Futaba FDQ02T2 Wireless Modem with Serial Interface User Manual Your FRH set should contain the following

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WIRELESS DATA COMMUNICATION MODEM
FDQ02T
Wireless Modem with Serial Interface
Instruction Manual
Futaba Corporation
Industrial Radio Control
I Notice
I.I FCC Notice
This device complies with part 15 of the FCC rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct
the interference at his own expense.
Any unauthorized changes or modifications to this device not expressly approved by Futaba
Corporation could void the user’s authority to operate the device and possibly result in
damage to the equipment and/or cause serious or fatal injuries to the operator or nearby
personnel.
This device is intended to be installed and used in accordance with the instructions
contained in this manual. Failure to comply with these instructions could void the user’s
authority to operate the device and possibly result in damage to the equipment and/or cause
serious or fatal injuries to the operator or nearby personnel.
I.II IC Notice
This device complies with Industry Canada license-exempt RSS standard(s). Operation is
subject to the following two conditions: (1) this device may not cause interference, and (2)
this device must accept any interference, including interference that may cause undesired
operation of the device.
This equipment complies with IC radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance
20cm between the radiator and your body.
(French)
Cet appareil radio est conforme au CNR-210 d’Industrie Canada. L’utilisation de ce
dispositif est autorisée seulement aux deux conditions suivantes : (1) il ne doit pas produire
de brouillage, et (2) l’utilisateur du dispositif doit être prêt à accepter tout brouillage
radioélectrique reçu, même si ce brouillage est susceptible de compromettre le
fonctionnement du dispositif.
Cet équipement est conforme aux limites d’exposition aux rayonnements IC établies pour
un environnement non contrôlé. Cet équipement doit être installé et utilisé avec un
minimum de 20 cm de distance entre la source de rayonnement et votre corps.
ii
II Important Safety Information
The list of dangers, warnings and cautions in this section contain important information that
will help ensure safe operation of the system. Please read carefully and understand all of
these items. All installers, operators and maintenance personnel should read and understand
this information before installation, use, or maintenance of the FDQ02T system.
The FDQ02T system by itself is not inherently dangerous. HOWEVER, WHEN THE
FDQ02T IS CONNECTED TO OTHER EQUIPMENT FOR THE PURPOSE OF
CONTROL, SAFETY AND ALL POSSIBLE ASSOCIATED DANGERS MUST
ALWAYS BE GIVEN THE UTMOST CONSIDERATION DURING SYSTEM
INTEGRATION, DESIGN, INSTALLATION, AND USE.
The FDQ02T system may be used in virtually unlimited applications. Many of these
associated systems can, by themselves, pose a mechanical, electrical or other hazard to
operators and other persons or equipment. To address all possible applications and
associated safety hazards in this manual would be impossible. The warnings below and
throughout this manual give information that will allow safe installation and use the modem
system applications. If you have questions regarding the safety of your specific application,
please contact the appropriate people for help. Your Futaba sales representative,
representatives of the equipment being controlled, and the technical support staff at local
branch of Futaba Corporation are among those who can provide assistance with your safety
concerns.
The following warnings are included in the lists that follow but warrant repetition
here:
In installations where the FDQ02T system is used to control motion or operation of
potentially dangerous equipment, it is imperative for safety that all operators and installers
be thoroughly trained in the normal function of that equipment before attempting to control
it remotely with the FDQ02T system.
To help ensure safe operation of the equipment, the FDQ02T system must be connected so
that it will operate in a fail-safe way. In other words, the equipment being controlled should
stop or return to its safest state in the absence of a control signal or total loss of RF
transmission from the FDQ02T system. Our system uses one of the most reliable methods
available to transmit data using radio signals. Many factors can affect a radio signal that
may block it or interfere enough to disrupt regular transmission. Because of this, equipment
motion or dangerous electrical current, for example, that continues during a loss-of-signal
condition could be very dangerous.
iii
Four symbols are used in the margin of the following section and throughout the manual to
indicate the level of hazard or information listed.
The symbols are defined as follows:
Indicates a hazard that will cause severe personal injury, death, or
substantial property damage if the warning is ignored.
Indicates a hazard that can cause severe personal injury, death, or
substantial property damage if the warning is ignored.
Indicates a hazard that will or can cause minor personal injury, or
property damage if the warning is ignored.
Indicates installation, operation, or maintenance information that is
important but not hazard-related.
Please read the following safety information carefully. Some of these notices are duplicated
throughout the manual, in areas of associated content, for your benefit.
II.I General Safety Hazards and Notes
Improper installation and/or operation of the FDQ02T system can
cause serious or fatal injuries to the operator or nearby persons and
cause damage to the FDQ02T system, and any equipment it is used
to control. Please read and understand this manual completely and
the manual of all equipment being controlled before attempting to
operate or install this system.
Always keep this manual at a location readily accessible to anyone
operating the system and related equipment. Ensure that all operators
have read and understood this manual, especially all safety and
operation procedures contained in it. Please refer to the section in
this manual titled How to Obtain Help for the contact that can
supply additional manuals or answers to questions not covered in this
manual. If this product is passed on to a different user, be sure that
this manual accompanies the product.
Be certain that the installer of this equipment reads and understands
the instruction manual of the equipment that is being connecting to
before attempting this installation.
The FDQ02T should NOT be used in a manner in which failure of
the product or loss of the radio signal could cause damage to the
iv
equipment being controlled, or to anything in the area in which such
equipment is located. All integrated control systems should be
designed for “fail-safe” operation so that a temporary or permanent
loss of signal will not endanger any person, critical process, or
equipment (refer to the beginning of the safety section for further
explanation). The system design should ensure that the equipment
being controlled will default to its safest state in the event of signal
loss.
The FDQ02T contains no user serviceable parts. If the unit requires
service, contact your sales representative or local branch of Futaba
Corporation per instructions the section titled How To Obtain
Help. Do not disassemble or attempt to repair the FDQ02T yourself.
Doing so could void your warranty and may void the user’s authority
to operate the device.
Contact Futaba before using the FDQ02T in safety critical
applications such as medical equipment, aircraft, hazardous materials
handling, etc.
II.II Installation Safety Hazards and Notes
When mounting the FDQ02T, use M2.6 (ISO) screws.
Use only the proper regulated DC voltage supplied to the FDQ02T.
Use of any other voltage may permanently damage the modem
and/or cause the modem to malfunction and create a shock or fire
hazard.
Be certain that all AC power outlets used the power adapters have
been properly installed, grounded, and fused. An electrical shock
hazard may exist if this unit is powered by a faulty power outlet or
source. If such a situation is discovered, immediately discontinue use
until the power source and outlet have been properly installed,
grounded, and fused by an electrician or other authorized person.
Be sure to wire the power and serial connections correctly. Incorrect
wiring can damage the system, cause it to malfunction and/or create
a shock and fire hazard.
Ensure that the FDQ02T power and the power to the equipment to be
controlled is turned off before connecting or disconnecting the cable
between them. This will help prevent accidental damage to the
system and unexpected operation and/or injury.
Be sure the FDQ02T power, the power to the equipment that is being
connecting to it, and the DC power source are all turned off before
wiring and connecting the power cable.
Be sure that the supplied power is within the specified range (3.5 to
7.0 VDC). Voltages outside the specified range may damage the
FDQ02T.
Be sure that the power source has sufficient current capacity.
Insufficient current may cause the unit to malfunction.
Securely attach the antenna cable, and serial communication
connector to the FDQ02T and equipment/power source to which it is
connected. Failure to do so could cause an unexpected system failure.
II.III Antenna Installation Hazards and Notes
This radio transmitter (identify the device by certification number or
model number if Category II) has been approved by Industry Canada
to operate with the antenna types listed below with the maximum
permissible gain indicated. Antenna types not included in this list,
having a gain greater than the maximum gain indicated for that type,
are strictly prohibited for use with this device.
(1)ANTB18-096A0
(2)TK-1619A
(3)TRAB24003
Be sure to keep all systems and antennas clear of power lines.
Permanent equipment damage and severe shock injury or death can
occur if the system contacts power lines.
This device has been designed to operate with an antenna having a
maximum gain of 2.14 dB. Antenna having a higher gain is strictly
prohibited for use with this device. The required antenna impedances
50 ohms.
Contact Futaba before connecting any antenna not provided by
Futaba specifically for the FDQ02T. Attaching any non-authorized
antenna may be in violation of FCC regulations.
To reduce potential radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent isotropically
radiated power (e.i.r.p.) is not more than that permitted for successful
communication.
vi
Before each use, verify that the antenna (and antenna cable, if used)
is securely attached and in good condition. A loose antenna or cable
may severely reduce the operating range of the system.
The FDQ02T operates at frequencies in the 2.4 GHz band. These
frequencies are more directional than lower frequencies and are
easily reflected. If there are metal structures nearby, the effective
range may be shortened or the directional properties may be further
narrowed. To help avoid this, mount the antenna as far away as
possible from surrounding metallic structures.
Multipath problems occur easily at frequencies in the 2.4 GHz band.
When multipath problems are present, moving the antenna as little as
10 cm may result in improved communication or, conversely,
worsened or complete loss of communication. Futaba recommends
that the mounting position of the antenna be determined after testing
and verifying optimal communication conditions.
When installing multiple FDQ02T systems that will use different
frequency pattern number in the same area, these antennas must be
mounted at least 6 feet (2 meters) apart. Failure to do so may
severely reduce the modem operating range.
Please contact Futaba for information about antenna separation when
using the FDQ02T and other wireless products in the same area.
vii
II.IV Environmental Safety Hazards and Notes
If the FDQ02T has been stored at a temperature beyond the specified
operating temperature range for the system, it may not function
properly. Allow it to return to normal temperatures before use. Refer
to APPENDIX A – TECHNICAL SPECIFICATIONS for the actual
operating temperature range.
The FDQ02T is a precision electronic device with a rugged design
that is intended for industrial applications. However, do not install it
where it will encounter excessive vibrations. In some cases, isolation
mounts may be used to isolate the modem from the equipment’s
vibration. Excessive vibration can permanently damage the modem
and/or cause it to malfunction.
Do not operate the FDQ02T in environments where it will be
subjected to excessive moisture (such as rain or water spray), dust,
oil, or other foreign matter (such as metal particles). Doing so may
permanently damage the modem and/or cause it to malfunction. If it
does become wet or contaminated, correct the situation, verify proper
operation and have any problems corrected before using it to control
other equipment. If necessary, the modem can be mounted inside a
protective or waterproof enclosure. If the enclosure is metallic, the
antenna must be mounted externally or the effective operating range
will be severely limited.
The FDQ02T is designed for indoor use. When using it outdoors, the
modem should be mounted in a waterproof enclosure and the
ambient temperature range should be checked to insure that it is
within the modem’s specifications. Always use the modem within its
specified environmental ranges.
II.V Other Notice
Italicized gothic word used in this manual shows functional and
technical term especially important for the FDQ02T.
The device must contain the following permanent labeling on the
exterior of the device as follows:
Contains: FCC ID:AZP-FDQ02T2
Contains: ID : 2914D-FDQ02T2
viii
Operational Safety Hazards and Notes
Before each use of the FDQ02T, ensure that the area where the
equipment will be operated is clear of people or obstacles that may
affect its safe operation.
Before each use of the FDQ02T, verify that both the equipment
being controlled and the modem are in proper operating condition.
When rewriting the FDQ02T’s memory registers, do not turn its
power off until it returns a “P0” response. If the power is interrupted
before a P0 response is returned, the memory contents may be lost or
corrupted and it operation will be unpredictable. If the memory
contents are lost or corrupted, they may be restored to original
default settings by reinitializing them. (See p.25 Memory REGISTER
INITIALIZATION for more details.)
Do not attempt to operate remotely controlled equipment outside the
communication range of the FDQ02T system. Doing so could cause
loss of control of the equipment.
Without implementing proper serial communication flow control
settings, the baud rate between the modem and its terminal
equipment (wire linked) can exceed the wireless link data rate and
cause the modem buffer to overflow. This can result in malfunction
of the systems being controlled and/or data corruption. Ensure that
the appropriate flow control settings are being used for your upper
layer application protocol.
Exposure to Radio Frequency Radiation
For FCC RF safety requirements a minimum of 20 cm separation
distance should be kept between the antenna and the user.
ix
III System Identification
For future reference, please take a moment to fill in the information below. This
information will help us respond as quickly as possible should your FDQ02T modem ever
need repair or replacement.
Model Name and Number:
FDQ02T
Serial Number:
Date of Purchase:
Distributor Name:
Distributor Address:
Distributor Phone Number:
IV Limited Warranty
FUTABA WARRANTS ONLY THAT THE INDUSTRIAL RADIO CONTROL SYSTEM
GOODS OR PRODUCTS FURNISHED HEREWITH SHALL BE FREE FROM
DEFECTS IN MATERIAL AND WORKMANSHIP UNDER NORMAL CONDITIONS
OF USE AND SERVICE FOR A PERIOD OF ONE (1) YEAR FROM THE DATE OF
SALE TO THE PURCHASER WHO IS THE FIRST BUYER OF THE GOODS FOR USE
OR CONSUMPTION AND NOT FOR RESALE OTHER THAN AS A COMPONENT
OF ANOTHER PRODUCT MANUFACTURED FOR SALE BY SUCH PURCHASER
(“CONSUMER”). FUTABA’S LIABILITY, WHETHER BASED ON BREACH OF
WARRANTY OR NEGLIGENCE, SHALL BE LIMITED, AT FUTABA’S ELECTION,
TO REPLACEMENT OR REPAIR OF ANY SUCH NONCONFORMING GOODS,
F.O.B. FUTABA’S U.S.A. PLANT, OR, AT FUTABA’S ELECTION, CREDIT FOR THE
NET PURCHASE PRICE OF SUCH GOODS. ALL CLAIMS HEREUNDER MUST BE
MADE IN WRITING DURING THE WARRANTY PERIOD, AND FUTABA SHALL
HAVE THE RIGHT PRIOR TO ANY RETURN OF GOODS TO INSPECT ANY
GOODS CLAIMED TO BE NONCONFORMING, AND IN ANY EVENT RESERVES
THE RIGHT TO REJECT CLAIMS NOT COVERED BY WARRANTY. THIS LIMITED
WARRANTY CONSTITUTES FUTABA’S SOLE WARRANTY. FUTABA MAKES
NO OTHER WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, AND
EXPRESSLY
DISCLAIMS
ANY
IMPLIED
WARRANTY
OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
FUTABA’S WARRANTY SHALL NOT APPLY IF, AMONG OTHER LIMITATIONS
CONTAINED HEREIN OR FURNISHED WITH THE PRODUCT, BUYER, OR
CONSUMER, OR ANY USER OF THE PRODUCT (A) ALTERS SUCH PRODUCT,
OR (B) REPLACES ANY PART OF SUCH PRODUCT WITH ANY PART OR PARTS
NOT FURNISHED BY FUTABA FOR THAT PURPOSE, OR IF, AMONG SUCH
OTHER LIMITATIONS, PRODUCT FAILS TO OPERATE PROPERLY OR IS
DAMAGED DUE TO ATTACHMENTS OR COMPONENTS THAT ARE NOT
FURNISHED BY FUTABA FOR USE WITH OR REPAIR OF THE PRODUCT UNLESS
SUCH USE IS AUTHORIZED IN WRITING IN ADVANCE BY FUTABA.
THIS LIMITED WARRANTY EXTENDS ONLY TO THE CONSUMER AND IS NOT
ASSIGNABLE OR TRANSFERABLE. This limited warranty shall not apply to fuses,
lamps, batteries, or other items that are expendable by nature, unless otherwise expressly
provided.
This limited warranty does not cover any defect or damage to any of the goods caused by or
attributable to force, accident, misuse, abuse, faulty installation, improper maintenance,
improper electrical current, failure to install or operate in accordance with Futaba’s written
instructions, repair or alteration by unauthorized persons, or leaking batteries. THE
GOODS ARE SENSITIVE ELECTRONIC DEVICES REQUIRING SPECIAL
HANDLING, AND THIS LIMITED WARRANTY DOES NOT APPLY TO
PRODUCTS NOT HANDLED IN ACCORDANCE WITH INSTRUCTIONS SET
FORTH IN THE MANUAL.
THIS LIMITED WARRANTY DOES NOT COVER INDUSTRIAL RADIO
CONTROL PRODUCTS PURCHASED OR USED OUTSIDE OF THE UNITED
STATES WITHOUT FUTABA’S PRIOR APPROVAL.
xi
V Returns
Futaba’s authorization must be obtained prior to return of any item for warranty or other
repair or replacement or credit and will reflect Futaba’s warranty service procedure.
Consumer’s warranty rights are governed by the terms of Futaba’s Limited Warranty, as
above described. Products returned for warranty repair or replacement or credit must be
carefully and securely packed for return, preferably in the original carton or equivalent. The
Consumer must also include in the carton a legible copy of the bill of sale or invoice which
shows the date of sale and the original Buyer’s and Consumer’s names, and also a letter
which gives the Consumer’s return address and contact telephone number, the model and
serial numbers of the product(s) returned, and a brief explanation of the problem or claimed
defect. Any returned products that are replaced by Futaba shall become the property of
Futaba. If after inspection Futaba determines the defect is not covered by its limited
warranty, Futaba will notify Consumer of its determination and will not undertake any
repairs or product replacement until Consumer agrees to pay for all necessary parts and
materials, labor (to be charged at Futaba’s standard repair rate then in effect), and other
expenses including all shipping charges and insurance. Futaba reserves the right to retain
possession of any product returned by Consumer because of defects not covered by
Futaba’s warranty until Futaba receives Consumer’s agreement as above noted or, if
Consumer wants the product returned without repair or replacement, Consumer reimburses
Futaba for all shipping and handling charges incurred by Futaba. Issuance of credit for
returned items shall be made at Futaba’s unfettered discretion. Consumer will not be
entitled to return defective goods for cash refunds. Consumer must inspect goods
immediately and no rejection or revocation of acceptance shall be permitted more than ten
(10) days after delivery to, or first use by, Consumer of the goods, whichever occurs first.
VI Patents – Copyrights – Trademarks – Proprietary
Rights
If this product was manufactured according to designs or processes specified by Consumer,
Consumer shall indemnify and save Futaba, its affiliates, officers, agents, and employees,
harmless from any expense, loss, attorneys’ fees, costs, damages, or liability which may be
incurred as a result of actual or alleged infringement of patent, copyright, or trademark
rights. Furnishing of these products does not convey a license, implied or otherwise, under
any patent, copyright, or trademark right in which Futaba has an interest, nor does it convey
rights to trade secrets or any other proprietary information of Futaba.
VII Limitation of Damages and Action
IN NO EVENT SHALL FUTABA BE LIABLE TO CONSUMER, OR ANY OTHER
PERSON FOR ANY INCIDENTAL, CONSEQUENTIAL, OR SPECIAL DAMAGES
RESULTING FROM THE USE OF OR INABILITY TO USE THIS PRODUCT,
WHETHER ARISING FROM BREACH OF WARRANTY OR NEGLIGENCE OF
FUTABA, OR OTHERWISE. Any action hereunder must be commenced within one (1)
year of accrual of cause of action or be barred and forever waived. No modification or
alteration of Futaba’s Limited Warranty or any other provision of this paragraph or the
above paragraphs shall result from Futaba’s acknowledgment of any purchase order,
shipment of goods, or other affirmative action by Futaba toward performance following
receipt of any purchase order, shipping order, or other form containing provisions, terms, or
conditions in addition to or in conflict or inconsistent with any such provisions.
xii
TABLE OF CONTENTS
1 INTRODUCTION ............................................................................................. 1
1.1
1.2
1.3
Special Features .................................................................................................. 2
How To Obtain Help ............................................................................................. 3
Physical Description............................................................................................. 4
2 SYSTEM INSTALLATION ............................................................................... 5
2.1
2.2
2.3
2.4
Communication Cable Connection ....................................................................... 6
Reset signal ......................................................................................................... 8
Initialization time .................................................................................................. 8
Other Installation Precautions .............................................................................. 9
3 SYSTEM OPERATION .................................................................................. 11
3.1
3.2
3.3
3.4
3.5
3.6
Packet transmission mode ................................................................................. 12
Header-less Stream mode ................................................................................. 14
Extended Reception mode ................................................................................. 15
Communication time .......................................................................................... 17
Repeater function .............................................................................................. 19
Frequency Channel............................................................................................ 20
4 FUNCTION CONTROL METHODS ............................................................... 21
4.1
4.2
4.3
4.4
4.5
Interface ............................................................................................................ 22
Serial Interface Setting ....................................................................................... 23
Terminal Software Setup for Memory Register Control ....................................... 24
Memory Register Setting.................................................................................... 24
Command Control .............................................................................................. 26
5 MEMORY REGISTER DESCRIPTION .......................................................... 27
5.1
Memory Register Description ............................................................................. 28
6 COMMAND SET DESCRIPTION................................................................... 39
6.1
Command Set Description ................................................................................. 40
7 APPENDIX .................................................................................................... 57
7.1
7.2
7.3
7.4
Conversion Circuit ............................................................................................. 58
Specification of the Connectors .......................................................................... 59
Specification ...................................................................................................... 60
Outline View ...................................................................................................... 62
xiii
SECTION
INTRODUCTION
1.1 Special Features
The following list highlights some of the special features of the FDQ02T. For more
complete system specifications please refer to p.60 SPECIFICATIONS.
 Approved under FCC Part 15.247 rules -- no special user license required
 Operating range greater than 3000 feet, line-of-sight -- configurable as a repeater for
extended range of application service area
 2.4 GHz Direct Sequence Spread Spectrum (DSSS) communication system provides
unsurpassed immunity to interference and RF noise
 Fast switching Time-Division-Duplex (TDD) provides virtual full-duplex
communication between terminal equipments at rates up to 115.2kbps
 User selectable frequency pattern number
 Supports 1:1, 1:n, and n:m wireless network topology
 Serial communication interface allows direct connection to a micro controller chip. By
converting its level by the external interface circuit, conformable to RS232C, RS422
and RS485
 Small size allows easy integration with many systems
 Supply voltage range is DC voltage in 3.5 to 7.0 V DC (modem) / 6.0 to 9.0 V DC
(Amp.)
1.2 How To Obtain Help
Please contact your local sales representative or local branch of Futaba Corporation at the
address shown below for help with the following:
 Application information regarding the FDQ02T or other Futaba products
 Technical assistance or training
 Answers to safety questions and issues
 Additional manuals or other documentation
 Repair or service
 Comments regarding the product or this manual
Japan
Futaba Corporation
Radio Control Equipment Group
1080 Yabutsuka, Chosei,
Chiba, 299-4395 JAPAN
Tel: +81 (475) 32-6173, Fax: +81(475) 32-6179
Internet: www.futaba.co.jp
Europe
PENDING
When requesting repairs, please provide as much detail as possible regarding the failure and
its cause or symptoms. Doing so will help our service department find the problem quickly,
resulting in a shorter repair time.
CAUTION
The FDQ02T contains no user serviceable parts. If the unit requires
service, contact your sales representative or local branch of Futaba
Corporation as per instructed in this section. Do not disassemble or
attempt to repair the modem yourself. Doing so could void your
warranty and may void the user’s authority to operate the device.
1.3 Physical Description
Please review the following section and take a moment to familiarize yourself with the
FDQ02T wireless modem.
Communication Connector A
Antenna
Communication Connector B
Mounting Hole
Figure 1–1: Upper View
(1)
Communication Connector A
Used to connect to the DTE(Data Terminal Equipment) with interface cable. Also
controlling functions such as hardware reset and RS232C/RS485 selecting pins are
available. Signal is CMOS level.
(2)
Communication Connector B
It is a power supply of power amplifier input.
The control signal is input from the Communication Connector A.
(3)
Antenna Connector
Used to connect to antennas for transmit and receive functions.
(4)
Mounting Hole
Used to install a modem from the front surface. It is easy to install a modem, however, only
three holes are available.
SECTION
SYSTEM INSTALLATION
2.1 Communication Cable Connection
Use the serial communication cable prepared by Futaba to connect the FDQ02T to the
external terminal equipment. For the connection of the modem, see P IN ASSIGNMENT.
The signal level of the FDQ02T is CMOS. If the interface of the equipment to be connected
is RS232C or RS485, the level conversion circuit is required.
Please connect connector A-12pin and B-2pin.
No.3
No.1
No.14
No.1
Communication Connector A
Communication Connector B
Figure 2-1: PIN ASSIGNMENT
Table 2-1 : PIN ASSIGNMENT ( Communication Connector A )
Pin
Name
I/O
Meaning
No.
STAND-BY
Input
Standby mode transition/return
１
RxD
Output Output received data
２
TxD
Input
Input transmitted data
３
Reserved
Input
Do not use.
４
GND
Signal ground
５
－
DSR
Output Initialization completed
６
RTS
Input
Flow control
７
CTS
Output Flow control
８
Reserved
Input
Do not use.
９
VCC
3.5V ~ 7.0V
１０
－
POWER-ON
Input
Power on/reset
１１
RX/TX
Output Set external amplifier to
１２
receiver or transmitter
/INIT
Input
Memory register initialization
１３
Reserved
Input
Do not use
１４
(1)
Terminal
treatment
C-MOS
C-MOS
47kΩ pull down
47kΩ pull down
－
C-MOS
47kΩ pull down
C-MOS
47kΩ pull down
－
47kΩ pull down
C-MOS
47kΩ pull up
47kΩ pull up
The terminals of the radio modem are based on the DCE (Data Communication
Equipment) mode. Accordingly, the transmission corresponds to the input, while the
reception corresponds to the output.
(2) Only supplying the power to the number 10-pin does not activate the MODEM. Raise
the number 11-pin to the Hi-level to turn on the modem. This operation works as a reset
function as well.
(3) The number 1-pin is used for controlling the standby mode.
Lo: Communication mode / Hi: Standby mode
Be sure to add a pull-down circuit externally. (Refer to the Standby mode)
(4) The level of the number 6-pin turns to Hi-level when the modem gets ready to accept
commands after the modem is turned on or reset. To use this function, add a pull-down
circuit externally. (Refer to the Standby mode)
(5) The number 12-pin is used to control the external amplifier’s transmission and
reception.
Lo: Transmission / Hi: Reception
(6) If the number 13-pin is at Lo-level when the modem is turned on or reset, the pin
initializes the memory register and makes the modem start working.
(7) Do not connect anything to the number 14-pin.
(8) As the input terminals accept 5V, users can use this interface for 5V-systems.
Table 2-2：Signal definition
Logic
0（ON）
1（OFF）
Voltage
Lo
Hi
Signal
Space
Mark
Table 2-3 : PIN ASSIGNMENT ( Communication Connector B )
Pin
Name
I/O
Meaning
No.
VCC
6.0V ~ 9.0V
１
－
RX/TX
Input
Set receiver or transmitter
２
GND
Signal ground
３
－
WARNING
CAUTION
Terminal
treatment
－
C-MOS
－
Ensure that the FDQ02T modem power and the power to the
equipment to be controlled is turned off before connecting or
disconnecting the cable between them. This will help prevent
accidental damage to the system and unexpected operation and/or
injury.
In addition to this manual, read the operation manual of a PC
(Personal Computer) and PLC (Programmable Logic Controller) to
be connected.
2.2 Reset signal
The reset signal at the number 11-pin (POWER-ON) is shown in the figure bellow. The
reset conducted by the reset signal is equivalent to rebooting the power.
1ms Min
Hi
Lo
Figure 2-2：Reset signal
2.3 Initialization time
(1)The initialization time, which is between the time to turn on the modem and the
time to accept the first command, is 150ms maximum.
(2)When using the RST command to carry out the software-reset, it takes 100ms to
reset the modem and accept the first command after entering the RST command.
Note: This is based on the premise that the modem accepts the RST command
while it is in the standby mode for reception.
(3)When using the INT command to initialize the memory register, it takes 150ms or
less to reset the modem and accept the first command after entering the INT
command.
Note: This is based on the premise that the modem accepts the INT command while
it is in the standby mode for reception.
(4)When using the /INIT pin to initialize the memory register, it takes 250ms or less to
accept the first command after turning on the modem.
The next figure shows the boot-up sequence to initialize the modem by the /INIT
pin.
VCC
0ms
Min
POWERON
Note
/INIT
Note: Min 100ms for initialization (1000ms is recommended. Never use the modem with
this level at Lo.)
Max 20ms for no initialization
Figure 2-3：Initialization sequence
2.4 Other Installation Precautions
2.4.1 Modem Installation Precautions
WARNING
WARNING
Securely attach the antenna cable, and serial communication
connector to the FDQ02T and equipment/power source to which it
is connected. Failure to not do so could cause an unexpected system
failure.
The FDQ02T is a precision electronic device. Its rugged design is
intended for industrial applications. However, do not install it where
it will encounter excessive vibrations. In some cases, isolation
mounts may be used to isolate the modem from the equipment
vibration. Excessive vibration could permanently damage the modem
and/or cause it to malfunction.
WARNING
If the FDQ02T has been stored at a temperature beyond the specified
operating temperature range for the system, it may not function
properly. Allow it to return to normal temperatures before use. Refer
to p.60 SPECIFICATION for the actual operating temperature range.
WARNING
Do not operate the FDQ02T in environments where it will be
subjected to excessive moisture (such as rain or water spray), dust,
oil or other foreign matter (such as metal particles). Doing so may
permanently damage the modem and/or cause it to malfunction. If it
does become wet or contaminated, correct the situation, verify proper
operation and have any problems corrected before using it to control
other equipment. If necessary, the modem can be mounted inside a
protective or waterproof enclosure. If the enclosure is metallic, the
antenna must be mounted externally or the effective operating range
will be severely limited.
WARNING
The FDQ02T is designed for indoor use. When using it outdoors, the
modem should be mounted in a waterproof enclosure and the
ambient temperature range should be checked to insure that it is
within the modem’s specifications. Always use the modem within its
specified environmental ranges.
2.4.2 Antenna Installation Precautions
WARNING
Before each use, verify that the antenna (and antenna cable, if used)
is securely attached and in good condition. A loose antenna or cable
may severely reduce the operating range of the system.
WARNING
Avoid mounting the antenna near large metallic objects or inside
metal enclosures. Such objects can severely reduce the operating
range of the system.
CAUTION
The FDQ02T operates at frequencies in the 2.4 GHz band. These
frequencies are much directional than lower frequencies and are
easily reflected. If there are metal structures nearby, the effective
range may be shortened or the directional properties may be further
narrowed. To help avoid this, mount the antenna as far away as
possible from surrounding metallic structures.
CAUTION
Multipath problems occur easily at 2.4 GHz frequencies. When
multipath problems are present, moving the antenna as little as 10 cm
may result in improved communication or, conversely, a further
diminished or total loss of communication. Futaba recommends that
the mounting position of the antenna be determined after testing and
verifying optimal communication conditions.
Please contact Futaba for information about antenna separation when
using the FDQ02T and other wireless products in the same area.
10
SECTION
11
SYSTEM OPERATION
3.1 Packet transmission mode
3.1.1 Abstract
In the Packet Transmission mode, the communication is carried out by the follows
procedure:
(1) Once the power of the modem is turned on, the modem becomes the State for
Reception.
(2) The transmission command “TXT” or “TBN” makes the MODEM to the State for
Transmission.
(3) One transmission command can send one packet. The maximum length of the user’s
message is 255 bytes for a packet.
(4) Receiving a packet, the destination modem returns an “ACK” to the sender modem.
Receiving the “ACK,” the sender modem ends the communication. The sender
modem returns its response, which depends on the cause of success or failure in the
communication. Meanwhile, the packet of a message that has failed to be transmitted
will be destroyed.
(5) Prior to sending messages consecutively, the modem checks the responses whether
the previous transmission has been successful or not.
(6) The modem returns to the State for Reception after finishing the transmission.
3.1.2 T Transmission command and reception header
The transmission commands used for the Packet Transmission mode are “TXT”, “TXR”,
“TBN” or “TBR.” Depending on the transmission commands, there are four different
formats that are used to output received data to external equipment. The external
equipment can find the data format by its reception deader.
The “TXR” and “TBR” commands via repeater are not utilized for the modem, but are
explained here for the future upgrade.
Table 3-1：Transmission command and reception header
Transmission
command
TXT
TXR
TBN
TBR
Reception
header
RXT
RXR
RBN
RBR
Function
Transmit text data
Transmit text data via repeater
Transmit binary data
Transmit binary data via repeater
The followings are the input format of transmission data from the external equipment to
the modem and the reception format from the modem to the external equipment.
(1)
Text data transmission
Transmission : @TXT[destination address] [message] [CRLF]
Example
: @TXT012HELLO [CRLF]
Reception
: RXT[sender address] [message] [CRLF]
12
Example
(2)
Text data transmission via repeater
Transmission : @TXT[repeater address] [destination address][message][CRLF]
Example
: @TXT003012HELLO [CRLF]
Reception
Example
(3)
: RXT[repeater address] [sender address][message][CRLF]
: RXT003015HELLO [CRLF]
Binary data transmission
Transmission : @TBN[destination address] [the number of bytes of the message]
[message] [CRLF]
Example
: @TBN012005HELLO [CRLF]
Reception
Example
(4)
: RXT0015HELLO [CRLF]
: RBN[sender address] [the number of bytes of the message] [message]
[CRLF]
: RBN015005HELLO [CRLF]
Binary data transmission via repeater
Transmission : @TBN[repeater address] [destination address]
[the number of bytes of the message] [message] [CRLF]
Example
: @TBN003012005HELLO [CRLF]
Reception
Example
: RBN[repeater address] [destination address]
[the number of bytes of the message] [message] [CRLF]
: RBN003015005HELLO [CRLF]
3.1.3 Broadcast communication
If the destination address is set to 255, the sender modem broadcasts to all the other
modems, which is called broadcast communication. In the broadcast communication, the
sender modem can transmit its data to multiple modems simultaneously. However, the
modem cannot determine whether all the other modems have received the data without a
failure because ACK is not returned from any of them in the broadcast communication.
In the broadcast communication, the sender modem repeats retransmission inevitably up to
the predetermined count and then returns an “end” response to its external equipment.
Meanwhile, if the receiver modems have received data properly, the modems output the
data to their external equipment. However, the modems do not output the retransmitted data
to their external equipment if the data has been once accepted properly.
13
3.2
Header-less Stream mode
3.2.1 Abstract
The Header-less Stream mode, a special Packet Transmission mode, does not require the
procedures for transmission commands that are necessary in the Packet Transmission mode,
but requires only inputting transmission data directly.
(1) The destination address can be set in memory register or by command.
(2) The transmission triggers such as terminator, timeout and a specified number of bytes
can be set in the memory register.
(3) The maximum length of the message in a packet is 255 bytes , and the number is
including terminator.
(4) Receiving a packet, the destination modem returns an ”ACK” to sender modem.
Receiving the “ACK,” the sender modem ends the communication.
(5) The sender modem does not return any response regardless of success or failure in the
communication. It is necessary for application software to checking the establishment
of the communication.
(6) Since the modem has a transmission buffer inside, you can enter transmission data
consecutively without waiting the end of transmission like in the Packet Transmission
mode.
(7) This mode is compatible and can communicate with the Packet Transmission mode.
3.2.2 Format
The Header-less Stream mode does not out put the responses such as P1, P0 and N1 in
response to transmission commands. In addition, it doesn’t output the reception header or
CRLF code, which is used in the Packet Transmission mode, but outputs instead special
characters (terminators), which are used as packet separators, as part of data.
The followings are the transmission and reception formats in the Header-less Stream mode.
１．Packet
Transmission mode（Reference）
Transmission
: @TXT002HELLO [CRLF]
Reception
: RXT001HELLO [CRLF]
２．Header-less
Stream mode (When terminator is CRLF.)
Transmission
: HELLO [CRLF]
Reception
: HELLO [CRLF]
３．Transmission
in the Header-less Stream mode, Reception in the Packet Transmission
mode（text mode）
Transmission
: HELLO [CRLF]
Reception
: RXT001HELLO [CRLF] [CRLF]
４．Transmission
in the Header-less Stream mode, Reception in the Packet Transmission
mode（binary mode）
Transmission
: HELLO [CRLF]
Reception
: RBN001007HELLO [CRLF] [CRLF]
５．Transmission in the Packet Transmission mode, Reception in the Header-less Stream
mode
Transmission
: @TXT002HELLO [CRLF]
Reception
: HELLO
14
3.2.3 Transmission trigger
In the Header-less Stream mode, transmission starts under the following conditions.
(1) Terminator mode
A designated terminator or data of 255 bytes or larger is entered.
(2) Timeout mode
No data has been entered for more than the specified time or data of 255 or larger is
entered.
3.3 Extended Reception mode
Extended Reception is a function to avoid transmission errors and response delays due to
repetition of retransmissions when multiple modems transmit messages at the same time
accidentally like contention mode in the Packet Transmission or Header-less Stream mode.
3.3.1 Operations in the Extended Reception mode
In the Extended Reception mode, once a modem has started receiving data during
retransmission (during ACK-wait, Random-wait and Carrier-sense), the modem will fully
complete the data reception, return its “ACK” and then resume the retransmission.
The following figure shows steps of operations in Extended Reception while the two
modems transmit messages at the same time.
DTE1
Modem1
Modem2
TXT
command
TXT command
Simultaneous
transmission
P1
Stop random-wait and
start Extended Reception
DTE2
Transmissi
on
P1
End random-wait
beforehand
ACK
P0
Return ACK and then transmit
ACK
P0
Output
received message
Output received message
after outputting P0 response
Figure 3-1：Operations in the Extended Reception mode
15
(1)
(2)
(3)
The modem1 and 2 transmit messages at the same time.
Both modems wait for “ACK”, but they time-out.
Of the two modems, the one that has finished the random-time earlier (modem2 in this
case) retransmits its message.
(4) Receiving a message retransmitted during the random-wait, the modem1 receives the
whole message and then returns “ACK”.
(5) The modem1 does not output but keep its received message and transmits its own
message.
(6) The modem2 returns “ACK.”
(7) Receiving “ACK,” the modem1 outputs P0 response and the received message.
3.3.2 Contention between transmission and reception
If a modem receives a transmission command during reception, the modem completes the
reception, returns ACK and then starts processing the transmission command. Like the
Extended Reception mode, the modem outputs the received message only after completing
its transmission and outputting P0 response.
DTE1
Modem1
Modem2
DTE2
@TXT**
@TXT**
P1
Message
ACK
Wait until transmission ends
P0
P1
Message
ACK
RXT**
P0
RXT***
Output received message
after outputting P0
response
Figure3-2：Contention between reception and transmission
16
3.4 Communication time
The time consumed for each communication sequence in the Packet Transmission mode is
as follows.
(1) Time for entering a transmission command
The time consumed for entering a transmission command to the modem from its terminal
depends on the communication parameters between them.
Parameters are:
１．Transmission rate (300ps to 115.2kbps)
２．Data length (7 or 8 bits)
３．Parity bit (yes or none)
４．Stop-bit length (one or two bits)
５．Start-bit length (one bit)
For example, in the case of 9600bps for transmission rate, 8 bits for data length, no parity,
one stop bit and one start bit, the time consumed for sending one bit will be 104μs. And the
time for sending the data of a byte that consists of 10 bits will be 1.04ms.
In the case of sending a message data of ten bytes by “TXT” command, the time consumed
for sending the message will be 19.8ms because the transmission format becomes
“@TXT001ABCDEFGHIJ [CRLF]”, which is 19 bytes.
(2) Time to generate a transmission packet
The internal processing time to generate a transmission packet after accepting a command
is 1ms or less even though the length of the message data varies from 1 to 255 bytes.
In the Header-less Stream mode, it takes 2ms or less.
(3) Time for carrier sense
Prior to transmission, the modem checks SS correlation. If any SS correlation is detected
within 0.1ms, the modem does not transmit any data.
(4) Time to switch between transmission and reception
The internal processing time consumed for switching transmission to reception or vice
versa is approximately 0.07ms.
(5) Transmission time via radio
Depending on the number of bytes of a message data (1 to 255), the time consumed to
transmit the message is obtained from the following calculation.
1.74ms + (the number of bytes in the message) × 0.06ms
(6) Waiting time for “ACK”
This is the time consumed for waiting for “ACK” after completing transmission via radio.
The waiting time is 2ms.
The modem determines that the transmission has failed if it could not receive “ACK”
packet in that period of time. Then the modem waits for the random-wait time and then
repeats the above steps starting from the carrier sense if the number of retransmissions has
not reached the predetermined number. If there is no remaining number of retransmissions,
the modem ends its transmission, outputting the response of “transmission failure”.
(7) Time to transmit “ACK” or “NAK”
The time consumed for transmitting “ACK” or “NAK” is 1.74ms.
(8) Time for random-wait
When SS correlation has been detected by carrier sense, or when retransmission is required
due to the transmission failure, carrier sense will start only after waiting for the random
time in order to avoid collisions between packets. The time for random-wait is from 1ms to
7ms.
17
(9) Time for reception process
Approximately 0.2ms is consumed for the receiver modem to check the address in the data
and other information sent from the sender modem. The receiver modem recognizes the
data having passed the check and outputs it to its terminal.
The next example shows an approximate time necessary for sending a message of 10 bytes
when the parameters are 9600bps for transmission rate, 8 bits for data length, no parity, one
stop bit and one start bit.
In this example that includes one retransmission, the modem1 enters into the
Retransmission Routine because of no response from the modem2 after waiting for “ACK”.
In Retransmission Routine, the modem1 does a random-wait of 1ms to 7ms in order to
avoid collisions between packets, and then restarts transmission.
DTE1
Modem1
Modem2
DTE2
@TXT***: 20ms
P1
Packet generation:
0.1ms
Carriersense/transmission
switch: 0.17ms
Reception switch:
0.07ms
ACK-wait: 2ms
Random-wait:
1ms ~ 7ms
Carriersense/transmission
switch: 0.17ms
Command
processing 0.1ms
Message
transmission:
2.34ms
Message
transmission:
2.34ms
Change to
transmission: 0.07ms
Reception
processing: 0.2ms
RXT***: 19ms
ACK transmission:
1.74ms
P0: 2ms
Reception
processing: 0.2ms
Figure 3-3：Communication time in the Packet Transmission mode (an example)
18
3.5 Repeater function
This function is not installed in the modem at present. This section is only for explanation
for the future upgrade.
3.5.1 Abstract
Using repeaters is useful in extending communication area and eliminating dead-point area
where radio signal intensity is insufficient.
The repeater function can coexist with the modem function. If a modem receives a packet
whose “destination address” matches with the modem’s address, the modem outputs the
received data to its external equipment. (Modem operation) If a modem receives a packet
whose “repeater address” matches with the modem’s address, the modem transfers the
packet. (Repeater operation)
If a modem is used as a repeater, there is no need for the modem to have its external
equipment. When a conflict occurs between a transmission command and a transfer
operation, the priority will be given to the one that emerged first. If a transfer request
occurred afterward, the transfer is carried out after transmission. In contrast, if a
transmission request occurred afterward, the transmission is carried out after transmission.
A repeater station, for its installation purpose, should be used as a master station. (Not
mandatory)
Repeater = Master
Obstacle
Destination
Sender
Figure 3-4: Repeater
3.5.2 Repeater address
In the Packet Transmission mode, the repeater address is set by transmission command.
In the Header-less Stream mode, there are two ways bellow:
(1) Setting by memory register
(2) Setting by PAS command
3.5.3 Communication time via repeater
The communication time through a repeater is about twice as long as the time consumed in
the direct communication.
19
3.6 Frequency Channel
The FDQ02T can operate on 22 available frequencies between 2405.376 MHz and 2475.008
MHz with 2.048 MHz separation between each frequency.
See the table below for the exact frequency assignments.
Table 3-2 ： Frequency Channel
Channel №
Frequency(MHz)
Channel №
Frequency (MHz)
2405.376
24
2427.904
2407.424
26
2429.952
2409.472
28
2432.000
2411.520
30
2434.048
10
2413.568
32
2436.096
12
2415.616
34
2438.144
14
2417.664
36
2440.192
16
2419.712
38
2442.240
18
2421.760
40
2444.288
20
2423.808
42
2446.336
22
2425.856
70
2475.008
20
SECTION
4 FUNCTION CONTROL METHODS
21
4.1 Interface
4.1.1 Pin Assignment
The figure below shows the pin location of the serial communication connector,
following the DCE (Data Communication Equipment) specification.
No.3
No.1
No.14
No.1
Communication Connector A
Communication Connector B
Figure 4–1: Serial Communication Connector Location
Pin
No.
１
２
３
４
５
６
７
８
９
１０
１１
１２
Name
I/O
STAND-BY
RxD
TxD
Reserved
GND
DSR
RTS
CTS
Reserved
VCC
POWER-ON
RX/TX
Input
Output
Input
Input
－
Output
Input
Output
Input
－
Input
Output
１３
１４
/INIT
Reserved
Input
Input
Meaning
Terminal
treatment
Standby mode transition/return C-MOS
Output received data
C-MOS
Input transmitted data
47kΩ pull down
Do not use.
47kΩ pull down
Signal ground
－
Initialization completed
C-MOS
Flow control
47kΩ pull down
Flow control
C-MOS
Do not use.
47kΩ pull down
3.5V ~ 7.0V
－
Power on/reset
47kΩ pull down
Set external amplifier to
C-MOS
receiver or transmitter
Memory register initialization 47kΩ pull up
Do not use
47kΩ pull up
Table 4–1: Pin Descriptions
(1)
The terminals of the radio modem are based on the DCE (Data Communication
Equipment) mode. Accordingly, the transmission corresponds to the input, while the
reception corresponds to the output.
(2) Only supplying the power to the number 10-pin does not activate the MODEM. Raise
the number 11-pin to the Hi-level to turn on the modem. This operation works as a reset
function as well.
22
(3)
The number 1-pin is used for controlling the standby mode.
Lo: Communication mode / Hi: Standby mode
Be sure to add a pull-down circuit externally. (Refer to the Standby mode)
(4) The level of the number 6-pin turns to Hi-level when the modem gets ready to accept
commands after the modem is turned on or reset. To use this function, add a pull-down
circuit externally. (Refer to the Standby mode)
(5) The number 12-pin is used to control the external amplifier’s transmission and reception.
Lo: Transmission / Hi: Reception
(6) If the number 13-pin is at Lo-level when the modem is turned on or reset, the pin
initializes the memory register and makes the modem start working.
(7) Do not connect anything to the number 14-pin.
(8) As the input terminals accept 5V, users can use this interface for 5V-systems.
Table 2-2：Signal definition
Logic
0（ON）
1（OFF）
Voltage
Lo
Hi
Signal
Space
Mark
4.2 Serial Interface Setting
For connecting the FDQ02T modem with an external terminal equipment, RS232C is
appropriate for 1 to 1 topology. And set the RS485 mode to make RS485 multi-dropping
topology for multiple equipment connection. Interface configuration can be made with Pin
12 (/RS485ENB) of the serial communication connector.
To configure the RS485 mode, pull down Pin 12 with 10k ohm register. In this case, do
NOT connect this pin DIRECTLY to the GND. This is because in RS485 mode, this pin
will be as an output pin, after the initialization completes, to control the output buffer of the
RS485 driver IC chip. As for the RS232C interface, no connection is required because it is
pulled up inside.
Since the interface level of the FDQ02T modem is CMOS, the level conversion circuit
must be provided outside for connecting it with the RS232C or RS485 interface.
PC
FDQ modem
RS-232C
Converter
Figure 4–1: Connection Example to PC
23
4.3 Terminal Software Setup for Memory Register Control
Communication or terminal software is necessary to set the memory registers. Nearly any
PC communication software can be used. Launch the communication software and set the
terminal’s communication parameters as shown below. Refer to your specific
communication software instructions how to set these parameters.
bit rate:
data length:
stop bits:
parity bit:
flow control:
local echo:
terminator:
9600 bps
8 bits
1 bit
none
none
yes
carriage return + line feed
4.4 Memory Register Setting
Memory registers set the operation mode and communication parameters of the modem
and retain them in memory. All of the settings of the modem are made by these memory
registers.
Since the memory register is based on rewritable non volatile memories, these memories
can be readily rewritten by external terminal equipment such as PC and their contents will
be kept even after the power is turned off. This non volatile memory can be rewritten about
1 million times.
4.4.1 Memory Register Referencing and Setting
Memory registers are referenced and set with the REG command. (For more information,
refer to REG section at p.39 COMMAND SET DESCRIPTION)
Example procedure:
1. To view the current value of register 00, enter: @REG00 CR/LF
2. Modem responds with 00H CR/LF (REG00 is assumed to be 00H in this case and
varies in each setting case)
3. To set register REG00 to 0FH, enter: @REG00:0FH CR/LF
4. Modem responds with “P0” CR/LF
5. Enter “@RST CR/LF” or cycle the modem power, to activate new values
CR/LF
CAUTION
= command header (specify following characters are command)
 Terminator (carriage return + line feed)
When rewriting the modem’s memory registers, do not turn the
modem’s power off until the modem returns “P0” response. If the
power is interrupted before “P0” is returned, the memory contents
may be lost or corrupted and the modem operation will be
unpredictable.
24
CAUTION
If the memory contents are lost or corrupted, they can be restored to
original default settings by reinitializing them. (See the section below
titled p.25 MEMORY REGISTER INITIALIZATION)
Input character arrays of commands quickly and sequentially.
Too slow input (taking more than 5 seconds in the initial setting)
results in command error.
4.4.2 Memory Register Initialization
The memory registers can be restored to the factory default values at any time by using
one of the following two methods.
1) Memory Register Initialization by hardware:
Use either methods stated below, in which the modem attempts to read Pin 13
(/DefParam) of the serial communication connector at the startup and starts initializing
the memory registers when it is “L”.
Method 1. Set “L” level to Pin 13 (/INIT) of the serial communication connector
with the power turned off. When the power is re-supplied, the memory registers
are initialized and the modem starts operation in the factory default state.
Method 2. Set “L” level to Pin 13 (/INIT) of the serial communication connector
while the power turned on. In this state, force “L” to Pin 11 (POWER ON) of the
serial communication connector more than 1ms, then return the level to “H”. The
modem once becomes the Shutdown mode and returns to Active mode. Since this
sequence is the same as the reset, the memory registers are initialized and the
modem starts operation in the factory default state.
2) Memory Register Initialization by Command:
1. With the modem power is on and the communication software running, enter “@INI
CR/LF” at the terminal prompt.
2. The modem responds with “P0” response and immediately begins to operate using
the initialized factory default state.
CAUTION
While initializing the memory registers, do not turn the modem’s
power off. It take about 1 sec. to initialize the memory registers.
25
4.5 Command Control
Some FDQ02T parameters can be changed by issuing commands from the terminal
equipment. Various applications can be supported with the flexibility that command control
offers.
Command Entry
 When a command is issued to the modem from the terminal equipment, a command
header (one byte character) should be used the modem to acknowledge the command
from ordinary data. The command header is initially set to “@” (40H) but can be
changed to another character by changing the value stored in the memory register
REG10.
 Commands must use all upper case letters (A to Z). The modem does not recognize
lower case letters (a to z) in commands.
 A two byte terminator (carriage return (0DH) + line feed (0AH)) is used to terminate a
command. “CR/LF” shows the terminator in this manual. PC can send this two byte
character with pressing ENTER key once using a communication software. But some
setting is necessary in the software.
 The modem immediately executes a command once it’s recognized. If the command
requires a response, the modem returns the response to the terminal equipment
when its internal processing is completed.
The following is an example of a command entry and response:
@BCL CR/LF :command issued from the terminal equipment
P0 CR/LF
: successive completion response is returned
26
SECTION
MEMORY REGISTER DESCRIPTION
27
5.1 Memory Register Description
The FDQ02T modem contains 28 memory registers which are used to control and store
communication parameters and operation mode settings. After rewriting new register
settings, the power must be cycled, a hardware reset asserted, or a software RST
command is issued to validate the new settings.
The following table briefly lists each register, register function and default value:
Register
REG00
REG01
REG02
REG03
REG04
REG05
REG06
REG07
REG08
REG09
REG10
REG11
REG12
REG13
REG14
REG15
REG16
REG17
REG18
REG19
REG20
REG21
REG22
REG23
REG24
REG25
REG26
REG27
Function
Own (sender) address
Reserved
Destination address
Special mode
ID code 1（low-order digits）
ID code 2 (high-order digits)
Frequency Pattern
Reserved
Repeater address
Reserved
Command header
Retransmission count
Reserved
Buffer data timeout
Command input timeout
Command recognition interval
Terminator 1
Terminator 2
Radio communication setting 1
Radio communication setting 2
Wired communication setting 1
Wired communication setting 2
Wired communication setting 3
Wired communication setting 4
Special communication setting 1
Special communication setting 2
Data input timeout
reserved
Default Value
00H
F0H
00H
F0H
00H
00H
00H
05H
FFH
13H
40H
32H
B4H
1EH
32H
00H
0DH
0AH
8CH
00H
05H
09H
00H
00H
C0H
40H
00H
00H
Meaning
Address 0
－
Address 0
Communication mode
Refer to REG04
Refer to REG05
Pattern 0
－
Repeater invalid
－
‘＠’
50 times
－
30 seconds
5 seconds
0 second
ＣＲ
ＬＦ
Refer to REG18
Refer to REG19
Refer to REG20
Refer to REG21
Refer to REG22
Refer to REG23
Refer to REG24
Refer to REG25
Terminator valid
－
Table 5–1: Memory Registers
Suffix ‘H’ of each default value denotes HEX radix expression in the value.
28
REG00: Own (sender) address



[default value: 000]
This register is used to set the address of a modem. Valid values are from 000 to 254.
The value in this register is used as a sender address in every data packet being sent.
When the address-check function is used, it is possible to receive a packet if the
packet contains such value as a destination address.
REG01: Reserved

[default value: 240]
The FDQ02T does not use this register. Keep the default value as it is.
REG02: Destination Address




[default value: 000]
In the Header-less Stream mode, this register is used to set the address of a destination
modem. Valid values are from 000 to 255.
This destination address is attached to every data packet to be sent.
When using the address-check function, set the destination address in this register.
When using the “DAS” command, however, the address defined by the “DAS”
command is always prioritized.
The destination address 255 represents the broadcast communication.
REG03: Special mode

[default value: F0H]
This register is used to set a special operating mode. The default is the
Communication mode.
REG04: ID Code 1



[default value: 00H]
Used with ID code 2 (REG05), set the ID code. Valid values are 000 to 255.
Together with ID code 2, up to 65535 ID codes can be set.
The ID code identifies the group of the modems works in the same group. The ID
code is used to prevent erroneous connection with other systems and for
communication security.
Before transmission, radio data packets are scrambled using a pseudo-random data
sequence generated with this ID code as the seed. During reception, the original data
is restored by de-scrambling it with the pseudo-random data sequence. The modems
with different ID codes cannot communicate with each other.
REG05: ID Code 2


[default value: 00H]
Used with ID code 1 (REG04), set the ID code. Valid values are 000 to 255.
Together with ID code 1, up to 65535 ID codes can be set.
In case plural modems are used as a single system, always set the same ID code for all
modems and repeaters.
29
REG06: Frequency pattern



[default value:00H]
This register is used to set a frequency pattern. The valid values are from 00H to 15H.
To establish communication in a system, the same frequency pattern should be used.
In contrast, to let multiple systems operate in the same area, each system should have
different frequency patterns.
When using multiple systems in the same area, frequencies may periodically match
and interfere with each other even if the systems are using different frequency
patterns.
REG07: Reserved

[default value: 05H]
The FDQ02T does not use this register. Keep the default value as it is.
REG08: Repeater Address


[default value: FFH]
This register is used to set repeater address when using repeater in the Header-less
Stream mode.
When not using repeater, set “FFH” at this register, making the communication direct.
REG09: Reserved

[default value: 13H]
The FDQ02T does not use this register. Keep the default value as it is.
REG10: Command Header



[default value: 40H]
Sets the character that identifies the start of a command.
The default is character “@” (40H).
When this character is input from the terminal equipment after no character is
received for the command recognition interval (REG15) or longer, subsequent
input character is recognized as a command for the modem.
REG11: Retransmission Count


[default value: 32H]
Sets the maximum number of packet retransmission attempts. Valid values are 000
to 255.
When retransmission exceeds the retransmission count (retransmission count plus
one), the modem outputs an error response to the terminal equipment.
REG12: Reserved

[default value: B4H]
The FDQ02T does not use this register. Keep the default value as it is.
30
REG13: Buffer Data Timeout




[default value: 1EH]
This register is used to set the waiting time to clear the content of the buffer after the
last change in the buffer.
Valid values are from 000 to 255 seconds with an increment of 1 second. The default
value is 30 seconds.
If the Buffer Data Timeout is not necessary, set it at “0.”
This value should be longer than the Data Input timeout (REG26).
REG14: Command Input Timeout
[default value: 32H]

Sets the character input timeout interval for command input. It is used as the
timeout between the command header and the character following it and between
each character of the command.

At the timeout, the modem operation transits from command-input-state to datawait-state.
Valid values are 000 to 255, representing tenths of seconds in 0.1 second increments.
(Set an integer value equal to ten times the number of seconds desired.)
A setting of 000 disables this timeout function


REG15: Command Recognition Interval




When a message data contains a command header character (in case of binary data
or data in two-byte Chinese characters), data following the command header
character will be interpreted as a command, the message does not transmit properly.
Sets the necessary vacant duration time interval to discriminate between ordinary
data character and a command header character. Input a command after a longer
interval than time interval setting.
Valid values are 0.1 to 25.4 sec., representing tenths of seconds in 0.1 second
increments. (Set an integer value equal to ten times the number of seconds desired.)
When set to 000, the command header is recognized at any time, and when set to
255, all command header character are ignored.
REG16: Terminator 1

[default value: 0DH]
Set an arbitrary 1 byte terminator. In case of a 2-byte terminator, set the first byte
character of the terminator.
REG17: Terminator 2

[default value: 00H]
[default value: 0AH]
Set another arbitrary 1 byte terminator. In case of a 2-byte terminator, set the last
character of the terminator .
31
REG18: Communication Setting 1
[default value: 8CH]
Bits 7 – 6: Protocol
bit 7
bit 6
Setting
Data transparent mode
Reserved
Packet transmission mode
Headerless stream mode
Table 5–7: Protocol
Bits 5: Reserved

The FDQ02T does not use this register. Keep the default value as it is.
Bit 4 Transmission format
transmit in the text form (default value)
transmit in the binary form
Table 7–4 Transmission format


Selects the transmission format. When data are transmitted to the destination
station which is set to the normal packet transmission mode, output text format
(RXT, RBN) from the receiver modem (destination station) differs depend on this
setting.
This setting does not effect in the receiver modem set as headerless stream mode.
Bits 3 – 2 Terminator Setting
bit 3
setting
two kinds of arbitrary 1 byte code (REG16, REG17)
arbitrary 1 byte code (REG16) ＋ a wild card (any character)
arbitrary 2 byte code (REG16 + REG17)
carriage return (CR) ＋ line feed (LF) (default value)
bit 2
Table 7–5 Terminator setting


Sets the terminator to identify the breakpoint of a packet. The modem transmits data
considering this character as the breakpoint of a packet.
In case of using an arbitrary terminator, set it to REG16 and 17.
Bit 1: Source address check
Inhibit source address checking (default value)
Activate source address checking
Table 5–4: Source Address Check Settings
32

When the source address checking is active and the source address in the
received packet header does not match the destination address setting (REG02),
the data is discarded (data cannot be received).
Bit 0: Destination address check
Inhibit destination address checking on receipt (default)
Activate destination address checking on receipt
Table 5–5: Destination address check

When the destination address checking is active and the destination address in
the received packet header does not match the received modem’s local station
address (REG00), the data is discarded (data cannot be received).
REG19: Communication Setting 2
[default value: 00H]
Bit 7 - 6: Reserved

The FDQ02T does not use this register. Keep the default value as it is.
Bit 5: Broadcast Reception
Enable broadcast transmission reception (default value)
Disable broadcast transmission reception
Table 5–7: Broadcast Reception Settings

Enable/disable reception of broadcast transmission in packet transmission mode
(Mode 3 and 5).
Bit 4 - 2: Reserved

The FDQ02T does not use this register. Keep the default value as it is.
Bit 1: Master/Slave
Slave station (default)
Master station
Table 5–11: Master/Slave


There should be no more or no less than one master station among a group of modems
that communicate each other. The number of slave stations can be up to the number
defined by the REG00. (253 Max)
The master station transmits beacon as a reference.
Bit 0: Reserved

The FDQ02T does not use this register. Keep the default value as it is.
33
REG20: Wired communication Setting 1
[default value: 05H]
Bit 7: Data Length
8 bit data bytes (default value)
7 bit data bytes
Table 5–13: Data Length Settings
Bit 6: Parity Bit
No parity bit (default value)
Parity bit
Table 5–14: Parity Settings
Bit 5: Even/Odd Parity
Even parity (default value)
Odd parity
Table 5–15: Odd/Even Parity Settings

Invalid when bit 6 is set to 0, without parity.
Bit 4: Stop Bit
1 stop bit (default value)
2 stop bits
Table 5–16: Stop Bit Settings
Bits 3 – 0: Baud rate setting
Bit 3
Bit 2
Bit 1
Bit 0
Setting
300 bps
600 bps
1200 bps
2400 bps
4800 bps
9600 bps (default)
19200 bps
38400 bps
Reserved
Reserved
Reserved
Reserved
57600 bps
115200 bps
Reserved
Reserved
Table 5–17: Baud Rate
34
REG21: Wired communication Setting 2
[default value: 09H]
Bits 7 – 5: Reserved

The FDQ02T does not use this register. Keep the default value as it is.
Bit 4: Command Header
Use REG 10 character
Use Break signal
Table 5–16: Command Header
Bit 3 - 2: Reserved

The FDQ02T does not use this register. Keep the default value as it is.
Bit 1: Flow Control
Software flow control (default value)
Hardware flow control
Table 5–18 Software/Hardware Flow Control Settings



Selects the flow control method. This setting must match the connected terminal
equipment’s setting.
Hardware flow control uses the two control lines RTS and CTS. When using with
the RS485 interface, be sure to set to 0.
Software flow control uses XON and XOFF codes.
Bit 0: Reserved

The FDQ02T does not use this register. Keep the default value as it is.
REG22: Wired communication Setting 3
[default value: 00H]
Bit 7: Enable and Disable Reception
Enable reception at the initial state (default value)
Disable reception at the initial state
Table 5–19: Enable/Disable Reception


The initial state is in reception enable. Depending on an usage of the modem, the
initial state of the modem may be better in the reception disable state. In such a case,
use this setting.
Issue the REN command to enable reception.
Bit 6 - 0: Reserved

The FDQ02T does not use this register. Keep the default value as it is.
35
REG23: Wired communication Setting 4
[default value: 00H]
Bit 7 - 5: Reserved

The FDQ02T does not use this register. Keep the default value as it is.
Bit 4 : CR/LF addition/deletion
(1) Setting at the headerless stream mode
does not add CR/LF code to the received data (default value)
adds CR/LF code to the received data
Table 7–6: Addition of CR/LF code

In the headerless stream mode, setting is made whether the CR/LF character is
added to the received data or not.

In the communication between the modems set to the headerless packet mode, this
setting is invalid because the terminator is originally added to the transmit data.
However, when a packet is received from the modem in the packet transmission
mode, there is no addition of the CR/LF terminator. In this case, set this bit to 1.
Then the received packet is output with the CR/LF character is added.
(2) Setting at the packet transmission mode
adds the CR/LF to the received data (default value)
does not add the CR/LF to the received data
Table 7–7: Deletion of CR/LF character

In the packet transmission mode, setting is made whether the CR/LF character is
added to the received data or not.

At the receiver modem (set to the packet transmission mode), the sender (set to the
headerless stream mode) side terminator (CR/LF character as default) plus
packet transmission mode terminator (CR/LF) are output. To avoid such
redundant outputs, set this bit of the modem in the normal packet transmission
mode to 1.
Bit 3 - 0: Reserved

The FDQ02T does not use this register. Keep the default value as it is.
36
REG24: Reserved

[default value: C0H]
The FDQ02T does not use this register. Keep the default value as it is.
REG25: Reserved

[default value: 40H]
The FDQ02T does not use this register. Keep the default value as it is.
REG26: Data input timeout

[default value: 00H]
Sets the vacant duration time interval to recognize as the end of the message data
input in the headerless stream mode.
REG27: Reserved

[default value: 00H]
The FDQ02T does not use this register. Keep the default value as it is.
37
SECTION
COMMAND SET DESCRIPTION
39
6.1 Command Set Description
This section provides a description of each command available in the FDL command set.
The table below lists each command and it applicability in each operation mode.
Command
ARG
Function
BCL
Reference All Memory Resisters
Clear Transmit and Receive Buffers
DAS
Reference and Set the Destination Address
DBM
Read Signal Strength
HOP
INI
Refer to or set frequency pattern
Initialize All Memory Resisters
ODA
Disable Received Data Output
OEN
Enable Received Data Output
PAS
Reference and Set Repeater Address
10
RDA
Disable Wireless Reception
11
REG
Reference and Set Memory Resisters
12
REN
Enable Wireless Reception
13
RID
Display Received Serial ID
14
RNO
Reference and Set Retransmission Count
15
ROF
RF Circuit Block Power Down
16
RON
RF Circuit Block Power Up
17
RST
Reset
18
SAS
Reference and Set Local Station Address
19
STS
Read Status
20
TBN
Transmit Binary Data
21
TBR
Transmit Binary Data Through Repeater
22
TID
Display Local Station Serial ID
23
TS2
Test radio link
24
TXR
Transmit Text Data Through Repeater
25
TXT
Transmit Text Data
26
VER
Reference Version Information
Table 6–1: Command to Mode Availability
The symbols used in this section have the following meaning:
CR/LF
[]
()
{}
Input character from the terminal equipment to the modem
Output from the modem to the terminal equipment
Command header
Terminator (carriage return + line feed)
Required input parameter/s Be sure to input.
Optional input parameter/s May be omitted
485 mode local station address (REG00). Be sure to
input at 485 mode
In the Syntax and Response segments of the following command descriptions the
terminator symbol (CR/LF)has been omitted for clarity.
40
ARG
Reference All Memory Registers
Syntax
ARG{Local Station Address}
Local Station Address : local station address for 485 mode (000 to 999).
Response
All settings are indicated (REG00 to REG27)
N0: command error (Except 485 mode)
Function
Recalls the contents of all 28 memory registers.
Example
>@ARG CR/LF
@BCL CR/LF
@BIV025 CR/LF
@BIV CR/LF
<025 CR/LF
Set the receiving (transmission) interval at 250 ms
command accepted
Refer the current value
025 (25 0ms) returns
Notes
Values set by the BIV command will be lost by turning the power on or resetting.
Generally, this parameter is no need to modifying. Use with the default value.
41
DAS
Reference and Set Destination Address
Syntax
DAS(set destination address)
set destination address
Response
xxx
P0
N0
: the desired destination address (000 to A23)
: current value (reference)
: command accepted (setting)
: command error
Function
References or sets the destination address of the modem connection established
with in the data transparent mode and headerless stream mode
The current DAS value can be referenced by entering the command with no
parameter.
The DAS command is used for temporary modifying destination address.
Change the value of REG02 to change the default value.
Example
>@DAS002 CR/LF
@DAS CR/LF
<002 CR/LF
set the destination address to 002
command accepted
reference the destination address
current value output (002)
Notes
This command cannot be used in packet transmission mode.
The local station address (REG00) must be set to communicate with the remote
modem. Communication cannot be established unless the addresses coincide with
each other.
This command is not arrowed to use in 485 mode.
DBM
Read Signal Strength
Syntax
DBM{Local Station Address}
Local Station Address : local station address for 485 mode (000 to 999).
Response
-xxxdBm
N0
: signal strength
: command error (Except 485 mode)
Function
Reads the received signal strength and outputs the value in dBm.
Higher values represent stronger signal strength and better receiving conditions.
Example
>@DBM CR/LF
<-78dBm CR/LF
: read signal strength
: signal strength is -78dBm.
42
Notes
The range available for measurement is –40 dBm to –100 dBm. Since the signal
strength indication has a slight error in its value, use this result for your ‘rule of a
thumb’ reference.
This command outputs the strength of last received packet.
HOP
Refer to or set frequency pattern
Syntax
HOP
HOP(:pattern number)
Pattern number
: 00 ~ 21
Response
xx
P0
N0
: when referring
: normal end (when setting)
: command error
Function
This command refers to or sets frequency pattern.
To refer to the current setting, enter this command alone. To set a pattern number,
enter this command with the pattern number.
Setting frequency pattern once releases synchronization.
The setting by this command is temporarily effective. It returns to the value defined
by the REG06 after resetting.
Example
>@HOP CR/LF
<00 CR/LF
>@HOP:21 CR/LF
<21 CR/LF
reference the pattern number
output value (pattern number 00)
set pattern number to 21.
output value (pattern number 21)
INI
Initialize All Memory Registers
Syntax
INI{Local Station Address}
Local Station Address : local station address for 485 mode (000 to A22).
Response
P0
N0
: command accepted
: command error (Except 485 mode)
Function
Sets the all contents of the memory registers to the factory default values.
Example
>@INI CR/LF
@ODA CR/LF
@OEN CR/LF
@ODA CR/LF
@OEN CR/LF
@PAS CR/LF
<004 : A00 CR/LF
@RDA CR/LF
@REN CR/LF
@REG00 CR/LF
<01H CR/LF
>@REG00 : 023 CR/LF
@RDA CR/LF
@REN CR/LF
@RID CR/LF
: requests the received remote station’s serial ID code
< XXXXXXXXXXXX CR/LF :outputs the received remote station’s serial ID code
RNO
Reference and Set Retransmission Count
Syntax
RNO (:Retransmission count) {; Local Station Address}
Retransmission count
Local Station Address
Response
xxx
P0
N0
: maximum number of retransmissions (000 to 255)
: local station address for 485 mode (000 to A22).
: current set value
: command accepted
: command error (Except 485 mode)
Function
This command references or sets the number of retransmissions (retransmission
count) to attempt before making decision as transmission failure.
The current value can be referenced by issuing the command with no parameter.
RNO command is used to temporarily change the retransmission count. To
change the default value, change the setting of REG11.
Example
>@RNO CR/LF
<050 CR/LF
>@RNO010 CR/LF
@ROF CR/LF
@RON CR/LF
@ROF CR/LF
@RON CR/LF
@RST CR/LF
@SAS001 
@SAS 
<001 
set the station address to 001
connection established
reference the local station address
output the current value (001)
STS
Read Status
Syntax
STS{Local Station Address}
Local Station Address : local station address for 485 mode (000 to 999).
Response
xxxxxxxx
N0
: modem’s current status (x = 0 or 1)
: command error (Except 485 mode)
Function
Reads the modem status register. (Represented with an 8-bit binary number.)
50
XXXXXXXX
Bit
Name
Connection
Reception
Output message
Receive buffer
Transmit buffer
Reserved
Reserved
Reserved
Status
Connected
Disabled
Disabled
Data exist
Data exist
Disconnected
Enabled
Enabled
Data empty
Data empty
Figure 6–2: Modem Status Bit Description
Example
>@STS CR/LF
<00001010 CR/LF
: read the current status
: Received data exist, Output message enabled,
Reception disabled ,Disconnected.
TBN
Transmit Binary Data
Syntax
TBN[destination address][message byte length]{Local Station Address}[message]
Destination address
Message byte length
Local Station Address
Message byte
address of the transmission (000 to A23)
message length (001 to 255)
local station address for 485 mode (000 to A22).
arbitrary binary data (255 or less)
Response
P0
P1
N0
N1
N2
N3
data transmission succeeded
command accepted, data being transmitted
command error (Except 485 mode)
data transmission failed -- no response from destination station
data transmission failed -- destination station is in the reception disabled state
data transmission failed -- destination station cannot receive because its receive
buffer is full
Function
Transmits binary data in the packet transmission mode.
Any message length between 1 to 255 bytes is accepted.
The modem counts the number of message characters and transmits the message.
For broadcasting messages to multiple modems, set the destination address to
255. In this case, the modem retransmits the message the number of times of the
Retransmission count plus 1, and then it will return “P0”.
In case the global addressing command is issued to plural modems connected by
RS485 multi-dropping interface, the transmission stops when any modem outputs
“P0”, “N2” or “N3” response to the RS485 line.
Example
>TBN002005HELLO CR/LF
@TBN003004MAIL CR/LF
transmit “HELLO” from station 001 to station 002
data being transmitted
data transmission succeeded.
retransmit “MAIL” from station 001 to station 003
51
TBR100002005HELLO CR/LF
@TID CR/LF
: requests the modem’s local serial ID code
< XXXXXXXXXXXX CR/LF :outputs the modem’s local serial ID code
TS2
Teat radio link
Syntax
TID{Local Station Address}
Local Station Address : local station address for 254mode (000 to 254).
Response
P0
: command accepted
Connect
: connect link, start measurement
oooooooooooooooooooooooooooooooooo
BER=0.0E-3 PER=0.00 PWR=-060dBm : read out
Disconnect : disconnect link
N0
: command error
N2
: destination modem rejects reception
N7
: the modem is trying to establish synchronization and cannot start the
test
Function
To help evaluate the radio link condition, this command measures and outputs the
“Bit Error Rate,” “Packet Error Rate” and “Signal Intensity.”
53
The command accompanying a destination address requests a connection to the
destination address. The command without a destination address requests a
connection to the address defined by the DAS command. The modem that has
received a connection request starts actions of the TS2 immediately.
The modem to which the command is entered is called “TS2 master.” The
destination modem is called “TS2 slave.” The TS2 slave does not output any
measurement results.
Ten-consecutive failures in reception disconnect the radio link. Meanwhile, the TS2
master keeps outputting connection request.
The TS2 master modem renews the measurement result approximately every
0.27second and continues outputting the measurement results until the TS2
command is terminated. To stop measurement, enter the command “RST” or turn
off the modem.
The radio modem, being turned into a special mode by this TS2 command, may
output command error or irrelevant responses against all commands except RST
command.
The TS2 command always conducts “address check.”
TXR
Transmit Text Data through Repeater
Syntax
TXR [repeater address] [destination address]{Local Station Address}[message]
repeater address
destination address
Local Station Address
message
address of repeater to pass through (000 to 999)
address of destination station (000 to A23)
local station address for 485 mode (000 to A22).
any text data (255 or less)
Response
P0
P1
P2
N0
N1
N2
N3
data transmission succeeded
command accepted, data being transmitted
data packet reached to repeater
command error (Except 485 mode)
data transmission failed -- no response from the destination station
data transmission failed -- destination station is in the reception disabled state
data transmission failed -- destination station cannot receive because its receive
buffer is full.
Function
Transmits text data in the packet transmission mode through repeater.
Any message length between 1 to 255 bytes is accepted. The completion of data
input is recognized by the terminator.
For broadcasting messages to multiple modems, set the destination address to
255. In this case, the modem retransmits the message the number of times of the
Retransmission count plus 1, and then it will return “P0”.
In case the global addressing command is issued to plural modems connected by
RS485 multi-dropping interface, the transmission stops when any modem outputs
“P0”, “N2” or “N3” response to the RS485 line.
Example
>@TXR100002HELLO CR/LF : transmits HELLO from station 001 to station 002 through
repeater 100
@TXT002HELLO CR/LF
@TXT003MAIL CR/LF
@VER CR/LF
FCC ID : AZP-FDQ02T2
RSS-210 ISSUE6 (no user license required)
>CERTIFICATION No. 2914D-FDQ02T2
22.7mW max.
Direct sequence spread spectrum
Single communication
2405.376 to 2475.008 MHz
22 channels
134 kbps
PLL synthesizer
In an outdoor environment: more than 3000 feet (line-of-sight)
Hirose U.FL-R-SMT
30 times max. using E.FL-LP-N extractor (for exclusive use)
7.3.2 Communication Control
Radio link control
Error checking
Error handling
Multi-access function
Command control
CRC-CCITT (16 bit)
ARQ (Automatic Retransmission Request)
Connect on clearest channel from selected frequency group
7.3.3 Data Terminal Interface
Physical interface
Interface specification
Communication
Synchronization
Transmit/receive buffer
Baud rate
Flow control
Data length
Stop bit
Parity
Molex 53780-1470 (14 pins)
JST SM03B-SRSS-TB(LF)(SN) (3pin)
Serial communication
Input CMOS level (5V tolerant with hysteresis)
Output CMOS level
Full-duplex or half-duplex system
Asynchronous
Approx. 3 k bytes in total
300 / 600 / 1200 / 2400 / 4800 / 9600 / 19200 / 38400 / 57600 / 115200 bps
Hardware flow / Software flow
7 or 8 bit
1 or 2 bit
Even, odd, or none
7.3.4 Power Supplying
7.3.4.1
Modem (Connector A)
Supply voltage
Current consumption
7.3.4.2
3.5 to 7.0 V DC
110 mA or less in the active mode
35 mA or less in the RF stop mode
1mA or less in the standby mode
Power Amp. (Connector B)
Supply voltage
Current consumption
6.0 to 9.0 V DC
150 mA or less in the transmitter mode
5 mA or less in the receiver mode
60
7.3.5 Environmental
Operating temperature
Storage temperature
Operating humidity
Storage humidity
Vibration resistance
Shock resistance
-20 to +50 ℃
-30 to +60℃
90%RH max. (no condensation)
90%RH max. (no condensation)
JIS-C-60068-2-6:1999 (50m/s2, 10 to 150 Hz, 15 cycles
JIS-C-60068-2-27:1995 (500m/s2)
(JIS specification is Japanese Industry Standard)
7.3.6 Miscellaneous
Memory register
Case
Outer dimensions
Weight
Rewritable times: approx. 1 million times
Ni plated steel plate
60 (W)×50(D)×8(H)mm
Aprox. 30g
†
Operating distances depend on the conditions such as obstructions and electrical interference. Under ideal, line-ofsight conditions, reliable operating distances greater than specified may be achieved. Optional, directional antennas
can significantly increase the operating range.
Specifications and appearance are subject to change without prior notice.
Futaba Corporation
Rev. 120626-02
7.4 Outline View
7.4.1 FDQ02T
No.3
No.1
No.14
No.1
Communication Connector A
Communication Connector B
7.4.2 Communication Cable A
62
7.4.3 Antenna Type A
7.4.4 Antenna Type B
7.4.5 Antenna Type C
Futaba Corporation
Rev. 120626-02
Futaba Corporation
Electronic Systems Business Center
1080 Yabutsuka Chosei
Chiba, 299-4395 JAPAN
Tel: +81 (475) 32-6173,
Fax: +81(475) 32-6179
Internet: www.futaba.co.jp
In the United States
Futaba Corporation of America
Industrial Radio Control Department
1605 Penny Lane
Schaumburg, IL 60173
Tel: (847) 884-1444,
Fax: (847) 884-1635
Internet: www.futaba.com
64

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