Data Sheet(pdf)

Hartcran House, 231 Kenton Lane, Harrow, Middlesex, HA3 8RP, England
Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233, www.radiometrix.com
CTA88 App. board
Issue2, 27 July 2012
CTA88 Remote Control Application Boards
The CTA88 chip is a simple encoder/decoder for use
with ISM/SRD band telecommand modules. It permits
a simple, one way wireless link to be established, for
simple remote control applications, with a minimum
of effort and no customer software input.
These TX and RX application boards are designed to
allow easy evaluation of the CTA88 device in
elementary jobs. They provide a simple 8 channel
implementations of remote control, using either
LMT/LMR or BiM footprint wireless radio modules.
Features
8 bit address and 8 bit data select switches
8 relays to control mains powered devices
rated up to 8A, 250VAC/30VDC
Visual indication of valid code received and active
relays
RF module range testing
8 Push buttons for momentary control of relays
Momentary, Latched outputs
Dynamic relay state changes
Setup is simple as Plug-and-Play
RF Remote Control Demonstration
Figure 1: CTA88 RX application board
Kit Contents
The CTA88 application kit is supplied with the
following contents:
2 CTA88-000-DIL
1 CTA88 (10mW/100mW) Encoder board
or 1 CTA88H (500mW) Encoder board
1 CTA88 Decoder board
1 Radiometrix Transmitter module (ordered
separately)
1 Radiometrix Receiver module (ordered
separately)
1/4-wavelength monopole or helical antennas
8 Jumper Links
Figure 2: CTA88 TX application board
Additional requirement
External power supply or 12V DC power adaptor
Radiometrix Ltd
CTA88 application board manual
page 1
Common features:
Interfaces
Input/output
Power
CTA88 mode
CTA88 address
Radio channel
Radio setup
RF
8 x 3.81mm pitch 3 pin "Phoenix" two part connectors (JP1 – JP8)
2.1mm DC power connector (JP15) and 2 pin "Phoenix" (JP14).
(these inputs are diode "or'ed" together)
On/off slide switch (S3) on pcb
3 position jumpers (JP12)
8 position DIP switch (S1)
4 position DIP switch (optional) (S2)
2 pin 0.1" pitch "Molex" serial connection
(optional) (JP13)
SMA (or optional screw terminal) (CON1)
Indicators
Power on LED (D10)
send/receive LED (D9)
8 x I/O pin state LEDs (D1 – D8)
CTA88
Clock
3.58MHz (ceramic resonator)
Data rate 1kbit/sec Biphase coded burst
Part: Leaded 28 pin, in socket
Size
TX & RX boards 115 x 86 x 20mm (excluding connectors)
(four 3.3mm diameter mounting holes are provided)
Operating temp.
-20°C to +70°C (some radios may be limited to -10°C to +55°C)
(Storage
-30°C to +70°C)
CT88 TX Application board
Inputs
Supply
2.5V to 50V (5mA) opto-isolated inputs with manual "test"
pushbuttons (SW1 – SW8)
LED indicators on all channels
Link selectable DC supply (5V aux, 5V main, or unregulated Vin) on
each channel. (fit one link only on jumper JP10)
Link selecting low power / normal mode (JP11)
6 –15V DC
7 –15V DC for 400-500mW high power variants
idle current: 4mA (standard mode)
3µA (low power mode)
receive current Depends upon receiver module fitted
transmit current Depends upon transmitter module fitted
50mA with LMT2-433-5 fitted
Radio modules
Radiometrix Ltd
any LMT1, LMT2 or LMT3 version
transmitter versions of NiM2, BiM1, BiM1H, BiM2G, BiM3B,
RDL2(tx). (Fit R32. Idle current increases by 10mA)
CTA88 application board manual
page 2
TX application board jumpers and DIP switches
The TX encoder board has 4 jumpers and 2 DIPswitches. The jumpers are used to select the
number of operating modes featured in the board while the 4 way and 8 way DIP switches are
used for frequency channels selection and address selection respectively.
Figure 3: CTA88 Encoder application board for BiM / LM Transmitter
Assumed the board is held "long side horizontal" with the RF and power connectors at the top
Jumper. Name
Function
Position
Mode
Low current / always
JP10
SUPPLY Selects which power supply is fed Left
present +5v
to the user inputs busbar
(Only EVER fit one jumper on this
(100mA max, total)
(default)
header)
JP11
LOW
POWER
JP12
JP13
MODE
RADIO
SETUP
R32
Radiometrix Ltd
Middle
Main +5v (250mA).
In low power mode
this rail is only
Present during
actuation
Right
Unregulated Vin, via
switch and 1A
schottky diode
Normal
Up
Selects low power or normal
mode
Down
Normal mode draws 5mA
Low power (default)
quiescent current:
Low power draws 3uA, but if "low
power" operation is selected then
the coder device and transmitter
are only activated when one of
the inputs is "active". Therefore
only modes 001 and 100 can be
used with this option.
Selects Operating modes
see operating mode section below
Radio setup (only for LM series
Ground (GND) and the RS232 input
radios)
to the PGM pin
Factory fitted for RDL2 (tx) use. Idle current increases by 10mA
CTA88 application board manual
page 3
TX application board DIP switches
The TX application board features an 8 way (S1) and a 4way (S2) DIP switches. The optional 4
way DIP switch which is used for parallel frequency channel select is only required when our multi
channel LM series radios like LMT1 / LMT2 s are used. The 8-way DIP switch is used to set an 8
bit (256 combinations) unit address.
CTA88 RX Application board
Outputs
8A 240V AC rated change over relay contacts (RLA1 – RLA8)
LED indicators on all 8 channels (D1 – D8)
Supply
12V (10-15V)
receive/idle current (depends upon radio module fitted)
23mA with LMR2-433-5 fitted
relay current 25mA per activated channel
Radio modules
any LMR version
receive only versions of NiM2, BiM1, BiM2A, BiM3 (any)
CVR1 (5V versions); RDL2 (rx)
RX application board jumpers and DIP switches
The RX encoder board has 2 jumpers and 2 DIP switches. As with TX board, the jumpers are used
to select the number of operating modes featured in the board while the 4 way and 8 way DIP
switches are used for frequency channels selection and address selection respectively.
Figure 4: CTA88 Decoder application board for BiM / LMR Receiver
Assumed the board is held "long side horizontal" with the RF and power connectors at the top
Jumper. Name
Function
Position
Mode
JP12
MODE
Select Operating mode
(see operating mode section below)
P13
PGM
Radio setup (only for LM
Ground (left) and the RS232 input
series radios)
(right)
Radiometrix Ltd
CTA88 application board manual
page 4
RX application board DIP switches
The RX application board features a 4 way (S2) and an 8 way (S1) DIP switches. The optional 4
way DIP switch which is used for parallel frequency channel select is only required when our multi
channel LM series radios like LMR1 / LMR2 s are used. The 8 way Dip switch is used to set an 8
bit (256) unit address.
Operating modes
Device operation is set up by a 3 bit word, on the C0-C2 jumpers. This is JP12 on both the TX and
the RX boards.
C2 C1 C0
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1
1
1
1
0
1
C2 C1 C0
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
Encoder Transmitter Modes ( 1 = 5V Jumper Link Inserted )
Device is inactive
Send single burst, once only (on reset, and on each C0 low/high transition)
Send continuously
Send single burst on any change of Data input word
Send continuously while any Data input pin is high
Send a burst on average every 1.75 seconds. A P/N sequence generates a delay of
1 -2.5s between bursts
Serial mode (see notes)
Transmitter test. Send a constant 250Hz squarewave (C0=H, C1=H, C2=H)
Decoder Receiver Modes
( 0 = 0V Jumper Link Removed )
Local test. Data output word equals Address input word
Output last data received (150ms timeout)
Output last data (3 second timeout: see notes)
Hold last data received
D0-3 'set' corresponding bit, D4 resets D0, D5 resets D1 .. and so on
A '1' on any bit toggles the state of the corresponding output pin
Serial (see notes)
Link test. Data word outputs most recently received burst address
Which modes to use?
The CTA88 have a variety of operating modes. These are better understood by relating them to
different applications:
1. Wire replacment:. Operate transmitter in mode 010 (continuous: allows the STB output to be
used as a 'good link' indicator) and receiver in mode 001.
If receiver operates in latched (011) mode then 'chattering' of the output is reduced (at extreme
range, or with interferers present), but the link is no longer fail safe
Latched mode is also compatible with send on change (011)
2. Momentary push buttons: Transmitter in mode 100 (send while any input is high), receiver in
001. Outputs remain high for as long as the button is held down. This is the mode one would
choose to control (for instance) a pan/tilt head (D0= slew left, D1 = slew right, etc)
3. Controlling four lights: Use transmit mode 100 (send while high) or 011 (send on change),
with the receiver in mode 100. This gives four outputs (D0-D3), each set by one transmitter input
(D0-D3) and reset by another (D4-D7)
Radiometrix Ltd
CTA88 application board manual
page 5
4. Monitoring infrequent events (such as door open/shut): Use transmitter in periodic transmit
(101, to keep channel occupancy and power usage low), and receiver on 010 (3 second timeout),
011 (hold last burst) or 110 (serial data output, to a PC or data logging device).
In this mode the transmit duty cycle is less than 10% on average, and the variable delay between
bursts permits same channel operation of several CTA88 links with minimum transmit collisions
5. Send burst on trigger event: Set transmitter to mode 000 (off) and use C0 line high as a
'strobe' line. A pulse between 100µs and 25ms with initiate a single transmission.
This gives an idea of the usable combinations, but with a little imagination others will be found
Incompatibilities: Certain operating modes are not compatible with some of the others:
RX 101 (toggle) doesn't work with TX 101 (periodic send) as the outputs switch on and off at the
send rate
RX 100 (set and reset) doesn't work with TX 101 (as the response is sluggish) and doesn't need
TX 010 (constant)
RX 101 (toggle) is also not best suited to extreme range operation, where the initiation can be a
little sporadic.
(At extreme range, latched (011) or set/reset (100) are the best receiver modes, combined with TX
100 (send on any '1') as in this mode the failure of any single burst to be received matters less, as
the operator can continue to operate the transmitter until the receiver actuates )
Serial operation: The CTA88 is capable of a very simple, single byte, serial link operation. It is
selected by a '110' mode input.
This function is mainly intended for diagnostic work in the lab, but it does allow a pc to send or
receive CTA88
command bursts. Address is still selected by the parallel inputs
On the RX:
D4 = 'true' RS232 output
(+ve = low (0), 0V = idle/mark state)
D5 = 'inverted' RS232 output (+ve = idle/'mark' (1) state)
D6 : high for 500uS before, and during, serial byte output
On the TX
D4 = RS232 input
D5 : low = set 'true' input polarity, high = set 'inverted' input polarity
In all cases a single 9600 baud byte is received or sent.
The link is not transparent: on the TX end the 'tx on' pin can be used as a 'busy' output
Timeout: In modes 001 and 010, the receiver outputs the last received data for a given period,
before resetting D0-D7.
Any subsequent transmission will over-ride the current output state and reset the timer, even if the
timeout period has not expired.
The short period is set to be slightly longer than the time between consecutive transmit bursts in a
continuous mode.
The long timeout is usable with the randomised periodic transmission mode (101), as the 3 second
timeout is longer than the longest delay between transmissions in this mode.
Versions of the chip can be supplied with this period extended to suit customer requirements.
Radiometrix Ltd
CTA88 application board manual
page 6
CTA88 application boards: customisation options
Features
Standard
Options
Radio module
n/a
LMR/LMT(any), NiM2, BiM (any), CVR1 (5V), RDL2,
RF connector
Interface connectors
Address select
Channels
SMA
3.81mm 2 part
DIP switch
8
MCX, SMB, screw terminal
single part screw terminals
side operating DIP, ERG type slider, jumpers
partial build is possible (1,2,4 ..etc channels)
LEDs
Push buttons
fitted
fitted
no leds
no pushbuttons
only pushbuttons (no input circuits)
12V
7 – 24V
24V, and +5V only, versions are possible
n/a
Voltage
(rx)
(tx)
Ordering Information
Part Number
RF Power Output
(mW)
100
Channel Frequency
(MHz)
151.300
151.300
Australia
Australia
CTA88-151-SHX1T-12k5-MURS
CTA88-151-SHX1R-12k5-MURS
500
CH0:151.820 – CH4:154.600
CH0:151.820 – CH4:154.600
Canada, USA
Canada, USA
CTA88-151-LMR1-12k5-MURS
CTA88-151-LMR1-12k5-MURS
100
CH0:151.820 – CH2:151.940
CH0:151.820 – CH2:151.940
Canada, USA
Canada, USA
CTA88-433-LMT2
CTA88-433-LMR2
10
CH0:433.050 – CH69:434.775
CH0:433.050 – CH69:434.775
Europe
Europe
CTA88H-458-LMT2
CTA88-458-LMR2
500
CH0:458.525 – CH23:459.100
CH0:458.525 – CH23:459.100
UK
UK
CTA88-434.650-NiM2T
CTA88-434.650-NiM2R
10
434.650
434.650
Europe
Europe
CTA88-869-FPX3T
CTA88-869-FPX3R
400
CH0:869.450 – CH3:869.600
CH0:869.450 – CH3:869.600
Europe
Europe
CTA88-151.300-BiM1T
CTA88-151.300-CVR1
Radiometrix Ltd
CTA88 application board manual
Country
page 7
Figure 5: Schematic of CTA88 Encoder application board for BiM / LMT Transmitter
APPENDIX
Radiometrix Ltd
CTA88 application board manual
page 8
Figure 6: CTA88 BiM / LMR Receiver Decoder application board Schematic
Radiometrix Ltd
CTA88 application board manual
page 9
Figure 7: Schematic of CTA88H Encoder application board for AFS2 Amplifier, LMT2 Transmitter
Figure 8: CTA88H Encoder application board for AFS2 Amplifier, LMT2 Transmitter
Figure 9: Schematic of CTA88 Encoder application board for SHX1T / UHX1T / FPX33T Transmitter
Figure 10: CTA88 Encoder application board SHX1T / UHX1T / FPX3T Transmitter
Figure 11: Schematic of CTA88 Decoder application board for SHX1R / UHX1R / FPX3R Receiver
Figure 12: CTA88 Decoder application board for SHX1R / UHX1R / FPX3R Receiver
Radiometrix Ltd
Hartcran House
231 Kenton Lane
Harrow, Middlesex
HA3 8RP
ENGLAND
Tel: +44 (0) 20 8909 9595
Fax: +44 (0) 20 8909 2233
[email protected]
www.radiometrix.com
Copyright notice
This product data sheet is the original work and copyrighted property of Radiometrix Ltd. Reproduction in
whole or in part must give clear acknowledgement to the copyright owner.
Limitation of liability
The information furnished by Radiometrix Ltd is believed to be accurate and reliable. Radiometrix Ltd
reserves the right to make changes or improvements in the design, specification or manufacture of its
subassembly products without notice. Radiometrix Ltd does not assume any liability arising from the
application or use of any product or circuit described herein, nor for any infringements of patents or other
rights of third parties which may result from the use of its products. This data sheet neither states nor
implies warranty of any kind, including fitness for any particular application. These radio devices may be
subject to radio interference and may not function as intended if interference is present. We do NOT
recommend their use for life critical applications.
The Intrastat commodity code for all our modules is: 8542 6000
R&TTE Directive
After 7 April 2001 the manufacturer can only place finished product on the market under the provisions of
the R&TTE Directive. Equipment within the scope of the R&TTE Directive may demonstrate compliance
to the essential requirements specified in Article 3 of the Directive, as appropriate to the particular
equipment.
Further details are available on The Office of Communications (Ofcom) web site:
http://www.ofcom.org.uk/
Information Requests
Ofcom
Riverside House
2a Southwark Bridge Road
London SE1 9HA
Tel: +44 (0)300 123 3333 or 020 7981 3040
Fax: +44 (0)20 7981 3333
[email protected]
European Communications Office (ECO)
Peblingehus
Nansensgade 19
DK 1366 Copenhagen
Tel. +45 33896300
Fax +45 33896330
[email protected]
www.ero.dk
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