Thales Communications LML3013 User Manual 8

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Document Description	8
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Document Type	User Manual
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Date Submitted	1999-10-08 00:00:00
Date Available	1998-09-24 00:00:00
Creation Date	2001-05-22 10:04:06
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Document Lastmod	2001-05-22 10:04:07
Document Title	8

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COMMUNICATIONS
ORIGINE/ ISSUED
Do‘parlemsnl
Cnmmunlcalions
Hyparlniquencas
TOULOUSE
Elablissement lPlant
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INTERFACE MANUAL
FOR HYPERX READERS
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EVOLUTIONS SUCCESSIVES / SUCCESSIVE CHANGES
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INDEX
A 05 Nov 1997 W‘ Loben J Création (fllchierMANJNTDOO)
B 02 Dec 1997 W. Léberl Conecfions mineures, modit MTBM §3.1.4
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TABLE OF CONTENTS
1. GENERAL INFORMATION
1.1 DESCRIPTION OF THE HYPERX READERS .
1.2. BASIC OPERATION ..
I 3. POWER SUPPLY. ..
2. OVERVIEW...I
1.1. CONNECTORS
2. 2. FRONT PANE
2.3 ANTENNA INDICATOR LIGHT
3. CONFIGURING THE MODULAR READER“...
3.1 1502 AND WEEGAND INTERFACES
3 2 ASYNCI-IRDNOUS SERIAL LINK......
3.3 MESSAGE MODE .
3,4. RELAY OPERATION.
3 5. BUZZER OPERATION
3.6 CODE FILTERI'NG WITH THE DISTRIBUTOR CODE
3.7 SWITCHING MODE FOR DOUBLE READER .
3.8 ELECTRICAL INTERFACE
4. CONFIGURING THE COMPACT READER ...........
4 1. 1502 AND WIEGAND INTERFACES .
4 2. ASYNCHRONDUS SERIAL Lm
4.3. MESSAGE MODE
4.4. RELAY OPERATION
4.5 BUZZER OPERATIO
4.6 CODE FILTERING WITH THE DISTRIEUIOR CODE
4.7 ELECTRICAL INTERFACE
4.8 READING RANGE .....
4.9. OPERATING CHANNE
5. OPEN-COLLECTOR INTERFACES
5.1. MAGNETIC STRIPE CARD INTERFACE «1802»
5.2. WIEOAND COMPATIBLE INTERFACE.....,...
6. COMMUNICATION PROTOCOL FOR ASYNCHRONOUS INTERFACE
Eu;- L. «9.3... 21.
6 1 INTRODUCTION... ..
6 2. TRANSMISSION CHARACTERISTICS
6.3 READER IN POLLED MODE. 4
6.4. READER COMMANDS...“
5.5, READER IN INTERRUPT MODE.
7. EXTERNAL CONNECTIONS
7,1. 5-PI'N CONNECTOR - LINK TO HOST...
72, 3'PIN CONNECTOR - RELAY'ED CIRCUIT .
7 3. INSTALLATION AND CONNECTION PROCEDURES FOR THE ASYNCI-IRONOUS IJ'NKS .
7.4 OUTPUT CIRCUIT FOR OPEN—COLLECTOR INTERFACE... ..
3. APPENDIX A : JUMPER SETTINGS FOR MODULAR READER OLD VERSION ......
9. APPENDIX B : SWITCH SETTINGS FOR MODULAR READER NEW VERSION....
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10. APPENDIX C ; SWITCH SETTINGS FOR CONEPACT READER
11. APPENDIX D : DESCRIPTION OF TEST MODE .................
12. APPENDIX E : ALGORITHM FOR CALCULATING THE CRC16
13. APPENDIX F : CHANNEL FREQUENCIES FOR COMPACT READER ................
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1. GENERAL INFORMATION
1.1. Description of the HYPEFtX readers
l-lYPEFtXTM is a multi-tag dynamic identification system using microwaves. A ‘reader’ emits microwaves up to a
distance of one or more meters, depending on model. When a tag enters this zone, it modulates this radiation,
thereby sending its code back to the reader, which then processes the received signal and extracts the code:
There are two types of readers, modular (different modules assembled in a rack) and compact. For the modular
readers, SPl is the reader module which provides the host interface. SF'l performs digital processing of the
signal received from the microwave receiver module (SAM or LAM) and communication functions with a host.
it plugs into a custom rack for single-Europe size boards, taking up a slot of width SE. A custom backplane
provides interconnection between the modules. The compact reader is a compact version of the basic modular
reader in the form of a single box, It performs basically the same functions as the modular reader. with
differences In performance (see the appropriate product specifications).
Basic functions performed are :
. tag detection
- relay 24V/1A for external circuit-switching (controlled via host),
- communication interfaces:
- asynchronous serial link (RS 232, RS 422 or Rs 485) using JBUSW‘ / MODBUSTM protocol (polled or
interrupt)
or
- compatible magnetic stripe card format "ISO-7811/2”
or
- compatible WIEGAND tags
Certain functions described in this document are only relevant to recent firmware versions. Identify the version
you are equipped with and make sure the desired function is supported.
12. Basic operation
Tags are encoded with a HYPERX'" programming device. They can contain a user code of up to 30 characters
(digits, uppercase letters and some punctuation symbols). They also contain a 3-character distributor code.
When a lag is first detected. it is stored in an internal buffer and remains present for a time Tr. After this time,
the tag is removed from memory, At first detection, a message for the host interface is generated and the relay
is activated. in most cases (lSOQ, Wiegand, asynch link interrupt mode) this message is immediately sent, in
one case (asynch link polling mode) the message is only sent on request by the host. it a tag is detected by the
reader and it is still in memory (two detections of same tag within the time Tr), a new message is not normally
generated (exception is message mode 2, see chapter 3.3). The timer associated with this tag is then reset so
that the tag remains present for a further time Tr. Thus, for a tag which is presented to the reader and remains
there, only one message is generated after the initial detection, The tag must be removed for a time greater
than Tr in order for a second message to be generated.
In the case of an asynchronous link to the host, the default value for Tr is 1 second, however this value can be
chanQEd via a JBUS command. In the case of an l302 or Wiegand interface, the value is determined by board
jumper settings. The time Tr is hereafter referred to as the tag persistence time.
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Once a second, the status of the reader is monitored. This information is available to a host connected by a
serial JBUS link. It also affects the flashing rate of the CPU led on the front panel and the colour and flashing
rate of the antenna indicator lamp (see chapter 23).
In the case of the modular reader, an SP1 module can accommodate up to two receivers, each with its own
antenna. In this case, all modules making up the two receivers are present in the same wide bay. This is known
as a Double Reader. When a tag is detected, status information in the message to the host indicates at which
antenna the tag was detected. This information is only available it an asynchronous serial link connects the
reader to the host.
For the Double Reader, in some cases signal feed-through on lhe antenna cables can cause a tag detected by
one antenna to be “seen" by both receivers. This produces two detection messages. one corresponding to each
antenna. In order to counter this eflect, it it occurs. a special switching mode of operation can be used whereby
only one of the two receiver's is active at a time, switching taking place every 150ms. This means however that
during the 150ms, one at the antennas will not detect tags that may be present and this may reduce its reading
efficiency, especially for high-speed or multi-tag applications,
1.3. Power Supply
The acceptable input voltage range for both types of readers is 10VDC to 25VDC. The compact reader
consumption is roughly 250 mA at 12 VDC The consumption for modular readers depends on their
composition
WARNING : Live insertion or withdrawal of the SPI module can cause irreversible damage !
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2. OVERVIEW
2,1 Connectors
There are several PHOENIX - type connectors:
. The s-pin connector is for the serial link to a host.
- The Spin connector allows switching (using the internal relay) of an external circuit
. Forthe compact reader only, a 2»pin connector is for the DC power supply
(See chapter 7 for the wiring instructions)
For the modular reader, the connectors are accessible on the front panel of the SPl module. For the compact
reader the connectors are accessible from the back at the top
2.2, Front Panel
2.2,1. Modular reader
Figure 2-1: Front Panel of module SP1, comprising 2 Cannectsurs, 4 lads and 1 Reset button
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2.2.1 .1. Indicator lamps for maintenance
Four Ieds indicate the state of the module and tag activity.
Processor LED (CPU)
This green LED can have one at two flashing rates :
- slow, roughly 0.5s on 0.5s off. indicating all modules are working normally.
- fast, roughly 0.055 on 0.053 off. indicating a problem with one of the modules in the rack.
Any other behaviour indicates faulty processor operation.
NB : It the reset button is held down, this LED should be on.
Tag activity (BURST)
This red LED flashes (50ms) to indicate that a tag has been detected by the reader,
Sending message (TX)
This red LED indicates electrical activity on the front panel connector line 01 (TX for the HS-xxx link). it is
permanently on in the case of the interfaces 1502 and WIEGAND.
Receiving message (RX)
This red LED indicates electrical activity on the front panel connector line 04 (RX for the RS-xxx link),
2.2.1 .2, Fleset Button
Pushing this button applies a hardware reset to the processor.
NB : While the button is held in, the processor is in a reset state and the CPU and BURST LEDs are on. Once
released. the processor restarts.
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2.2.2. Compact reader
Figure 2-2 : Frontpanel OfCampaz‘l reader
A single red/green light is situated in the top-centre of the panel (see chapter 23 below),
2.3. Antenna lndicator Light
The LED on the antenna (or in the case of the compact readers, on the front panel) indicates the state of the
reader. It is under reader software control. It can also be controlled by the host using the JBUS protocol on an
asynchronous serial link. The state diagram below shows the different possible states during power-up (or after
a processor reset).
State Diagram :
To
Events :
internal hardware lault detected
autotest OK
module lault detected
module fault disappears
internal hardware lault detected
internal hardware fault disappears
received command "turn reader oft“
received command “turn reader on"
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State Name Antenna LED Emission CPU LED status word
ds dm
0 Test red, fixed off i on nd’ nd
1 Hardware fault see note 1 off 1 fast blink 0 nd
2 Normal green, renular blink on slow blink 1 l
3 Module fault reen. irregular blink fast blink 1 0
4 red. slow blink fast blink O x3
5‘ Reader OFF off off slow blink x x
6’ Tail derected off off 1 x
Notes :
1, The LED behaviour and the timeout duration depend on the nature of the fault. In the case of a faulty
configuration, the reset is immediate and the LED stays redl For a hardware fault, reset takes place after 4
seconds.
nd = not defined
x = don't care
This state only exists for the modular readers.
This state is not shown in order not too overload the diagram. It lasts for 1 second, then normal operation
resumes.
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3. CONFIGURING THE MODULAR READER
There are two versions of the module currentfy available, for simplicity hereafter referred to as the old version
and the new version. The old version consists of a mother board and a smaller daughter board using traditional
through-hole technology. Configuring is done using jumpers. The new version consists of a single board using
surface-mount technology. Configuring is done using miniature switches. In order to correctly configure the
module, you must identify the version you are installing. In the following paragraphs. text in italics refers to the
old version.
For old Versions only - some jumpers do not change position :
J1 - must be in position 2-3
JG - must be present
J7 - must be absent ~
J13 - must be present in position 2-3
These four jumpers no longer exist on the new version,
The different operating modes are selected using switches/jumpers which are either :
0 ON (present) or
- OFF (absent)
They are identified by their positions on four connectors:
0 J1 (8 positions 1 to B) /J3(1apositions 1 to 1D)
- J2 (4 positions 9 to 12) /JB (2 positions 11 to 12)
- J4 (8 positions 1 to 8) /J4 (Bposrfl'ons 1 to 8)
- JG (8 positions 1 to 8) /J5 (epositions 9 to 16)
J5
J4
JS
J3
Figure 3-1 s Connector Iacan‘onsfar SP1 module 4 old board
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J2
J1 SCI
Figure 3-2 : Connector [osmium for SP1 module . new board
The serial link to a host can be one of two types :
- Open-Collector (1302 or Wiegand)
- Asynchronous RS 232, RS 422 and HS 455.
M3; Only one of these interfaces can be active at a time
Certain switch / jumper combinations are forbidden. If these combinations are detected during the initialisation
period (immediately following a reset), an internal reset is generated after a period of 4 seconds. The following
combinations are forbidden :
. Message mode 3 together with WIEGAND interface
a Message mode 2 together with POLLlNG mode
3.1. i802 and WlEGAND Interfaces
3.1.1. ISO2 interface
Positions 1 to 4 of J4 must be as follows :
| 4 3 2 1 message iflgth
i OFF OFF OFF OFF Variable
i OFF OFF ON OFF fixed
3.1.2. WIEGAND Interface
Positions 1 to 4 of J4 must be as follows :
4 3 2 1
OFF OFF OFF ON
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3.1 .3, Tag persistence
Positions 5 and 6 of J4 must be as follows :
6 5 Persistence
ON ON 1 5
ON OFF 2 5
OFF ON 5 5
OFF OFF 10 S
3.1.4. Minimum Time Between Messages (MTBM)
Positions 7 and s 0! J4 musi be as follows :
8 7 MTBM
ON ON 1000 ms
ON OFF 100 ms
OFF ON 200 m5
OFF OFF 500ms
3.1.5. Tag message repelition
Position 3 of JG / 71 afJ4 must be as follows :
-' repetition
OFF disabled
ON enabled
3.2. Asynchronous serial link
3.2.1. Address
The module's physical address is the logical slave address that the hos1 application software uses lo address
lhe module (see 6.3).
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The four positions 1 to 4 of J4 determine the physical address:
4 3 2 1 Address
ON ON ON ON reserved use
ON ON ON OFF 1
ON ON OFF ON 2
ON ON OFF OFF 3
ON OFF ON ON 4
ON OFF ON OFF 5
ON OFF OFF ON 6 _]
ON OFF OFF OFF 7
OFF ON ON ON 8
OFF ON ON OFF 9
OFF ON OFF ON 10
OFF ON OFF OFF 11
OFF OFF ON ON 12
OFF OFF ON OFF see 3.1.1 ISOZ
OFF OFF OFF ON see 3.1.2 WIEGAND
OFF OFF OFF OFF see 3.1,1 ISOZ
NB : A JBUS command message which has a slave address equal to 0 corresponds to a broadcast message,
which explains why a reader cannot have an address of 0 for polling applications.
3.2.2. Character Format and Baud rate
" Baud rate is chosen usi
ng positions 5 and 6 of J4:
6 5 Baud rate
ON ON 9600 Bauds
ON OFF 4800 Bauds
OFF ON 1200 Bauds
OFF OFF 19200 Bauds
Format is chosen using
positions 7 and B of J4.
5 7 Formal
ON ON 7 bits data 1 bit even grit!
ON OFF 7 bits data 1 bit odd grit!
OFF ON 8 bits data no parity
OFF OFF not used
3.2.3. Protocol : polling or interrupt
The type of protocol, polled or by interrupt, is chosen with position 5 on J3 / 13 on JS :
roloool
0 FF interrupt
ON pa lling
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324. Frame format
Position 5 on J3 /16 on J5 determines the frame format, test (ASCII) or JBUS (binary).
frame format
| OFF Test - ASCII message
i ON Normal - JBUS frame
The test format allows connection to a dumb terminal for easy on-site display, For a description see chapter 11,
33. Message mode
The mode is chosen using positions 1 and 2 on JS /9 and 10 on J5. The mode determines in what cases the
detection of a tag causes a message to be transmitted to the host
Type 0 - Each time a tag is detected, a timer is armed (nominal value = is). Tag detection only causes a
message to be transmitted it this timer is not active. Each tag detected has a timer associated with
it.
Type 1 » This mode is no longer supported
At each tag detection, a message is transmitted to host. During message transmission, microwave
emission is switched off. Only available for the ISOQ intertace and the asynchronous start/stop
interface in the interrupt mode,
Type 2 -
Type 3 - When a tag “disappears” (is removed irom internal memory), an extra message is transmitted to
host which includes the tags code as well as the number of times that the badge was detected.This
number cannot be greater than 99. Not available for the Wiegand interface. Otherwise identical to
type 0.
2 10 1 9 messa emode
OFF OFF T e 3
OFF ON M39 2
ON OFF Type 1 4 no longer supported
ON ON T 9 0
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a,1,2
a;1
o on we
a,2,3
e a w
e;4
a;1,2
a;1
o 0. W
b, 6
» Events Actions
3 : tag is detected 1 : arm anti reread timer
b : timeout anti reread 2 : start message transmission
e : message is sent 3 : turn off reader
4 : turn on reader
6 : send tag disappearance message
Figure 5.3 . mm Graphs describing the thrze mexsage rmnmrission mode;
3.4. Relay operation
When a tag is detected. the relay operates. The switch //'umper in position 3 on JG / 11 on J5 determines one
of two modes 0! deactivation (for ISOZ and Wiegand, deactivation is automatic) :
. automatic relay deactivation after 2 second delay.
0 relay deactivation controlled by host via JBUS
Deactivation
0 FF automatic
ON under host control
3.5. Buzzer operation
The switch / jumper in position 4 on JS / 12 on J5 activates or deactivales the buzzer on tag detection. When
enabled, the buzzer emits a short sound (duration 50 ms) each time a tag is read.
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Buzzer
OFF Enabled
ON Disabled
When enabled, the buzzer sounds for 50ms at every tag detection.
3.6, Code filtering with the Distributor code
The switch //'umper in position 6 on JS / 14 on J5 enables or disables this feature. A description is given in
chapter 5.2.3. Applies only to ISOZ and Asynchronous interfaces. For the WIEGAND interface this featUre is
automatically enabled.
Filtering_
OFF Disabled
ON Enabled
3.7, Switching mode for Double reader
The switch /jumper in position 7 on JS / 15 on J5 enables or disables this feature. A description is given in
chapter 1.2. This feature must be disabled for single readers.
Switch mode
OFF Disabled
ON i Enabled
3.8. Electrical interface
The following positions on Jt and J2 / J3 and JB determine the electrical interface to the host, by fixing which
lines are physically routed through to the tront»pane| connector.
Type Position
HS-232 1. 11
HS-422 2. 4 9.10.12
RS-485 2. 4, 6, 7.12
ISOZ 3. 5. 8
WIEGAND 3, 5, 8
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4. CONFlGURING THE COMPACT READER
The different operating modes are selected using switches which are either:
- ON or
- OFF
They are identified by their positions on four connectors:
. J1 (12 positions1 to 12)
- J2 (8 positions 1 to 8)
0 J3 (8 positionst to B)
- J4 (8 positions 1 to 8)
Figure 4-1 .» Switch Iocahonsfor Configuration quumpar.’ reader
The serial link to a host can be one of two types :
- Open-Collector (ISOZ or Wiegand)
- Asynchronous RS 232, RS 422 and HS 485.
fi Only one of these interfaces can be active at a time
Certain switch combinations are forbidden. If these combinations are detected during the initialisation period
(immediately following a reset), an internal reset is generated after a period of 4 seconds. The following
combinations are forbidden :
- Message mode 3 together with WlEGAND interface
- Message mode 2 together with POLLlNG mode
4.1. I502 and WlEGAND Interfaces
4.1.1. ISOZ interface
Positions 1 to 4 of J2 must be as follows :
4 3 2 1 messae Ien h
OFF OFF OFF OFF variable
oFF OFF ON OFF fixed
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4.1.2. WIEGANDlnterface
Posifions 1 to 4 of J2 must be as follows :
4 3 2 1
OFF OFF oFF ON
4.1.3. Tag persistence
Positions 5 and 6 of J2 musI be as follows :
6 5 Persistence
ON ON ' 1 5
ON OFF 2 5
OFF ON 5 5
OFF OFF 10 s
4.1.4. Minimum Time Between Messages (MTBM)
Positions 7 and 8 of J2 must be as follows :
8 7 MTBM
ON ON 1000 ms
ON OFF 100 ms
" OFF ON 200 ms
OFF OFF 500 ms
4.1 ,5. Tag message repeIiIion
Posution 3 of JS must be as follows :
repetition
OFF disabled
ON
4.2. Asynchronous serial link
4.2.1. Address
The module's physical address is the logical slave address thal Ihe hosi application software uses Io address
the module (see 6.3).
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Communications
COMMUNICATIONS Hyperfréquences
The four positions 1 to 4 of J2 determine the physical address:
4 3 2 1 Address
ON ON ON ON MINITEL
ON ON ON OFF 1
ON ON OFF ON 2
ON ON OFF OFF 3
ON OFF ON ON 4
ON OFF ON OFF 5
ON OFF OFF ON 6
ON OFF OFF OFF 7
OFF ON ON ON 8
OFF ON ON OFF 9
OFF ON OFF ON 10
OFF ON OFF OFF 11
OFF OFF ON ON 12
OFF OFF ON OFF see 3.1.1 1502
OFF on OFF ON M
OFF OFF OFF OFF see3 ,1 I302
NB : A JBUS command message which has a slave address equal to 0 corresponds to a broadcast message,
which explains why a reader cannot have an address of 0 for polling applications.
422. Ctaracter Format and Baud rate
Baud rate is chosen using positions 5 and 6 of J2:
6 5 Baud rate
ON ON 9600 Bauds
ON OFF 4800 Bauds
OFF ON 1200 Bauds
OFF OFF 19200 Bauds
Format is chosen using positions 7 and 8 of J2:
8 7 Formal
ON ON 7 bits data 1 bit even My
ON OFF 7 bits data 1 bit odd parity
OFF ON 8 bits data no arit
OFF OFF not used
42,3, Protocol : polling or interrupt
The type at protocol, polled or by intermpt, is chosen with position 5 on JS:
protocol
0 FF interru -t
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4.2.4. Frame format
Position 8 on J3 determines the frame format, test (ASCil) or JBUS (binary).
frame format |
OFF Test ~ ASCII messa e
ON Normal - JBUS frame
The test format allows connection to a dumb terminal for easy on-site display. For a description see chapter 11.
4.3, Message mode
The mode is chosen using positions 1 and 2 on J3. The mode determines in what cases the detection of a tag
causes a message to be transmitted to the host.
Type 0 ~ Each time a tag is detected, a timer is armed (nominal value = 15). Tag detection only causes a
message to be transmitted it this timer is not active. Each tag detected has a timer associated with
it.
Type 1 - This modeis no longer supported
Type 2 - At each tag detection, a message is transmitted to host. During message transmission, microwave
emission is switched off. Only available for the l302 interface and the asynchronous start/stop
interface in the interrupt mode.
Type 3 - When a tag “disappears” (is removed trom internal memory). an extra message is transmitted to
host which includes the tag’s code as well as the number of times that the badge was detectedThis
number cannot be greater than 99. Not ayailabie for the Wiegand interface. Otherwise identical to
type 0.
messa- 9 mode
OFF OFF
For a graphical representation of how the modes work. see Figure 3-3.
4.4. Flelay operation
When a tag is detected, the relay operates. The switch in position 3 on J3 determines one of two modes of
deactivation (for [$02 and Wiegand, deactivation is automatic) :
- automatic relay deactivation after 2 second delay.
- relay deactivation controlled by host via JBUS
Deactivation
automatic
under host control
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4,5. Buzzer operation
The jumper in position 4 on J3 activates or deactivates the buzzer on tag detection. When enabled, the buzzer
emits a short sound (duration 50 ms) each time a tag is read.
l Buzzer
OFF Enabled
ON Disabled
4.6. Code filtering with the Distributor code
The switch in position 6 on J3 enables or disables this feature. A description is given in chapter 5.2.3. Applies
only to I302 and Asynchronous interfaces. For the WIEGAND intertace this feature is automatically enabled.
Filterin
4.7. Electrical interface
The following positions on J1 and J2 determine the electrical interface to the host, by fixing which lines are
physically routed through to the connector.
Type Position
RS-232 LL
FiS-422 2, 4, 9. 10.12
HS-485 2, 4. 6, 7,12
I802 3, 5, 8
WIEGAND 3, 5. 8
4.8, Reading Flange
The reading range can be coarsely adjusted using switches G and 7 on J4. Three ranges are possible :
7 5
OFF OFF
ON OFF
OFF ON
ON ON
4.9. Operating channel
The compact reader can operate using 29 different channels. Each channel corresponds to a separate
microwave frequency band. This is useful when several readers must be positioned close together. Using
different channels on each reader eliminates mutual interference. Positions 1 to 5 of J4 are used. The OFF
position for switches are indicated by a blank in order to make the table more readable.
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5 4 3 2 1 Channel
ON ON ON ON 1
ON ON ON ON 2
ON ON ON 3
ON ON ON ON 4
ON ON ON 5
ON ON ON 6
ON ON 7
ON ON ON ON 8
ON ON ON 9
ON ON ON 10
ON ON 11
ON ON ON 12
ON ON 13
ON ON 14
ON 15
ON ON ON ON 16
ON ON ON 17
ON ON ON 13 “1
ON ON 19
ON ON ON 20
ON ON 21
ON ON 22
ON 23
ON ON ON 24
ON ON 25
_. ON ON 26
ON 27
ON ON 25
ON 29
Table 4-1 : Microwave Channel selection
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5. OPEN-COLLECTOR INTERFACES
5.1. Magnetic Stripe Card Interface «ISOZ»
5.1 ,1 l Description
Using this interface allows the reader to take the place of a standard magnetic stripe card reader. This interface
consists of three signals, MDATA (negative logic) for the data , STROBE (active low) indicates when data are
valid, and PRES_BADGE (active low) a signal encompassing message transmission as shown below. The
characters are transmitted synchronously in a frame format at a rate of roughly 1000 bits/s.
STROBE
MDATA
STROBE . A ,
ouMDATA 1 ., , -,:',“ ' ' _
I I
PRES_BADGE—1——'—————-——|———i_—
—>l 14— |<-— 50 ms ———-l
2 ms
Figure 5-2 ,- Tuning Jhowmg rhe signal "Presence Badge
The STROBE and MDATA signals are open-collector outputs (circuit shown in figure 7-3), For proper
operation a pull-up resistor of about 1K ohm should be used.
5t1.2. Message format
A message consists of a preamble of 15 zeros (for receiver synchronisation), the data frame as descnbed
below, and a postamble of 10 zeros.The data (digits 0 to 9 only) are formatted into characters of 5 bits - 4 bits
for a ECD coding plus one bit for odd parity. The data is framed as shown below.
1 Character 1 Character 1 Character
START data END LFlC
The checksum (LRC) is the result of an exclusive-or function performed on all the preceding characters.
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——i
START character = OBH
END character = 1FH.
The contents of the data field depend upon the message mode chosen and the length, For a variable length
frame, this field begins with a three—character distributor code, if no distributor-code filtering is enabled,
followed by the usercode. For the fixed length frame, this field contains exactly 37 characters, the characters
after the user-code, if there are less than 37, are all equal to ODH.
In the case of message mode 3, the data also contains the number of times the tag was detected, a Mo-
character field. The special separation character OCH precedes this number.
The order of bit transmission for each character is LSB first.
Typical examples of the data field for a user code of length n digits :
message mode 0, length variable
I distributor code user code length = 3 + n
message mode 3, length variable
I distributor code user code I OCH nb. det length = 3 + n + 3
message mode 3, length variable, distributor-code filtering
user code | OCH nb. det length = n + 3
message mode 0, length fixed
distributor code user code ODH ODH ODH length = 37
message mode 3, length fixed
distributorcode usercode IOCH nb.det|ODH ODH ODH I Iength=37
message mode 3, length fixed, distributor-code filtering
usercods OCH nodetI ODH | ODH ODH length=37
5.1.3. Tag persistence
The tag persistence (the time that a tag is stored in internal memory) can be set to one of four values using the
board configuration (see 3.1.3) : 1 s, 2 s, 5 s and 10 seconds.
5.1.4. Tag code transmission
Two separate parameters can be set using the board configuration.
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The first is the minimum time between consecutiVe tag code transmissions (MTBM, see 3.1.4). This can be set
to one of four values, 100 ms, 200 ms, 500 ms and 1 5, allowing interconnection to readers with different
reaction times.
The second is the possibility of repeating the transmission of the tag code (see 3.1.5). This may be desirable in
certain cases. if this option is enabled, the tag code is sent a second time aftera time MTBM.
5.2. Wiegand compatible interface
5.2.1, Description
Using this interface allows the reader to take the place of a Wiegand~eftect card reader. This interface
comprises two signals, DATA “0" and DATA “1". A logical 0 produces a negative pulse on the DATA_0 line
and a logical one produces a negative pulse on the DATA_1 line. The timing is given in figure 5 below. The
data is transmitted synchronously in a frame format at a rate of roughly 2000 bits/s
NRZ
DATA " l ”
DATA "0"
Figure 5-3 - Timing for WIEGAND Interface.
The DATA_0 and DATA_1 signals are open-collector outputs (circuit shown in Figure 7-3). For proper operation
a pull-up resistor of about 1K ohm should he used.
5.2.2. Message format
The Wiegand message has a fixed length of 26 bits. and the following structure :
bitnumber- 1 2 910 25 26
EP FC CC OP
EP » Even parity bit
if the number of ones in the bits 2 to 13 is odd, then this bit is equal to 1, otherwise it is equal to 0.
FC - Facility Code
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length = 5 bits (bits 2 to 9)
A number, 0 to 255. binary-coded using 8 bits, MSB is bit 2.
CC - Card Code
length =16 bits (bits 10 to 25)
A number, 0 to 65535, binary—coded using 16 bits, MSB is bit 10.
OF - Odd parity bit
It the number of ones in the bits 14 to 25 is even, then this bit is equal to 1, otherwise it is equal to 0.
Message transmission begins with bit 1.
5.2.3. Distributor code auto-learn mode
This facility is automatically enabled it the Wiegand interface is selected, However, it can also be enabled for
the other interfaces if desired.
As well as the user data field. which for Wiegand corresponds to the 26 bit frame described above, the
HYPERX tag contains a three character distributor code which is unique for each installation. This code is
automatically added when the tag is first programmed.
The distributor code contained in the first tag which is detected after a processor reset becomes the reference
distributor code. It is memorized, and the distributor codes of all succeeding tags are compared to this
reference it they are the same, lhe tag is allowed. if not the tag is reiected. In the former case, the message
transmitted to the host does not contain this distributor code,
The distributor code consists of three ASCll digits, 0 - 9, allowing 1 000 combinations.
5.2.4. Tag persistence
The tag persistence (the time that a tag is stored in internal memory) can be set to one of four values using the
board configuration (see 313) : 1 s, 2 s. 5 s and 10 seconds.
5.2.5. Tag code transmission
Two separate parameters can be set using the board configuration.
The first is the minimum time between consecutive tag code transmissions (MTBM, see 3.1.4), This can be set
to one of four values, 100 ms, 200 ms, 500 ms and 1 s. allowing interconnection to readers with different
reaction times.
The second is the possibility of repeating the transmission of the tag code (see 3.1 .5). This may be desirable in
certain cases. If this option is enabled. the lag code is sent a second time after a time MTBM.
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Communications
COM MUN ICATIO NS Hyperfréquenm
6. COMMUNICATION PROTOCOL FOR ASYNCHRONOUS INTERFACE
6.1. Introduction
Readers can be connected to a host using either a point-to-point configuration or a multipoint (bus)
configuration. Furthermore, two types of protocol are possible : polling by host or interrupt.
The interrupt protocol uses either the JBUSW frame format or the test mode format.
NB :
(t) The interrupt protocol can only be used on a point to point link.
(2) JBUS'M is registered by APRIL , MODBUST" is registered by GOULD MODICON
A multipoint or network configuration using the standards for differentlal data transmission FIS-485 (2-wire, 2-
way) or HS-422 (4-wire, 2 for each way). is used it several readers are to be interconnected. ln this case the
polled JBUS protocol is implemented
fl
HOST
<————v————f—‘——
Figure 6-1 .- Nerwor'k topology using R542?
If only one reader is to be connected, either oi the three standards can be used. In this case either of the two
protocols, polled (see chapter 6.3) or interrupt (see chapter 6.5), are possible.
res-232
RS-422
RS—485
‘____> HOST
Figure 6-3 erm-ro—pomr topology
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COM MUNICATIONS Hyperiréquences
The table below summarizes the different combinations :
Type of connection
Protocol point-to-point multipoint
interrupt RS-232/422/485 —
Polling FlS-232/422485 RS-422 or FlS-485
6.2. Transmission characteristics
All protocols are character-oriented, The character formats are :
a 7 bits even parity/ 1 stop bit
- 7 bits odd parity /1 stop bit
. 8 bits no parity / 1 stop bit
Four baud-rates are possible :
1 200 bauds
4 800 bauds
9 600 bauds.
19 200 bauds
Choices are configured by user (see chapter 3.2.2).
NB : in practice, the JBUS protocol requires 8 bits / no parity. The other formats are used for special situations.
6.3. Reader in F'olled Mode
This is a master/slave protocol, Each exchange is initiated by the master and consists, except in one case
(broadcast message). an exchange of two frames - a command issued by the master and a reply from the
slave. All frames have the following structure :
|Slave no. function code data control
NB : A HYPER X reader is a JBUS"M slave,
The commands issued by the master are either addressed to one slave (identified by its number or address) or
to all slaves on the network (broadcast),
The four fields have the following meanings :
- Slave number (1 byte) : .
Specifies the destination, from 1 to 12. If the number is 0, it is a broadcast message. in this case there is no
reply,
- function code (1 byte) :
Command : Determines the type of action to be performed (read, write, bit, word),
Flepiy : Fiesult (success or error).
. data field (n bytes):
Contains the parameters associated with the function : command code, number of bytes, values.
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C 0 M MUNICATIONS Hyperfréquenm
- control field (2 bytes):
For error detection (CFlC 16) - See chapter 12.
The JBUS‘M protocol defines 12 functions (second field in frame). The following four of them are implemented
on the HYPEFtX readers:
0 function 3 : read n words
. function 5 : write one bit
- function 6 : write one word
- function 16 : write n words
The main difference between the reader’s reply and the host's command is the content of the data field.
If the message is received with errors (CFlC incorrect), the reader does not reply. if the message is received
correctly but the reader cannot process it, an error message is sent. This error message has its function code
field modified. (the msb is set to 1) and the data field contains one byte, an error code with the following
values :
Function code unknown
2 Command unknown
3 Data incorrect
4 S stem non read
8 Execution failure
Example :
PC -—> reader 01 03 00 39 00 01 54 07 (incorrect command)
reader —> PC 01 83 02 CO F1
The maximum time allowable between the reception of two characters is a protocol parameter which allows a
slave to resynchronise to a frame—start. if transmission is interrupted. If this time is exceeded, the slave rejects
the frame currently being received. For the HYPERX reader, this time is equal to 20 ms except in the case of a
baud-rate of 1200 bauds for which it is 30 ms.
6.3.1. Write one bit
- Command
2 bytes 1 hne 1 byte 2 b es
Address reader 05 command code bit value 00 CFlC 16
- if bit = 0. bit value = OOH,
- if bit = 1, bit value = FFH
- Fleply
2b es 1b 3 1b 6 2b es
Address reader 05 commandcode bitvalue 00 CFtC16
The‘Fteply‘ frame is identical to the ‘Command' Frame.
If the address is OOH, all the readers process the command without sending a reply.
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COMMUNICATIONS Hypeméqusrmes
6.3.2. Write one word
- Command
2 b es 2 b es 2 b as
Address reader 53—— CRC 16
'A word consists a! (we bytes, msb first
- Reply
2 b es 2b es 2b es
Address reader 06 command code value' CRC 16
The'RepIy' frame is identical to the ‘Command’ Frame.
if the address is OOH,‘ all the readers process the command without sending a reply.
6.3.3. Write n words
- Command
2 bytes 2 bytes 1 byte n bytes 2 bytes
Address reader toH commandcode nbrofwords nbrofcharactersl values' ICRC1G
' wards to be written, in order
- Reply
2 bytes 2 bytes 2 bytes
Address reader 1OH command code nbr of words CRC 16
If the address is OOH, all the readers process the command without sending a reply.
6.3.4 Read n words
- Command
2 bytes 2 bytes
Address reader 03 command code | nbr ofwords | CHC1S |
- Reply
1 byte n bytes
Address reader 03 nbrcharactersread1 values' CRC16
’ bytes read, in order
1' number of characters read = 2 X number of words in Command (always even)
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6.4. Reader commands
The following commands can be sent to the reader by the host :
N" Commands function command command reply
code code Erameter parameter
1 Get reader status 3 0040 nb words = 1 1 word status I
2 Get modules status 3 0041 nb words = 1 1 word status_m
3 Get ta 3 0042 nb words = n n words
4; Turn reader ON / OFF 5 0043 1 word emis 1 word emls
5 Flela control 5 0044 1 bit ( 0 =enable) 1 bit ( 0 eenable)
G Reset reader 5__[ 0045 1 bit ( 0 =reset) 1 bitJ0_=reset l
7 Anti-reread time 6 0046 1 word time 1 word time
8 Antenna LED control 6 0047 1 word led 1 word led
9 Fletransmit previous t_ag 3 0048 nb words = n n words
10 Get init errors 3 004F nb words = 1 1 word stalusfie
11" Get EPROM version 3 0049 nb words =1 1 word version (3
12' Get config 3 004A nb words =1 1 word config C)
131' Select channel 6 0050 1 word channel 1 word channel
Table 5-1 : Header commands.
l') Commands 11 and 12 are avallab/e as of EPFlOM version 400
(f) Command 13 is only available lo! the compact/eader
(i) CommandA rs onlyava/lable for the modular reader
in order to read a tag (in polled mode)‘ the host must first issue the command get reader status, The status
word informs the host it a tag has been read, and if so, the length of the tag—code in bytes (see 6.4.3 below). In
the latter case. the host then issues a second command get tag, indicating the number of words to be read.
NB : ln interrupt mode. the command get tag is not used, since all tag-codes are sent immediately“
The words status_|, status_m, statuswe. led, emls, time, version, channel and contig are 16 bit words
arranged as two bytes, msb first, Isb last,
641. Get reader status
This is a command of type read n words, code = 0040H. lithe command parameter nb words is not equal to
1, the reader replies with the JBUS error 3 (Data incorrect)
The reader returns one word statusJ (two bytes, MSby‘te first).
statusJ
D15 D8 D7 D0
EA 0 N5 N4 N3 N2|N1IN01UCIAM1DPLMS DM]E2| E1 RE
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COM MU NlCATIONS Hyperlréquances
bit name modular reader comgact reader
D15 BA 0 = 1 tag has been read,1 = two or more tags_have been read
D13-D8 N5 .. NO number of characters in tag 1 to 34), binarycoded in 6 bits
D7 UC {User con_tig, one or more parameters have been changed via a JBUS command active 1
DE AM Fault in Power supply module
D5 DP Tag memory overflow
D4 MS Fault with CPU
D3 DM Fault in one of the external modules
D2 E2 Radio reception enabled lor Antenna 2 1
D1 E1 Radio reception enabled for Antenna 1
D0 RE Relay activated
~ NB : When not specified,jhe bits are active low.
The length specified by the bits N5 NO includes one byte for the tag's status, three tor the distributor code
and the rest for the user-code (see chapter 6.4.3). This number may be even or odd. However, when using the
command read n words in order to read a tag-code, an even number of words must be specified and the reply
always contains an even number of bytes, the last of which may not be significant,
If either of the bits AM or DM are active, the host should issue the command read modules status (chapter
6.4.2) in order to determine the cause. It the bit MS is active, the host should issue the command read init
errors (chapter 6410).
Example :
PC —> reader 01 03 00 40 (10 01 85 DE
reader —> PC 01 03 02 00 7D 78 65
6.4.2. Get modules status
This is a command of type read n words, code = 0041H. It the command parameter nb words is not equal to
1. the reader replies with the JBUS error 3 (Data incorrect).
The reader returns one word status,m (two bytes, MSbyte first),
status_m
bit name modular reader compactreader
D15 DCH Battery-charger fault 1
D14 DAG Mains fault 1
D13 DDC Battery backup tault 1
012 DTE External DC input voltage—fault 1
D11 PSHFZ Microwave source module Huesent 1
D10 PSHF1 Microwave source module HF1 present 0
DE PCMFi2 Module SAMZflesent 1
DE PCMFH Module SAM1 present 0
D7 unused 1 1
D6 unused 1 1
D5 ERV2 Phaselock error source HF 2 1
D4 ERV1 Phase-lock error source HF t 1
D3 ERSZ Fault in module HF 2 1
Dz ERS1 Fault in module HF 1 1
D1 PEM2 Microwave power present on SAM2 1
DO PEM1 Microwave power present on SAM1
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C 0 M MUN ICATIONS Hyperfréquences
- NB : All bits are active low.
Example:
PC—>reader 01 03 00 41 00 01 D4 1E
reader—> PC 01 03 02 FA FE 7B 64
6.43. Get tag
This is a command of type read n words, code = 0042H. If the number of Words to be read (see 6.4.1) is
different from the number of words available (see command get reader status) , the reader replies with the
JBUS error 8 (execution failure) This error is also produced if no tags are present,
The data field structure of the ‘reply' frame is as follows :
1 byte 3 Mes 1 to 30 bytes
statusftag | distributor_code | useLcode
The length of this field can vary from a minimum of 5 to a maximum of 34. The distributor code may not be
present if distributor-code filtering is enabled,
Only two bits of status_tag are used :
D0 : tag battery (0 = OK, 1 = low)
Di : Antenna number ( 0 = antenna 1 /SAM1, 1 = antenna 2 / SAM2 ) - for modular reader only
D4. D5 : 1
D6,D7 : 0
For modular readers :
. Antenna 1 is connected to the receiver module SAMt (immediately to left of SP! in rack)
- Antenna 2 is connected to the receiver module SAM2 (leftmost SAM in a double rack).
The user-code can vary in length from 1 to 30 characters. It consists of any ASCII characters whose ASCll
codes lie between 20H and 5FH.
Example:
PC —> reader 01 03 00 42 00 04 E4 1D
reader —> PC 01 03 08 30 31 32 33 39 39 39 39 BS CS
6.4.4. Turning reader ON / OFF
This command is onlv available for M modular reader.
This command turns the microwave emission on or off, This is a command of type write one word, code =
0048H. One word (two bytes) must be sent‘ the most significant byte first.
emis
D15 D8 D7 D0
[NAixlx X Xix|x|x|x x x x x x xIVEl
NA: N°. antenna ( 0 = antenna 1, 1 = antenna 2)
VE : Enable emission ( 0 = enable, 1 =disable)
If this command is successfully executed by the reader, then the UC bit in the status word status_l is set to 1.
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Example:
PC——> reader 01 06 00 43 00 01 89 DE
reader—>PC 01 06 00 43 00 01 59 DE
64.5. Flelay control
This is a command of type write one bit, code = 0044H. It the parameter byte contains 0 the relay is
energised, it it contains FFH, the relay is de-energised.
If this command is successfully executed by the reader, then the UC bit in the status word status_l is set to 1.
Example:
PC—> reader 01- 05 00 44 00 00 8D DF (energiserelay)
reader—>PC 01 05 00 44 00 00 8D DF
6.4.6. Reset reader
This is a command of type write one bit, code = 0045H. It the parameter byte contains 0, an internal processor
reset is generated. Any other value produces the JBUS error 3 (data incorrect).
This command resets all user configurable parameters to their default values and resets the UC bit in the status
word status_l to 0 :
Parameter Default value
Antenna light green, slow blink
Anti reread time 1 second
Relay de-energised
Microwave emission ON'
Example :
PC —> reader 01 05 00 45 00 00 DC 1F (reset)
reader —> PC 01 05 00 45 00 00 DC 1 F
6.4.7. Tag Persistence
This is a command of type write one word, code = 0046H, One word (two bytes) must be sent, the most
significant byte first.
This time is expressed as a multiple of 50ms and binary-coded using 11 bits, giving a range from 50ms to 100
seconds.
time
D15 D8 D7
D0
Lx x x x x]T1O T9T8'I7T6T5T4T3T2-
If a value of 0 is programmed, then the reader will send the tag-code at each detection. This is incompatible
with several reader configurations and must be used with caution.
If this command is successfully executed by the reader, then the UC bit in the status word status_l is set to 1.
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COM MUN ICATIONS Hypertre'quances
Example:
PC—> reader 01 06 no 46 00 28 ea 01 (time=2s)
reader—> PC 01 06 00 46 00 25 68 01
6.4.8, Antenna LED control
This is a command of type write one word, code = 0047H. One word (two bytes) must be sent, the most
significant byte first.
led
D15 D8 D7 D0
|NA FiV|CF AE T3 T2 T1|T0i xlxlxl xi xix x x
NA : N" antenna ( 0 = antenna 1, 1 = antenna 2) ( =0 for compact reader)
HV: 0=LED red,1 =LED green
CF : 0 = blink, t = fixed
AE 0 = an, 1 = off
T3 .. T0 : Blink period (on or oft-time) as multiple of same binary-coded using 4 bits. Thus :
0001 : 50ms / 50 ms
0010 : 100ms/ 100 ms
0011 : 150ms/150 ms
1111 : 750ms/750 ms
If this command is successfully executed by the reader, then the UC bit in the status word status_l is set to 1.
Example:
PC—> reader 01 06 00 47 05 00_ 3A BF (led anttblinksredZSO/Zsoms)
reader—> PC 01 06 00 47 05 00 3A BF
6.4.9. Retransmit previous tag
This is a command of type read n words, code = 0048H. It the number of words to be read (chapter 6.4.1) is
different from the number of words available, the reader replies with the JBUS error 8 (execution failure). This
error is also produced it no tags are present.
This command makes the reader retransmit the previous tag code, providing no other transmission has
occurred since. It is used in polling mode it the reader’s reply contains errors and the host wishes a
retransmission, In such a case, repeating the command read tag is of no use, this command must be used.
The number or words to be read must be the same as that used in the previous read tag command.
Example :
PC —> reader 01 03 00 42 00 03 A5 DF (read 3 words)
reader —> PC 01 03 06 01 02 03 04 0516 QB BS (ORG incorrect)
PC —> reader 01 03 00 48 00 03 85 DD (retransmit 3 words)
reader —> PC 01 03 06 01 02 03 O4 05 06 SB 53 (CFtC OK)
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6.4.10. Get lnit Errors
This is a command of type read n words, code = 004FH. ll the command parameter nb words is not equal to
1, the reader replies with the JBUS error 3 (Data incorrect).
The reader returns one word status_e (two bytes, MSbyte first).
After a manual reset, the reader performs an internal test of its major hardware elements. it an error is
detected, the MS bit in the reader status word is set (see 6,4.1) and the reader resets itself after 4 seconds and
continues to do so until the fault disappears. This command, if sent after the end of the test (the buzzer sounds
while the test is in progress), will determine the nature of the fault. One word statusie is to be read:
Only the 5 bits D0 to D4 are used :
status_e
D15 D8 D7 D0
x x x x xix x xlxlxlxlsoc sce SCAIRAM ROM
ROM : EPROM checksum is incorrect
RAM : RAM failure
SCA :SCC channel A failure
SOB : SOC channel B failure
SCC : 800 bus access failure
The bits are active at 1.
Example :
PC —-> reader 01 03 00 4F 00 01 , 55 DD
reader —> PC 01 03 02 00 00 BS 44 (no errors)
6.4.11. Get EPHOM version
This is a command of type read n words, code = 0049H, If the command parameter nb words is not equal to
1, the reader replies with the JBUS error 3 (Data incorrect).
The reader returns one word version (two bytes, MSbyte first).
version
identifier major index minor index miter indevt
|Dtslo14|ma|ota on me D9 DB D7 oslos D4 133102 D1 DD
For the modular reader, the identifier has a fixed value equal to 0. For the compact reader, this value is equal
to 5.
Thus, version = 0401H indicates a modular reader with EPFtOM version 4.01.
Version = 5403H indicates a compact reader with EPROM version 4.03.
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6.4.12. Get Contig
This is a command of type read 11 words, code = 004AH. it the command parameter nb words is not equal to
1, the reader replies with the JBUS errors (Data incorrect).
The reader returns two bytes corresponding to the states of the two sets of switches. The first byte corresponds
to the Address switches, the second to the Mode switches. Zeros correspond to switches in the ON position
(see chapter 3 for description of switch positions).
6.4.13. Set channel number
his command is only available on compact readers.
This is a command of type write one word, code = DOSOH. One word (two bytes) must be sent, the most
significant byte first.
This command lets the user select one of 29 operating frequencies. For closely spaced readers using the same
frequency. mutual interference can significantly degrade performance. These readers should use different
frequencies.
channel
D15 D8D7 D0
0 o o ololo o 0 Hole c4ic3czctc0i
Bits C4..C0 code the channel number. Channel 0 is not used. If this value, or a value greater than 29 is
programmed, the reader replies with the JBUS error 3 (Data incorrect).
Channel 04 03 C2 01 i on
0 not used
1 | o 0 o o 1
2 0 o o 1
29 1 1 1 o 1
The correspondence between channel number and microwave frequency is given in chapter 13.
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6.5. Reader in lnterrupt Mode
ln this mode. as soon as a reader has a message to send to the host (is. a tag that has been detected), it
sends it, rather than waiting for an invitation, as is the case in the polled mode. The host replies with an ACK or
a NAK, The message sent has the following structure :
1 bfle n bytes
I STX I 04 nbcharactersl values 08016 i
This structure is the same as that at a ‘reply’ frame to the command read n words. The first field, the reader
number, is fixed at 2 and the second field. the code function, is fixed at 4.
Example :
- 1 1 bytes
02 (ml OB 3041424333343536373839l CFlC16
Here, the badge status = ‘0‘, the code read is ‘ABCQ456789'
The data field contains 11 bytes.
See chapter 6.4.3 for details of the structure of the data field.
The same message is retransmitted up to three times in case an ACK is not received. If a NAK is received the
message is sent again immediately. it no reply is received the message is sent after a 100ms timeout. After
three failed attempts, transmission for that message is abandoned.
This protocol is enabled using reader configuration (See chapter 3.2.1).
NB : .
In this mode of operation, the host can send all of the normal commands using the JBUS protocol (as defined
in chapter 6.4 above), except forthe one command read tag which would make no sense, The reader sends a
reply iust as it it were in polled made. However, the reader cannot send a reply straight away it it has just
detected a tag and has started to send this message, and vice versa. The host must decide it and when it can
safely interrogate the reader.
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7. EXTERNAL CONNECTIONS
7,1. 5-pin Connector - link to Host
pin Name [IO
01 01 I/O
02 O2 I/O
03 03 1/0
04 04 l
05 GND
Pins 01 lo 04 are associated with differenl signals, depending on lhe type of link used
(Board configuration': see chapter 3.8 ).
Name RS»232 RS—422 RS-485 ISOZ WIEGANDJ
01 TX TX+ + V STROBE DATA “1"
02 — TX- - V MDATA DATA “0"
03 7 FlX+ —- PRE578ADGE —
04 FlX RX- —— — —
05 GND GND GND GND GND
Signals on front panel 5-pin connector
Connector reference :
-» Brand : | PHOENIX WAGO l
5 in MSTB 2,5/5-ST-5,08 231-305/026-000
7.2. 3-pin Connector - relayed circuit
pin Name l/O
1 Make 0
2 Common l
3 Break 0
Signals on front panel 3—pin connector
This connection allows a signal to he switched using the on(space)  
where status badge : O = antenna 1, tag battery good
1 = antenna 1,tag battery low
2 = antenna 2‘ tag battery good
3 = antenna 2‘ tag battery low
distributor code i nnn where n is a digit (0 a 9)
user code : from 1 to 30 characters, see chapter 6.4.34
message antenna battery distr. code user code
0 001ABCDEF-1OO 1 good 001 ABCDEF—1OO
2 XYZHYPEFI X.007 I 2 good XYZ HYPER X.007
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12. APPENDIX E : ALGORITHM FOR CALCULATING THE CRC1G
It is a 16 bit fielcl The calculation is performed on all bytes preceding the field.
Hex FFFF --> CRC 16
CRC 166 BYTE ~—> CRC 16
CRC 16 G poly --> CRC 16
4—
n=n+l
110
n> 7 ye~
e = exclusive or
n = number of bits
POLY = polynorm'al for CRC 16 = z 12 213+ 2 °
For the 164m CRC 16, the 151) is transmitted first
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13. APPENDIX F: CHANNEL FREQUENCIES FOR COMPACT READER
Channel N“ Fre- uenc MHz
2448.00
2448.50
2448.75
2449.00
2449.25
2449.50
2449.75
9 2450.00
10 2450.25
11 2450.50
2450.75
13 2451.00
14 . 2451.25
15 2451.50
16 2451.75
17 2452.00
2452.25
2452.50
2452.75
21 2453 00
2453.25
2453.50
24 2445.50
25 2446.75
26 2447.00
27 2447.25
2447.50
2447.75
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