Single Chip Systems S556-EP RFID Transciever User Manual D Marketing Collateral 556 Man

Single Chip Systems Corporation RFID Transciever D Marketing Collateral 556 Man

Contents

revised user manual

INSTASCAN© SCANNER
MODEL S556-EP
Operations Manual
SCS Corporation
10905 Technology Place, San Diego, CA 92127
Phone: 858-485-9196 • Fax: 858-485-0561
www.scs-corp.com • info@scs-corp.com
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The products and programs described in this Operations Manual are
licensed products of SCS. This Operations Manual contains proprietary
information protected by copyright and this Operations Manual and all
accompanying hardware, software, and documentation are copyrighted.
SCS does not warrant that the hardware will work properly in all
environments and applications, and makes no warranty and representation,
either implied or expressed, with respect to the quality, performance, or
fitness for a particular purpose.
Information in this Operations Manual is subject to change without notice
and does not represent a commitment on the part of SCS. SCS assumes
no responsibility for incidental damage that may result do to any
inaccuracies that may be contained in this Operations Manual.
SCS makes no commitment to update or keep current the information in
this Operations Manual, and reserves the right to make changes to this
Operations Manual and/or product without notice.
No part of this manual may be reproduced or transmitted in any form or
by any means, electronic or mechanical, including photocopying, recording,
or information storage and retrieval systems, for any purpose other than
the purchaser’s personal use, without the express written permission of
SCS.
IBM is a registered trademark of International Business Machines Corporation.
MS-DOS and Windows are registered trademarks of Microsoft Corporation.
All other trademarks or registered trademarks listed belong to their respective owners.
InstaScan and Dura-label are trademarks of SCS Corporation.
Version 100479-2 Rev.A September
©Copyright 2000 SCS 10905 Technology Place San Diego, CA 92127
ii
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Contents
Chapter 1— Introduction ....................................................... 1
Advantages .................................................................... 2
S556-EP InstaScan Scanner ............................................. 4
What Else You Need ........................................................ 5
Summary of Chapters ...................................................... 6
Chapter 2 — Installation ....................................................... 7
LEDs and Connectors ...................................................... 7
Scanner Front / Scanner Rear ........................................... 8
Scanner Installation Steps .............................................. 10
Connecting External Antennas ........................................ 11
Placing the Antennas ..................................................... 12
Connecting to a PC Serial Port or RS-232 ....................... 13
Connecting to an AC Outlet........................................... 14
Configuring the Scanner ................................................ 15
Aligning the Antenna ..................................................... 18
Installing Dura-labels .................................................... 19
Reading Information from your Dura-labels ..................... 20
Writing Information to your Dura-label ............................ 21
Loading Your Application ............................................... 22
Chapter 3 — RF Communications ........................................ 23
Signal Interference ........................................................ 24
Signal Attenuation/Reflections ........................................ 25
Optimizing Performance ................................................ 26
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Chapter 4 — Troubleshooting .............................................. 27
Solving Problems ........................................................... 27
Contacting Customer Service ......................................... 30
Returning Your System.................................................... 31
Chapter 5 — Specifications ................................................. 32
SCS Patents .................................................................. 32
S556-EP Specifications .................................................. 33
Chapter 6 — DB-25 Connector Function ............................... 35
Receive Antenna Select Lines .......................................... 36
Transmit Antenna Select Lines ......................................... 37
Peripheral Inputs ........................................................... 37
Peripheral Outputs ........................................................ 38
Limited Warranty ........................................................... 40
FCC Part 90 Compliance .............................................. 40
Radio Frequency exposure limits ..................................... 41
Disclaimer .................................................................... 41
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Chapter 1
Introduction
The S556-EP InstaScan scanners and Dura-label Radio Frequency
(RF) Identification Tags developed by SCS are state-of-the-art data
gathering and inspection systems that combine sophisticated
Interactive Identification technology in a compact form factor. This unique
synergy allows our system to integrate seamlessly into — and significantly
increase productivity for — a wide range of applications and environments.
This system consists of the following components:
A scanner that is capable of writing information to and reading
information from Dura-labels using a read/write head (antenna).
The scanner conforms to FCC Part 90 specifications and can operate
with one to six externally connected antennas.
Dura-label RF tags that contain information programmed by the
scanner. These tags are designed to store information under extremely
harsh environments without requiring a battery, and the read/write
Dura-labels can store a permanent record of multiple events and
transactions.
Communications between the scanner and tags are conducted using a
revolutionary two-way technology that provides superior advantages over
conventional communication methods. The specific data being
communicated, and the amount of interaction you have with the scanner
and tag, may be determined by your application.
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Advantages
Data-gathering systems such as bar code readers use one-way
communication: a sensor reads information from a device, without any
interaction between the two devices.
Moreover, bar code systems are subject to line-of-sight limitations. As a
result, airborne contaminants such as dust, dirt, oil, and mist, as well as
label damage and objects residing outside the line of sight, result in
inefficient and erroneous results.
The SCS Interactive Identification System overcomes these restrictions by
using state-of-the-art technology. This technology allows the
scanner and tag to conduct ongoing two-way communications
that are not restricted by line-of-sight constraints.
Figure 1. Interactive Identification Technology
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This unique capability allows:
• Collective or selective data to be read from a single tag.
• Collective or selective data to be read from multiple tags without
requiring sorting or unpacking.
• Classes of tags to be filtered according to user-defined criteria.
This technology employs a superior interrogation feature that enables
applications to uniquely identify all tags in the scan field, without
misidentification or identifying the same tags multiple times.
It also uses a robust protocol that maintains a uniform per-tag scan time,
regardless of the number of tags in the scan field. The protocol provides
a flexible software application interface that can be customized to the
specific needs of particular industries and markets.
These unparalleled capabilities make our system an ideal solution for
logistics and warehousing, automatic sortation, pallet tracking, and anti-
diversion/anti-counterfeiting applications.
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S556-EP InstaScan Scanner
The S556-EP scanner is designed for applications or configurations that
require the scanner to be a considerable distance from tags, or where
numerous tags are required to be read simultaneously. Conveyor belt
applications are ideally suited to the scanner.
The scanner provides six pairs of coaxial connectors for supporting up to
six external antennas. Each antenna plugs into its own set of connectors
on the front panel of the scanner.
Figure 2.
S556-EP InstaScan Scanner
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What Else You Need
To complete your system, you need an IBM or compatible personal
computer with the following minimum system requirements:
•486 processor or better
•Compatible screen and keyboard
•9-pin RS-232 port
•Windows 95 or 98
• 16 MB of RAM (32+ MB recommended)
• FCC Part 90 Site License (U.S. Customers)
The applications you use to interface with this system may have additional
hardware and software requirements. For more information, consult the
manual that came with your applications.
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Summary of Chapters
Besides Chapter 1, this Operations Manual contains the following
additional chapters:
• Chapter 2, Installation – describes how to install the scanner
and tag(s)
• Chapter 3, RF Communication - provides information on radio
frequency (RF) communications
• Chapter 4, Troubleshooting – describes how to identify, resolve,
and avoid problems when using the scanner and tag. This
chapter also contains Customer Service information and
merchandise return instructions
• Chapter 5, Specifications – lists scanner specifications
• Chapter 6, DB-25 Connector Function – describes the 25-pin
connector of the S556-EP scanner
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Chapter 2
Installation
This chapter provides instructions for installing the S556-EP
scanner and tag(s).
LEDs and Connectors
The scanner provides the connectors and LEDs described in the follow-
ing sections and shown in Figure 3.
Figure 3. S556-EP InstaScan Scanner
Power Rocker
Switch
AC
Power
Power
On LED
Activity/
Error LED
Read LED
DB-25 Connector
RS-232
Fan Inlet
Coaxial Antenna
Connectors (12 total)
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Scanner Front
The front panel of the S556-EP scanner has three LEDs that indicate
power, activity, and transmitter ON/OFF (see Figure 3). Table 1 describes
the meanings of the LEDs.
The front panel also has an On/Off switch located below the three LEDs
(see Figure 3).
• In the ON position, the red Power ON LED should go ON, indicating
that the scanner is receiving power.
• If the OFF position, the scanner is not receiving power, even if the
connected to the power outlet.
The front panel also contains three connectors. The lower connector is a
standard DC power receptacle. The power cord provided with the scanner
should be plugged into this connector and into the wall outlet. For more
information, refer to “Connecting to an AC Outlet” on page 14.
The small multi-pin connector is the 9-pin RS-232 port. The RS-232
serial port connector allows the scanner to communicate with a personal
computer through the PC’s serial port. For more information on making
this connection, refer to page 13.
The large multi-pin connector is the 25 pin test connector. For more
information on this connector, refer to Chapter 6.
Scanner Rear
The S556-EP scanner rear panel houses a fan for cooling. Be sure to
allow for space between the fan and nearby objects to prevent overheating.
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Table 1. S556-EP Scanner LED Meanings
LED Color Status
Power ON Red ON = scanner is turned on
and receiving power from
external power supply
Activity/Error Yellow Flicker = scanner detects tag
information.
Constant Flickering with no tag
in the scanning field =
(a) Noisy environment or
possible interference,
resulting in diminished tag
reading.
(b) Loose cable or bad
connector
Transmit On Green On = Scanner is transmitting
RF signals.
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Scanner Installation Steps
The scanner installation consists of the following steps:
1. Position the scanner – locate near desired antenna locations.
2. Connect external antennas – see page 11.
3. Place the antenna for optimum read/write operation –
see page 12.
4. Connect the scanner to a computer serial port or RS-232 –
see page 13.
5. Connecting to an AC outlet – see page 14.
6. Configure the scanner - see page 15.
7. Align the antenna – see page 18.
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Connecting External Antennas
The front panel provides six pairs of coaxial antenna Receive/Transmit
connectors. Each pair of connectors accommodates a single external
antenna. Figure 4 shows the external antenna connections to the
scanner.
IThe S556-EP can be used with fewer than six antennas. Install
antennas sequentially, starting with the left-most connector pairs.
Figure 4. Antenna Connections
Coaxial Antenna
Connectors
Coaxial Antenna
Connectors
Input/Output
Coaxial Cables
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Placing the Antenna
Antenna placement is critical to ensuring that information is transmitted
to and from tags accurately. Observe the following guidelines when plac-
ing the antenna:
Locate the antenna away from metal objects, microwave ovens,
and other devices that may induce radio frequency interference.
In addition, make sure there are no metallic surfaces between,
or in relative proximity to, the scanner and tag. For additional
placement considerations, refer to “RF Communications” on
page 23.
When reading, the antenna should be placed no more than 60 inches
from the objects bearing tags. When writing, the antenna should be no
more than 22 inches from objects bearing tags
ITags must reside within the scan field for at least 3 milliseconds for
information to be retrieved from them.
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Connecting to a PC Serial Port or RS-232
The scanner has a 9-pin female RS-232 connector that connects to a
serial port or RS-232 connector on an IBM or compatible personal
computer. The serial port can operate up to 57,600 bps.
To make this connection, you need:
An appropriately configured serial cable.
One of the following adapters, if your computer’s serial port does
not have a 9-pin connector:
-A 15-pin to 9-pin adapter, if your computer has a 15-pin serial
port connector.
-A 25-pin to 9-pin adapter, if your computer has a 25-pin serial
port connector.
These adapters are available from most computer and electronics
stores.
Use the following procedure to connect the scanner to your computer’s
serial port.
1. Attach the male connector on the serial cable to the 9-pin serial
connector on the scanner’s front panel (see Figure 3).
2. Connect the other end of the cable to your computer’s serial port.
Use an adapter, if appropriate, to make this connection.
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Connecting to an AC Outlet
The following procedure describes how to connect the scanner to an AC
Outlet.
1. Verify that the On/Off switch on the scanner front panel is in the
OFF position (see Figure 3).
2. Connect the power cord to the AC receptacle in the scanner front
panel (see Figure 3).
3. Connect the other end of the power cord to the wall outlet.
4. Set the On/Off switch to the ON position. The Power ON LED
lights.
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Configuring the Scanner
The following procedure will verify that the RS-232 link between the
scanner and the computer is working correctly.
1. Insert the supplied Series 5 Development and Demo Tools, Disk 1,
into an available floppy disk drive.
2. Open the “My Computer” icon on the desktop.
3. Open the floppy disk drive (typically A:).
4. Run the application “Setup.exe”
5. Installshield will launch and guide you through the installation of the
Series 5 Tools onto your computer.
6. Turn on the scanner and ensure that the antennas are connected to
the scanner. If you are using two or more antennas, connect each
antenna from left to right.
7. Select the “Series 5 Test Tool” icon in the Series 5 tools folder from
the start menu.
8. If the scanner is attached to COM1 or COM2, it will be recognized
by the application automatically. In the application dialog, you will
see the text “found scanner (rev XX.XX) on COMX”.
9. If the scanner is attached to COM3 or COM4, the application will
not recognize the scanner automatically. In the application dialog,
you will see the text “Can’t find Scanner, use Manual Connect.”
Select the appropriate COM PORT by pressing the down arrow in
the “Scanner <-> Host” frame. Hit the connect button. You should
see the text message “Connect: found scanner (revision XX.XX) on
COMX”.
IIf you receive the error message “Can’t find scanner on COMX” refer
to page 27 for troubleshooting procedures.
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10. Look for the text “Scanner type = XXXX” in the application dialog. If
“XXXX” is not “S556-EP”, select “S556-EP” from the Scanner menu
of the Series 5 Test Tool application.
11. Look for the text “Mode = ...” in the application dialog. If the mode
is not “Basic Function Test”, select “Basic Function Test” from the
Mode menu of the Series 5 Test Tool application.
12. There are three tests you must run in order to confirm that the scanner
is working correctly. These are “Read Test”, “List Test”, and “Write
Test”.
13. Select “Antenna 1” button at the top of the Series 5 Scanner Test
window. Position the tag in the antenna field, ensuring that the object
which the tag is attached is not between the antenna and tag.
14. Position a tag within 60 inches of the antenna.
15. Click the “Read Test” button. You should see the text “- Check Read:
PASS –“ appear in the Test Results box. If the test fails, follow the
instructions given by the application.
16. Remove all tags from around the antenna and click the “List Test”
button. Wait two seconds. If the test is successful, you should see
the following text appear in the Test Results box.
“- Check List –“
“List Start: OK”
“List Stop: OK”
“List Report: OK”
“Found 0 tags:”
“Place 1 tag in the field and run test again.”
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17. Each List Test is composed of three commands given to the scanner.
If the test is successful, all these tests should say “OK” after the test
name. The application will ask you to repeat the List Test with 1) A
single tag, and 2) two tags in front of the antenna. The test is com-
plete when the application successfully detects two tags.
18. The Write Test requires a write - capable tag. Position the object with
the tag within 22 inches of the antenna.
19. Click on the Write Test button and observe the results in the Test
Results box. If the test passes, you will see:
“- Check Write –“
“Write: OK”
20. If the test fails, follow the instructions given by the application. If you
repeatedly get the “Move tag closer to antenna” instruction, ensure
the tag is directly over the antenna and there are no objects between
the antenna and tag.
21. For each antenna that is connected to the scanner, repeat steps 13-
20 for that antenna.
22. This completes the test of the scanner.
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Aligning the Antenna
After verifying that the scanner is operating properly, use the following
procedure to align the antenna(s). Aligning the antenna(s) ensures
optimal performance.
1. Connect the scanner to COM1 or COM2 and turn the power on.
2. Run the application “Series 5 Test Tool” in the “Series 5 Tools”
folder in the start menu.
3. From the mode menu, choose “Antenna Alignment”.
4. Select the antenna you wish to align with the available antenna
buttons. Press the “Go” button.
5. Move the object with the tag into the “scanning area”, the point
where you intend to scan.
6. Adjust the antennas until the application indicates it detects a tag.
You can find the complete scanning field by moving the tag
around. When the application detects a tag, the window will flash
with the message “Label Found”. Press the “GO” button again to
stop the alignment test.
7. If you have other antennas connected, you can select the different
antennas by using the antenna buttons on the top of the window.
This completes the scanner installation procedure.
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Installing Dura-labels
Dura-label RF tags have a diminutive form factor that allows them to be
installed in areas that cannot accommodate conventional RF tags.
In addition, Dura-labels can communicate with the scanner without having
to be in the line-of-sight. This unique combination provides tremendous
flexibility when determining a location for placing tags.
In textile applications, for example, tags can be inserted into the front tail
of a shirt or the waistline of pants using a heat seal patch and a heat
press. Because this system does not require line-of-sight scanning, the
tag does not have to be visible to the scanner.
When considering locations for installing tags, make sure they are within
60 inches of the scanner antenna for at least 3 milliseconds so data (16-
bit word) can be read from the tag. Avoid locations where metal or
water is present because radio-frequency communication does not
penetrate metal and is absorbed by water.
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Reading Information from your Dura-labels
Once you have installed your tags, and have set-up your scanner sys-
tem, you are ready to begin.
1. Run the “Series 5 Demo” application in the “Series 5 Tools” folder in
the start menu.
2. The connect dialog box will appear, set COM Port to the port where
the scanner is connected, Baud Rate to the highest value supported
by your computer and cable length. Set “# of Antenna” to the
appropriate value then click the “Connect” button.
3. After a few seconds, the main SCS Demo dialog will come up.
The scanner is in List-ID mode. As a tag is moved into the field in
front of the antenna, you will see the ID of that label displayed under
Label ID.
4. Try having additional tags moved in front of an antenna. You can
also reset the display with the Clear button.
5. Double click on the ID of a tag to bring up detailed information
about that tag. This will bring up a tag dialog where you can see the
data in each of the memory locations of the label. Additional usage
of this dialog is described in the following section.
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Writing Information to Your Dura-label
Read/write tags can be written to using the scanner. Each bit of memory
is write once, read many (WORM). Meaning after you have written to a
specific bit, it is permanent and cannot be overwritten or erased. To add
more data to the tag you must write to a different bit. Another feature
included with each user-writable word of memory is a Write-Protect bit.
This bit allows you to protect an entire word (16 bits) after any or all of
the bits have been written.
1. Start the Series 5 Demo application as described in the previous
section.
2. Position an object with a tag in the field and double click on its ID to
bring up the tag dialog.
3. In the Write Protect frame, hit “Query All”. Any writeable memory
location will become editable (white), while write protected memory
locations will stay gray.
4. Move the mouse cursor over a memory location and click within that
location to edit it. Enter a new value and then hit “refresh” or move
the cursor to a different memory location and click. The application
will attempt to write the value you specified to the tag.
5. The status of the tag will be displayed in the status box at the lower
part of the screen. If the write was unsuccessful, the value in the
memory location will change back to reflect the value actually stored
there.
6. To write protect a memory location, move the cursor to a memory
location and click the “Set” button in the Write Protect section. The
memory location will change from a white background to a gray
background to show that it is now write protected.
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7. To write to a block of memory locations, use the commands in the
block section of the window. Enter the starting memory location in
the “From” window. Enter number of memory locations in the “Length”
window. The ending memory location will be automatically calculated
in the “To:” window. Click the box to the left of the “Write” text and
enter the data in the window below the “Write” command.
8. To write protect the entire block, click the box to the left of the “Write
Protect” text.
9. To complete the block write command, select the “Perform” button.
10. To return to the List ID mode, click the “OK” button.
Loading Your Application
After you install your system according to the instructions in this chapter,
you can load your application and begin reading information from the
Dura-labels. Your application will determine the amount of interaction
you have with the InstaScan Scanner and Dura-labels.
IIf you will be developing applications designed to interface to your
system, refer to the Software Development Disk for programming
information.
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In general, devices that communicate using radio frequency, such
as your system , can be sensitive to signal interference and signal
attenuation. This chapter provides tips for optimizing radio-
frequency (RF) communications with your InstaScan and Dura-label.
Topics in this chapter include:
•Signal interference — see page 24
•Signal attenuation/reflections — see page 25
•Optimizing performance — see page 26
Chapter 3
RF Communications
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Signal Interference
Signal interference is RF signals that interfere with the information being
exchanged between the tag and scanner. Signal interference can severely
diminish the scanner’s ability to read information from the tags. The
Activity LED on the scanner flickers constantly if it detects signal
interference.
The source of the interfering signals may be:
•An RF system, such as an RF local-area network (LAN) or another
Interactive Identification system, located close to your system.
•Security gates, garage doors, or similar devices that emit RF signals.
•Appliances such as microwave ovens.
The effects of these noise sources are localized and can be eliminated by
relocating the scanner and its antenna.
Your system’s communication capabilities are significantly reduced when
the noise level perceived by the system exceeds the strength of signals
received.
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Signal Attenuation/Reflections
Signal attenuation is the loss of signal strength that occurs naturally
over distances, but which can also be caused by RF barriers in the
signal path.
Examples of such barriers include:
•Enclosed locations that have concrete walls, floors, and ceilings.
•Metal surfaces surrounding the antenna or tag.
•Water or other fluids surrounding the antenna or tag.
Almost every object (furniture, partitions, and people) in the path of a
signal causes some degree of attenuation. The effects can be minimized
by careful antenna placement.
The reflection from metal or metallic surfaces behind the tag can also
affect signal attenuation. In some cases, this may increase the read
distance slightly, while inducing intermittent “dead” spots within the read
field that permit little or no communication between the scanner and
tag.
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Optimizing Performance
While it is not possible to predict how the system will perform in any
given environment, observing the following guidelines will help optimize
performance in your environments and applications:
Carefully plan the placement of the scanner antenna.
The antennas can be extended extended approximately ten feet from
the scanner depending on cable length purchased for the application.
I The scanner antenna should never be disassembled, altered,
or modified except by an authorized technician. Any unauthorized
antennas modifications can void your warranty.
Consider the environment’s RF characteristics, including construction
materials, office plan (closed or open), and the presence of windows
and ducting. The RF field pattern, and the reading distance, may be
influenced by nearby metal objects, such as appliances, equipment,
metal wall framing, and wire coat hangers.
Ensure that objects containing tags are no more than 60 inches
from the antenna and remain in the scan field for at least 3
milliseconds.
To avoid mutual interference when installing more than one tag in
the same object, allow a sufficient distance between the tag. The
maximum interference occurs when tags within the same object are
within two inches of each other and nearly equidistant from the
scanner antenna.
Never apply chemicals to the tags. Certain chemicals, such as
alcohol, may have little or no effect at room temperature, but may
become corrosive at higher temperatures.
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27
This chapter provides troubleshooting information you can use in
the unlikely event you have a problem with your system. Customer
Service information and merchandise return instructions are included
in this chapter.
Solving Problems
The following table identifies scanner and tag problems and provides
suggestions for resolving the problem.
Chapter 4
Troubleshooting
Problem Probable Cause Solution
The Power ON LED does
not light when you turn
on the scanner
The AC outlet may
not be working.
Plug another electrical
appliance, such as a
lamp, into the outlet and
turn it on. If the
appliance does not work,
plug the scanner into a
different outlet.
The AC outlet may be
controlled by a wall
switch.
Set the wall switch to
provide AC power to the
outlet, or use an outlet to
be controlled by a switch.
Table 2. Problem Solving
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Problem Probable Cause Solution
The Activity/Error LED
does not light hen you
configure the scanner.
You may have a faulty
tag.
Try another tag.
The scanner may be
faulty.
Use the Series 5 Test
utilities to verify scanner
operation (see
"Configuring the Scanner"
on page 15)
The antenna cable may
be faulty.
Contact SCS Customer
Service (see page 30).
You receive an error
message when
configuring the scanner.
The scanner may not be
turned on.
Verify that the Power ON
LED is lit.
The scanner’s serial port
connection to your
computer may not be
secure.
Verify the scanner-to-
serial port connection. If
you are using a serial
port adapter, make sure
the adapter connections
are secure.
The Series 5 Test
programs are accesing a
different a different Com
Port than the one
connected.
Switch the serial cable to
Com Port 1 or set the
Com Port being used.
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Problem Probable Cause Solution
Information could not be
read from the tag.
The tag may be outside of
the scanning area.
Make sure the tag is no
more than 60 inches from
the scanner.
The tag may have passed
too quickly past the
scanner.
Make sure the tag is in
the scanning area for at
least 3 milliseconds.
No RF Power The supplied SCS
Diagnostic tag may be
used to verify that the
scanner is transmitting RF
power. When held within
a few inches of the
transmit antenna, the LED
on the Diagnostic tag will
glow Red, indicating the
presence of the RF field.
Same as above, but
the Activity/Error LED
flickers constantly.
RF Interference is
disrupting scanner-to-tag
communications.
See “Chapter 3-RF
Communications” for
suggestions on improving
communications.
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30
Contacting Customer Service
If you encounter a problem using your system that you cannot resolve,
contact Customer Service:
Before contacting CUSTOMER SERVICE, please have the following
information available:
1. InstaScan Scanner Information:
•InstaScan Model Number
•Serial Number, located on the bottom of scanner
•Any modifications made to the scanner or tags
•Location where system is installed
2. Computer Information:
•Computer Brand and Model number
•Processor speed and available RAM
•COM Port used
SCS Support (858) 485-9196
8:00 a.m. – 5:00 p.m. PST
Email – techsupport@SCS-Corp.com
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31
Returning Your System
If SCS Customer Service determines you need to return your system for
service, the Service Representative will give you a Return Merchandise
Authorization (RMA). Write this number on the outside of the box containing
the returned system, and on a slip of paper inside the box, so your return
can be processed quickly.
Return only your scanner, antenna, cable, and adapter. Do not return
accessories, such as the Diagnostic Label or the diskette containing the
Scanner configuration program.
Follow these steps to return your scanner and accessories for service:
1. Carefully pack your scanner and accessories in the original static-
protected bubble wrap and container. If you no longer have the
original container, use a protected box.
2. Use filler material to cover the items in the box.
3. Add a note with the RMA number inside the package.
4. Write the RMA number and the word FRAGILE on the outside of the
package in large, legible writing.
5. Address the package to:
SCS Corporation
10905 Technology Place
San Diego, CA 92127
ATTN: RMA # __________________ (indicate your RMA number here)
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32
Chapter 5
Specifications
SCS Patents
SCS Corporation is currently holding the following patents. Other
patents outstanding.
•#4,424,579
•#4,442,507
•#4,933,735
•#5,148,256
•#5,296,722
•#5,407,851
•#5,496,763
•#4,796,074
•#5,095,362
•#5,583,819
•#5,686,341
•#5,856,788
•#5,963,144
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33
S556-EP Specifications
LEDs: One Red Power ON LED, one Yellow
Activity/Error LED and one Green
Transmit ON LED
Communication Method:RS-232
Serial transmission rate:Up to 57,600 bps
Connector: One DB-9F for RS-232
communications
One DB-25 for diagnostic use
Pin assignments: (DB9F) Pin 1 – Not used
Pin 2 - Transmit Data (Input)
Pin 3 - Receive Data (Output)
Pin 4 - Internally connected to Pin 6
Pin 5 - Protective Ground
Pin 6 - Internally connected to Pin 4
Pin 7 - Internally connected to Pin 8
Pin 8 - Internally connected to Pin 7
Pin 9 - Protective Ground
Power jack: Internal Power Module, External
Power cable
RF Output Power: 5 Watts
Power Consumption: 120 watts
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34
Ambient operating
temprature: 0° to 43° C (32° to 110° F)
Approved Standards: FCC Part 90
Maximum serial
cable length: 10 meters (30 Feet)
Dimensions: 36.8 cm x 40.6 cm x 14 cm
(14.5 in x 16 in x 5.5 in)
Weight: 5.5 Kg (12 lbs.)
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35
Pin #
Name Function
1 GND Ground
2 BUFCOMP Digital test signal: output of receiver comparator
3 GND Ground
4 PER_IN2 Peripheral input bit 2
5 PER_IN0 Peripheral input bit 0
6 PER_OUT6 Peripheral output bit 6
7 PER_OUT4 Peripheral output bit 4
8 TX_ASEL5 Transmit antenna select bit 5
9 TX_ASEL3 Transmit antenna select bit 3
10 TX_ASEL1 Transmit antenna select bit 1
11 RX-ASEL5 Receive antenna select bit 5
12 RX-ASEL3 Receive antenna select bit 3
13 RX_ASEL1 Receive antenna select bit 1
14 VCC +5 volts
15 BUFCOMPIN
Analog test signal: input to receiver comparator
Chapter 6
DB-25 Connector Function
Table 3. Pin assignments: (DB-25)
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36
Pin #
Name Function
16 PER_IN3 Peripheral input bit 3
17 PER_IN1 Peripheral input bit 1
18 BLANK Digital test signal: blanking signal
19 PER_OUT5 Peripheral output bit 5
20 PER_OUT3 Peripheral output bit 3
21 TX_ASEL4 Transmit antenna select bit 4
22 TX_ASEL2 Transmit antenna select bit 2
23 GND Ground
24 RX_ASEL4 Receive antenna select bit 4
25 RX-ASEL2 Receive antenna select bit 2
Receive Antenna Select Lines
Pins 13, 25, 12, 24, and 11 are the high order bits of the hardware
pins that select the receive antenna. Bit 0 is kept internal to the
interrogator. These lines are used to drive external multiplexers for
multi-antenna systems. They are controlled by:
1. Setting up the antenna select table in flash memory (if necessary)
using Load Antenna Table command.
2. Issue the Set Antenna Quantity command.
3. Default mode automatically cycles through all antennas. The
interrogator will freeze at a certain antenna selection by issuing
the Select Receive Antenna command.
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Transmit Antenna Select Lines
Pins 10, 22, 9, 21, and 8 are the high order bits of the hardware pins
that select the transmit antenna. Bit 0 is kept internal to the interroga-
tor. These lines are used to drive external multiplexers for multi-
antenna systems. They are controlled by:
1. Setting up the antenna select table in flash memory (if necessary)
using Load Antenna Table command.
2. Issue the Set Antenna Quantity command.
3. Default mode automatically cycles through all antennas. The
interrogator will freeze at a certain antenna selection by issuing
the Select Transmit Antenna command.
Peripheral Inputs
Pins 5, 17, 4, and 16 are TTL level inputs that can be read with the
Read Peripheral Inputs command.
* Note: VCC is nominally 5.0 volts.
Table 4. Input Characteristics
Description Min. Max. Units
Input high level voltage 2.0 VCC* Volts
Input low level voltage 0 0.8 Volts
Input signal transition
time
250 nS
Input leakage current -10 +10 µA
Input capacitance 10 pF
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Peripheral Outputs
There are 8 peripheral outputs internal to the interrogator. 4 of these are
available at the DB-25 connector: pins 20, 7, 19, and 6 can be controlled
by setting or resetting bits, 3, 4, 5 and/or 6 of the command data byte of
the Write Peripheral Outputs command. The outputs are compatible
with CMOS levels.
Table 5. Output Characteristics
*Note: VCC Min. is 4.75 volts, VCC is nominally 5.0 volts.
Description Min. Max. Units
High level output voltage @IOutputHigh
= 1.0 mA, VCC* Min.
VCC* – 0.5 Volts
Low level output voltage @IOutputHigh
= 12.0 mA, VCC* Min.
.4 Volts
Source current -1.0 mA
Sink current 12.0 mA
Ouput leakage current -10 +10 µA
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Buffered Comparator Input (BUFCOMPIN)
This is the analog output of the RF receiver. The pin must remain
unconnected, or deterioration of read capability will occur.
Buffered Comparator (BUFCOMP)
This is the digitized output of the RF receiver.
Receiver blanking signal (BLANK)
When low, the microcontroller is ignoring the output from the RF
receiver.
VCC
This is the 5.0 V regulated power for the interrogator. It should only be
used as a reference. Current drawn in excess of 50 mA may cause the
system to shut down.
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Limited Warranty
SCS warrants its Dura-label to be free from defects in workmanship and materials, under
normal use and service, for a period of ninety (90) days from receipt of products.
SCS warrants its Scanner to be free from defects in workmanship and materials, under
normal use and service, for a period of ninety (90) days from date of receipt.
If a product does not operate as warranted during its applicable warranty period, SCS
shall, at its option, repair the defective product or deliver to Customer an equivalent
product to replace the defective item. All products that are replaced shall become the
property of SCS. Replacement products may be new or reconditioned. The warranty for
replacement or reconditioned product is the same as the equivalent newly purchased
product.
SCS reserves the right to refuse to warranty repair any product that has been subjected to
any abnormal electrical, mechanical, or environmental abuse.
FCC Part 90 Compliance
The FCC has established rules that permit the Scanner and Label system to be used
within acceptable bounds of radio frequency emissions. Your Scanner and Label system
complies with Part 90 of the FCC Rules.
Operation of the Scanner and Label system is subject to the following conditions: This
device may not cause harmful interference; This device may accept any interference
received, including interference that may cause undesired operation.
This device complies with the limits for a Class B digital device, pursuant to Part 90. The
Class B limits help ensure that this device provides reasonable protection against
harmful interference in residential installation. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instructions in this manual, may cause harmful interference to radio communications.
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41
Radio Frequency (RF) exposure limits
for operators of this device
Operators of this device must have knowledge of their RF exposure conditions in order
for the device to comply with FCC-adopted RF exposure limits for persons in the
“controlled exposure environment”. The average RF exposure for operators is 5.0 mW/
cm2, which requires them to maintain an estimated separation distance of 22 cm or 8.5”
from the transmitter, while in operation. They should not remain closer than the
suggested distance for any continuous 6 minute interval. Holding “Tags” in front of the
transmitter for brief moments, at closer than 8.5” is allowed provided the average
exposure in any 6 minute interval is less than 5.0 mW/cm2. For example, if an operator
spends 50% of the time with his/her hands or body closer than 8.5” to the transmitter
while spending the other 50% of the time at more than 15” away, the allowed RF
exposure limits will be satisfied. Operators should use their own judgment to limit their
exposure to the allowed RF exposure limits with control of exposure conditions,
separation distance from the transmitter, and duration of exposure. While this device is
in operation, nearby persons who have no knowledge of being in the RF fields of this
device should be at least 20” away from the transmitter in order for this devise to be
compliant with the FCC-adopted RF exposure limits.
Disclaimer
Operation of any radio transmitting equipment, including the Scanner, may interfere with
the functionality of inadequately protected medical devices. Consult a physician or the
manufacturer of the medical device if you have any questions. Other electronic
equipment may also be subject to interference.
SCS Support (858) 485-9196
8:00 a.m. – 5:00 p.m. PST
Email – techsupport@SCS-Corp.com
556-EP Manual.P65 1/18/2001, 2:46 PM41

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