Bosch PRM-UST User manual

PRM‑UST | PRM‑USTB
en User manual


Table of contents | en 3
Bosch Security Systems B.V. User manual TBA | draft |
Table of contents
1Important product information 4
1.1 Safety information 4
1.2 Disposal instructions 5
1.3 Class A Notice for FCC and ICES 003 5
2About this manual 6
2.1 Intended audience 6
2.2 Copyright notice 6
2.3 Trademarks 6
2.4 Notice of liability 6
2.5 Document history 6
3Product introduction 7
3.1 Parts included 7
3.2 Installation 7
3.3 Indicators and connections 8
3.3.1 Front panel 8
3.3.2 Rear panel 9
3.3.3 Remote control 10
4Product function 12
4.1 FM Tuner 12
4.2 USB or SD 12
4.3 Bluetooth 14
5Troubleshooting 15
617
7
Technical data
18
Remark:

4en | Important product information
TBA | draft | 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 120VRMS.
Touching uninsulated terminals or wiring may result in an unpleasant sensation.
Amplifier outputs marked with or may carry audio output voltages above 120VRMS. 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.

Important product information | en 5
Bosch Security Systems B.V. User manual TBA | draft |
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 2m height.
16. Devices installed above 2m 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 Class B Notice for FCC and ICES 003
applies to U.S.A. and Canadian models only
FCC Caution:
Any Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
FCC RF Radiation Exposure Statement:
1. This Transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter.
2. This equipment complies with RF radiation exposure limits set forth for an uncontrolled
environment.
3.This equipment should be installed and operated with minimum distance 20cm between the
radiator& your body.
Note: 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 that 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 technician for help.

6en | About this manual
TBA | draft | User manual Bosch Security Systems B.V.
2 About this manual
The purpose of this user manual is to provide all required information needed for the
installation and configuration of the Bosch music source products PRM-UST and PRM-
USTB.
2.1 Intended audience
This user manual is intended for professionals familiar with audio systems.
2.2 Copyright notice
Unless otherwise indicated, this publication is the copyright of Bosch Security Systems B.V. All
rights are reserved.
2.3 Trademarks
Throughout this document trademark names may have been used. Rather than put a
trademark symbol in every occurrence of a trademark name, Bosch Security Systems states
that the names are used only in an editorial fashion and to the benefit of the trademark owner
with no intention of infringement of the trademark.
2.4 Notice of liability
While every effort has been taken to ensure the accuracy of this document, neither Bosch
Security Systems nor any of its official representatives shall have any liability to any person or
entity with respect to any liability, loss or damage caused or alleged to be caused directly or
indirectly by the information contained in this document.
Bosch Security Systems reserves the right to make changes to features and specifications at
any time without prior notification in the interest of ongoing product development and
improvement.
2.5 Document history
Release date Documentation version Reason
XX.2021 1st version Content creation

Product introduction | en 7
Bosch Security Systems B.V. User manual TBA | draft |
3 Product introduction
Bosch’s PRM-UST and PRM-USTB are professional multisource music players intended to be
used as background music sources for public address and commercial audio applications.
Both products have USB interface, SD card input for playing stored music files, and tuner for
FM frequency band broadcast. Additionally, PRM-USTB facilitates music streaming through
Bluetooth.
3.1 Parts included
The box contains the following parts:
1 2 3 4 5
6 7 8 9 10/0 RDS
16GB
Quantity Component
1 Music Source PRM-UST or PRM-USTB
1 Mains power cord
1 Set of 19”mounting brackets with screws
1 Remote control (battery not included)
2 2‑pair audio RCA cable
1 Antenna cord including connector
1 SD memory card (16GB)
1 Quick installation guide
1 Safety information
3.2 Installation
The product can be placed on a desk or mounted in a 19” rack.

8en | Product introduction
TBA | draft | User manual Bosch Security Systems B.V.
3.3 Indicators and connections
3.3.1 Front panel
16
1 2 3 4 5
6 7 8 9 10/0 RDS
2
23 24 25 26
1 3 4 5 62
7 8 9
17 18 19 20
222110
11 12 13 14 15
Number Description
1 Display (FM radio): LCD panel shows information related to FM radio
2 Digits 0-10 for preset (favorite) radio station selection or for playing a specific
frequency
3 Scan the FM radio stations
Display shows the frequency for the stations while scanning is in progress
4 Store a specific frequency channel as preset (favorite), in combination with the
digit keys
5 Short press: previous radio channel
Long press: decrease frequency for fine tuning
6 Short press: next radio channel
Long press: increase frequency for fine tuning
7 RDS information
8 Decrease radio volume
9 Increase radio volume
10 Mute FM radio output
11 SD card socket
12 USB socket
Use front and rear panel USB sockets at a time
13 Display (media): LCD panel shows relevant information for media inputs USB, SD
and Bluetooth
14 Short press: previous track
Long press: fast backward
15 Short press: next track
Long press: fast forward
16 Stop
17 Play or pause
18 Repeat a track or a list
19 Media source selection from USB, SD or Bluetooth

Product introduction | en 9
Bosch Security Systems B.V. User manual TBA | draft |
Number Description
20 Power on/off
21 Short press: previous folder
Long press: decrease adjustment for tone control items (EQ, bass/treble,
balance and loudness)
22 Short press: next folder
Long press: increase adjustment for tone control items (EQ, bass/treble, balance
and loudness)
23 Tone control (EQ, bass/treble, balance and loudness)
24 Decrease media volume
25 Increase media volume
26 Mute media output
3.3.2 Rear panel
FM Antenna
FMMedia
Voltage Selector
110-120V- 220-240V-
Combined
Output
R
L
27 28 30 3429 31 32 33
Number Description
27 Mains input socket with fuse folder
28 Grounding screw
29 Voltage selector switch
30 USB socket
Note: The USB front and rear panel sockets cannot be used at the same time
31 Media output: USB, SD or Bluetooth (stereo output)
32 Combined output: tuner, USB, SD or Bluetooth (stereo output)
Note: Due to priority output function, when the media (USB, SD, Bluetooth) is
active, the tuner audio output will be automatically muted
33 Tuner output socket (stereo output)
34 To connect the FM antenna (75Ohm)

10 en | Product introduction
TBA | draft | User manual Bosch Security Systems B.V.
3.3.3 Remote control
7
7 8 9
4 5 6
1 2
OK
3
0
9
10
13
12
11
15
17
14
16
1
2
3
4
5
6
8
Number Description
1 Select the music source: Tuner -> USB -> SD-> BT -> Tuner
2 Mute all music sources
3 Decrease or increase tone control items (EQ, bass, treble, balance and loudness)
4 Folder up
5 Repeat a track or a list
6 Increase and decrease volume of the selected music source
7 0-10: Digits for radio frequency preset radio station selection or playing a specific
frequency
8 Stores a specific frequency channel as favorite, in combination with the digit
keys, to specify the frequency of the channels
9 Display on/off for the selected music source
10 Tone control
11 Confirm selection
12 Folder down
13 Back to previous menu
14 Short press: next track
Long press: fast forward
15 Short press: previous track

Product introduction | en 11
Bosch Security Systems B.V. User manual TBA | draft |
Number Description
Long press: fast backward
16 Play or pause
17 Scan the FM radio stations
Display shows the frequency for the stations while scanning is in progress

12 en | Product function
TBA | draft | User manual Bosch Security Systems B.V.
4 Product function
4.1 FM Tuner
The FM tuner supports the frequency band of 87.5 to 108.0MHz.
– Connect the antenna
Operation
– To scan the radio channels, press the button from the device or remote. Long press
and to fine tune the frequencies. The display panel shows the frequency. During
power on, the last played FM channel starts playing.
– Press to select the previous channel or to select the next channel.
– To store a channel as preset (favorite):
1. Enter four digits for the frequency input. For example, if you enter 1023, the display will
show 102.3MHz.
2. Enter one or two digits for the specified station.
No further key operation takes place within the next 3seconds. Then the unit will store
the current frequency to the specified radio station.
1. Press RDS (Radio Data System) to enable the functions of the radio data system:
– PS: programmed service name;
– PTY: programmed type;
– CT: clock time and date.
2. Press for two seconds to exit the RDS function.
4.2 USB or SD
The USB or SD interface supports MP3 audio files stored on a USB flash memory device or an
SD card up to 32GB of exFAT or FAT32 file system.
– Insert an SD card or an USB flash memory device

Product function | en 13
Bosch Security Systems B.V. User manual TBA | draft |
1 2 3 4 5
6 7 8 9 10/0 RDS
Operation
– Select the source, USB device or SD, with the key of the device or from the remote.
– Press to play the track.
– If ID3 tags of the MP3 file are available, the following additional information will
scroll on the display:
File - < name >, Track - < name >, Artist - < name >, Album - < name >
–The LCD lower line will show, from left to right:
Track number (maximum 2000 tracks), mm:ss (track duration), audio data
compression rate.
– Press to switch between play or pause.
– In pause mode, the pause symbol (||) and the track playing time elapsed will be
shown.
– Press to select the previous track or to select the next.
– Press to stop.
– To play a list of tracks, organize the files in the folder. Browse the folder and press play.
– To repeat a track or list of songs, press . This button toggles as follows:
– 1st press: Current track will always be repeated (display shows: ONE)
– 2nd press: All tracks will be repeated, in sequence (display shows: ALL)
– 3rd press: All tracks will be repeated randomly (display shows: RND, ∞)
– 4th press: All tracks will play in sequence, but not be repeated (display shows: SEQ,
∞).
– For tone control, press . Refer to numbers 21 and 22 of
Front panel, page 8
for
adjustment.
This button toggles as follows:
– 1st press: EQ, and to be previous or next.

14 en | Product function
TBA | draft | User manual Bosch Security Systems B.V.
– 2nd press: Brass, adjust the treble with and .
– 3rd press: Treble, adjust the bass with and .
– 4th press: Balance, adjust the balance with and .
– 5th press: Loudness , adjust the loudness with and .
– 6th press: EQ, use and to choose between Rock, Jazz, Flat, Classic.
The selected option appears on the display.
4.3 Bluetooth
PRM-USTB has a Bluetooth receiver that can be connected to a Bluetooth-enabled music
source like a mobile phone, tablet, or computer.
Pair a device
1. Select the source of the PRM-USTB as Bluetooth.
If the device is already paired, the display will show Paired.
2. Enable Bluetooth on your device (mobile phone, tablet, or computer).
3. Select Bosch PRM-USTB from the list of discovered products.
The display on the PRM-USTB shows Pairing.
4. If the pairing is successful, the PRM-USTB display shows Paired.
Operation
Almost all operations work simultaneously from the PRM-USTB or from the paired device.
– Press to play the track.
– Press to switch between play or pause.
– Press to select the previous track or to select the next.
–Press to stop.
– For tone control, press . Refer to numbers 21 and 22 of
Front panel, page 8
for
adjustment.
This button toggles as follows:
– 1st press: EQ, and to be previous or next.
– 2nd press: Brass, adjust the treble with and .
– 3rd press: Treble, adjust the bass with and .
– 4th press: Balance, adjust the balance with and .
– 5th press: Loudness , adjust the loudness with and .
– 6th press: EQ, use and to choose between Rock, Jazz, Flat, Classic.
The selected option appears on the display.

Troubleshooting | en 15
Bosch Security Systems B.V. User manual TBA | draft |
5 Troubleshooting
Problem Possible cause Possible solution
The unit does not work. Power (plug) disconnected, the
unit is switched off or the mains
fuse is broken.
Insert power cord and switch
on the unit. Check the mains
fuse.
USB or SD storage
device not detected.
Device does not comply with
USB mass storage.
Use a device complying with the
class of USB mass storage
(some portable audio players
included in the class of image
devices are not supported. Also,
some flash card readers cannot
be detected)
USB hub in use. Some USB hubs will not
operate properly. Try a different
USB hub, or connect the
storage device directly to the
USB port. Also, if multiple
devices for USB storage are
connected through a USB hub,
only one of the devices will be
recognized.
Format not supported. Use only FAT, FAT32 and exFAT
file structure.
The connection with the unit has
been terminated because an
electrical current stronger than
allowable was applied to the
unit’s USB socket.
Wait several minutes. The rating
(allowable current) for this unit
is 500mA or less per USB port.
Use USB storage devices that
meet these standards. If you
have a USB storage device
connected through a
buspowered USB hub, connect
the USB storage device directly
to this unit port. If shorted a
long time the USB port will
become defective.
Partitioning of SD card is wrong.
Apart from SD, SDHC and class
of SD cards, it is also possible
that the card has a different
partition table than expected.
Reformat the USB or SD card
with a PC that has been known
to give good results.
MP3 tracks do not play.
Format not supported. MP3s are supported up to
320kbps.

16 en | Troubleshooting
TBA | draft | User manual Bosch Security Systems B.V.
Problem Possible cause Possible solution
No audio output.
The audio output cable has come
loose or has not been properly
plugged in.
Plug in audio cable properly.
The audio output control is not
working properly.
Check the output control
setting on the rear panel.
The audio output connectors or
plugs are dirty.
Wipe away dust or dirt and
reinsert the plug.
The selected source is currently
in pause or mute mode.
Press the play button or the
mute button.
The audio output is
distorted or full of
noise.
The audio output cable has not
been properly plugged in.
Connect the audio cable to one
of the three stereo RCA output
connectors.
Connectors or plugs are dirty. Wipe away dust or dirt and
reinsert the plug.

Technical data | en 17
Bosch Security Systems B.V. User manual TBA | draft |
6 Technical data
Electrical
Mains power supply
Voltage range 110~120VAC +/-10%, 50~60Hz
220~240VAC +/-10%, 50~60Hz
Power supply fuse 0.63A/250V
Power consumption 15W max.
FM tuner
Total harmonic distortion (1kHz) <=0.5%
FM frequency range 87.5 ~108MHz
Frequency response 50Hz ~12kHz +/-1dB
Channel separation (1kHz) >=50dB
Signal-to-noise ratio >=25dB
FM input sensitivity 26dBu
Antenna impedance 75Ohm
Audio output level 1.5Vrms +/-1dB at 10kOhm load
USB or SD source
Frequency response 50Hz ~ 20kHz +/-1dB
Signal-to-noise ratio >=80dB
Total harmonic distortion (1kHz) <=0.5%
Channel separation >=50dB
Audio output level 1.5V rms +/-1dB at 10K ohm load
USB output current limit 500mA
Maximum memory size of USB and SD card 32GB
Supported file structure FAT, FAT32 and exFAT
Mechanical
Unit dimensions (HxWxD)
With brackets:
Without brackets:
44x82x250mm (1.73x18.97x9.84in)
42x430x250mm (1.65x16.93x9.84in)
Unit mounting Stand-alone, 19" rack (19" wide, 1U high)
Unit color Black RAL 9005
Unit weight Approx. 3.6kg
Remote control dimensions (HxWxD) 20x52x156mm (0.80x2.05x6.14in)
Remote control weight: (without batteries) 120g

18 en | Technical data
TBA | draft | User manual Bosch Security Systems B.V.
Environmental
Operating temperature 0°C - 45°C
Storage temperature -40°C - 70°C
Relative humidity (non-condensing) < 90%
1. Adapter shall be installed near the equipment and shall be easily accessible.
2. The plug considered as disconnect device of adapter.
3. The product shall be connected to a USB interface of version USB2.0 or higher.
Hereby, Bosch Security Systems B.V declares that this product is in compliance with essential
requirements and other relevant provisions of Directive 2014/53/EU. This product is allowed to be
used in all EU member states.
Remark:

Technical data | 19
Bosch Security Systems B.V. User manual TBA | draft |

20 | Technical data
TBA | draft | User manual Bosch Security Systems B.V.
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