Bosch PVA-4R24 User manual

PAVIRO Router
PVA‑4R24
en User manual

PAVIRO Router Table of contents | en 3
Bosch Security Systems, B.V. User manual 2022-11 | 07 | F01U306901
Table of contents
1Important product information 4
1.1 Safety information 4
1.2 Disposal instructions 5
1.3 FCC statement 5
2Short information 6
3System overview 7
3.1 Front panel 7
3.2 Rear panel 9
4Parts included 10
5Installation 11
6Connection 13
6.1 Audio input 13
6.2 Loudspeaker output 14
6.3 Supply voltage 15
6.4 CAN BUS 16
6.5 Control input 18
6.6 Control output 19
7Configuration 22
7.1 Setting the CAN address 22
7.2 Displaying the CAN baud rate 23
7.3 Configuring the CAN baud rate 23
8Operation 24
8.1 Line supervision 24
8.1.1 Impedance measurement 24
8.1.2 EOL slave module 25
8.1.3 Plena EOL 26
8.2 Pilot tone 27
8.3 Amplifier input supervision 27
9Maintenance 28
9.1 Firmware update 28
9.2 Resetting to factory default settings 28
10 Technical data 29
10.1 Dimensions 30

4en | Important product information PAVIRO Router
2022-11 | 07 | F01U306901 User manual Bosch Security Systems, B.V.
1 Important product information
1.1 Safety information
1. Read and keep these safety instructions. Follow all instructions and heed all warnings.
2. Download the latest version of the applicable installation manual from
www.boschsecurity.com for installation instructions.
Information
Refer to the Installation Manual for instructions.
3. Follow all installation instructions and observe the following alert signs:
Notice! Containing additional information. Usually, not observing a notice does not
result in damage to the equipment or personal injuries.
!
Caution! The equipment or the property can be damaged, or persons can be injured if
the alert is not observed.
Warning! Risk of electric shock.
4. System installation and servicing by qualified personnel only, in accordance with
applicable local codes. No user-serviceable parts inside.
5. System installation for emergency sound (except for call stations and call station
extensions) in a Restricted Access Area only. Children may not get access to the system.
6. For rack-mounting of system devices, make sure that the equipment rack is of suitable
quality to support the weight of the devices. Use caution when moving a rack to avoid
injury from tip over.
7. The apparatus shall not be exposed to dripping or splashing and no objects filled with
liquids, such as vases, shall be placed on the apparatus.
Warning! To reduce the risk of fire and electric shock, do not expose this apparatus to
rain or moisture.
8. Mains powered equipment shall be connected to a mains power outlet socket with a
protective earthing connection. An external, readily operable, mains plug or all‑pole mains
switch shall be installed.
9. Only replace the mains fuse of an apparatus with a fuse of the same type.
10. The protective ground connection of an apparatus shall be connected to protective
ground before the apparatus is connected to a power supply.
11. Amplifier outputs marked with

may carry audio output voltages up to 120VRMS.
Touching uninsulated terminals or wiring may result in an unpleasant sensation.
Amplifier outputs marked with or may carry audio output voltages above 120VRMS. It
requires a skilled person to strip and connect the loudspeaker wires in such a way that
the naked conductors are inaccessible.
12. The system may receive power from multiple mains power outlet sockets and backup
batteries.
Warning! To prevent a shock hazard disconnect all power sources prior to system
installation.
13. Only use recommended batteries and observe polarity. Risk of explosion if an incorrect
type of battery is used.

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14. Fiber optical converters use invisible laser radiation. To prevent injury, avoid eye
exposure to the beam.
15. Devices for vertical (wall) mounting supporting a user interface for operation shall only be
mounted below 2m height.
16. Devices installed above 2m height may cause injury when falling down. Preventive
measures must be taken.
17. To prevent hearing damage do not listen at high volume levels for long periods.
18. An apparatus may use a lithium coin battery. Keep away from children. If ingested, high
risk of chemical burn hazard. Seek medical attention immediately.
1.2 Disposal instructions
Old electrical and electronic appliances.
Electrical or electronic devices that are no longer serviceable must be collected
separately and sent for environmentally compatible recycling (in accordance with the
European Waste Electrical and Electronic Equipment Directive).
To dispose of old electrical or electronic devices, you should use the return and
collection systems put in place in the country concerned.
1.3 FCC statement
Warning! Changes or modifications not expressly approved by Bosch could void the
user’s authority to operate the equipment.
Notice!
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee interference
will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one
or more of the following measures:
– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and receiver.
– Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
– Consult the dealer or an experienced radio/TV/communications equipment
technician.

6en | Short information PAVIRO Router
2022-11 | 07 | F01U306901 User manual Bosch Security Systems, B.V.
2 Short information
The PVA-4R24 24 Zone Router is a zone extension for the PAVIRO system. The PVA-4R24 adds
24 zones, 20 GPIs, 24 GPOs and 2 control relays to the system and is controlled and
supervised via the CAN bus by the PVA-4CR12 (Controller).
Up to 20 routers can be connected to one controller. One router can handle up to 4000W
speaker load. The maximum load of one zone is 500W.
The zone indicator lights on the front indicate the current status of every zone:
– Green: Zone in use for non emergency purpose
– Red: Zone in use for emergency purpose
– Yellow: Zone fault detected
– Off: Zone in idle condition

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3 System overview
3.1 Front panel
Number Symbol Element Description
1 Zone status
indicator light
Indicates the status of the zone:
– Green = Zone is in use for non-emergency
purpose
– Yellow = Zone fault detected (Note: The
indication of this status has the highest
priority)
– Red = Zone is in use for emergency purpose
– Off = Zone in idle condition
2 Combined fault
warning indicator
light
This indicator lights up yellow if a fault in the
device is detected.
Note: The fault types to be indicated via this
indicator can be configured.
3 Recessed button The button is protected to prevent it from being
pressed accidentally. Use a pointed object (such
as a ballpoint pen) to press the button.
This button has the following functions if the CAN
address of the device is not set to 00:
– Find function: If the find function of the
device is activated, press this button to
deactivate the indicators.
– Displaying the CAN baud rate: Press this
button for at least one second. Please refer to
section Displaying the CAN baud rate, page
23 .
– LED test: Press this button for at least three
seconds to activate the LED test. All
indicators at the front panel light up as long
as the button is pressed.
This button has the following functions if the CAN
address of the device is set to 00:
– Resetting a fault (e.g. watchdog fault): Press
the button briefly to confirm a fault.

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2022-11 | 07 | F01U306901 User manual Bosch Security Systems, B.V.
Number Symbol Element Description
– Setting/displaying the CAN baud rate: Press
this button for at least one second. Please
refer to section Configuring the CAN baud
rate, page 23 .
– Resetting to delivery condition: Press this
button for at least three seconds. Please refer
to section Resetting to factory default
settings, page 28 .
4 Network indicator
light
This indicator lights up green if successful data
communication has been established.
5 Standby indicator
light
This indicator lights up green when the device is in
standby mode.
6 Power indicator
light
This indicator lights up green when the power
supply is OK.

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3.2 Rear panel
Number Element Description
1 Grounding screw Ground connection
2 CONTROL IN ports Control port with isolated or supervised inputs. Please
refer to section Control input, page 18 .
3 CONTROL OUT ports Control port with open collector outputs. Please refer
to section Control output, page 19 .
4 AMP IN ports Input for 100 V (or 70 V) audio signal from power
amplifier.
5 SPEAKER OUT ports Output for speaker zones.
6 DC power input
7 CAN ADDRESS selector
switch
HIGH-byte and LOW-byte for configuring the CAN
address of the device.
8 CAN BUS port Connection with CAN bus, e.g. controller.

10 en | Parts included PAVIRO Router
2022-11 | 07 | F01U306901 User manual Bosch Security Systems, B.V.
4 Parts included
Quantity Component
1 PVA-4R24 Router
1 Set of connectors
1 Set of feet
1 Installation manual
1 Important safety instructions

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5 Installation
This device has been designed to be installed horizontally in a conventional 19” rack cabinet.
Front attachment of the device
Refer to the following illustration to attach the front of the device, using four screws and
washers. Because of painted surfaces the connection of the grounding screw at the rear panel
of the device is recommended.
Figure5.1: Installation of the device into a 19" rack
!
Caution!
The use of rack mount rails is recommended when installing the device in a rack shelf or rack
cabinet to prevent the front panel from twisting or warping. If devices should be stacked in
the rack (e.g. using the self-adhesive foot stands supplied) the maximum permissible load of
the mount rails must be considered. Please refer to the technical specifications provided by
the rack rail manufacturer.
Figure5.2: Stacking of devices using the supplied foot stands (example with 3 devices, rack mount rails
are used for the bottom device only)
The device must be protected from:
– Dripping water or spray
– Direct sunlight
– High ambient temperatures or immediate sources of heat
– High humidity
– Large dust deposits
– Strong vibrations

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If these requirements cannot be guaranteed, the device must be regularly serviced to prevent
any outages that could occur as a result of negative ambient conditions. If a solid object or
fluid enters the housing, immediately disconnect the device from the voltage supply, and have
it serviced by an authorized technician before it is recommissioned.
!
Warning!
The maximum ambient temperature of +45°C should not be exceeded.
Standby mode
In standby mode, the power consumption of the device significantly reduces. In standby
mode, the following functions are still available:
– Remote control via the CAN bus
– Monitoring of the DC input
– Function of the Control Port
Standby operation is activated via the CAN bus and indicated by the Standby indicator light.

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6 Connection
6.1 Audio input
The AMP IN audio inputs allow to connect the 100 V (or 70 V) output signals of up to eight
power amplifier channels to the integrated 2-in-6 router blocks A, B, C or D. Additionally there
are four input channels for spare amplifiers.
The delivery includes 6-pin connectors. Conductor cross-sections of 0.14mm² (AWG26) to
1.5mm² (AWG16) can be used.
Recommended connecting cable: stranded wire, LiY, 0.75 mm².
Routing
Following illustration gives an overview of possible routings between the AMP IN audio inputs
and the SPEAKER OUT audio outputs using the internal relays of the device. The PVA-4R24
includes four 2-in-6 routing blocks A, B, C or D. Each routing block provides 2 regular inputs, 1
spare amplifier input and 6 outputs.
Spare amplifier input S1 of AMP IN A (C) is for replacing the amplifiers connected to inputs 1
of routing blocks A (C) and B (D).
Spare amplifier input S2 of AMP IN B (D) is for replacing the amplifiers connected to inputs 2
of routing blocks A (C) and B (D).

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6.2 Loudspeaker output
100V or 70V loudspeakers can be connected on each speaker output with the 4 (four) 12-pin
connectors that are delivered with the device. Loudspeaker cables with a cross sectional area
from 0.14mm2 (AWG26) up to 1.5mm2 can be used.
Recommended connecting cable: stranded wire, LiY, 0.75 mm² (h/w 03/00 and higher).
About the cable diameter
The voltage drop over cables should not exceed 10 %.
Cables with a higher voltage drop lead to a high proportional cable attenuation at the
loudspeakers. This is particularly noticeable at higher volume levels, for example alarm signals.
A high voltage drop can also cause communication problems with the EOL modules.
The following table gives an overview of the maximum cable lengths for different speaker
loads depending on the cable diameters.
Cross-
section
[mm2]
Diameter
[mm]
10 W
[m]
20 W
[m]
100 W
[m]
200 W
[m]
300 W
[m]
400 W
[m]
500 W
[m]
0.5 0.8 1000 800 160 80 53 40 32
0.75 1.0 1000 1000 240 120 80 60 48
1.0 1.1 1000 1000 320 160 107 80 64
1.5 1.4 1000 1000 480 240 160 120 96
2.5 1.8 1000 1000 800 400 267 200 100
4.0 2.3 1000 1000 1000 640 427 320 256
Maximum loudspeaker load
The maximum rated power should not exceed 500W per amplifier channel and/or controller/
router output (see chapter 6.1.2.). The internal 2-in-6 router output block offers the possibility
to distribute the 500W amplifier power to 6 zones. If two 500-watt amplifier channels are
used within a router cluster of 6 zones, up to 1000 W can be distributed to these 6 zones. The
maximum rated power of 500W at a single speaker output must not be exceeded.
Danger!
It is possible that during operation shock hazard voltages (> 140V peak value) may be
present at the outputs. Therefore, the connected loudspeaker zones have to be installed in
accordance with applicable safety regulations. When installing and operating 100V
loudspeaker networks, compliance with the VDE regulation DIN VDE 0800 is mandatory.
Especially, when 100V loudspeaker networks in alarm system applications are concerned, all
safety precautions have to be in accordance with the safety class 2 wiring.

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Note: The breakdown voltage on the loudspeaker output from a controller/router (HW: 2.00) is
120V between the loudspeaker cable pairs and 60V between a loudspeaker cable pole and
ground.
Wiring faults
Loudspeaker cables, which typically run through the entire building, are more sensitive to
wiring faults.
There are different types of wiring faults as mentioned below:
– Ground fault: A ground fault is detected by the ground fault detection. If the resistance
between ground and speaker wire is < 50kΩ, a ground fault is indicated.
– Short circuit or open line: A cable that is short-circuited or open is detected by the built-
in impedance measurement, if the reference values are set correctly.
– Swapped zones: Swapped zones cannot be found/detected by impedance measurement,
if they have approximately the same load.
– Single pole connections between two zones: Single-pole connections lead to increased
crosstalk when one of the zones becomes active and/or when both zones distribute a
different signal. This results in incorrect impedance values being measured. This fault
cannot be detected by the ground fault detection and/or impedance measurement.
– Parallel connection of two or more zones: In this case two amplifier channels with
different signals or one amplifier channel and the impedance measurement can be
connected in parallel. This fault cannot be detected by the ground fault supervision and/
or impedance measurement, as the impedance reference values may already have been
set incorrectly.
– Crossed zones: A wire from a certain zone has been swapped with a wire from another
zone. This fault cannot be detected by the ground fault detection and/or impedance
measurement, as the impedance reference values may already have been set incorrectly.
6.3 Supply voltage
Connect a 24-volt DC source to the DC power input. The delivery includes a 2-pin connector.
Conductor cross-sections of 0.2mm² (AWG24) to 6mm² (AWG10) can be used.
Recommended connecting cable: flexible stranded wire, LiY, 1.5 mm².
The DC input is protected against incorrect polarity and overload. The associated fuse is
located on the inside of the device and is not accessible from outside of the device.
!
Warning!
Never connect the positive terminal + with ground.

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6.4 CAN BUS
This section contains information about the connection of the device to the CAN BUS and the
correct setting of the CAN address.
Connection
The device has two RJ-45 jacks for the CAN BUS. The jacks are connected in parallel, and act
as an input and for daisy chaining the network. The CAN bus allows different data rates to be
used, where the data rate is indirectly proportional to the bus length. If the network is small,
data rates of up to 500kbit/s are possible. In larger networks, the data rate must be
decreased (down to the minimum data rate of 10kbit/s), please refer to section Configuring
the CAN baud rate.
i
Notice!
The data rate is preset to 10kbit/s in the factory.
The following table explains the relationship between data rates and bus lengths/network
size. Bus lengths of over 1,000m must be implemented only with CAN repeaters.
Data rate (in kbit/s) Bus length (in meters)
500 100
250 250
125 500
62.5 1000
Table6.1: Data rate and bus length of the CAN BUS
The following diagrams show the assignment of the CAN port/CAN connector.
Figure6.1: Assignment of the CAN port
Figure6.2: Assignment of the CAN connector

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Pin Designation Cable color
T568A T568B
2 CAN_GND Green Orange
4 CAN_H (+) Blue
5 CAN_L (-) Blue stripes
Table6.2: Assignment of the CAN BUS interface
Cable specification
In accordance with the ISO 11898-2 standard, shielded twisted-pair cables with an impedance
of 120ohms must be used as the data transfer cable for the CAN bus. A terminating resistance
of 120ohms must be provided at both ends as the cable terminator. The maximum bus length
depends on the data transmission rate, the type of data transmission cable, and the number
of bus participants.
Recommended connecting cable: shielded twisted-pair, CAT5, 100 / 120Ω.
Bus length (in
m)
Data transmission cable Termination (in
Ω)
Maximum data
transmission
rate
Resistance per unit
(in mΩ/m)
Cable cross-
section
0 to 40 < 70 0.25 to 0.34mm²
AWG23, AWG22
124 1000 kbit/s at
40 m
40 to 300 < 60 0.34 to 0.6 mm²
AWG22, AWG20
127 500 kbit/s at
100 m
300 to 600 < 40 0.5 to 0.6 mm²
AWG20
150 to 300 100 kbit/s at
500 m
600 to 1000 < 26 0.75 to 0.8 mm²
AWG18
150 to 300 62.5 kbit/s at
1000 m
Table6.3: Relationships for CAN networks with up to 64 participants
If there are long cables and several devices on the CAN bus, terminating resistors with ohm
ratings higher than the specified 120ohms are recommended in order to reduce the resistive
load for the interface drivers, which in turn reduces the voltage loss from one cable end to
another.
The following table allows initial estimates for the required cable cross-section for different
bus lengths and various numbers of bus participants.
Bus length (in m) Number of devices on the CAN Bus
32 64 100
100 0.25 mm² or AWG24 0.34 mm² or AWG22 0.34 mm² or AWG22
250 0.34 mm² or AWG22 0.5 mm² or AWG20 0.5 mm² or AWG20
500 0.75 mm² or AWG18 0.75 mm² or AWG18 1.0 mm² or AWG17
Table6.4: CAN BUS cable cross-section
If a participant cannot be directly connected to the CAN bus, a stub line (branch line) must be
used. Since there must always be precisely two terminating resistors on a CAN bus, a stub line
cannot be terminated. This creates reflections, which impair the rest of the bus system. To

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minimize these reflections, these stub lines must not exceed a maximum individual length of
2m at data transmission rates of up to 125kbit/s, or a maximum length of 0.3m at higher bit
rates. The overall length of all branch lines must not exceed 30m.
The following applies:
– In terms of rack wiring, standard RJ-45 patch cables with 100-ohm impedance (AWG24/
AWG26) can be used for short distances (up to 10m).
– The guidelines specified above for the network cabling must be used when wiring the
racks with each other and for the building installation.
6.5 Control input
There are two control input ports (input 1-5 or 6-10) on the rear of the device.
The CONTROL IN port is split into two halves:
– The upper half has five freely configurable supervised, not isolated control inputs.
– The lower half has five freely configurable isolated control inputs.
The delivery includes 10-pole connectors. Conductor cross-sections of 0.14 mm² (AWG26) to
1.5 mm² (AWG16) can be used. Recommended connecting cable: shielded flexible stranded
wire, LiY, 0.5 mm². The control port is configured in IRIS-Net.
!
Caution!
The maximum permissible voltage on a control input is 32 V.

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Figure6.3: Using supervised or isolated inputs of the CONTROL IN port
Supervised control inputs
The supervised control inputs can be used as
– normal logical (high/low) input (with low <= 5 V or high >= 10 V) or
– supervised input with states active, not active, open circuit or short circuit.
When using a supervised input (e.g. for connecting a CIE) add two resistors as illustrated
above (if not already included in the outputs of the connected device).
i
Notice!
The supervised inputs are internally equipped with 8.2kΩ pull up resistors. The ground pins
are equipped with a common self resettable 140mA fuse.
Isolated control inputs
The isolated control inputs can be used as normal logical (high/low) input (with low <= 5 V or
high >= 10 V) only. This inputs comply with VDE 0833-4.
6.6 Control output

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Control outputs
The freely programmable control outputs are designed as open collector outputs that have a
high resistance (open) when not active (OFF/inactive). When active (ON/active), the outputs
are closed to ground.
Recommended connecting cable: shielded flexible stranded wire, LiY, 0.5 mm².
!
Caution!
The maximum permissible current per output is 40mA. The maximum permissible voltage is
32 V.
To operate externally connected elements, a voltage source is available on the connection V
(the voltage at connection V is identical to the device input voltage); see also the following
illustration. The ground pin is equipped with a common self resettable 750mA fuse.
Figure6.4: Connecting a relay and the supervision contacts of a CIE to the CONTROL OUT port
Control relay
The control relay REL (changeover contact) can be used as VDE 0833-4 compliant output.
The IRIS-Net software allows the user to configure the parameters or fault types for which the
changeover contact should switch over. To integrate the device into the hazard alert systems,
a normally-closed contact (standby current principle) is recommended.
!
Caution!
The maximum load of the control relay is 32V/1A.