Nedap N V ECO41356 Inductive RFID card Reader operating on 13.56 MHz User Manual 14 Manual CGDECO41356

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Document Description	14_Manual CGDECO41356
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Document Title	14_Manual CGDECO41356
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Document Author:	erik.veurman

ECO READER
9965432 - User Manual
Version 1.6
05-02-14
TECHNICAL SUPPORT
Email address
info@nedaplibrix.com
Visitors address
Nedap Librix
Parallelweg 2d
Groenlo
The Netherlands
Postal address
Nedap Librix
P.O. box 102
7140 AC Groenlo
The Netherlands
Tel & Fax
Tel: +31(0)544 47 15 09
Fax: +31(0)544 46 58 14
ŠNedap Librix
Netherlands
Parallelweg 2d, 7141 DC Groenlo
The software / hardware described in this document / file is furnished under a license agreement and may be used only in
accordance with the terms of agreement.
Documentation Eco Reader copyright notice
Any technical documentation that is made available by Nedap Librix is the copyrighted work of Nedap Librix and is owned by
Nedap Librix.
NO WARRANTY. The technical documentation is being delivered to you and Nedap Librix makes no warranty as to its
accuracy or use. Any use of the technical documentation or the information contained herein is at the risk of the user.
Documentation may include technical or other inaccuracies or typographical errors. Nedap Librix has the right to make
changes without prior notice. No part of this publication may be copied without the express written permission of Nedap
Librix, Parallelweg 2d, 7141 DC Groenlo, The Netherlands.
Trademarks
Nedap, the Nedap logo and BiblioCheck are registered trademarks of Nedap N.V. Groenlo. Other product names mentioned
in this manual may be trademarks or registered trademarks of their respective companies and are hereby acknowledged.
Printed in the Netherlands.
TECHNICAL SUPPORT
PRECAUTIONS
INTRODUCTION
Before you start
Unpacking
HARDWARE INSTALLATION
Introduction
Connectors
Mounting the Eco Reader
10
Connecting the antennas
10
Connecting the alarm
14
Connecting power
15
Connecting customer counting {optional}
16
Connecting to usb {optional}
18
Connecting to ethernet {optional}
19
Connecting the relais {optional}
19
SOFTWARE CONFIGURATION
introduction
20
20
Rftest.lite or webpage?
20
Using the webpage
20
Network settings
21
Administrator access
24
Enabling power
24
Alarm settings
24
Librix online
26
Energy management
27
Firmware upgrade (with File update)
28
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CONTENTS
4
DISCLAIMER
29
APPENDIX A
Conversion from dvd to ecoreader
30
31
APPENDIX B
32
APPENDIX C: RELAYS
Relay used in nedap readers
35
35
Rf test
35
Contact ratings
35
Approved standards
35
APPENDIX D: CUSTOMER COUNTING PG45
36

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Installation of these products should be performed by a qualified installation partner.
Do not use the product in damp places.
If you smell smoke or other odors or hear a strange sound, unplug the power cord and
contact your dealer.
Make sure to connect the power cable to a properly earthed outlet.
Protect the power cord from physical or mechanical abuse, such as being twisted, kinked,
pinched, closed in a door, or walked upon. Pay particular attention to plugs, wall outlets, and
the point where the cord exits the Eco Reader.
Do not disassemble, repair or modify the product at your own discretion.
To reduce the risk of electrical shock or damage, do not expose this device to rain or
moisture.
Refer all servicing to qualified service personnel. Servicing is required when the system has
been damaged in any way, such as power supply cord or plug is damaged, liquid has been
spilled, or the device has been dropped.
When your Eco Reader is of version REV.A (which can be seen on top of the PCB), and/or it
has a warning sticker next to the BNC connectors, do not connect an unterminated coaxial
cable to one of its RF outputs! This may permanently damage the Eco Reader. To be sure,
turn off power before you do any work or maintenance on the Eco Reader.
FCC ID: CGDECO41356
IC: 1444A-ECO41356
Compliance statements (part15.19)
This device complies with part 15 of the FCC Rules and to RSS210 of Industry Canada.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause
undesired operation.
Cet appareil se conforme aux normes RSS210 exemptĂŠs de license du Industry Canada.
L'opĂŠration est soumis aux deux conditions suivantes:
(1) cet appareil ne doit causer aucune interfĂŠrence, et
(2) cet appareil doit accepter n'importe quelle interfĂŠrence, y inclus interfĂŠrence qui peut
causer une opĂŠration non pas voulu de cet appareil.
Warning (part15.21)
Changes or modifications not expressly approved by party responsible for compliance could
void the user’s authority to operate the equipment.
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PRECAUTIONS
INTRODUCTION
BEFORE YOU START
We would like to thank you for buying a Nedap Librix Eco Reader RFID system. The Eco Reader can
be used in combination with Nedap Librix anti-theft antennas, Nedap Librix Intelligent shelves and
Nedap Librix Autosort products. The Eco Reader is specially developed to have a low energy
consumption during operation, and the additional capability to switch its output power off at times
when it is not needed.
Some of its functions are:






Reads ISO15693 and ISO18000-3.1 compatible RFID tags
Has an internal 4 channel multiplexer, which allows it to connect to up to four
50Ω@13.56Mhz inductive loop antennas. Optionally this can be expanded by using
splitters, or an external multiplexer.
Can connect 4x customer counting aisles
Energy saving module
Librixonline.com connectivity
Internal webpage for easy configuration of settings
UNPACKING
Check your Eco Reader product box for the following items. If there are any items missing, contact
the local dealer where you purchased the product. The illustrations in this manual may differ from
the actual product and item.
1. An C5 power cable with European plug is delivered with the Eco Reader. Plugs for other
countries should be ordered separately.
INTRODUCTION
This chapter describes the physical installation of the Eco Reader, connecting antennas, cabling
customer counting and beeper, etc. For the software configuration please refer to the chapter
‘software configuration’.
The following paragraphs are in the same order as the installation steps should be performed.
CONNECTORS
The Eco Reader has several connectors to connect peripherals to. See the figures below for a
description.
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HARDWARE INSTALLATION
Figure 1 ECO Reader
8
Figure 2 - DIN rail clips
Figure 3 - BNC connectors
Figure 5 - Power connector
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Figure 4 - Peripheral connectors
RESET
TEST
Figure 6 - Top view, test and reset button
MOUNTING THE ECO READER
10
The Eco Reader can be mounted to a vertical surface by using the supplied DIN rail. Use the
appropriate screws and tools for the surface you are mounting on. The Eco Reader weighs
approximately 2.6kg, so make sure the surface can carry this weight. The Eco Reader can be ‘clicked’
on the DIN rail. Use the provided ‘power adapter mounting kit’ to attach the power supply to the
DIN rail to.
Although the Eco Reader does not produce much heat, and is passively cooled, it should not be
installed in a space where the temperature can rise above 50˚C.
CONNECTING THE ANTENNAS
The antenna connected to the Eco Reader should be a 50Ω@13.56Mhz resonant antenna. All Nedap
Librix gates fulfill this requirement. Only antennas produced or approved by Nedap Librix may be
connected to the Eco Reader.
When your Eco Reader is of version REV.A (which can be seen on top of the PCB), and/or it
has a warning sticker next to the BNC connectors, do not connect an unterminated coaxial
cable to one of its RF outputs! This may permanently damage the Eco Reader. To be sure,
turn off power before you do any work or maintenance on the Eco Reader.
Belden 9907 or RG58
Antennas must be connected to the Eco Reader by using coaxial cables and BNC connectors. The
coaxial cable should be of type ‘Belden 9907’ or ‘RG58’.
The BNC should be properly fit to the coaxial cable, where the outer wire does not touch the inner
wire.
Ten wire braided shield data cable
Use a braided shield (like data cable) for communication with customer counting, external
multiplexer, or any other external board. Nedap Librix recommends using a “LIYCY” data cable with
wire dimensions of 0.25mm2.
“LIYCY” means:
LI
= flexible cable
= PVC insulation
= shield of braided copper wire
= PVC outside
Figure 7 - "LIYCY" data cable
Filters
If the antennas were supplied with ferrite filters, put 1x filter around the coaxial cable leaving the
antenna, and 1x filter around the optional customer counting data cable leaving the antenna. Make
sure to place the filter near the antenna. When using PG or MDF antennas, these filters can be
placed in the foot of the antenna.
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Cables and wires
11
Figure 8 - cable filter
Security Antenna configurations
There are some possible configurations of connecting PG antennas to the Eco Reader based on the
number of aisles that are needed. The Eco Reader has an internal 4-way multiplexer, which allows
you to connect 4 antennas to one Eco Reader without any additional splitters or multiplexers. It is
not necessary to always connect 4 antennas, which makes it also possible for connecting only 2
antennas. Here are some examples:
PG45: 3-loop
PG45: 2-loop
PG50: 2-loop
PG50: 0-loop
12
Figure 9 - 1 aisle, antennas directly on Eco Reader, and connection for customer counting
PG45: 3-loop
PG45: 2-loop
PG50: 2-loop
PG50: 0-loop
PG50: 2-loop
Figure 10 - 2 aisles, antennas directly on Eco Reader, and connection for customer counting
PG45: 2-loop
PG45: 3-loop
PG45: 2-loop
PG45: 3-loop
PG50: 2-loop
PG50: 0-loop
PG50: 2-loop
PG50: 0-loop
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PG45: 2-loop
13
Figure 11 - 3 aisles, antennas directly on Eco Reader, and connection for customer counting
Coaxial cable length
To obtain the maximum reading performance on a PG gate with the Eco Reader, a specific cable
length should be used. The cable length is important for any connection, regardless if it is between
the reader and a splitter, or splitter and antenna, or directly from reader to antenna. The
appropriate cable length is dependent on the type of gate used and type of coaxial cable used.
There are different ways to determine the optimal cable length:
1. use the table in appendix A of this document. In this table the appropriate length for
different types of antennas is given.
2. use a vector impedance analyzer to measure the resistance and reactance of the antenna on
13.1Mhz or 13.9Mhz sidebands. On these sidebands the resistance should be as high as
possible (>150Ω), and the reactance should be zero. See a more detailed description in
appendix B of this document. Possible vector impedance analyzers are:
a. AEA Technology’s Via Bravo handheld
b. Rohde&Schwarz ZVL Vector Network Analyzer (advanced equipment)
3. use an SWR analyzer with the capability to measure resistance and reactance on 13.1Mhz or
13.9Mhz sideband, like the MFJ Enterprises’ MFJ-259B HF/VHF SWR analyzer. The more
detailed description in appendix B of this document, also applies to this device.
When the optimal cable length is determined, roll-up the excess cable length and mount it near the
Eco Reader.
CONNECTING THE ALARM
The buzzer that is delivered together with the Eco Reader should be connected with its red and black
wire to the +24V and BUZ1 pins on connector K8 of the Eco Reader. BUZ1 is an open collector NPN
input that is pulled to ground when an alarm should sound.
14
The connection schematic for the buzzer should be:


Red -> +24V
Black -> BUZ1
BUZ2 is a 2nd buzzer port to which another audible alarm can be connected with a different alarm
time (not standard delivered).
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Figure 12 - Schematic of open-collector BUZx output
15
CONNECTING POWER
The Eco Reader needs a +24V DC power supply of 65Watts, which is delivered together with unit.
The power connector K17 is on the top side of the Eco Reader. When the power is connected 4x
LEDs will light up on the middle of the PCB. All LEDs should light up, to ensure that all internal power
supplies are properly working. Some other status LEDs will also light up.
CONNECTING CUSTOMER COUNTING {OPTIONAL}
Up to 4x aisles of customer counting can be connected to the Eco Reader. Make sure to wire the
customer counting modules inside the PG antennas in the appropriate way. Connector K8 has 8x
inputs called CC1 up to CC8. For aisle 1 use CC1 and CC2, for aisle 2 use CC3 and CC4, etc. The
customer counting receivers should be connected in the right direction to properly distinguish an
incoming from an outgoing customer.
16
The correct connection of the customer counter inputs can be determined in test mode of the Eco
Reader. In this test mode the alarm light of the antennas will blink 4x slowly when the customer
counter detected an incoming customer, and they will blink 8x fast when it detected an outgoing
customer.
An example of the customer counting wiring is included in the appendix.
Test mode can be started by pressing the test button (see Figure 6) and holding it for some time. The
Eco Reader leaves mode 60 seconds after the last test was performed or it disconnects and reconnects the power to the Eco Reader.
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Figure 13 - customer counting test mode
17
CONNECTING TO USB {OPTIONAL}
The Eco Reader can be connected to a pc or laptop with an USB cable. On rev.A of the PCB a microusb connector should be used on the Eco Reader, on rev.E of the PCB a type B usb connector should
be used. This USB cable is delivered together with the Eco Reader.
Figure 14 USB Connector
18
A driver is required to communicate with the Eco Reader. This driver for windows is available on the
support site of Nedap Librix , but will be available natively for most other OS, like mac, linux. In
windows7 an automatic search of the driver on the internet, will also find the correct driver.
Once connected and installed the Eco Reader will be available on a virtual com port. To this a
connection can be made with programs like rftest.lite or any other Nedap Librix’ software. To be
able to configure all the settings of the Eco Reader, rftest.lite version 3.0.0 or higher is needed.
The Eco Reader can be connected to any 10/100Mbit network with shielded UTP cable. Use the LAN
connector on the PCB for this. The Eco Reader is default set to use DHCP to obtain an IP-address, but
can also be configured to a static IP-address. The program rftest.lite can be used to search for all Eco
Readers in the network, and in this way its IP-address can be retrieved.
Figure 15 Ethernet Connector
CONNECTING THE RELAIS {OPTIONAL}
The Eco Reader is equipped with 2x relais, with a common (C), normally open (NO) and normally
closed (NC) contact separately supplied on connector K8 for both of them. When an alarm sounds
the relais change their state. The amount of time before the relais change back to their ‘normal’
state can be configured in the settings.
The relais is of type ‘Omron G6S’ which can switch a purely resistive load with 2A at 30VDC. Please
refer to the datasheet of the relais on the manufacturer’s website for other specifications.
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CONNECTING TO ETHERNET {OPTIONAL}
19
SOFTWARE CONFIGURATION
INTRODUCTION
This chapter describes how the Eco Reader can be configured. Most configuration needs to be done
when the Eco Reader is used in combination with Security Antennas. When the Eco Reader is used in
combination with Intelligent shelves, it is controlled from a PC. Rftest.lite 3.0.0 or higher may be
required when communication is done over USB.
RFTEST.LITE OR WEBPAGE?
The Eco Reader can be configured with the windows program rftest.lite or over its internal webpage.
When rftest.lite is used the Eco Reader can be configured over its usb connection or over its network
connection. When the webpage is used the Eco Reader must have a network connection and a
properly configured IP-address. When the IP-address is entered in a web browser, the internal
configuration page of the Eco Reader is shown, after the ‘Settings’ tab in the top-right corner is
clicked. It is advised to use the latest version of Firefox (14.0 or higher) , Chrome (20.0 or higher) or
Internet Explorer (9 or higher) to make sure that the page is properly displayed.
20
Figure 16 - Eco Reader internal webpage
USING THE WEBPAGE
The internal webpage of the Eco Reader has 2x tabs, whose buttons are located in the top-right
corner of the browser window:


home
settings
Home page
On the home page the customer counter values combined for all connected gates are shown. There
are two icons which show incoming and outgoing customers. E.g. in Figure 16 there are 103
incoming, and 100 outgoing customers. Please refer to chapter “Connecting Customer Counting” for
instructions on how to properly connect the customer counter sensors to the Eco Reader. These
values are updated regularly, without the need to refresh the webpage.
Figure 17 - Customer counter reset and update
When ‘Reset’ is clicked, the customer counter values go back to zero. The ‘Update’ button forces a
refresh of the customer counter values.
In the bottom-right part of the home page a ‘world-globe’ icon is shown when the Eco Reader has a
connection to librixonline.com. When you do not see this, but there should be a connection, contact
your local IT specialist to resolve the network problems you are experiencing.
Figure 18 - World globe indiciating librixonline.com connection
In the top-left corner of the webpage the Eco Reader ‘leaf’ indicates if the Security Antennas are
enabled or disabled. When the radiation waves are coming out of the leaf, the antennas are working.
Figure 19 - 'Radiating' leaf means gates are enabled
Settings page
By clicking the ‘Settings’ tab in the top-right corner, the settings and other information of the Eco
Reader is displayed. The settings are grouped in a ‘tree’ shape, and can be expanded by clicking the
‘+’ sign in front of an option. The important settings are explained in the following paragraphs.
When a setting is changed, a ‘disk’
save the setting.
icon appears next to the setting. This icon has to be clicked to
NETWORK SETTINGS
By default the Eco Reader will use DHCP to obtain an IP-address on the local network. If a static IPaddress is required, the Eco Reader must be re-configured. Rftest.lite can be used to find an Eco
Reader on the network. Rftest.lite needs to run on a windows computer that is connected to that
network.
Finding the Eco Reader on the network
The following steps explain how the Eco Reader can be discovered on the network with rftest.lite.
Although version 3.0.0 is required for configuring all settings, discovering can already be done with
version 2.1.0 or higher of rftest.lite
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In the bottom-left part of the home page, the ‘Reset’ and ‘Update’ buttons are shown.
21
1. start rftest.lite on a windows based system that is connected to the network, and which has
no firewall installed, or any other system that prevents it from having full access to the
network.
2. In rftest.lite click on the ‘CFG’ button in the top-right corner
3. In the communication setup screen, select ‘Use UDP port’ and enter ‘8004’ as the UDP Port.
The UDP Host value is not important at this moment.
22
4. Click on the ‘..’ button behind ‘UDP Host:’.
5. Press ‘Search’ in the ‘Detector’ window that appears next.
8. When ‘RfidReader not active’ is reported, there is probably a problem in your network.
Contact your local IT specialist for assistance.
Configuring the network settings with a webpage
1. Go to the Settings > Communication > Tcp/Ip page
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6. All discovered Eco Readers will be displayed in the list, together with their IP-address,
hostname, mac address, etc. Double click on the Eco Reader of your interest, to select it.
7. Once selected press ‘Test’ in the ‘Communication Setup’ to test the communication with the
Eco Reader.
23
2. On the right part, the network name, DHCP setting, fixed IP-address, and all other network
settings can be changed. Please consult your local IT specialist for the right settings for your
network.
The other ‘Communication’ subpages, like ‘Udp’, ‘Webserver’, and ‘RS232’, are internal used
variables, which in 99.9% of the cases can be left to their default values. Changes should only be
done by a qualified person. Please contact Nedap Librix if you need assistance on these settings.
Configuring the IP-address with rftest.lite
1. Make sure there is a working connection between rftest.lite and the Eco Reader.
2. Click the ‘tuning’ button on the ‘Communication Setup’ windows of rftest.lite
3. Go to the first tab ‘IP Networking’. Over there you can find DHCP, and fixed IP-address
settings.
ADMINISTRATOR ACCESS
Some settings (like RFID output power) are only accessible when you are logged in into the Eco
Reader as administrator. In order to do this go to the top-right corner of the configuration webpage,
and enter in the ‘User’ and ‘Pass’ textboxes the following.
User: admin
Pass: admin
ENABLING POWER
To enable the output power of the Eco Reader, you need to be logged in as administrator as
described in the previous paragraph. When that is done, you will find an new item in the tree on the
left side of the page, called ‘RFID > Signal’. Click on this item and on the right hand side of the page a
setting for the output power will appear.
24
ALARM SETTINGS
The alarm settings need to be set when the Eco Reader is used in combination with security gates.
The alarm functionality should be switched off, when the Eco Reader is used in combination with
other software, that is controlling the Eco Reader. Simultaneous use of alarm and other software will
affect performance in a negative manner.
Internal webpage
1. Go to the Settings > Alarm > Alarm page
4. When AFI is chosen as Alarm Type, the AFI page can be used to set the AFI values for which
the alarm should go off.
a. AFI security on: the AFI value for which an alarm should go off
b. AFI security off: the AFI value which indicates an RFID tag with alarm switched off
c. UID Mask 1:
enter an UID mask, like ‘FFFFFFFFFFFFFFE0’ to minimize
false AFI alarms. Consult Nedap Librix for more help.
d. UID Mask 2:
enter an 2nd UID mask, like ‘FFFFFFFFFFFF04E0’ to minimize
false AFI alarms. Consult Nedap Librix for more help.
5. Use the monitoring page to enter the settings of the pc that is running
‘Bibliocheck4Monitor’, which allows the customer to see which ‘AFI’ book caused an alarm.
THIS FUNCTION WILL NOT WORK WITH ALARM TYPE “EAS”!
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2. Configure the settings as desired:
a. Alarm:
turn on/off the alarm functionality
b. Alarm type:
choose EAS, AFI or both as alarm type. EAS has better
performance than AFI, but is ‘only’ available in NXP chips.
c. Script to execute:
the behavior of the lights in the gates can be altered, by
selecting a different script. Either the lights on antennas on both mux output are
switched on, or only for the gate that detected the label.
d. EAS Relais 1 (ms):
time that the 1st relais stays on after an alarm
e. EAS Relais 2 (ms):
time that the 2nd relais stays on after an alarm
f. DC Insert 1 (ms):
time that the lights of the gate(s) on mux channel 1 stay on
after an alarm.
g. DC Insert 2 (ms):
time that the lights of the gate(s) on mux channel 2 stay on
after an alarm.
h. DC Insert 3 (ms):
time that the lights of the gate(s) on mux channel 2 stay on
after an alarm.
i. DC Insert 4 (ms):
time that the lights of the gate(s) on mux channel 2 stay on
after an alarm.
j. EAS Beeper 1 (ms):
time that the 1st beep stays on after an alarm
k. EAS Beeper 2 (ms):
time that the 2nd (optional) beeper stays on after an alarm
3. When EAS is chosen as Alarm Type, the EAS page can be used to change the detection
threshold. In 99.9% of the cases the default value is right.
25
a. Monitoring enabled:
Enable\disable the AFI monitoring
b. IP Address:
Enter the IP-address of the pc that is running
Bibliocheck4Monitor. Make sure the network is not blocking any communication
between the Eco Reader and this pc.
c. Port
Enter the port which should be used for
communication
d. Monitoring mode:
Specify here if only the ‘UID’ or ‘UID+Data’ should
be read from an alarming RFID tag.
e. Start address + Data length: Specify the start address and length of the data inside
the RFID tag, that should be read.
6. Use the mux page to select the internal 2x channel multiplexer, or an external combination
of multiplexers.
26
7.
a. External mux:
select if an external mux is connected. If it is, use RF1 port to
connect the multiplexer to. RF2, RF3 & RF4 is disabled. When ‘External mux’ is
disabled, the internal multiplexer is enabled, depending on the number of Antennas.
b. Antennas
Set the amount of antennas that are connected. For the
internal mux the maximum is 4.
LIBRIX ONLINE
When the Eco Reader should communicate with librixonline.com, it should have a registered
ReaderID. This ReaderID can be generated on the librixonline.com website, and should be copied to
the Eco Reader.
1. Go to Settings > Librix Online > Authorization
2. Enter the reader id in the field ‘ReaderID’
ENERGY MANAGEMENT
A powerful energy saving feature of the Eco Reader is the ability to turn on and off the power to the
gates at certain times of the day.
1. Go to Settings > Energy > Power scheduling
2. In ‘On (hour)’ enter the hour of the day the reader should turn on, and in ‘Off (hour)’ enter
the hour of the day the reader should turn off.
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As described in paragraph “Using the webpage” a ‘world globe’ in the bottom-right corner of the
page, indicates a successful connection to librixonline.com.
27
FIRMWARE UPGRADE (WITH FILE UPDATE)
Updating the Eco Reader firmware can only be done with the internal website via a network
connection.
Browse to the internal website of the Eco Reader and log in using the default username/ password :
admin/ admin ,
the tab “Firmware” should then appear:
Click the Browse… button and locate your “firmware__.pac”-file, and click Open.
Then click Update, a progress bar will show the status of the file upload process…
28
This information is furnished for guidance, and with no guarantee as to its accuracy or completeness;
its publication conveys no license under any patent or other right, nor does the publisher assume
liability for any consequence of its use; specifications and availability of goods mentioned in it are
subject to change without notice; it is not to be reproduced in any way, in whole or in part, without
the written consent of the publisher.
Nedap Librix
P.O. Box 102
NL-7140 AC Groenlo
The Netherlands
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DISCLAIMER
29
APPENDIX A
To obtain the maximum reading performance with the Eco Reader and various antenna gates, a
specific cable length should be used. The minimum, starting cable length l0 that should be used, is
given in the table below. When a longer cable is required, every time a fixed size cable ln should be
added. The total cable length l will be:
𝑙 = 𝑙0 + 𝑛 ∗ 𝑙𝑛 , 𝑤ℎ𝑒𝑟𝑒 𝑛 𝑖𝑠 0,1,2,3,4, …
RG58
Art.nr.
Description
l0(m) ln(m)
PG50 8-loop with CC and lamp
5.1
7.0
PG50 0-loop with CC and lamp
5.0
7.0
PG45 8-loop with CC and lamp
3.0
7.0
PG45 3-loop with CC and lamp
2.54 7.0
Ecoreader to 2-way splitter or multiplexer
5.0
*1
Calculated according to values in the Cable length guide for the DVD reader.
The average ratio between RG58 and Belden 9907 is 1 : 1.195
30
*when your product is not in this list, contact Nedap Librix or go to
BELDEN 9907*1
l0(m)
ln(m)
6.09
8.37
5.98
8.37
3.59
8.37
3.04
8.37
6.0
CONVERSION FROM DVD TO ECOREADER
When a DVD RFID Reader needs to be replaced with an Eco Reader, it is possible that you need to
change the cable length. It is advised to do the following:
1. Exchange the DVD for an Eco Reader and perform tests to see if the existing cables function
within expectations.
2. If the performance is not satisfactory, change the cable length by adding or removing some
cable. In the table below you can find the amount of cable that needs to be added or
removed
(depending
of
what
fits
best
in
the
situation).
USED CABLE
RG58
Belden 9907
ADD OR REMOVE
3.5m
4.18m
3. In case the performance is still not satisfactory perform the measurement steps in appendix
B.
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appendix b for instructions on how to manually determine the optimal cable length
31
APPENDIX B
The optimal cable length is obtained when the sidebands of a 50Ω antenna have a high resistance,
and low reactance. There are several ways of measuring this, but one popular way is a smith chart.
In Figure 20 a smith chart is shown of a pg45 3-loop antenna with the proper cable length. The green
circle shows the resistance and reactance of the antenna for frequencies from 13.06Mhz to
14.06Mhz. Marker 1 is set on 13.56Mhz, and it can be see that the resistance is ~50Ω and reactance
~j0Ω. Marker 2 & 3 are on the 13.1Mhz & 13.9Mhz sideband, and there the resistance is >180Ω and
the reactance approaches ~j0Ω.
32
Figure 20 - smith chart of pg45, 3-loop
Figure 21 shows the smith chart for a pg45 8-loop with improper cable length. The 13.1Mhz &
13.9Mhz sidebands are now ~1Ω and their reactances are not approaching j0Ω. Adding coaxial cable
to this antenna will make the circle rotate clock-wise around marker 1. In appendix a we gave a cable
length of about 3m to rotate the circle to correct position.
Figure 21 - PG45 8-loop with improper cable length
When a vector impedance analyzer like the:
AEA Technologies Via Bravo or Via Analyzer
*this analyzer can show a smith chart, but you need additional pc software. The analyzer
shows a bode-plot of the antenna over a specific frequency range, which can also be used to
determine
the
resistance
and
reactance
of
the
sidebands.
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
33


Rohde & Schwarz ZVL
* this advanced machine can show smith charts, but also has a spectrum analyzer included.
It is over qualified for the job, but a must have for any antenna enthusiast!
MFJ Enterprises
*simple machine which measures resistance and reactance for one frequency. It cannot plot any
charts, but does the trick.
is used, the optimal cable length can be determined manually, by performing the following steps:
1. Install the antenna gates and all wires (coaxial, data cables) as usual, but make sure that you
at least have an excess coaxial cable length of 7m.
2. Strip the coaxial cable, and manually insert it into your measuring device.
3. Measure the resistance and reactance. If the resistance is >180Ω and reactance is
approaching j0Ω, you’re cable length is fine, and go to step 6.
4. If the resistance if very low, cut off a piece of the coaxial cable (~10cm)
34
5. Go to step 2 and keep cutting the cable until you have reached the right cable length.
When you have determined the right cable length, connect a BNC connector to the cable, roll-up the
excess cable length, and mount it near the Eco Reader.
RELAY USED IN NEDAP READERS
The relays used in the Nedap readers used for RFID applications for libraries are Single Side Stable.
This implies that the switch contacts in the relay remain in a normal or stable position as long as no
power is applied to the coil. There is a normally open (N/O) and a normally closed (N/C) contact.
When power is applied to the coil, the contacts move to a new position, but stay in that position as
long as power is applied to the coil.
RF TEST
With RF Test, the closed time settings can be adjusted to support the hardware connected to the
reader.
CONTACT RATINGS
Load
Rated load
Contact material
Rated carry current
Max. switching voltage
Max. switching current
Max. switching capacity
Min. permissible load
APPROVED STANDARDS
UL1950 / CSA C22.2 No.950
Resistive load (
= 1)
0.5 A at 125 VAC; 2 A at 30 VDC
Ag (Au-clad)
2A
250 VAC, 220 DC
2A
62.5 VA, 60 W
10 ÂľA at 10 mVDC
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APPENDIX C: RELAYS
35
APPENDIX D: CUSTOMER COUNTING PG45

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