequencies selected for Channel Allow must match the
frequencies used by the network controller. However, selecting more
frequencies than necessary will slow down the JANUS RF device.
The frequency you set for the Channel Select parameter is automatically
included in a channel search and does not need to be set for Channel Allow.
Note: If your 9180 Network Controller has version 1.3 or earlier software, you do not
need to set this parameter.
For help on channel searching, see the Network ID parameter.
Default: All channels are excluded from the search pattern.
Syntax: R{channel}{data}
Acceptable values for channel are:
0 924 MHz
1 921 MHz
2 918 MHz
3 915 MHz
4 912 MHz
5 909 MHz
6 906 MHz
Acceptable values for data are:
0 The channel is excluded from any search pattern.
1 The channel is searched.
21
JANUS 900 MHz Radio Frequency Quick Reference Guide
Scan: 1. Scan this bar code:
Enter Accumulate Mode / Channel Allow
*+/$+R*
*+/$+R*
2. Scan a numeric value (0 to 6) for channel from these bar codes:
*0* *4*
*0* *4*
*1* *5*
*1* *5*
*2* *6*
*2* *6*
Nuggetfont
*3*
*3*
3. Scan a 0 or 1 for data from these bar codes:
*0* *1*
*0* *1*
4. Repeat Steps 2 and 3 to enable all channels you are using.
5. Scan this bar code:
Exit Accumulate Mode
*-/*
*-/*
Channel Select
Purpose: Determines the base frequency over which the JANUS RF device communicates
with the network controller. The frequency selected must match the frequency
used by the network controller.
Note: If your 9180 controller has version 2.0 software, set Channel Select to the initial
frequency the JANUS RF device should use whenever the system is reset. This
frequency is automatically included in a channel search and does not need to be set in
the Channel Allow parameter.
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JANUS 900 MHz Radio Frquency Quick Reference Guide
Note: If your 9180 controller has version 1.3 or earlier software, set Channel Select to
the frequency the JANUS RF device uses for communications.
Default: 924 MHz
Syntax: RVdata
Acceptable values for data are 0 through 6, which correspond to these
frequencies:
0 924 MHz 4 912 MHz
1 921 MHz 5 909 MHz
2 918 MHz 6 906 MHz
3 915 MHz
Scan: One of these labels:
924 MHz 912 MHz
*$+RV0* *$+RV4*
*$+RV0* *$+RV4*
Nuggetfont
921 MHz 909MHz
*$+RV1* *$+RV5*
*$+RV1* *$+RV5*
918 MHz 906 MHz
*$+RV2* *$+RV6*
*$+RV2* *$+RV6*
915 MHz
*$+RV3*
*$+RV3*
Device Address
Purpose: Assigns the JANUS RF device an address. This address is used by the host
computer to identify a JANUS RF device. The table on the following page lists
all possible addresses and their corresponding addresses that are used by the
controller (host address). Each local device such as the JANUS RF device must
have a unique address.
Note: If a JANUS RF device is going to communicate with more than one network
controller, it must be assigned the same Device Address on each network controller.
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JANUS 900 MHz Radio Frequency Quick Reference Guide
Default: 0 (turned off)
Note: Once the Device Address parameter is set, you can only set the address to the
default value (0) by loading the default configuration in IC.EXE. For help setting the
JANUS RF device to the default configuration, see your JANUS user’s manual.
Syntax: RHdata
Acceptable values for data are 1 through 128. The value for data must
correspond to the host address as shown in the table on the following page.
Scan: 1. Scan this bar code:
Enter Accumulate Mode / RF Device Address
*+/$+RH*
*+/$+RH*
2. Scan a numeric value for data from these codes:
Nuggetfont
*0* *5*
*0* *5*
*1* *6*
*1* *6*
*2* *7*
*2* *7*
*3* *8*
*3* *8*
*4* *9*
*4* *9*
3. Scan this bar code:
Exit Accumulate Mode
*-/*
*-/*
A message from the host computer must include the host address as the first
two characters of the message. These two characters indicate the JANUS RF
device that should receive the message. The value for data should correspond to
the host address used by the network controller for that JANUS RF device.
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JANUS 900 MHz Radio Frquency Quick Reference Guide
Host Address/Device Address Correspondence
Nuggetfont
Device
Host
Addres
s
mA1 nA33oA65pA97
mB2 nB34oB66pB98
mC3 nC35oC67pC99
mD4 nD36oD68pD100
mE5 nE37oE69pE101
mF6 nF38oF70pF102
mG7 nG39oG71pG103
mH8 nH40oH72pH104
mI9 nI41oI73pI105
mJ 10 nJ 42 oJ 74 pJ 106
mK 11 nK 43 oK 75 pK 107
mL 12 nL 44 oL 76 pL 108
mM 13 nM 45 oM 77 pM 109
mN 14 nN 46 oN 78 pN 110
mO 15 nO 47 oO 79 pO 111
mP 16 nP 48 oP 80 pP 112
mQ 17 nQ 49 oQ 81 pQ 113
mR 18 nR 50 oR 82 pR 114
mS 19 nS 51 oS 83 pS 115
mT 20 nT 52 oT 84 pT 116
mU 21 nU 53 oU 85 pU 117
mV 22 nV 54 oV 86 pV 118
mW 23 nW 55 oW 87 pW 119
mX 24 nX 56 oX 88 pX 120
mY 25 nY 57 oY 89 pY 121
mZ 26 nZ 58 oZ 90 pZ 122
m0 27 n0 59 o0 91 p0 123
m1 28 n1 60 o1 92 p1 124
m2 29 n2 61 o2 93 p2 125
m3 30 n3 62 o3 94 p3 126
m4 31 n4 63 o4 95 p4 127
m5 32 n5 64 o5 96 p5 128
Address
<data>
Host
Addres
s
Device
Address
<data>
Host
Addres
s
Device
Address
<data>
Host
Addres
s
Device
Address
<data>
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JANUS 900 MHz Radio Frequency Quick Reference Guide
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Duty Cycle Percent
Note: You can set this parameter in IC.EXE by choosing Acknowledgment Delay and
then choosing Next.
Purpose: Defines how long the RF interface is powered on compared to how long it is in
standby. Standby uses less power, which allows the reader to conserve battery
power, but the RF interface does not receive messages from the network
controller. The total amount of time the RF interface is powered on plus the
amount of time it is in standby is set by the duty cycle period.
For example, if Duty Cycle Period is set to 1 second, a 30% duty cycle means the
RF interface is powered on for 300 ms and then is in standby for 700 ms.
A 100% duty cycle means the RF interface is always on.
Note: The Duty Cycle Percent parameter significantly affects the reader’s battery life.
Longer duty-cycle-on periods result in a shorter battery life but higher system
throughput. If you have a 9180 controller with version 2.0 software, you have a greater
chance of missing broadcast messages when the duty cycle is set to a lower value.
Default (readers): 30% duty cycle on
Default (J2050): 100% duty cycle on
Syntax: RYdata
Acceptable values for data are 0 through 9, corresponding to:
0 100% duty cycle on 5 50% duty cycle on
1 90% duty cycle on 6 40% duty cycle on
2 80% duty cycle on 7 30% duty cycle on
3 70% duty cycle on 8 20% duty cycle on
4 60% duty cycle on 9 10% duty cycle on
Scan: 1. Scan this bar code:
Enter Accumulate Mode / Duty Cycle
*+/$+RY*
*+/$+RY*
2. Scan a numeric value for data from these bar codes:
*0* *5*
*0* *5*
26
JANUS 900 MHz Radio Frquency Quick Reference Guide
*1* *6*
*1* *6*
*2* *7*
*2* *7*
*3* *8*
*3* *8*
*4* *9*
*4* *9*
3. Scan this bar code:
Exit Accumulate Mode
*-/*
*-/*
Nuggetfont
Duty Cycle Period
Note: You can set this parameter in IC.EXE by choosing Acknowledgment Delay and
then choosing Next.
Purpose:
Default:
Syntax:
Defines the length of time the RF interface is powered on plus the amount of
time it is in standby. The percent of time the RF interface is powered on in this
time period is determined by the duty cycle percent. The duty cycle settings are
used to conserve battery power. In standby, the RF interface does not receive
messages from the network controller.
For example, if Duty Cycle Period is set to 1 second, a 30% duty cycle means the
RF interface is powered on for 300 ms and then is in standby for 700 ms.
A 100% duty cycle means the RF interface is always on.
1 second
RX
Acceptable values for
Note: If you are using IC.EXE, simply enter the number of milliseconds you want for
the duty cycle period.
data
data
are 0 through 100 (100 ms to 10 seconds).
27
JANUS 900 MHz Radio Frequency Quick Reference Guide
To calculate the correct value for data, divide the number of milliseconds you
want for the duty cycle period by 100. For example, to have a duty cycle of
200 ms, scan 2.
If you scan zero, the duty cycle period has a default delay of 1 second.
Scan: 1. Scan this bar code:
Enter Accumulate Mode / Duty Cycle Period
*+/$+RX*
*+/$+RX*
2. Scan a numeric value for data from these bar codes:
*0* *5*
*0* *5*
*1* *6*
*1* *6*
Nuggetfont
*2* *7*
*2* *7*
*3* *8*
*3* *8*
*4* *9*
*4* *9*
3. Scan this bar code:
Exit Accumulate Mode
*-/*
*-/*
28
JANUS 900 MHz Radio Frquency Quick Reference Guide
Nuggetfont
Loopback
Purpose: Transmits all messages received from the network controller back to the
controller. Messages received by the RF interface are not passed on to the
JANUS RF device unless they are configuration commands (..$+NM,
..$+RX, etc.). Messages continue to be looped back to the controller as long
as this feature is enabled. Messages originating from the JANUS RF device
are still transmitted to the controller.
Use the Loopback parameter to troubleshoot RF communications problems.
Default: Disabled
Syntax: NM02data
Acceptable values for data are 0 and 1, corresponding to:
0 Disable
1Enable
Scan: One of these labels:
Loopback Disable
*$+NM020*
*$+NM020*
Loopback Enable
*$+NM021*
*$+NM021*
Network ID
Purpose: Enables the channel search feature on the JANUS RF device. This feature lets
the JANUS RF device search for an open frequency to transmit data if it cannot
establish communications over its current frequency.
Note: If your 9180 controller has version 2.0 software, you must set the network ID on
the JANUS RF device. The device’s network ID must match the network ID on the
network controller. You must also set the Channel Allow parameter to identify the
additional channels that can be used in channel search.
Note: If your 9180 controller has version 1.3 or earlier software, set the network ID to
0 and set the RFNC Address and Repeat Count parameters.
29
JANUS 900 MHz Radio Frequency Quick Reference Guide
For help on selecting the frequencies the JANUS RF device can search for, see
the Channel Allow parameter.
Default: Channel search disabled
Syntax: RWdata
Acceptable values for data are:
0 Disable
1 to 254 Used by the JANUS RF device during a
channel search to locate the BRUs
connected to its network controller
Scan: 1. Scan this bar code:
Enter Accumulate Mode / Network ID
*+/$+RW*
*+/$+RW*
Nuggetfont
2. Scan a numeric value for data from these bar codes:
*0* *5*
*0* *5*
*1* *6*
*1* *6*
*2* *7*
*2* *7*
*3* *8*
*3* *8*
*4* *9*
*4* *9*
3. Scan this bar code:
Exit Accumulate Mode
*-/*
*-/*
30
JANUS 900 MHz Radio Frquency Quick Reference Guide
Nuggetfont
Repeat Count
Note: You can set this parameter in IC.EXE by choosing Network ID, setting Network
ID=0, and choosing Next.
Purpose: Defines the number of times the message is sent from the radio repeaters. The
JANUS RF device attaches this information to every message it sends. When a
repeater receives a message, it checks the repeat count field. If the field is not
zero, it decrements the repeat count and transmits the message. When the field
is zero, this indicates the message has reached the BRU.
Note: If your 9180 controller has version 2.0 software, you do not need to set this
parameter.
Note: If your 9180 controller has version 1.3 or earlier, you need to set this parameter.
Default: No repeaters (0)
Syntax: RUdata
Acceptable values for data are 0 through 7, representing the maximum number
of repeaters a message would ever have to go through to get to the network
controller.
Scan: One of these labels:
Repeat Count 0
*$+RU0*
*$+RU0*
Repeat Count 1
*$+RU1*
*$+RU1*
Repeat Count 2
*$+RU2*
*$+RU2*
Repeat Count 3
*$+RU3*
*$+RU3*
31
JANUS 900 MHz Radio Frequency Quick Reference Guide
Repeat Count 4
*$+RU4*
*$+RU4*
Repeat Count 5
*$+RU5*
*$+RU5*
Repeat Count 6
*$+RU6*
*$+RU6*
Repeat Count 7
*$+RU7*
*$+RU7*
Nuggetfont
Retry Limit
Purpose:
Default:
Syntax:
Note: You can set this parameter in IC.EXE by choosing Acknowledgment Delay and
then choosing Next.
Defines the number of times a message that requires a response should be
transmitted when no response is received within the acknowledgment delay
time setting. If a response is not received, the retry count is incremented and
the message is transmitted again.
Note: If your 9180 controller has version 2.0 software, the JANUS RF device searches
for another frequency when the retry count equals the retry limit.
Note: If your 9180 controller has version 1.3 or earlier software, the JANUS RF device
continues trying to transmit the message, but at a slower rate when the retry count
equals the retry limit.
0 (optimized setting)
data
RL
Acceptable values for
data
are 0 through 15.
32
JANUS 900 MHz Radio Frquency Quick Reference Guide
Scan: 1. Scan this bar code:
Enter Accumulate Mode / Retry Limit
*+/$+RL*
*+/$+RL*
2. Scan a numeric value for data from these bar codes:
*0* *5*
*0* *5*
*1* *6*
*1* *6*
*2* *7*
*2* *7*
Nuggetfont
*3* *8*
*3* *8*
*4* *9*
*4* *9*
3. Scan this bar code:
Exit Accumulate Mode
*-/*
*-/*
RF Protocol
Purpose: Enables RF communications between the JANUS RF device and the controller.
Default: Enabled
Syntax: RFdata
Acceptable values for data are 0 and 1, corresponding to:
0 Disable
1Enable
33
JANUS 900 MHz Radio Frequency Quick Reference Guide
Nuggetfont
Scan: One of these labels:
RF Protocol Disable
*$+RF0*
*$+RF0*
RF Protocol Enable
*$+RF1*
*$+RF1*
RFNC Address
Note: You can set this parameter in IC.EXE by choosing Network ID, setting Network
ID=0, and choosing Next.
Purpose: Identifies the network controller with which the JANUS RF device is trying to
communicate. The value set on the network controller determines the device’s
setting. The table on the following page lists the network controller address and
the corresponding setting for the JANUS RF device.
Note: If your 9180 controller has version 2.0 software, you do not need to set this
parameter.
Note: If your 9180 controller has version 1.3 or earlier, you need to set this parameter.
Default: RFNC 0
Syntax: RTdata
Acceptable values for data are 0 through 62 (even numbers only). The value for
data must correspond to the address of the network controller as shown in the
table later in this section.
Scan: 1. Scan this bar code:
Enter Accumulate Mode / RFNC Address
*+/$+RT*
*+/$+RT*
34
JANUS 900 MHz Radio Frquency Quick Reference Guide
Nuggetfont
2. Scan a numeric value for data from these bar codes:
*0* *5*
*0* *5*
*1* *6*
*1* *6*
*2* *7*
*2* *7*
*3* *8*
*3* *8*
*4* *9*
*4* *9*
3. Scan this bar code:
Exit Accumulate Mode
*-/*
*-/*
The value for data should correspond to the address set on the network
controller. All addresses apply to downline port 1 on the network controller.
35
JANUS 900 MHz Radio Frequency Quick Reference Guide
Network Controller Address
Nuggetfont
Network
Controller
0 0 16 32
1 2 17 34
2 4 18 36
3 6 19 38
4 8 20 40
510 2142
612 2244
714 2346
816 2448
918 2550
10 20 26 52
11 22 27 54
12 24 28 56
13 26 29 58
14 28 30 60
Address
<data>
Network
Controller
Address
<data>
15 30 31 62
36
I
Index
Index
I
A
Acknowledgment Delay, 17, 18, 19
address
device, 23
RFNC, 34
antenna, 8–10
attaching, 8
B
base radio unit, in an RF system, 7
battery
Duty Cycle Percent, 26
Duty Cycle Period, 27
maximizing life, 14
using duty cycle, 15
Battery icon
using for troubleshooting, 16
Broadcast Receipt, 18, 20
See
BRU,
base radio unit
C
Channel Allow, 12, 18, 21
channel search
enabling, 29
setting radio frequencies, 21
Channel Select, 11, 12, 18, 22
COM4, 12, 13
Communications Manager, using for RF
communications, 13
configuration application,
configuring
RF configuration parameters, 10, 17
using the RF link, 17
Connect icon or LED, described, 14
Connect icon, using for troubleshooting, 16
Connect LED, using for troubleshooting, 17
controller
configuring for version 1.3 or earlier, 11
configuring for version 2.0, 11
configuring the JANUS RF device for different
software versions, 11
in an RF system, 7
See
IC.EXE
D
data collection system, RF, 7
Data icon or LED, described, 14
default
reader configuration, 24
RF configuration parameters, 10
Device Address, 11, 12, 18, 23
Duty Cycle Percent, 15, 17, 18, 26
managing battery power, 26
Duty Cycle Period, 15, 17, 18, 27
managing battery power, 27
I
IC.EXE
using, 18
using to set up RF communications, 17
icons
connect, 14
data, 14
understanding, 13
Interactive Configuration application,
Interlnk/Intersvr, using, 13
IRL Desktop, using for RF communications, 13
See
IC.EXE
J
J2050
default configuration, 10
troubleshooting, 16
understanding the RF status LEDs, 13
JANUS PSK reference manual, 17
JANUS readers,
managing battery power, 14
troubleshooting, 15
using the RF status icons, 13
JANUS RF devices
configuring, 17
configuring for different controller software versions,
11
default configuration, 10
enabling RF communications, 33
in an RF system, 7
loading the RF protocol handler, 12
unloading the RF protocol handler, 12
using RF communications, 13
See
also JANUS RF devices
L
LEDs
connect, 14
data, 14
understanding, 13
loading the RF protocol handler, 12
Loopback, 18, 29
losing RF communications, 14, 15, 16
N
Network ID, 11, 12, 18, 29
P
power management, optimizing, 14
problems with RF communications, 1 5, 16
39
JANUS 900 MHz Radio Frequency Quick Reference Guide
R
radio frequency
setting for channel search, 21
setting the base frequency, 22
radio repeater
in an RF system, 7
setting Repeat Count, 31
reader
default configuration, 10
readers, See also JANUS RF devices
Repeat Count, 11, 18, 31
Retry Limit, 18, 32
RF communications
configuring, 10
by scanning bar code labels, 17, 19
the JANUS RF device
for network controller software versions, 11
using configuration application, 17
using IC.EXE, 18
using the RF link, 17
enabling RF protocol, 33
loading the RF protocol handler, 12
losing, 14
managing battery power, 14
setting up, 8
switching to serial communications, 13
troubleshooting, 15, 16
understanding the RF status icons and LEDs, 13
unloading the RF protocol handler, 12
using, 13
using Interlnk/Intersvr, 13
RF configuration parameters
Acknowledgment Delay, 17, 18, 19
Broadcast Receipt, 18, 20
changing, 11, 17
by scanning bar code labels, 19
using IC.EXE, 18
Channel Allow, 12, 18, 21
Channel Select, 11, 12, 18, 22
configuring for different controller software versions,
11
configuring using the RF link, 17
defaults, 10
Device Address, 11, 12, 18, 23
Duty Cycle Percent, 15, 17, 18, 26
Duty Cycle Period, 15, 17, 18, 27
Loopback, 18, 29
Network ID, 11, 12, 18, 29
Repeat Count, 11, 18, 31
Retry Limit, 18, 32
RF Protocol, 18, 33
RFNC Address, 11, 18, 34
RF interface, defined, 14
RF Protocol, 18, 33
RF protocol handler
loading, 12
troubleshooting, 15, 16
unloading, 12
RF status
connected, 14
data, 14
RF system, overview, 7
RFNC Address, 11, 18, 34
S
scanning bar code labels
using to configure RF communications, 17
using to configure RF configuration parameters, 19
serial communications
switching to RF communications, 13
setting up RF communications, attaching the antenna, 8
software libraries, using for RF communications, 13
software versions, controller
configuring the reader for
version 1.3 or earlier, 11
version 2.0, 11
standby, described, 26, 27
Storage mode, using, 15
T
troubleshooting
J2010, 15
J2050, 16
JR2020, 15
using network management commands, 15, 16
using the Loopback parameter, 29
V
Vehicle Mount Computer, See also JANUS RF devices.
See J2050
40
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