SMAY SR-300 User manual

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ver.
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Operation and
Maintenance Manual
SR-300
Smoke Extraction
Control Panel

Version 1.40
Release date: 17.02.2023 year
Page 1 of 74
Operation and Maintenance Manual
SR-300
Version 1.4 as of 04/2022
SMAY reserves the right to modify this document.
1. Introduction ........................................................................................................................................2
2. General Rules of Safe Use .....................................................................................................................3
3. Legal Regulations.................................................................................................................................4
3.1. Marketing authorisation ....................................................................................................................4
4. Concept of the SR-300 RYS Smoke Extraction Control Panel......................................................................4
4.1. Intended use of the SR-300 RYS smoke extraction control panel ............................................................4
4.2. SR-300 RYS smoke extraction control panel technical data ....................................................................4
4.3. Basic information .............................................................................................................................5
4.4. SR-300 RYS extraction control panel series types .................................................................................6
4.5. Inputs/outputs used depend on the type of the SR-300 RYS ..................................................................8
5. Technical Data...................................................................................................................................11
5.1. Motherboard view...........................................................................................................................11
5.2. Motherboard description.................................................................................................................. 12
5.3. Technical parameters......................................................................................................................14
6. SR-300 RYS Smoke Extraction Control Panel –Additional Cards...............................................................16
6.1. Input/output card –Additional card 1 ...............................................................................................16
6.2. Manual call point card –Additional card 2..........................................................................................17
6.3. Smoke detector card –Additional card 3 ...........................................................................................19
6.4. Beacon/sounder card –Additional card 4........................................................................................... 20
6.5. Weather station card –Additional card 5 ...........................................................................................21
7. SR-300 RYS Smoke Extraction Control Panel Configuration......................................................................23
8. Devices Working with the SR-300 RYS Smoke Extraction Control Panel.....................................................27
8.1. Smoke detectors ............................................................................................................................27
8.1.1. OSD23 smoke detector ...................................................................................................................28
8.1.2. OSD63 smoke detector ...................................................................................................................29
8.1.3. DOR40 smoke detector ...................................................................................................................32
8.2. MCP Manual call points....................................................................................................................34
8.2.1. RPO PO-61, PO-62 and PO-63 manual call points. ..............................................................................34
8.2.2. MCP RT45, RT45-LT and RT45-ST manual call points. .........................................................................41
8.3. LT-AP ventilation button..................................................................................................................48
8.4. Smoke vent and door actuators .......................................................................................................50
8.5. Sounders/Beacons..........................................................................................................................51
8.6. Electric door strike .........................................................................................................................54
9. Devices Supporting the SR-300 RYS Smoke Extraction Control Panel........................................................55
9.1. A-SO rotary actuator adapter...........................................................................................................55
9.2. A-ED electric door strike adapter......................................................................................................56
9.3. A-SP weather station adapter ..........................................................................................................58
9.4. Resistors simulating devices cooperating with the SR-300 RYS smoke extraction control panel. ...............59
10. SR-300 RYS Smoke Extraction Control Panel Housing .............................................................................60

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10.1. SR-300 RYS smoke extraction control panel housing signalling ............................................................60
10.2. IP protection and overall dimensions of various control panel housing...................................................60
10.3. Batteries .......................................................................................................................................63
10.4. Mounting of the control panel ..........................................................................................................63
11. Troubleshooting .................................................................................................................................65
12. Installation and Commissioning Instructions for the SR-300 RYS Smoke Extraction Control Panel.................67
12.1. Power supply connection .................................................................................................................68
13. Instructions for On-Site Post-Assembly and Installation Testing ...............................................................69
13.1. Checking the operating status signals ...............................................................................................70
13.2. Power supply check ........................................................................................................................70
13.3. Function and configuration check .....................................................................................................70
14. Packing, Transport and Storage ...........................................................................................................70
14.1. Packaging .....................................................................................................................................70
14.2. Transport ......................................................................................................................................70
14.3. Storage.........................................................................................................................................71
15. Operation and Maintenance .................................................................................................................71
16. Impact on the Environment .................................................................................................................71
17. General Warranty Terms and Conditions ...............................................................................................71
1. Introduction
Detailed familiarisation with these operating instructions for the SR-300 RYS smoke
control panel in accordance with the descriptions given therein and observance of all safety
conditions form the basis for correct and safe operation of the unit.
It is assumed that work relating to transport, connection of plant associated with the
appliance as well as maintenance and repair is carried out by qualified personnel or is
supervised by authorised persons.
Qualified personnel are understood to be persons who, in view of their training,
professional experience of electronic equipment and knowledge of the relevant standards,
documentation and regulations relating to safety and working conditions, have been authorised
to carry out the necessary maintenance work on the basis of training protocols and are able to
diagnose and eliminate potential hazards.
The following operating instructions provide information on the application,
construction, assembly, use and maintenance of the SR-300 RYS smoke control panel. If the
units are operated as intended, this manual and other documents included with the unit
contain the instructions necessary for qualified personnel.
NOTE:
The manufacturer reserves the right to make changes to this instruction
manual.

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Operation and Maintenance Manual
SR-300
2. General Rules of Safe Use
The SR-300 RYS smoke control unit was designed and built to comply with the
standard:
- prEN –12101-9:2011 Smoke and heat control systems –Part 9: Control panels
In designing and building the SR-300 RYS smoke control panel, SMAY used the latest
technology to guarantees the highest level of safety.
SMAY carries out continuous production supervision, which directly translates into
a high level of quality of the products offered, including the panels, their usability and their
exceptional service life. Despite this, devices can be dangerous if not properly used by
unqualified personnel or used in a manner inconsistent with its intended use.
NOTE:
Installation of the unit, connecting the associated systems, launching,
operation and maintenance shall be performed in accordance with directives and
legal regulations in force in the country where the unit is being installed.
The SR-300 RYS smoke extraction control panel should be used in compliance
with the instructions for use and within the technical parameters given herein.
SMAY authorised service points should be contacted for help as needed during
assembly, installation, commissioning, repairs and maintenance.
The documentation shall always be kept near the device to be easily accessible
for the service personnel.

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Operation and Maintenance Manual
SR-300
3. Legal Regulations
3.1. Marketing authorisation
The SR-300 RYS smoke extraction control panels were admitted to the market under
documents issued by the Scientific and Research Centre for Fire Protection –National Research
Institute in Józefów:
1. National Technical Assessment No: CNBOP-PIB-KOT-2019/0115-1009
2. National Certificate of Constancy of Performance: 063-UWB-0192
3. Certificate of Constancy of Performance: 1438-CPR-0667
4. Approval Certificate: 3779/2019
The SR-300 RYS smoke extraction control panel was awarded the "B" construction mark
by the manufacturer. Its compliance with the National Technical Assessment has been
confirmed by the National Declaration of Constancy of Performance No: 017-B-2019
The SR-300 RYS smoke extraction control panel was assigned by the manufacturer with
the mark of the approval body of the Scientific and Research Centre for Fire Protection –
National Research Institute in Józefów (CNBOP-PIB).
4. Concept of the SR-300 RYS Smoke Extraction Control Panel
4.1. Intended use of the SR-300 RYS smoke extraction control panel
The SR-300 RYS smoke extraction control panel is designed for the control, supply and
monitoring of devices in smoke ventilation systems for buildings. It also provides the
ventilation function using a weather station.
The control unit can transmit fire alarm signals to devices or systems that are
responsible for fire safety on the premises. It is possible to use the control panel in the
following structures:
-Residential buildings
-Public buildings
-Factories
-Warehouses
The RYS control panel makes it possible to connect and monitor lines, with the following items
connected: smoke sensors for automatic smoke (smoke and heat) detection, as well as manual
call points for the activation of an appropriate control and monitoring procedure for firefighting
devices by a person who detects fire.
4.2. SR-300 RYS smoke extraction control panel technical data
The control unit can receive the initiating signals from the Fire AlarmSystem and other
fire safety systems or can carry out its control and monitoring functions based on its own
detection of the fire hazard by means of smoke (smoke and heat) sensors and manual call
points placed on the SR-300 RYS Smoke control panel monitoring lines.
When a fire hazard is detected, the exhaust element located in the roof/upper part of the
stairwell and the air compensation opening (door, air intake) are opened. Optionally, the
acoustic/optical fire alarm may be activated. Optionally, if the building is fitted with electric door
holders leading from the individual storeys to the stairwell, the doors are released and closed.

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SR-300
The control unit is able to perform the following functions:
-Detection of fire hazards via smoke and/or heat sensors
-Manual activation by means of manual call points
-Opening of the exhaust component
-Optical and acoustic sounder in the event of a fire hazard
-Ventilation of the stairwell when occupied
-Release of the door opener and door opening
-Communication with the fire alarm system, the system integrating fire protection
equipment (SIUP), the BMS and the access control system (control signals, faults
and operating acknowledgements)
4.3. Basic information
The SR-300 RYS smoke exhaust control panel is used to receive and process fire alarm
signals from the fire alarm system, automatic smoke and heat sensors, manual call points, as
well as to control and power executive elements of the staircase smoke exhaust system such
as door actuators, exhaust element actuators, air intake actuators and devices cooperating
with the SR-300 RYS smoke exhaust control panel, such as acoustic, optical and acoustic-
optical sounders or electric strikers. The SR-300 RYS smoke exhaust control panel can
cooperate with ventilation buttons and control ventilation with a weather station (optional
feature).
The control panel is manufactured in accordance with and meets the design requirements of
prEN 12101-9.
The integrated electrical supply for the control panel is made and certified in accordance with
EN 12101-10.
Selectable group configurations: up to four smoke extraction groups and up to four ventilation
groups.
The SR-300 smoke exhaust control panel is produced in 12 types, which differ in terms of the
number of available inputs/outputs and power. For a description of each type, see subsection
4.4 of this manual. Each of the 12 types of control unit can be extended with optional
additional cards, which are described in section 6 of this manual.
The maximum version of the control unit (SR-300 4.48 version without additional cards)
has the following inputs/outputs:
•Power output –intended for use with 24 V DC-powered devices (48 W maximum)
•Actuator outputs –four outputs designed to work with 24 V DC electric actuators with
variable polarity
•Electric door strike outputs –two voltage outputs intended to cooperate with door strikers
•Digital outputs –five potential-free outputs designed for:
-fault signalling
-four configurable outputs
•Supervised digital inputs –four inputs designed to receive digital signals, all inputs are
configurable
•Unsupervised digital inputs –five inputs designed to receive the following digital signals:
-signal from the weather station
-power supply fault indication
-230 V AC mains fault indication
-two configurable inputs

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Operation and Maintenance Manual
SR-300
•MCP (manual call points) inputs –three lines (configurable fire/reset function for each input)
supervised, intended for use with manual call points; up to 10 manual call points can be
connected to a single line; all lines allow for monitoring of line short circuit/break status
(parametrisation with 5.6 ÷ 10 kΩ resistors)
•MCP (manual call points) outputs –five outputs intended for signalling the status of the MCP:
standby, fault, ventilation and fire (two outputs)
•SD smoke detector inputs –two conventional surveillance lines for use with smoke detectors;
each line can accommodate up to 32 smoke detectors or smoke and heat detectors; all lines
allow monitoring of line short-circuit/break conditions on the line (parametrisation with 4.7
kΩ resistors)
The SR-300 RYS smoke extraction control panel requires programming based on the
technical parameters of the connected receivers and in accordance with the fire emergency
scenario. The configuration of the SR-300 RYS smoke extraction control panel is done using
a dedicated configurator.
The configuration instructions in the configurator are a separate document and are
supplied with the unit. The configurator can be downloaded from the SMAY website.
4.4. SR-300 RYS extraction control panel series types
The SR-300 RYS smoke extraction control panel series consists of 12 types. The different
types differ in the number of inputs, outputs and the maximum available current to supply the
devices connected to the control panel. A description of the individual inputs and outputs of the
control panel, together with their configuration options can be found in section 7 of this
manual.
Table 4.1 considers the differences between the different types of SR-300, while technical data
can be found in section 5.2 of this manual.
In Table 4.1, the inputs/outputs are separate from the inputs/outputs of the manual call
points. There is one full input/output under MCP on each SR-300, while a simple MCP
input/output is available on selected unit types.
The full MCP input/output includes:
- two supervised configurable inputs (fire and reset)
- two non-supervised configurable inputs (ventilation start and ventilation stop)
- four configurable outputs 24 V DC to MCP diodes (standby, fault, fire and ventilation)
A simple MCP input/output includes:
- one supervised configurable input (fire, reset)
- one 24 V DC output for fire indicator on the MCP

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Operation and Maintenance Manual
SR-300
4.48
4
4
4
46 [A]
YES
5
4
3
1
1
2
2
1
+2 sound out.
+2 vis. out
1
+1 Wind &
rain sensor
1
+2 Sup. in. +2
No-pot. out.
1
+1 Full MCP in.
+ 1 sim. MCP in.
1
+2 Smoke
detector lines
4.39
4
4
4
41.3 [A]
YES
5
4
3
1
1
2
2
1
+2 sound out.
+2 vis. out
1
+1 Wind &
rain sensor
1
+2 Sup. in. +2
No-pot. out.
1
+1 Full MCP in.
+ 1 sim. MCP
in.
1
+2 Smoke
detector lines
4.29
4
4
4
31 [A]
YES
5
4
3
1
1
2
2
1
+2 sound out.
+2 vis. out
1
+1 Wind &
rain sensor
1
+2 Sup. in. +2
No-pot. out.
1
+1 Full MCP in.
+ 1 sim. MCP
in.
1
+2 Smoke
detector lines
4.20
4
4
4
23.4 [A]
YES
5
4
3
1
1
2
2
1
+2 sound out.
+2 vis. out
1
+1 Wind &
rain sensor
1
+2 Sup. in. +2
No-pot. out.
1
+1 Full MCP in.
+ 1 sim. MCP in.
1
+2 Smoke
detector lines
4.8
4
4
4
10 [A]
YES
4
4
3
1
1
2
2
1
+2 sound out.
+2 vis. out
1
+1 Wind &
rain sensor
1
+2 Sup. in. +2
No-pot. out.
1
+1 Full MCP in.
+ 1 sim. MCP
in.
1
+2 Smoke
detector lines
2.29P
2
2
3
31 [A]
YES
5
3
3
1
1
2
2
1
+2 sound out.
+2 vis. out
1
+1 Wind &
rain sensor
1
+2 Sup. in. +2
No-pot. out.
1
+1 full MCP in.
+ 1 sim. MCP
in.
1
+2 Smoke
detector lines
2.20
2
2
2
22 [A]
YES
5
3
3
1
1
2
2
1
+2 sound out.
+2 vis. out
1
+1 Wind &
rain sensor
1
+2 Sup. in. +2
No-pot. out.
1
+1 Full MCP in.
+ 1 sim. MCP
in.
1
+2 Smoke
detector lines
2.8
2
2
2
10 [A]
YES
5
3
3
1
1
2
2
1
+2 sound out.
+2 vis. out
1
+1 Wind &
rain sensor
1
+2 Sup. in. +2
No-pot. out.
1
+1 Full MCP in.
+ 1 sim. MCP
in.
1
+2 Smoke
detector lines
1.20P
1
2
2
22 [A]
YES
5
2
3
1
0
1
1
1
+2 sound out.
+2 vis. out
1
+1 Wind &
rain sensor
1
+2 Sup. in. +2
No-pot. out.
0
...............
0
...............
1.8P
1
2
2
10 [A]
YES
4
2
2
1
0
1
1
1
+2 sound out.
+2 vis. out
1
+1 Wind &
rain sensor
1
+2 Sup. in. +2
No-pot. out.
0
...............
0
...............
1.8
1
1
1
10 [A]
YES
4
2
2
1
0
1
1
1
+2 sound out.
+2 vis. out
1
+1 Wind &
rain sensor
1
+2 Sup. in. +2
No-pot. out.
0
...............
0
...............
1.4
1
1
1
5.5 [A]
YES
4
2
2
1
0
1
1
1
+2 sound out.
+2 vis. out
1
+1 Wind &
rain sensor
1
+2 Sup. in. +2
No-pot. out.
0
...............
0
...............
TYPE SR-300
NUMBER OF FIRE ZONES
NUMBER OF VENTILATION ZONES
NUMBER OF ACTUATOR OUTPUTS
TOTAL OUTPUT CURRENT
POWER SUPPLY OUTPUT
POTENTIAL-FREE OUTPUTS
SUPERVISED INPUTS
UNSUPERVISED INPUTS
FULL MCP INPUT/OUTPUT
SIMPLE MCP INPUT/OUTPUT
SMOKE DETECTORS INPUTS
ELECTRIC DOOR STRIKE OUTPUTS
SLOT FOR SIGNALLING DEVICE
BOARD
CONTROL PANEL FUNCTIONALITY
WITH SIGNALLING DEVICE BOARD
WEATHER STATION BOARD SLOT
CONTROL PANEL FUNCTIONALITY
WITH WEATHER STATION BOARD
SLOT FOR THE DIGITAL I/O BOARD
CONTROL PANEL FUNCTIONALITY
WITH DIGITAL I/O BOARD
SLOT FOR MCP BOARD
CONTROL PANEL FUNCTIONALITY
WITH MCP BOARD
SLOT FOR SMOKE DETECTOR BOARD
CONTROL PANEL FUNCTIONALITY
WITH SMOKE DETECTOR BOARD

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SR-300
NOTE:
The following abbreviations are used in the table:
•sound out. –acoustic sounder outputs
•vis. out. –visual signalling output
•Wind and rain sensor –wind and rain sensor
•Sup. in. –supervised input
•No-pot. out. –potential-free output
•Full MCP in. –full input manual call points
•Sim. MCP in. –simple input manual call points
4.5. Inputs/outputs used depend on the type of the SR-300 RYS
Description
I/O no
PIN
no
Type
1.4
1.8
1.8P
1.20P
2.8
2.20
2.29P
4.8
4.20
4.29
4.39
4.48
SR-300 RYS smoke extraction control panel
Actuator outputs
X1
9
+
+
+
+
+
+
+
+
+
+
+
+
10
X2
7
-
-
+
+
+
+
+
+
+
+
+
+
8
X3
32
-
-
-
-
-
-
+
+
+
+
+
+
33
X4
34
-
-
-
-
-
-
-
+
+
+
+
+
35
Electric door strike outputs
X5
11
+
+
+
+
+
+
+
+
+
+
+
+
12
13
X6
14
-
-
-
-
+
+
+
+
+
+
+
+
15
16
Digital outputs
Out 1
17
+
+
+
+
+
+
+
+
+
+
+
+
18
19
Out 2
20
+
+
+
+
+
+
+
+
+
+
+
+
21
22
Out 3
23
+
+
+
+
+
+
+
+
+
+
+
+
24
25

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Out 4
26
+
+
+
+
+
+
+
+
+
+
+
+
27
28
Out 5
29
-
-
-
+
+
+
+
-
+
+
+
+
30
31
Digital inputs
Unsupervised inputs
In. 1
64
+
+
+
+
+
+
+
+
+
+
+
+
65
In. 2
66
+
+
+
+
+
+
+
+
+
+
+
+
67
In. 3
68
-
-
-
+
-
+
+
+
+
+
+
+
69
Supervised inputs
In. 4
36
+
+
+
+
+
+
+
+
+
+
+
+
37
In. 5
38
+
+
+
+
+
+
+
+
+
+
+
+
39
In. 6
40
-
-
-
-
+
+
+
+
+
+
+
+
41
In. 7
42
-
-
-
-
-
-
-
+
+
+
+
+
43
Panelinputs of smoke
detectors
Detector 1
70
+
+
+
+
+
+
+
+
+
+
+
+
71
Detector 2
72
-
-
-
-
+
+
+
+
+
+
+
+
73
MCP (manual call point) inputs
Simple MCP
In. 1
60
-
-
-
-
+
+
+
+
+
+
+
+
61
Full MCP
In. 2
44
+
+
+
+
+
+
+
+
+
+
+
+
45
In. 3
46
+
+
+
+
+
+
+
+
+
+
+
+
47
In. 8
48
+
+
+
+
+
+
+
+
+
+
+
+
49
In. 9
50
+
+
+
+
+
+
+
+
+
+
+
+
51

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Additional card 1
Digital inputs
In. 8
1.1
+
+
+
+
+
+
+
+
+
+
+
+
1.2
In. 9
1.3
+
+
+
+
+
+
+
+
+
+
+
+
1.4
Digital outputs
Out. 6
1.5
+
+
+
+
+
+
+
+
+
+
+
+
1.6
1.7
Out. 7
1.8
+
+
+
+
+
+
+
+
+
+
+
+
1.9
1.10
Additional card 2
MCP (manual call point) inputs
In. 4
2.1
-
-
-
-
+
+
+
+
+
+
+
+
2.2
In. 5
2.3
-
-
-
-
+
+
+
+
+
+
+
+
2.4
In. 6
2.5
-
-
-
-
+
+
+
+
+
+
+
+
2.6
In. 12
2.7
-
-
-
-
+
+
+
+
+
+
+
+
2.8
In. 13
2.9
-
-
-
-
+
+
+
+
+
+
+
+
2.10
Additional card 3
Panel inputs of smoke
detectors
Detector 3
3.1
-
-
-
-
+
+
+
+
+
+
+
+
3.2
Detector 4
3.3
-
-
-
-
+
+
+
+
+
+
+
+
3.4
Additional card 4
Acoustic sounder
outputs
Sounder 1
4.1
+
+
+
+
+
+
+
+
+
+
+
+
4.2
Sounder 2
4.3
+
+
+
+
+
+
+
+
+
+
+
+
4.4
Visual signalling output
Vis. out. 1
4.5
+
+
+
+
+
+
+
+
+
+
+
+
4.6
Vis. out. 2
4.7
+
+
+
+
+
+
+
+
+
+
+
+
4.8

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5. Technical Data
5.1. Motherboard view
Figure 5.1. Overview diagram of the SR-300 panel motherboard
5 4 3 2
USB
8
8
7
7
+/–+/––/+ –/+
+24 VDC
+24 VDC
/GND GND/
Actuator output 2
10
10
9
9
+/–+/––/+ –/+
+24 VDC
+24 VDC
/GND GND/
Actuator output 1
43 42 41 40
39 38 37 36
Sig. GND sig. GND sig. GND sig.
GND
7 6 5 4
Configura ble
Configura ble
Configura ble
Configura ble
Supervised digital
inputs
Ventilation
diodee
Fire diode
Fault diode
Standby
diode
MCP outputs
+24
VDC
GND
+ –
5 6
+24
VDC
GND
–+ –+
1 2 3 4
+24
VDC
GND
Auxiliary
supply
Main
supply
Power output
+24 V
13
13 2
11
com NC NO
Electric door
strike output 1
16
15 2
14
com NC NO
Electric door
strike output 2
47 46 45 44 Sig. GND Sig. GND
3 2
Con-
figurable
Con-
figurable
Supervised RPO
inputs
51 50 49 48 Sig. GND Sig. GND
9 8
Con-
figurable
Con-
figurable
Unsupervised
RPO outputs
FIRE
FAULT VENTILATION
Service display
ON DIP Switch
1 2 3 4
Panel
reset
Test
SR –300 RYS
MOnitored
MCP inputs
Configura
ble
1
Sig. GND
60 61
MCP outputs
Fire signal
button
1
+24 VDC
62 63
GND
Unmonitored digital
inputs
1 2 3
Sig. GND Sig. GND Sig. GND
Weather
station
Power
supply fault
Power supply
mains fault
64 65 66 67 68 69
Smoke detectors
1 2
Sig. GND sig. GND
Smoke
detector input
70 71 72 73
Smoke
detector input
Potential-free outputs
Configura
ble
Configura
ble
Configura
ble
Configura
ble
Fault
1 2 3 4 5
NO com NC NO com NC NO com NC NO com NC NO com NC
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Actuator output 3
+24 VDC
GND/
+24 VDC
GND
-/+ -/+ +/- +/-
32 32 33 33
Actuator output 4
/+24 VDC
GND
+24 VDC
/GND
-/+ -/+ +/- +/-
34 34 35 35
59 58 57 56 55 54 53 52
+24 VDC
+24 VDC
+24 VDC
+24 VDC
GND
GND
GND
GND

Version 1.40
Release date: 17.02.2023 year
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Operation and Maintenance Manual
SR-300
5.2. Motherboard description
The Motherboard is equipped with:
•Fire alarm LED –illuminates when there is an active fire alarm in any fire zone, flashing
of the fire LED indicates activation of one of the smoke detectors in the line with active
coincidence
•Fault LED –illuminates when the control unit detects a fault, in which case, please
check the fault code displayed on the main board
•OK LED –illuminates when the board is receiving power
•Ventilation indication LED –illuminates when ventilation mode is active
•RESET button –when held down, resets the fire alarm(s)
•BUTTON button –when held down, performs a motherboard test
•DIP switch –this deactivates the corresponding smoke detector lines
Switch no
ON
OFF
1
Smoke detector CD1 line inactive
Smoke detector CD1 line active
2
Smoke detector CD2 line inactive
Smoke detector CD2 line active
3
Smoke detector CD3 line inactive
Smoke detector CD3 line active
4
Smoke detector CD4 line inactive
Smoke detector CD4 line active
When the RESET and BUTTON buttons are pressed simultaneously, the control unit
enters the service/roof hatch mode by opening the actuators set as active in the service/roof
hatch mode in the configurator.

Version 1.40
Release date: 17.02.2023 year
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Operation and Maintenance Manual
SR-300
Figure 5.2. View of the SR-300 RYS motherboard.

Version 1.40
Release date: 17.02.2023 year
Page 14 of 74
Operation and Maintenance Manual
SR-300
5.3. Technical parameters
Input supply voltage
230 V AC +15% -20%
Maximum mains current consumption
[A]
SR-300 1.4
SR-300 1.8
SR-300 1.8P
1.7
2.2
2.2
SR-300 1.20P
SR-300 2.8
SR-300 2.20
4.0
2.2
4
SR-300 2.29P
SR-300 4.8
SR-300 4.20
4.9
2.2
4.2
SR-300 4.29
SR-300 4.39
SR-300 4.48
4.9
6.1
8.0
Motherboard power supply output
voltage
24 V DC +20% -10%
Maximum power supply output
(24 V DC) on the motherboard
48 W
Permissible output current(24 V DC)
SR-300 1.4
SR-300 1.8
SR-300 1.8P
5.5 A
10 A
10 A
SR-300 1.20P
SR-300 2.8
SR-300 2.20
22 A
10 A
22 A
SR-300 2.29P
SR-300 4.8
SR-300 4.20
31 A
10 A
23.4 A
SR-300 4.29
SR-300 4.39
SR-300 4.48
31 A
41.3 A
46 A
Protection rating
Each control unit can be manufactured to IP 40
or IP 54 standards upon request.
Below is the standard version.
IP 40:
SR-300 1.20P, SR-300 2.20, SR-300 2.29P, SR-
300 4.20, SR-300 4.29, SR-300 4.39, SR-300
4.48
IP 30:
SR-300 1.4, SR-300 1.8, SR-300 1.8P, SR-300
2.8, SR-300 4.8
Operating temperature
From -5 °C to +40 °C
Internal operating voltage
24 V DC/72 h for supply fault
Maximum battery capacity
45 Ah
Group configuration
- Up to four smoke extraction groups

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Operation and Maintenance Manual
SR-300
- Up to fourventilation groups
Actuator outputs
- Up to 4 x 24 V DC actuator outputs
- Load capacity of a single output up to 12 A
(outputs X2-X4), output X1 of the actuator
(pins 9 and 10) up to a maximum of 8 A
Monitoring lines/smoke detector inputs
- Conventional parametric (open)
- Up to four smoke sensor lines (incl. two
optional on an additional card)
- Up to 32 detectors on a single monitoring line
- Wire break/short-circuit control with resistors:
4.7 kΩ
- Control circuit voltage: 24 VDC
Lines of manual call points
- Up to six manual call points (incl. three
optional on an additional card)
- Up to 10 manual call pointsin a single line
- Parametrisation with resistors: 5.6–10kΩ
and 1.1kΩ
- Sampling voltage 24 V DC
Voltage outputs for MCP diodes
- 24 V DC
- Maximum power of a single output 12 W
- Maximum current of a single output 0.5 A
Electric door strike outputs
- Two outputs
- For standard and reversible electric door
strikes
- 24 V DC
- Maximum current of a single output 2 A
Digital inputs
- Six monitored digital inputs (incl. two optional
on an additional card)
- Seven unmonitored digital inputs (incl. two
optional on an additional card)
- Wire break/short-circuit resistor-parametrised
control: 4.7 kΩ
- Sampling voltage: 18 VDC
Digital outputs
- Seven potential-free digital outputs (incl. two
optional on an additional card)
- Maximum voltage applied to the output:
250 V AC

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Release date: 17.02.2023 year
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Operation and Maintenance Manual
SR-300
- Maximum current 3 A
Sounders
- Optional (see section 6.4 of the manual)
Weather station
- Optional (see section 6.5 of the manual)
USB
Micro-USB socket
6. SR-300 RYS Smoke Extraction Control Panel –Additional Cards
It is possible to expand the SR-300 RYS Smoke Extraction Control Panel with additional
optional cards. They increase the capabilities of the control panel and allow for
new functionalities, such as support for optical and acoustic signaling devices and
a weather station.
Depending on the type of smoke ventilation control panel (see subsection 4.4), up to
five additional cards can be connected to it, with the description found in this section of the
manual. The additional cards are independent of each other, with each card having its input
assigned to the main board.
Additional cards:
-No 1 –Digital input/output
-No 2 –Manual call points
-No 3 –Smoke detectors
-No 4 –Beacon/Sounder
-No 5 –Weather station
6.1. Input/output card –Additional card 1
This board provides additional supervised digital inputs and potential-free outputs. It
can be connected to an aspirating detector.
The card has the following inputs/outputs:
•Digital inputs –Two monitored inputs designed to receive digital signals. If an
aspirating detector is connected, it turns into:
oOne monitored input for a detector alarm
oOne monitored input for a detector fault
•Two digital outputs that are potential-free
NOTE:
Do not disconnect the ribbon cables connecting the motherboard to the card while
the motherboard is powered. Disconnecting the ribbon cables may result in damage
to the motherboard.
Technical data:
Digital inputs
Two monitored digital inputs
- Wire break/short-circuit resistor-parametrised
control: 4.7 kΩ
- Sampling voltage: 18 VDC
Digital outputs
- Two potential-free digital outputs
- Maximum voltage applied to the output: 250 V AC
- Maximum current: 3 A

Version 1.40
Release date: 17.02.2023 year
Page 17 of 74
Operation and Maintenance Manual
SR-300
Figure 6.1. Schematic diagram of additional card 1.
Figure 6.2. Actual view of additional card 1.
6.2. Manual call point card –Additional card 2
This card allows connection of an additional full line of MCP manual call points and one
MCP simple line. The card has the following inputs/outputs:
•Digital inputs –two unmonitored inputs designed to receive digital start/stop
ventilation signals
•Digital inputs –three monitored inputs designed to receive digital fire alarm/fire
system reset signals
•Diode outputs –five configurable outputs to signal the MCP status
NOTE:
Do not disconnect the ribbon cables connecting the motherboard to the card while
the motherboard is powered. Disconnecting the ribbon cables may result in damage
to the motherboard.
7 6
Configurable
Configurable
Potential-free outputs
NC com NO NC com NO
1.10 1.9 1.8 1.7 1.6 1.5
1.4 1.3 1.2 1.1
Sig. GND sig. GND
9 8
Con-
figurable
Con-
figurable
Monitored digital
inputs
Additional Card 1 –
digital input/output

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Release date: 17.02.2023 year
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Operation and Maintenance Manual
SR-300
Technical data:
Digital inputs
- Two unmonitored digital inputs designed to receive
digital start/stop ventilation signals
- Three monitored inputs (e.g. fire alarm/fire system
reset signals)
- Parametrisation with resistors: 5.6–10 kΩ,1.1 kΩ
- Sampling voltage: 24 VDC
RPO outputs
- Five outputs with power supply: 24 VDC
- Maximum power of a single output: 12 W
- Maximum current of a single output: 0.5 A
Figure 6.3. Schematic diagram of additional card 2.
Figure 6.4. Actual view of additional card 2.
10 9 8 7 6 13 12 6 5 4
Ventilation
diode
Con-
figurable
MCP outputs
2.20 2.19 2.18 2.17 2.16 2.15 2.14 2.13 2.12 2.11 2.10 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1
Additional card 2 –Manual call points
Con-
figurable
Con-
figurable
Con-
figurable
Con-
figurable
Fire
diode
Fault
diode
Standby
diode
Simple
MCP
Unmonitored
digital inputs
Monitored MCP
inputs
+24
VDC
GND
+24
VDC
GND
+24
VDC
GND
+24
VDC
GND
+24
VDC
GND
Sig. GND sig. GND sig. GND sig. GND sig. GND

Version 1.40
Release date: 17.02.2023 year
Page 19 of 74
Operation and Maintenance Manual
SR-300
6.3. Smoke detector card –Additional card 3
This card allows the SR-300 RYS smoke extraction control panel to be extended with
two more lines of smoke detectors. The card has the following inputs/outputs:
•SD smoke detector inputs –two conventional surveillance lines for use with
smoke detectors; each line can accommodate up to 32 smoke detectors or
smoke and heat detectors; all lines allow monitoring of short-circuit/wire break
conditions on the line (parametrisation with 4.7 kΩ resistors).
NOTE:
Do not disconnect the ribbon cables connecting the motherboard to the card
while the motherboard is powered. Disconnecting the ribbon cables may result in
damage to the motherboard.
Technical data:
Smoke detector inputs/monitoring
lines
- Two monitored line inputs
- Control circuit voltage: 24 VDC
- Wire break/short-circuit control, (parametrisation
with 4.7 kΩ resistor)
- Voltage in the control circuit: 24 VDC
Figure 6.5. Schematic diagram of additional card 3.
Figure 6.6. Actual view of additional card 3.
Additional card 3 –
smoke detector card
3.4 3.3 3.2 3.1
GND sig. GND sig.
4 3
Smoke
detector input
Smoke detectors
Smoke
detector input