Dycon D4220 User manual

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Instructions for
D4220 Telemetry Radio
Receiver
Incorporating
D4221 8 Channel Receiver
Expander
Dycon Ltd
Tel: [phone]
Fax: [phone]
Cwm Cynon Business Park – Mountain Ash – CF45 4ER - UK
www.dyconsecurity.com

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TABLE OF CONTENTS
1 Introduction 3
1.1 Product Range
3
2 Installation 4
2.1 Board Removal 4
2.2 General Location Tips and Notes 4
2.3 User Part Identification Diagram 5
2.4 Mounting 6
2.5 Connections
6
3 Programming 7
3.1 Channel and Channel Positions Explained 7
3.2 Programming Display and Key Meanings 7
3.3 Relay Operational Modes 9
3.4 Quick Programming Guide 9
3.4.1 To Erase a Device 10
3.4.2 To Display RSS 11
3.4.3 To Turn Supervision On or Off 11
3.5 Factory Reset 11
3.6 Learning-in Devices 11
3.7 Adding a D4221 Channel Expander 12
3.8 Site Range Survey
12
4 D4220 User Guide 13
4.1 User Displays and Controls 13
4.2 Classes of Events and Alarms Explained 14
4.3 First to Alarm Display 14
4.4 Reset Button 14
4.5 Reset LED 14
4.6 Alarm and Alarm LED 15
4.7 Tamper and Tamper LED 15
4.8 Batt LED 15
4.9 Supervision LED 15
4.10 Display Decimal Point 15
4.11 Display Meanings
15
5 Transmitter Devices 16
5.1 Door Contact / Universal Transmitter 16
5.1.1 Learning-in 16
5.1.2 Test Jumper 16
5.1.3 Reed Disable Jumper 16
5.2 PIR Movement Detector 16
5.2.1 Learning-in 16
5.2.2 Test Jumper 16
5.3 Hand-held Controller 17
5.4 Smoke Detector 17
5.5 Water Detector 17

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Installation Manual
1. Introduction
The D4220 is a high performance narrowband general purpose telemetry receiver, particularly suited
to security applications. It has the following features:
- Externally powered by a 12V nominal power source
- 2 receiving channels expandable to 8 using a D4221 expander
- Auto-learn programming feature
- Eight different devices can be learnt-in per channel
- 64 devices can be learnt-in in total
- 9 modes of channel operation including a powerful control option
- RSSI display mode
- Individual changeover channel relay outputs
- Unit tamper output
- Separate radio device tamper output
- Separate radio fault output
- Remote reset input and front panel reset button
- Optional dipole and directional Yagi antennas on 5 metres of cable for exterior
mounting
- Narrowband ± 7.5KHz, 868.6375MHz operation
- Sensitivity -105dBm @ 20dBm S/N
- Frequency stability ±2.5PPM @ -20°C to 50°C typical range ~300M using standard
AntennaProgrammable supervision
The receiver can be used as a standalone unit or in conjunction with other control systems. The
display will show the radio system status and the first alarm or telemetry signal to be received.
1.1 Product Range
The receiver has a list of associated peripherals and accessories as listed below:
2 Channel Telemetry Radio Receiver D4220
8 Channel Telemetry Radio Receiver Expander D4221
PIR Movement Detector – Pet Tolerant D4809
PIR Movement Detector D4810
Door Contact / Universal Transmitter D4811
Hand-held Controller D4812

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Product Range (cont’d)
Smoke Detector D4814
Water Detector D4815
4 Channel Transmitter D4820
Dipole Aerial + 5m Lead + SMA Male Connector + Mounting Bracket D4831
Yagi Aerial + 5m Lead + SMA Connector D4832
2. Installation
2.1 Board Removal
The plastic lid is removed by unscrewing the two lid-securing screws. Remove the PCB by
gently pushing the plastic clips towards the centre of the unit while pulling on the receiver board
as shown:
Do not use the display as a grip when easing out the receiver board.
Choose a suitable mounting location. It is important to take the following precautions when locating
the unit to ensure maximum receiving range and radio performance.
2.2 General Location Tips and Notes
•Do not mount the unit within 3 metres of any source of interference – this includes:
oComputers, including computer peripherals, hubs, routers, printers…
oTelephone base stations e.g. telephones using DECT radio communications
oOther alarm peripherals, especially items with microprocessors

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General Location Tips and Notes (cont’d)
•The antenna must be vertical and at least 1.3 metres (chest height) above ground level
•Do not mount the unit in a metal cage or on a metal surface; if this is unavoidable, an external
antenna with an extension cable must be used
•Do not mount the unit in an outside environment
•The minimum range in a typical building is 30 metres. This can be substantially increased in
open indoor spaces or in areas with low RF absorption and reflections, especially where the unit
can be fitted high above ground level
•Try to mount the antenna as high as possible – this will generally increase reception range
•Line of sight range in outdoor open spaces is typically 250-300 metres – this can be extended to
1KM or more when well above ground level, and/or when using higher power transmitters and
suitable directional Yagi antennas
•Care should be taken if the radio is to work between floors of factories etc… The flooring will
normally be reinforced with steel and can cause attenuation
•If there is any doubt concerning the location, carry out a Site Range Survey as described later in
this document
2.3 User Part Identification Diagram

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2.4 Mounting
When the board is removed, use at least two of the screw slots in the back of the case to fix the case
to the mounting surface. Remove the knocknout chosen to make the cable entry; there are a total of
14 knockout slots situated in the 4 case corners.
The antenna should be fitted to the antenna socket before the board is clipped in. When fitting the
aerial, do not hold the aerial shaft, but use the brass fitting at the base of the aerial.
If an optional antenna with cable is fitted, the SMA plug should be fed through the antenna aperture
first and screwed into the board SMA connector.
When the board is fitted, adjust the back tamper screw by turning it clockwise until a click is heard,
signifying that the back tamper switch has closed.
2.5 Connections
RST
Reset input, used to reset the unit from a remote output active high, compatible with 5V and 12V
logic voltage signals. When activated, this input can reset the relay outputs the same as the front
panel reset button, but cannot clear the reset pending LED display or fault displays. It can clear
alarm displays.
12V
Nominal 12V, 10.5V to 15V, normal quiescent current 40mA, 220mA maximum, low voltage
detection between 10 to 10.5V.
A/T
Pair of clean contacts that open when:
1. Lid is removed
2. Unit is removed from mounting surface
3. When the expander lid or back tamper is violated (if fitted)
The contacts are closed when all the inputs are in a normal condition (no reset required).
CH1
Changeover relay clean contacts energised when the channel 1 activations are received. The
connections are common, normally open and normally closed. The contacts are rated at 24V 2A
maximum.
CH2
Changeover relay clean contacts energised when the channel 2 activations are received. The
connections are common, normally open and normally closed. The contacts are rated at 24V 2A
maximum.
TAMP
Changeover relay clean contacts energised when any radio transmitter tamper condition is sensed.
The tamper relay is de-energised either with a reset or when all the radio tampers are restored. A
supervision fault (detector periodic supervision report missing) for more than 4 hours will be
registered as a tamper. The connections are common, normally open and normally closed. The
contacts are rated at 24V 2A maximum.

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Connections (cont’d)
FAULT
Changeover relay clean contacts energised when any radio fault is detected. The connections are
common, normally open and normally closed. The contacts are rated at 24V 2A maximum. These
are:
•Radio supervision fault (detector periodic supervision report missing) for more than 20
minutes
•Radio device low battery
•Jamming detected for more than 30 seconds
Expansion Port
This connector is for use with the D4221 6-channel expander. Fitting this expander will give a total
of 8 channels.
3. Programming
The unit can be programmed using the internal push buttons and LED displays. Radio devices can
be learnt-in and relay operation can be programmed using this interface.
3.1 Channel and Channel Positions Explained
The unit has 2 channels expandable to 8 using the D4221. Each channel has eight positions from A
to H, thus relay CH1 would operate for devices 1A, 1B, 1C, 1D, 1E, 1F, 1G and 1H; relay CH2 would
operate for devices 2A, 2B, 2C, 2D, 2E, 2F, 2G and 2H...
Only one radio device can be learnt-in to any one radio device position A to H. Eight radio devices
can be learnt-in to any one radio channel 1 to 8.
Each radio channel corresponds to a channel relay numbered from CH1 to CH8.
3.2 Programming Display and Key Meanings
The display and display LEDs have a dual purpose: they display user information when in normal
working mode and programming information when in programming mode. The key and LED
programming functions are marked on the printed circuit board, revealed when the lid is removed.

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Programming Display and Key Meanings (cont’d)
LED
DISPLAYS DESCRIPTIONS
RESET Lit to indicate that supervision can be selected on and off
CHAN Lit to indicate that radio devices can be added or deleted from channel positions
RELAY Lit to indicate that the relay operational mode can be selected
RSS Lit when received signal strength indication mode is available
PROG Lit when unit is in programming mode
Display
Decimal
Point
1. Indicates if the channel position is occupied by a device (already learnt-
in)
2. Indicates if a channel relay operational mode is already programmed
3. Indicates supervision is selected
Numeric
Display
1. Indicates channel relay
2. Shows RSS level
Alpha
Display
1. Indicates radio device position in selected channel
2. Indicates relay operational mode type
KEY DESCRIPTIONS
SELECT 1. Used to enter channels and channel positions
2. Used to enter functions
STEP 1. Moves between channels and channel positions
2. Moves between functions
CLEAR 1. Used to quit out of programming modes
2. Used to clear radio devices from channel positions

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3.3 Relay Operational Modes
Each channel can be programmed for any one of 9 different operational modes.
DISPLAY Relay Option Descriptions
A Pulsed: the relay pulses for 2 secs when triggered by a radio device (default)
B
Follow: the relay follows the status of door contact and 4 channel transmitter
radio devices, on when the device input contacts are open and off when closed.
Will not work corrected with momentary triggered transmitters such as push
button devices and PIRs
C Toggle: the relay is toggled on and off by radio device transmissions
D Latched: the relay will latch when triggered by any radio device
E Control: the relay is latched on by devices A to D and latched off by E to H
F Pulse inverted: same as option A but the relay is normally energised
G Follow inverted: same as option B but the relay is normally energised
H Toggle inverted: same as option C but the relay is normally energised
I Latch inverted: same as option D but the relay is normally energised
The control mode allows switching on and off of the channel relay to be controlled by two different
devices, e.g. the relay could be switched on by a door contact operating when a door opens, and
switched off when movement is detected by a PIR. It can also be turned on by pressing A on a
hand-held transmitter and turned off by pressing B.
A B C D E F G H
RELAY ON RELAY OFF
3.4 Quick Programming Guide
The programming sequence below describes how to learn-in a radio device and program the
channel relay for pulsed operation:
1. Remove lid
•The lid has to be removed before programming is allowed
•The RELAY (tamper) and display decimal point LEDs will be on
2. Press the STEP key and the PROG and CHAN LEDs will light, the display decimal
point will go out
The unit is now in programming mode, indicated by the PROG LED.
The step key is now used to step through all the programming modes shown by the LEDs.
If the unit is left in programming mode for more than 5 minutes, it will beep and automatically quit
programming.

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Quick Programming Guide (cont’d)
3. Using the STEP key make sure that the CHAN LED is lit and press SELECT to enter
the channel learn-in mode, 1 will be shown on the display
•Pressing the STEP key will step through the available channels
•Channels 1 and 2 will only be accessible on the standard unit, channels 1 to 8 will be available
when fitted with the D4221 expander
4. Press SELECT to choose channel 1, channel position A will be shown
•Channel positions A to G can be stepped through using the STEP key
5. Press SELECT to choose A, the display will now flash an alternate 1 and A indicating
Channel 1, Position A
6. Press the learn button on the device to be learnt in
•The unit will give a double beep and the decimal point will light indicating that the channel
position is occupied
•If the same transmitter is learnt-in to two different channel positions, two sets of double beeps
will be heard, warning the user that the same device is in two channels
7. Press the CLEAR key 3 times to quit the channel position programming, the display
will be blank and the CHAN and PROG LED will be lit
8. Using the STEP key, choose the RELAY LED and press SELECT, 1 will be displayed,
press select again and 1 and A will alternatively flash
•When the relay number is displayed, the channel numbers 1 to 8 (if available) can be stepped
through using the STEP key
•A indicates the 2 second pulsed relay option
9. Press SELECT to choose A and the unit will double beep, the unit will alternatively
flash 1 and A with the decimal point indicating that relay option 1 (pulsed) has been
chosen for channel 1
•When in this mode, options A to I can be stepped through using the STEP key
10. Press the CLEAR key repeatedly to quit programming mode - when the unit quits, the
programming LED will extinguish and the display decimal point will light
11. The unit is now programmed with a device in channel 1, position A, with pulsed relay
operation
3.4.1 To Erase a Device
Occasionally, it will be necessary to remove a radio device from the system. The procedure below
describes how it is done:
1. Enter programming mode and step to the CHAN LED using the STEP key
2. Using the STEP and SELECT keys to choose the device to be erased, press the
CLEAR key until beeps are heard and the decimal point is extinguished (~2 secs)
•The channel position to be cleared will be displayed as an alternatively flashing channel number
and position i.e. 2C, 2C etc...
3. The device is now erased and the unoccupied position is indicated by an alternatively
flashing channel position display with an extinguished decimal point

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3.4.2 To Display RSS
The RSS is the receiver signal strength. It is displayed from 0 to 9 where 9 is maximum strength.
The receiver will operate reliably with signals of strength 2 or greater.
1. Enter programming mode and using the STEP key through the LEDs until the RSS
and PROG LEDs are lit
2. Press SELECT key to enter the mode and using STEP and SELECT keys, choose the
channel position to be displayed and press SELECT
•The last RSS value to be received will be shown as a sequence of channel number, position
and RSS value i.e. 3D7 (pause) 3D7 (pause) etc...
•The display will be overwritten with any other signal received while in the RSS display mode
3. The RSS display mode can be quit by pressing clea
r
3.4.3 To Turn Supervision On and Off
Supervision is used to periodically test that all system radio devices are working and can be
received. If there are no signals received in 20 minutes from any individual radio device, a radio fault
will be generated; if no signals are received for 2 hours, a radio tamper will be generated.
1. Enter programming mode and step to the RESET LED using the STEP key
2. Press SELECT and an S will be shown on the display
3. Press STEP to toggle the supervision on and off, the decimal point will light when the
supervision is on
4. Press SELECT to confirm the choice and quit by pressing CLEAR
3.5Factory Reset
This will remove all programming in the Receiver and test the EEPROM.
•Remove power from the Receiver
•Press the STEP button and hold it
•With the STEP button still held, reconnect the 12 volt supply
NOTE: all previously programmed data will be lost
If the test fails, the Receiver will produce 5 short beeps.
When the test is successful, the Receiver will produce 2 short beeps followed by one long beep.
The unit is now powered up and ready for use.
3.6To Learn in Devices
Radio devices can be learnt-in by following the instructions in the Quick Programming Guide.

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3.7Adding a D4221 Channel Expander
The D4221 expander is supplied with a 9-way cable loom for connecting to a D4220 receiver. The
expander should be ideally fitted level with and to the left hand side of the D4221 receiver as shown
below:
The unit is fixed as described earlier in Mounting, ensure that the polarised cable is plugged in as
shown, with the black wire at the bottom and the white wire at the top.
The expander will be auto-detected when power is applied and channels 1 to 8 will be available in
the programming modes.
When the lids are replaced, tuck any spare cable into the D4221 box and dress the wires so that
they are placed where the lid plastic is thinner, it is not necessary to remove any plastic knockouts.
The expander will take little quiescent current when inactive, and about 35mA per channel when
active. When all 8 channels are active, the expander will consume a maximum of 280mA.
3.8Site Range Survey
To ensure that the transmitters can be reliably received, a site survey should be conducted. The
receiver unit can be placed temporarily in the chosen location and likewise, the transmitters placed
temporarily in their chosen positions.
Ensure that the devices to be range-tested are already learnt-in. With the receiver in the RSS
display mode, press the test buttons on the static transmitters or activation buttons on the portable
devices to generate test transmissions. Note the RSS level indication; to make sure that the
transmitter will operate reliably, the signal strength should be strength 2 or greater.
If a general indication of a site’s suitability for radio is needed, it is recommended that a test receiver
unit be used in conjunction with a hand-held remote controller. The remote controller has got the
least range of all the radio devices; if reception can be confirmed using one, reliable communication
with other devices is to be expected.
Where long-range links using dipole or directional antennas are surveyed, make sure that the device
to be used is learnt-in at short range before testing.
Care has to be taken when testing very long range links using directional antennas at both ends.
When using the 4 channel transmitter, the position and alignment of the antennas is critical.

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4. D4220 User Guide
4.1 User Displays and Controls
The user display consists of 5 LEDs and a starburst LED display that can show alphanumeric
characters, with a single reset button as shown below:
The front panel local reset button can reset the event displays and relay outputs; the remote reset
can only reset the relays.

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4.2 Classes of Events and Alarms Explained
There are three classes of events, summarised as:
Alarms / Telemetry Tampers Faults
1. Door contact magnet removed
from the reed (e.g. door
opening)
1. Door contact removed
from its mounting surface
or cover removed
1. Radio device low
battery
2. Door contact alarm loop opened 2. PIR opened 2. Radio jamming
2
3. PIR detector sensing movement 3. 4-channel transmitter
removed from its
mounting surface or lid
removed
3. Supervision
1
fault
4. Any button pressed on the
remote hand-held controller 4. Supervision
1
tamper
5. Any alarm loop opened on the 4
channel transmitter 5. D4220 receiver unit removed from its
mounting surface or lid
removed
6. Fire alarm from smoke detector 6. D4221 expander unit
removed from its
mounting surface or lid
removed
7. Water alarm from water detector
NOTES:
1. Supervision is where radio detectors send a periodic signal to check the radio system
integrity. If no signals are received within 20 minutes, a radio fault is registered. If no
signals are received for 2 hours, a radio tamper is registered.
2. Radio jamming or interference is registered if a radio signal is received continuously for 30
seconds or more without any sensible information being received.
4.3 First to Alarm Display (FTA)
The First to Alarm display (FTA) is used to indicate the first area or device to detect an alarm. Other
alarms will not overwrite the display memory and it will be displayed until locally reset. Multiple faults
can be displayed, but will always be overwritten by a FTA. If faults and alarms are detected, the FTA
will be shown and when reset (multiple) faults will then be displayed.
4.4 Reset Button
Pressing the reset button on the front panel resets the unit. If there are alarms and faults, the first
display shown steadily will be the FTA. Pressing the reset button will clear the FTA. Pressing the
reset button will clear the FTA display, allowing the display of any faults. If there are multiple fault
events, the display will scroll through them, with a slight pause between each event allowing the user
to note them. When all the alarm and fault displays are cleared, a final key press will clear the reset
pending LED. The remote reset input can only reset the relays and FTA displays: it cannot reset fault
displays and the reset LED.
4.5 Reset LED
This LED indicates when a user reset is required to either clear the display or reset the output relays.
The reset LED can only be reset from the front panel and not remotely. This is to indicate locally that
there has been a past alarm registered although the unit has been remotely reset without the display
being seen.
Pressing the reset button again when a subsequent key press has cleared the display, will extinguish
the reset LED.

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4.6 Alarm and Alarm LED
The LED indicates when alarm/telemetry event signals are received. The alarm relay can be reset
locally and remotely, or be controlled by the radio devices; the alarm display can only be reset
locally.
4.7 Tamper and Tamper LED
The tamper LED indicates when a system tamper has been detected; the tamper relay will remain
energised until reset or when the tamper is restored to normal. The tamper relay can be reset locally
and remotely; the tamper display can only be reset locally. A lit tamper LED without an associated
alphanumeric display indicates a unit tamper.
4.8 Batt LED
The batt LED displays a low battery condition in the system; the fault relay will remain energised until
reset or when the low battery condition is restored to normal. The fault relay can be reset locally and
remotely; the low battery display can only be reset locally. A lit bat LED without an associated
alphanumeric display indicates unit low battery.
4.9 Supervision LED
The supervision LED indicates when a supervision fault has been detected; the fault relay will remain
energised until reset or when supervision is restored to normal. The fault relay can be reset locally
or remotely; the supervision display can only be reset locally.
4.10 Display Decimal Point
Indicates that the unit is working normally and the power is on.
4.11 Display Meanings
Alphanumeric
display
Reset Alarm Tamper Batt Supervision
Meaning
3-C-3-C * * Alarm on channel 3, position C
2-F-T-2-F-T * * Tamper on channel 2, position F
2-F-T- -2-F-T * Previous tamper on channel 2, position F
3-
A
-L—3-
A
-L * * Low battery on channel 3, position A
3-A-L—3-A-L * Previous low battery on channel 3, position A
6-H-S—6-H-S * *
Supervision fault on channel 6, position H (device missing for 20
minutes or more)
6-H-S—6-H-S * * *
Supervision tamper on channel 6, position H (device missing for 2
hours or more)
6-H-S—6-H-S * Previous supervision fault or tamper on channel 6, position H
J * Radio jamming or interference
-- * Unit tamper on D4220 receiver or D4221 expander

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5. Transmitter Devices
This section is not intended to be an in-depth guide to the radio transmitter devices, but an aid to get
a system learnt-in and running. Refer to the D48xx Series Installation Manual.
5.1 Door Contact / Universal Transmitter
The jumpers are used to select various options. When they are not required to be “on” shorting the
jumper pins, they should be “parked” on one pin as shown so they do not get lost:
5.1.1 Learning-in
The Door Contact is learnt-in by pressing the test button. This test button can also be used to test
the device when the receiver is in RSS display test mode.
5.1.2 Test Jumper
When in the On position, the LED will flash every time the door contact transmits, allowing the
alignment of the door contact or testing the alarm and tamper loop. Normally this jumper should be
left in the parked position. In the Parked position, the LED will only flash during low-battery and
tamper transmissions.
5.1.3 Reed Disable Jumper
Put in the On position to disable the magnetic reed switch. Operation will be with the wired alarm
and tamper loops only. Normally this jumper is left in the parked position.
5.2 PIR Movement Detector (and Pet Tolerant PIR)
5.2.1 Learning-in
The PIR is learnt-in by pressing the test button. It is on the inside of the unit and adjacent to the
tamper switch. This test button can also be used to test the device when the receiver is in RSS
display test mode.
5.2.2 Test Jumper
When in the On position, the JP1 jumper enables the LED to flash every time the PIR transmits,
allowing the testing of movement detection pattern and range. When in test mode the PIR sleep
time is shortened to about three seconds. Normally this jumper should be left in the parked position
to conserve battery life where the PIR sleep time is set at one minute.

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5.3 Hand-held Transmitter
Each channel from A to D is learnt-in by pressing the associated button.
5.4Smoke Detector
The smoke detector is learnt-in by pressing the external test button.
5.5 Water Detector
The water detector is learnt-in by pressing the internal test button.