TAGSYS RFID Medio L400 User manual

Medio L400
User's Guide
Revision 1.8
June 2008

Medio L400
2/51 Revision 1.8 June 2008
Publishing Information
Disclaimer and Limitation of Liability
All information herein is either public information or is the property of and owned solely by TAGSYS who shall have and
keep the sole right to file patent applications or any other kind of intellectual property protection in connection with such
information.
Nothing herein shall be construed as implying or granting to you any rights, by license, grant or otherwise, under any
intellectual and/or industrial property rights of or concerning any of TAGSYS’ information.
This document can be used for informational, non-commercial, internal and personal use only provided that:
The copyright notice below, the confidentiality and proprietary legend and this full warning notice appear in all
copies.
This document shall not be posted on any network computer or broadcast in any media and no modification of any
part of this document shall be made.
Use for any other purpose is expressly prohibited and may result in severe civil and criminal liabilities.
The information contained in this document is provided “AS IS” without any warranty of any kind. Unless otherwise
expressly agreed in writing, TAGSYS makes no warranty as to the value or accuracy of information contained herein.
The document could include technical inaccuracies or typographical errors. Changes are periodically added to the
information herein. Furthermore, TAGSYS reserves the right to make any change or improvement in the specifications
data, information, and the like described herein, at any time.
Therefore TAGSYS assumes no liability and is not responsible for customer applications or product or software which
includes TAGSYS products.
TAGSYS HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS WITH REGARD TO THE INFORMATION
CONTAINED HEREIN, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT SHALL TAGSYS BE LIABLE, WHETHER
IN CONTRACT, TORT OR OTHERWISE, FOR ANY INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES OR ANY
DAMAGES WHATSOEVER INCLUDING BUT NOT LIMITED TO DAMAGES RESULTING FROM LOSS OF USE,
DATA, PROFITS, REVENUES, OR CUSTOMERS, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF INFORMATION CONTAINED IN THIS DOCUMENT.
TAGSYS does not and shall not warrant that this product/system/equipment will be resistant to all possible attacks, and
shall not incur, and disclaims, any liability in this respect. Even if each product is compliant with current security
standards in force on the date of their design, security mechanisms' resistance necessarily evolves according to the
state-of-the-art in security and notably under the emergence of new attacks. Under no circumstances shall TAGSYS be
held liable for any third party actions, and in particular in case of any successful attack against systems or equipment
incorporating TAGSYS products.
TAGSYS disclaims any liability with respect to security for direct, indirect, incidental or consequential damages that result
from any use of its products. It is further stressed that independent testing and verification by the person using the
product is particularly encouraged, especially in any application in which defective, incorrect, or insecure functioning
could result in damage to persons or property, denial of service, or loss of privacy.
© 2000-2008 TAGSYS. All rights reserved.
Microsoft, Visual C++, Windows, and Windows NT are either registered trademarks or trademarks of Microsoft
Corporation in the U.S.A. and/or other countries.
I-Code is a registered trademark of Philips.
Tag-It is a registered trademark of Texas Instruments.
TAGSYS and E-connectware are registered trademarks of TAGSYS
Printed in France.
TAGSYS – 180 Chemin de St Lambert, 13821 LA PENNE SUR HUVEAUNE, France.
Tel: [phone] / Fax: [phone]
Document Reference: DOC12451A8

Read This First
June 2008 Revision 1.8 3/51
Read This First
Welcome to the TAGSYS range of products operating at the 13.56 MHz frequency. This range of
products is used to implement high-quality RFID systems for demanding applications.
This document provides information about how to install and use the Medio L400 reader.
Audience
This document requires familiarity with RFID technology. It is intended for people in charge of
installing and using the product.
Conventions
Symbol Meaning
CAUTION: A note that advises users that a specific action could result in the loss of data or
damage the hardware.
WARNING: A note that advises users that a specific action may result in physical harm.
A note that provides additional information that helps the user performs a task or obtains the
best performance from the product.
If you need assistance
Please contact your nearest TAGSYS sales representative or the TAGSYS welcome desk at:
Telephone: [phone]
Fax: [phone]
E-Mail: [e-mail]
Website: http://www.tagsysrfid.com
Contact for Comments
We welcome your feedback to help us provide high quality documentation.
For technical comments, please contact our welcome desk:
Telephone: [phone]
Fax: [phone]
E-Mail: [e-mail]
Please remember to quote the Document Reference Number DOC12451A8, your job title and your
company.

Medio L400
4/51 Revision 1.8 June 2008
Quality Issues
TAGSYS implements stringent quality controls at all stages of its manufacturing process. However,
should you find a defect with this product, please notify your TAGSYS Quality Service
representative using the dedicated Product Return Form.
Telephone: [phone]
Fax: [phone]

Read This First
June 2008 Revision 1.8 5/51
Table of Contents
PUBLISHING INFORMATION __________________________________________________________ 2
D ISCLAIMER AND L IMITATION OF L IABILITY ___________________________________________________ 2
READ THIS FIRST ____________________________________________________________________ 3
A UDIENCE _____________________________________________________________________________ 3
C ONVENTIONS _________________________________________________________________________ 3
I F YOU NEED ASSISTANCE ________________________________________________________________ 3
C ONTACT FOR C OMMENTS _______________________________________________________________ 3
Q UALITY I SSUES _______________________________________________________________________ 4
1 FOR YOUR SAFETY _______________________________________________________________ 7
1.1 G ENERAL U SE ____________________________________________________________________ 7
1.2 C ARE AND M AINTENANCE ___________________________________________________________ 7
1.3 I MPORTANT S AFETY I NFORMATION ____________________________________________________ 8
1.3.1 O PERATING E NVIRONMENT ________________________________________________________ 8
2 CERTIFICATION___________________________________________________________________ 9
2.1 O CCUPATIONAL H EALTH AND S AFETY N OTICES _________________________________________ 9
2.2 R EGULATORY N OTICES _____________________________________________________________ 9
2.2.1 I N E UROPE (CE AND RTTE D IRECTIVES )_____________________________________________ 9
2.2.2 FCC ID C ROSS R EFERENCE T ABLE ________________________________________________ 10
2.2.3 I N USA (FCC D IRECTIVE )________________________________________________________ 13
2.2.4 I N C ANADA _____________________________________________________________________ 14
2.3 R O HS AND WEEE D IRECTIVES _____________________________________________________ 14
2.3.1 R O HS (R ESTRICTION OF THE USES OF CERTAIN H AZARDOUS S UBSTANCES )_______________ 14
2.3.2 WEEE (W ASTE E LECTRICAL AND E LECTRONIC E QUIPMENT )____________________________ 14
3 OVERVIEW ______________________________________________________________________ 15
3.1 K EY F EATURES ___________________________________________________________________ 16
3.2 D ELIVERY _______________________________________________________________________ 16
3.3 P HYSICAL D ESCRIPTION ___________________________________________________________ 17
3.3.1 F RONT P ANEL __________________________________________________________________ 17
3.3.2 R EAR P ANEL ___________________________________________________________________ 21
4 INSTALLATION __________________________________________________________________ 22
4.1 M ECHANICAL A SPECTS ____________________________________________________________ 22
4.2 C ABLING R EQUIREMENTS __________________________________________________________ 22
4.3 U SING USB I NTERFACE ____________________________________________________________ 23
4.3.1 I NSTALLING USB D RIVERS ________________________________________________________ 23
4.3.2 U SING THE USB INTERFACE _______________________________________________________ 23
4.4 U SING RS-232 I NTERFACE _________________________________________________________ 23
4.5 U SING 10/100 E THERNET I NTERFACE ________________________________________________ 23

Medio L400
6/51 Revision 1.8 June 2008
4.6 R ESTORING F ACTORY C ONFIGURATION _______________________________________________ 24
4.7 R UNNING T AGSYS E XPLORER FOR THE F IRST T IME _____________________________________ 24
4.7.1 I NSTALLING T AGSYS E XPLORER ___________________________________________________ 24
4.7.2 C ONNECTING TO A DEVICE USING T AGSYS E XPLORER W IZARD __________________________ 26
4.7.3 R EADING THE UID OF ISO 15693 TAGS _____________________________________________ 32
4.7.4 R EADING AND W RITING ISO 15693 TAG MEMORY _____________________________________ 33
4.7.5 U PGRADING S YSTEM OR R ADIO F IRMWARE __________________________________________ 34
5 ADVANCED NOTIONS ____________________________________________________________ 37
5.1 R EADER A RCHITECTURE ___________________________________________________________ 37
5.2 R EADER TO H OST P ROTOCOLS ______________________________________________________ 38
5.2.1 TAGSYS S TX NG _______________________________________________________________ 38
5.2.2 H EARTBEAT ____________________________________________________________________ 38
5.2.3 T ELNET ________________________________________________________________________ 39
5.2.4 S ERIAL CONSOLE _______________________________________________________________ 39
5.2.5 S TANDALONE MODE _____________________________________________________________ 40
5.3 R EADER OPERATION PRINCIPLES ____________________________________________________ 40
5.3.1 N OTION OF READ MODES _________________________________________________________ 40
5.3.2 N OTION OF EVENTS ______________________________________________________________ 41
6 TECHNICAL SPECIFICATIONS ____________________________________________________ 43
6.1 T ECHNICAL D ATA _________________________________________________________________ 43
6.2 M ECHANICAL D ATA ________________________________________________________________ 44
6.3 RS232 C ONNECTOR ______________________________________________________________ 45
6.4 GPIO C ONNECTOR _______________________________________________________________ 46
6.4.1 P IN A SSIGNMENT ________________________________________________________________ 46
6.4.2 E LECTRICAL C HARACTERISTICS ___________________________________________________ 46
6.4.3 U SING I NPUTS __________________________________________________________________ 46
6.4.4 U SING O UTPUTS ________________________________________________________________ 48
7 WARRANTY CONDITIONS ________________________________________________________ 49
7.1 W ARRANTY ______________________________________________________________________ 49
7.2 W ARRANTY E XCLUSIONS ___________________________________________________________ 49
7.2.1 G ENERAL P ROVISIONS ___________________________________________________________ 50
7.2.2 H OW TO R ETURN D EFECTIVE P RODUCTS ____________________________________________ 50

For Your Safety
June 2008 Revision 1.8 7/51
1 For Your Safety
1.1 General Use
The Medio L400 reader is designed to be reliable and to provide continuous, trouble-free service.
Please observe the following general tips:
Take care not to scratch the device. Keep the device clean. When working with the device,
use only TAGSYS-approved accessories.
This device is not waterproof and should not be exposed to rain or moisture. Under extreme
conditions, water may enter the circuitry.
Protect the device from extreme temperatures. For example, do not place the device in a
windowed area where the sun may cause extreme temperatures, and keep it away from
heaters and other heat sources.
Do not store or use the device in any location that is extremely dusty, damp, or wet.
Use a soft, damp cloth to clean the device. If the surface of the device becomes soiled,
clean it with a soft cloth moistened with a diluted window-cleaning solution.
1.2 Care and Maintenance
This device should be handled with care. The suggestions below will increase the lifetime of this
device.
•Keep the device and all parts and accessories out of the reach of small children.
•Keep the device dry. Precipitation, humidity and liquids contain minerals that will corrode
electronic circuits.
•Do not use or store the device in dusty, dirty areas. Its moving parts can be damaged.
•Do not store in hot areas. High temperatures can shorten the life of electronic devices,
damage batteries and warp or melt certain plastics.
•Do not store in cold areas. When the device warms up (to its normal temperature), moisture
can form inside the device, which may damage electronic circuit boards.
•Do not attempt to open the device. Non-professional handling of the device may damage it
and will void the TAGSYS warranty.
•Handle the device with care. Shock and vibration may break internal circuit boards.
•Do not clean the device with harsh chemicals, cleaning solvents or strong detergents.
Gently wipe the device with a soft cloth slightly dampened in a mild soap-and-water
solution.
•Do not paint the device. Paint may clog the device’s moving parts and prevent proper
operation. Paint with metallic contents may limit device performances.
•If the device or any accessory are not working properly, take it to your nearest qualified
TAGSYS representative.

Medio L400
8/51 Revision 1.8 June 2008
1.3 Important Safety Information
1.3.1 Operating Environment
When connecting the device or any accessory to another device, read its user’s guide for detailed
safety instructions. Do not connect incompatible products.
As with all RF equipment, users are advised that the equipment should only be used in its normal
operating mode described in this document.

Certification
June 2008 Revision 1.8 9/51
2 Certification
2.1 Occupational Health and Safety Notices
TAGSYS Products have been designed not to exceed the limits given in the European Standard
EN 50364 “Limitation of human exposure to electromagnetic fields from devices used in Electronic
Article Surveillance (EAS), Radio Frequency Identification (RFID) and similar applications” in
conjunction with the European Standard EN 50357 describing how to evaluate the exposure level.
It is the responsibility of the TAGSYS Partner to install the Medio L400 as described in TAGSYS
Documentation and with the appropriate antennas.
Modification of any TAGSYS System is prohibited without the written consent of TAGSYS.
Unauthorized modifications may void the conformity of the equipment to safety standards and will
void the TAGSYS warranty.
An RF fields survey has been carried out on all the TAGSYS System components, in accordance
with AS/NZS 2771.1: Radio Frequency Radiation, Part 1. According to this standard the maximum
allowable RF exposure levels (non-occupational) at 3 kHz to 300 GHz are 200 µW/cm2.
2.2 Regulatory Notices
An RFID system typically composed of an RF emission device such as the Medio L400 is subject
to national regulations that may differ by country.
One important item to consider is the maximum permissible magnetic field intensity at a distance of
10 meters from the antenna that must not exceed 42 dBµA/m in Europe and 38 dBµA/m in US.
The Medio L400 meets these limits.
2.2.1 In Europe (CE and RTTE Directives)
The Medio L400 complies (CE Declaration of Conformity granted) with the European EMC
directive.
The Medio L400 complies with the requirements of the Telecommunication Terminal Equipment
Act (FTEG) and the RTTE Directive 1995/5/EC.
It is the responsibility of the TAGSYS Reseller to install the Medio L400 as described in this
Reference guide or TAGSYS Documentation.
Any modification of the Medio L400 is prohibited without the written consent of TAGSYS.
Unauthorized modifications may void the conformity of the equipment to CE and RTTE Directives
and will void the TAGSYS warranty.
It is the responsibility of the TAGSYS Partner to install the Medio L400 as described in this
User’s Guide or in TAGSYS Documentation.
If a Medio L400 is further integrated in a different product, it is the responsibility of the
manufacturer of this complementary product to obtain the required approvals for this product.

Medio L400
10/51 Revision 1.8 June 2008
2.2.2 FCC ID Cross Reference Table
It is the responsibility of the TAGSYS Partner to install the Medio L400 as described in the table
below, taking care of only installing the right antenna configuration with the right power settings.
Table 1: Medio L400-2 FCC ID Cross reference Table
Antenna Outside
Dimension
Channel
Setting Multiplexer
Max.
Output
Power
Power Supply FCC ID
Aero LB
Antenna 250X250 Single Channel No
4W
FDF0453-A QHKMEDIOL400CHAN2
Aero LC
Antenna 400X500 Single Channel No
2W
FDF0453-A QHKMEDIOL400CHAN2
TR-HA1
Antenna 200X100 Single Channel No 2W
FDF0453-A QHKMEDIOL400CHAN2
TR-SA1
Antenna 400X500 Single Channel No 2W
FDF0453-A QHKMEDIOL400CHAN2
L-SA3
Antenna 250X330 Single Channel No 1.5W
FDF0453-A QHKMEDIOL400CHAN2
L-SA4
Antenna 220X220 Single Channel No 1W
FDF0453-A QHKMEDIOL400CHAN2
Aero LI
Antenna 250X250 Single Channel No 1W
FDF0453-A QHKMEDIOL400CHAN2
MAT
Antenna 130X480 Single Channel No 4W
FDF0453-A QHKMEDIOL400CHAN2
Aero
R200/300 200X300 Single Channel No
4W
FDF0453-A QHKMEDIOL400CHAN2
To comply with band edge regulation, when used in vertical upright position the Aero LB and
Aero LC antennas can read tags in the following RFID uplink protocols configurations
To comply with band edge regulation, when reading ISO15693 tags in vertical upright position
the Aero R200/300 antenna can read tags in the following RFID uplink protocols
configurations

Certification
June 2008 Revision 1.8 11/51
Table 2: Medio L400-4 FCC ID Cross reference Table
Antenna Outside
Dimension
Channel
Setting Multiplexer
Max.
Output
Power
Power Supply FCC ID
TR-CAU
Antenna 170X900 Quad- Channel Yes
2W
FDF0453-A QHKMEDIOL400CHAN4
Aero LB
Antenna 250X250 Quad- Channel Yes
2W
FDF0453-A QHKMEDIOL400CHAN4
Tunnel
antenna 500X500 Quad- Channel Yes 2W
ABL 7RM24025 QHKMEDIOL400CHAN4
In I-Code 1 (C270) parameters window set the uplink parameters as follow:
Bit Coding: “Standard” (1 out of 256 pulse)
To comply with band edge regulation, when used in vertical upright position the Aero LB
antenna can read tags in the following RFID uplink protocols configurations
To comply with band edge regulation, when reading ISO15693 tags TR-CAU antenna can
read tags in the following RFID uplink protocols configurations

Medio L400
12/51 Revision 1.8 June 2008
In ISO15693 Parameters window set the uplink parameters as follow:
Command modulation depth: 10% (ASK)
EOF modulation depth: 10% (ASK)
Data coding mode: 1 of 256

Certification
June 2008 Revision 1.8 13/51
2.2.3 In USA (FCC Directive)
The Medio L400 has been designed to comply with Part 15 of the FCC Rules. Furthermore typical
configurations listed section 2.2.2 have been successfully tested with Part 15 of the FCC rules
(FCC ID Numbers are listed on all system-mounted TAGSYS Antennas).
Medio L400-2 and Medio L400-4
WARNING TO USERS IN THE UNITED STATES
FEDERAL COMMUNCIATIONS COMMISSION (FCC) RADIO
INTERFERENCE STATEMENT 47 CFR Section 15.105(b)
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and if not installed and used in accordance with the instructions
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this 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:
▪Reorient or relocate the receiving antenna.
▪Increase the separation between the equipment and receiver.
▪Connect the equipment into an outlet on a circuit different to that to which the receiver is
connected.
▪Consult the dealer or an experienced radio/TV technician for help.
NO UNAUTHORIZED MODIFICATIONS
47 CFR Section 15.21
CAUTION: This equipment may not be modified, altered, or changed in any way without signed
written permission from TAGSYS SA. Unauthorized modification may void the equipment
authorization from the FCC and will void the TAGSYS warranty.
ANTENNA REQUIREMENT
47 CFR Section 15.203
CAUTION: This equipment must be professionally installed. The installer shall be responsible for
ensuring that the proper antenna is employed so that the limits in this part are not exceeded. Non-
professional installation or installation of the equipment with an improper antenna may void the
equipment authorization from the FCC and will void the TAGSYS warranty.
Operation is subject to the following two conditions: (1) The system devices may not cause harmful
interference, and (2) The system devices must accept any interference received, including
interference that may cause undesired operation.

Medio L400
14/51 Revision 1.8 June 2008
2.2.4 In Canada
To reduce potential radio interference to other users, the antenna type and its gain should be so
chosen that the equivalent isotropically radiated power (e.i.r.p) is no more than that permitted for
successful communication.
The Medio L400-2 device has been designed to operate with the antennas listed below, and
having a maximum gain of -25 dBi. Antenna not included in this list or having a gain greater than -
25 dBi are striclly prohibited for use with this device. The require antenna impedance is 50 ohms.
Aero LB and Aero LC antennas meet this requirement with a gain less than -25dBi.
2.3 RoHS and WEEE Directives
2.3.1 RoHS (Restriction of the uses of certain Hazardous Substances)
TAGSYS certifies that this product is compliant with the European Directive 2002/95/EC for the
restriction in Electric and Electronic Equipments (RoHS) of the use of the following hazardous
substances:
•Lead
•Mercury
•Cadmium
•Hexavalent Chromium
•Polybrominated biphenyl flame retardants
•Polybrominated diphenyl ether flame retardants
This declaration is based on information provided by our suppliers and subcontractors.
2.3.2 WEEE (Waste Electrical and Electronic Equipment)
This product bears the selective sorting symbol for waste electrical and
electronic equipment (WEEE)
This means that this product must be handled pursuant to European
Directive 2002/96/EC in order to be recycled or dismantled to minimize
its impact on the environment.
For further information, please contact your local or regional authorities.

Overview
June 2008 Revision 1.8 15/51
3 Overview
The Medio L400 is a long-range 13.56MHz RFID reader intended for RFID applications requiring a
high performance, long range RFID infrastructure.
The L400 uses advances in Digital Signal Processing (DSP) and RF Front End technology to
achieve breakthrough performance in read range and read speed with industry leading signal to
noise ratio. The L400 has been specifically designed to operate in noisy environments such as
manufacturing plants and distribution facilities while maintaining the highest levels of data integrity
for item level track and trace, inventory management and security. Designed as a network device,
the L400 conserves critical network bandwidth by filtering tag data to remove redundancies before
transmitting to enterprise systems.
With breakthrough sensor technology and self diagnostic capability, the L400 is the industry’s first
self-correcting intelligent RFID reader. The L400 can be remotely managed and administered to
ensure you get the highest levels of performance from your RFID infrastructure. The L400 and e-
connectware, TAGSYS’ comprehensive set of management and administrative tools, create an
intelligent platform to allow you to manage your RFID infrastructure just as you do a voice or data
network to enable scalable, secure and persistent RFID Quality of Service.

Medio L400
16/51 Revision 1.8 June 2008
3.1 Key Features
Table 3: Medio L400 Key Features
Description Medio L400
Operating Frequency 13.56 MHz
Chip Compatibility ISO15693
ISO18000-3 Mode 1
C370(I-Code SLI)
C270 (I-Code 1)
I-Code ePC
I-Code UID
Upgradable to the anticipated EPCglobal HF Gen2 Standard
Number of channels 2 (Medio L400-2)
4 (Medio L400-4)
RF Output Power 500mW to 5W (+/- 10%)
Communication Interfaces RS232 (up to 115200 bauds)
USB 1.1
10/100 Ethernet
Communication Protocols TAGSYS StxNG
Telnet & Serial Console
Standalone Mode
Heartbeat
I/O Ports (GPIO) 4 Inputs
4 Outputs
User Interface LCD Screen With Backlight (2x16 Characters)
Keypad (Up, Down, Select)
Remote Monitoring Many health indicators are remotely accessible, such as :
. System uptime
. Read/Write count (per channel)
. RF power amplifiers consumption
. RF power amplifiers operating temperature
. Antennas tuning status,
. Real-time Raw signal capture, …
Firmware Remotely upgradeable
3.2 Delivery
The Medio L400 reader kit contains the following items:

Overview
June 2008 Revision 1.8 17/51
Table 4: Package Contents
Quantity Item
1 Medio L400-2 or Medio L400-4 reader
2 (Medio L400-2)
4 (Medio L400-4)
SMA/BNC adapter
1 USB cable
1 24 V power supply
2 CD-ROMs :
•Medio L400 User’s Guide & Designer’s guide
•USB Drivers for Windows® 2000, 2003, XP & Vista
•Tagsys Explorer software (reader configuration and upgrade on Windows® 9x,
NT®, 2000, XP & Vista platforms)
•Software development kits (SDKs) including documentation and sample codes
(Win32 Native DLL, .NET component, JAVA archive)
1 Welcome Letter / Product Return Form
3.3 Physical Description
3.3.1 Front Panel
The front panel is dedicated to RF & I/O connectors as well as a LCD & Keypad.
Figure 1: Front panel
•RF connectors and status LEDs :
The medio L400 can handle up to 2 (Medio L400-2) or 4 (Medio L400-4) antennas. The connectors
provided are SMA (SMA/BNC adapters are supplied with the reader). RF output power is software
selectable from 500mW to 5W (+/- 10%) in 250mW increments.
Two LEDs indicate current RF channel status (see Table 5)
GPIO Connector
& IO State LEDs
RF Connectors
& RF Status LEDs
LCD Screen
Keypad
(Up, Down, Select)

Medio L400
18/51 Revision 1.8 June 2008
Table 5: RF Status LEDs Description
Green Red Description
OFF OFF RF field is OFF.
ON OFF RF field is ON and channel antenna tuning and operating temperature are correct.
ON BLINKING
RF field is ON but channel is close to maximum operating temperature.
ON ON RF field is ON but channel antenna tuning is incorrect. Check antenna.
OFF ON
RF field was ON but was automatically turned OFF to protect reader’s hardware
because a major antenna failure was detected (such as open-circuit or short
circuit).
OFF BLINKING
RF field was ON but was automatically turned OFF to protect reader’s hardware
because channel exceeded maximum operating temperature.
•GPIO connector and status LEDs :
A Female DB-9 connector on the reader’s front panel implements 4 digital inputs and 4 digital
outputs (N-Channel Open Drain). Please see Technical Specifications section for more details.
Four red LEDs (one for each output) indicate the current outputs state, see Table 6
Table 6: Outputs State LEDs description
Red Description
OFF Corresponding output is OFF.
ON Corresponding output is ON and properly operating.
BLINKING Corresponding output was ON but was automatically turned OFF to protect the reader’s
hardware because an overload condition was detected.
Four green LEDs (one for each input) indicate current inputs state (see Table 7)
Table 7: Inputs State LEDs description
Green Description
OFF Corresponding input is OFF (low level).
ON Corresponding input is ON (high level). This is default state when nothing is connected to
the inputs (inputs have internal 3.3V pull-up resistors).
•LCD and Keypad :
A LCD and Keypad are available on the reader’s front panel. They can be used to display reader
status information (status mode) or display custom user messages sent by the host system (user
message mode).
In “user message mode”, the host system controls the LCD and keypad and can display custom
messages or read keypad state by sending specific commands to the reader.
In “status mode”, the reader controls the LCD and keypad and displays various reader state
information (see Table 8). Information is organized in pages. Pressing the “Up” key jumps to the

Overview
June 2008 Revision 1.8 19/51
previous information page, pressing the “Down” key jumps to next information page, Holding the
“Select” key displays more information (if available).

Medio L400
20/51 Revision 1.8 June 2008
Table 8: LCD Screen Pages description
Page
Description (“Select” key not pressed) Description (“Select”
key pressed)
1 Product name N/A
2 Operating system version N/A
3 Radio firmware version N/A
4 Date and Time N/A
5 Current Ethernet IP address, or “Interface down” if ethernet interface is not
active (for example because cable is not connected)
Ethernet MAC
address
6
Heartbeat service status :
. “Running…” indicates heartbeat is enabled
. “Inactive” indicates heartbeat is disabled
. “Interface down” indicates ethernet interface is not active (for example
because the Ethernet cable is not connected).
N/A
7
Telnet service status :
. “Connected” indicates a host is currently connected to the reader using
the telnet protocol.
. “Waiting…” indicates telnet service is running and ready to accept
incoming connections
. “Interface down” indicates Ethernet interface is not active (for example
because the Ethernet cable is not connected).
N/A
8
StxNG service status :
. “Connected (P)” indicates a host is currently connected to the reader
using TAGSYS StxNG protocol on primary TCP port.
. “Connected (S)” indicates a host is currently connected to the reader
using TAGSYS StxNG protocol on secondary TCP port.
. “Connected (P+S)” indicates 2 hosts are currently connected to the reader
using TAGSYS StxNG protocol on both primary and secondary TCP ports.
. “Waiting…” indicates StxNG service is running and ready to accept
incoming connections on either primary or secondary TCP ports.
. “Interface down” indicates Ethernet interface is not active (for example
because the Ethernet cable is not connected).
N/A
9
Serial port status and speed :
. “Waiting…” indicates no host is currently communicating with the reader
using serial port.
. “Connected” indicates a host is currently communicating with the reader
using serial port (either console or StxNG protocol)
N/A
10
USB port status :
. “Waiting…” indicates no host is currently communicating with the reader
using USB l port.
. “Connected” indicates a host is currently communicating with the reader
using USB port (either console or StxNG protocol)
. “Interface down” indicates USB interface is not active (for example
because the USB cable is not connected).
N/A
11
Standalone mode status :
. “Inactive” indicates standalone mode is not active
. “Running…” indicates standalone mode is currently active and reader
automatically reports tag reads through its serial port.
The total number of
tag reading events
since standalone
mode activation.