TECHNICAL MANUAL
SMART-CALLER
“RDU- REMOTE TRIGGER WIRELESS RECEIVER"
Issue 5, September 2015
Replaces issue 4 January 2014
COPYRIGHT ©
Smart-Caller Pty Ltd
PO Box 78
Mentone 3194
AUSTRALIA
Phone
03 9588 0833
Fax
03 9588 0933
Email
[email protected]
www.smartcaller.com.au
1.
INTRODUCTION
The wireless receiver-decoder unit (RDU)
provides a relay switched output in
response to wireless transmissions in the
304MHz band. The unit will respond to
Smart-Caller and standard NESS format,
with only standard alarm and restoral
events applicable to its operation. All other
event types will be ignored.
The unit provides for selection of different
operating modes, and for some of the
modes, the maximum period that the relay
remains active may also be selected.
As with the basic RDU-01 This unit also
allows the 304Mhz wireless pendant or
any other wireless sensor or device to
trigger bedside (or other) call-point.
For aged Care Facilities that do not use
Smart-Caller call-points (which also
include a wireless receiver facility) it is
particularly useful to simply plug into the
call-point either directly or via a dual
adaptor lead in order to allow residents
who are inclined to fall to carry or wear a
personal emergency transmitter (PET).
A pushbutton is also provided for manual
cancel of an active relay output. A LED
indicator on the unit shows when the relay
is active - a slow flashing cadence
indicates this condition.
2.
VARIOUS MODELS
2.1
RDU-01
A Fixed location wireless receiver 304Mhz
(or 433Mhz) for Strobe/Siren or similar
remote triggering application providing
normally closed and normally open relay
contacts.
Irrespective of it being
used to control a
strobe light from an
HP4 BluePhone or
Smart
Dialler
this
product is suitable for
any application where
it is required to activate
a closing or opening
contact via a wireless RDU-01 RECEIVER
pendant or other form of
compatible transmitter or sensor and to
have either manual or timed unlatching of
that relay.
Being a receiving device it requires a
constant 12v dc supply. It may be surface
mounted using a standard 35mm
mounting block or recessed within the
plaster wall. (See below)
2.2
RDU-03
This is the alternative fixed location
Wireless Receiver with programmable
relay including cord with 6.3mm Plug &
Plug Pack.
RDU-03 RECEIVER
RDU-03 can similarly be used with other
wireless transmitter devices such as a
PIR, Door Reed, Bed-Wet (Enuresis)
Sensor or other device where the
portability of wireless is desired.
It includes a plug-pack jack (and plugpack) in case power cannot be supplied
from behind the call-point. The standard
version includes a fully enclosed 45mm
deep box.
3.
OPERATING MODES
Irrespective of model any one of three
different operating modes may be
selected. The choice depends on the
operation of the device that initiates the
wireless transmission. A fourth temporary
mode is provided to allow an off-air teach
process during set up of the RDU.
The temporary mode should be disabled
having taught the wireless code into the
RDU’s wireless memory slot.
3.1
Normal mode:
In the normal situation the controlling
device would be a 304Mhz wireless
transmitter
of
correct
Smart-Caller
signalling protocol. For optimum flexibility it
would also be capable of generating both
a normal alarm and a cancel command.
In this mode the RDU’s internal relay is
activated by the alarm event. The relay
may be de-activated by receipt of a cancel
command from the same transmitter (or a
cancel command from an alternative
transmitter having the same identification
code).
The relay may also be cancelled by
someone pressing the RDU’s front panel
cancel button, or the relay activation may
be cancelled by a selected relay latching
period timeout.
In the event of manual cancel or relay
timeout occurring, the next Alarm event
will re-activate the relay.
3.2 Momentary latch mode:
(most commonly used configuration)
By leaving the Octal/BCD rotary selector
in its default [0] position and reverting
dipswitch 2 to its ON position the relay will
operate as a momentary latching function
providing a latching interval of 500mSec
(half a second).
This is the preferred configuration when
being used to trigger a bedside call-point
perhaps via a wireless pendant or wrist
worn personal transmitter. This is because
the call-point would go into alarm and
would further latch the call until the
carer/nurse cancelled the call from the
call-point’s cancel button. In this situation
the RDU’s cancel button has no significant
function.
3.3 Setting ‘Latched” clear down
timings
For any setting other than [0] of the
Octal/BCD switch (1– 7), the normal autocancel period of 90 seconds would apply.
In this mode the controlling (wireless
triggering) device would need to generate
Alarm events at nominally 60-second
intervals, for the relay to activate, and
remain activated.
The relay will automatically de-activate
after about 90 seconds should the alarm
events cease.
The relay may also be de-activated by
manual cancel, or should there be receipt
of a cancel call wireless event.
In the event of a manual cancel, the
receipt of further alarm events within the
90 second period will not re-activate the
relay, but will cause a further 90 second
timeout period to commence.
Only when the timeout period has expired
will the relay be capable of re-activation.
3.4
Output toggle mode:
The controlling device would generate
Alarm events at both the commencement
of the relay activation period, and at the
termination of the period, to provide a
toggling action.
A missed or corrupt received wireless
event will potentially cause problems with
this mode that would not be selfcorrecting. The use of the maximum relay
active period timer may ultimately provide
correction.
The relay may also be de-activated by
manual cancel, should there be receipt
of a cancel call wireless event, or relay
active period timeout, if enabled.
For manual cancel, the relay active
period timer will continue to run until
timeout. If a further standard alarm event
is received within the timeout period, this
will not re-activate the relay, but will
terminate the timer interval.
If a standard alarm event is received
after timeout has occurred (or the timer
operation terminated), the relay will be reactivated.
In the event that the relay active period
timer is disabled, and the relay is currently
active, it will remain active until the next
standard alarm event. However, if deactivation has occurred with a manual
cancel, the next wireless event will be
ignored.
3.5 Wireless teach mode explained
Each wireless transmission string
comprises 24 bits of information (a 24-bit
binary string) and the equipment
calculates a useful 5-digit hexadecimal
value to represent this string. This 5-digit
code is therefore always used as the
Ident code applicable to the taught
transmitter.
This
‘Wireless
Teach’
mode
is
temporarily selected whilst setting up the
unit, and allows off-air teach of the
particular
transmitter’s
codeword
address used by the controlling
transmitting device.
After this wireless teaching procedure
has been completed this teach mode
must be switched off in order to allow the
RDU’s selected operating mode to take
control.
Non-volatile storage is used for the
wireless identification address and it is
important to note that the storage is
limited to a single address value, and any
further teach operation will simply overwrite the previously stored value.
Should it be required that multiple devices
are required to trigger the RDU it is then
necessary to arrange that each such
wireless transmitting device be delivered
with the RDU or, for pre-existing RDU’s
the 5-digit IDENT code that has been
taught into the RDU be advised in order to
duplicate that code for such additional
wireless transmitting devices.
Example. Client wishes to provide a
wireless pendant to the Resident and to
use a wireless call-point from the shower
recess to the bedside call-point due to
problem of cabling within the tiled shower
recess.
4.
HOW TO TEACH THE WIRELESS
TRANSMITTER CODE
Using the blue 4-way dipswitch assembly
ensure that switch No 4 is in the “ON”
position. Switch 4 should never be off with
an RDU because switch 4 enables the
data from the wireless receiver.
Having applied power to the RDU now
commence to teach the code as follows:
Set switch positions 1 and 2 to the
‘ON’ position.

Momentarily press the cancel button
(the LED will light up for 16 seconds)

Trigger the transmitter device (the
LED will flash twice and turn off to
confirm that the code has been taught.

Return switches 1 and 2 to ‘OFF’
positions. (This is essential in order to
allow the RDU to function normally).

Test the RDU by triggering the
transmitter which will latch the relay in
whatever mode the relay has been
programmed to operate.
WARNINGS
If the 16 seconds expires without having
received a transmitter code the LED will
turn off and the previously stored address
value will remain unaltered.
Teach the code as soon as possible
otherwise a wireless transmission from
elsewhere within range may have been
taught.
5.
DIP SWITCH USAGE
The product includes both a 4-switch
dipswitch assembly to determine the mode
of operation and a 10-position rotary switch
to provide additional operating options.
The dipswitch in addition to allowing the
temporary mode for teaching, also allows
the method of operation of the RDU’s relay
whereas the rotary switch provides the
relay timing options.
LATCHING MODE
SWITCH
SWITCH
SWITCH
SWITCH
1 OFF
2 OFF
3 OFF
4 ON
MOMENTARY MODE
SWITCH
SWITCH
SWITCH
SWITCH
1 OFF
2 ON
3 OFF
4 ON
AUTO CANCEL MODE (90Sec unlatch)
SWITCH 1
OFF
SWITCH 2
ON
SWITCH 3
OFF (Steady) ON (Pulsing)
SWITCH 4
ON
OUTPUT TOGGLE (Call toggle relay)
SWITCH 1
ON
SWITCH 2
OFF
SWITCH 3
OFF (Steady) ON (Pulsing)
SWITCH 4
ON
WIRELESS TEACH (Temporary Mode)
SWITCH 1
ON
SWITCH 2
ON
SWITCH 3
ON (or OFF)
SWITCH 4
ON
Note
Relay ‘pulsing cadence’ will be at same
rate as the LED cadence.
A current limiting resistor is included to
provide nominally 25mA to a LED
connected to a 12 volt DC supply, and
using "low side" switching.
6.
SELECTOR SWITCH USAGE
The 10-position (BCD) switch provides for
selection of maximum active duration for
the relay being applicable to normal and
output toggle modes only.
The terminal block connections for the DC
supply requires a 12 volt nominal DC
source.
Only the first eight positions (0-7) are
used.
The allowable input voltage range is 1014 volts. The nominal current draw is
60mA, not including any external load. In
addition to the relay connections, a
"LED" connection operates in tandem
with the internal LED of the unit, always
giving a cadence output when active.
The auto-cancel and wireless teach
modes both have fixed timeout duration,
and the selector switch does nothing.
The following timeout periods shown in
Table 2 below may be selected:
For position 0, with no timeout, the relay
output will remain active until a cancel
condition occurs, dependent on the mode
of operation.
7.
A 12v plug-pack is supplied with the model
RDU-03 where a power socket is provided.
8.
MODELS/PART NUMBERS
WARNING
Some NESS wireless transmitting
devices do not currently suit the RDU
decoding facility.
RDU-00 Standard
mounting block.
It is therefore necessary to contact
Smart-Caller prior to purchasing
NESS wireless accessories.
RDU-02 As 00 version but with 35mm
mounting block & 12v dc socket. (Plugpack excluded)
without
RDU-01 As 00 version but with 13mm
mounting block to allow surface mount
RDU-03 As RDU-02 version but with a
1.2M white cord with right angled 6.3mm
jack for connection to call-point socket. It
includes a plug-pack power supply.
EXTERNAL CONNECTIONS
The unit has a rear terminal block for the
external connections required.
Note.
See our range of double and triple adaptor
leads where multiple connections to a callpoint are required.
The relay provides a changeover contact
type, and all three connections appear at
the terminal block.
For a resistive load, the contact current
should not exceed 2A DC for load
voltages less than 50 volts.
Table 2
version
WARNING
The RDU must not be used to switch
AC mains voltages.
Timeout Selection
The following timeout periods may be selected via the rotary octal/BCD switch.
Position
0
1
2
3
4
5
6
7
Timeout
Period in
minutes
None
1
2
5
10
20
30
60
Note*
Select [0] in the separate rotary octal/BCD switch if a momentary (500mSec) short-term
latch is required.