KNOP MR902 User manual
©KNOP Elektronik A/S
EBRUGERVEJLEDNING GÆLDER FOR SOFTWARE VERSION
User manual
MR902
Master Repeater MR902 V1.1
©KNOP Elektronik A/S
2
Table of contents
Warning and safety instructions: 3
Intended use 4
Installation 4
Backup 5
Commissioning 5
Main menu 7
Main menu - Receiver 11
Main menu - Settings 12
Set response time 13
Edit name 13
Size of the system 14
Maintenance 17
Cleaning 17
Technical data 18
Explanation of symbols and approvals 19
Master Repeater MR902 V1.1
©KNOP Elektronik A/S
3
Warning and safety instructions:
●The battery in this product complies with the relevant IEC safety standards
for batteries.
●Please read the safety instructions on the power supply before use.
●The power supply unit must meet the relevant IEC safety standards.
●The battery must not be replaced, and the product must be sent for repair.
●The product must not be disassembled. Risk of electric shock!
●Read the intended use before putting it into service.
Master Repeater MR902 V1.1
©KNOP Elektronik A/S
4
Intended use
MR902 is the primary unit of our Master Repeat System.
Together with RP902, the MR902 will extend the range and functionality of the system and
devices. Up to 14 repeaters can be added to a system.
As a stand-alone unit, it adds new functionality to the devices.
Installation
MR902 only needs to be connected to a 230V socket. There are no cables between the units.
The product switches on automatically when it is connected to the mains.
Light emitting diode - LED
The LED is either green or red when switched on.
RED: Error, not connected.
RED flashing: Battery mode.
GREEN: Connected, everything works fine.
GREEN flashing: Confirmation.
NO light: The device is switched off.
Master Repeater MR902 V1.1
©KNOP Elektronik A/S
5
Backup
MR902 has an internal backup battery to keep the system running in the event of a power failure.
The battery lasts for a few hours. If necessary, the battery can be recharged (full charge takes
about 24 hours). The battery is not intended to be used as a replacement. Contact your retailer for
battery service.
Commissioning
Before using MR902, the system must be configured for the current system.
Important: It is important that the clock is set on the MR902 as it is the system clock. Other
products will be set after MR902 system clock. See main menu.
Note: The display language is in English only.
Setting up a system is quite simple.
●First determine the number of repeaters. In most cases, it is fine if you have no more than 25
meters between them. It depends on the building material, is it wood, concrete etc. You can
check the connection level in the menu. (menu reports) We recommend above 3.0, otherwise
you can just add an extra RP902.
●For example, if you have 5 repeaters, you have set the system size to 6, which is closest to the
menu settings/system size.
●When you need to add repeaters to the system (menu repeaters / add new)
●Wait for about one minute per repeater. The system will automatically figure out how to make
the connections between them. When all RP902 and MR902 units are ready, the green LED
will light up. This is done every time the system is switched on. When the system is running
normally, the system often checks the interconnection in the background.
●The basic system is now working. The installation of RP902 and MR902 is now complete.
●Receivers must now be added, this is done in the receiver menu when setting up the system or
via KNOPtool when connecting to MR902. See the user manual for your receiver.
●KNOPtool can be used to configure the whole system as well as the receiver/transmitter. See
the manual for installation of KNOPtool. This way you have a complete copy of the system
setup.
Master Repeater MR902 V1.1
©KNOP Elektronik A/S
6
Start screen
The unit must be connected to a wall outlet before use.
The system clock normally appears on the display.
The system name "if coded" is shown at the top. By default, MR902.
Set the clock !
Master Repeater MR902 V1.1
©KNOP Elektronik A/S
7
Main menu
If you press and at the same time, either on the lock screen or on the home screen, it opens
the main menu.
General information about the menu function:
Operation
Press to move the green arrow either up/down or right/left in the menu.
Press to cancel the selection or exit the menu.
Press to accept the current choice.
Note: After about 15 seconds of inactivity, the menu returns to the home screen.
Main menu - Repeaters
In this menu it is possible to add, modify, delete and check the status of the repeater.
Select Repeaters and press to confirm. Press to exit.
Add a new repeater, press "Add new".
This means that a new repeater is added to the system.
Select "Add new" and press to confirm. Press to
exit.
Master Repeater MR902 V1.1
©KNOP Elektronik A/S
8
Please wait, the MR902 will search for a new RP902 device.
To add the RP902 device found, press to confirm. Press to exit.
The display has now been added to RP902 unit. The LED on RP902 will also glow green to show
that it is connected.
In this case, the added RP902 is shown on the top line as repeater "1".
"1:5.0Y 9.9%", where 1=RP902 number, 5.0Y=antenna quality, 9.9%=rebroadcasts.
For a newly started system, the retransmissions will show a higher value due to the set
transmissions at start-up, if needed you can select "Reset statistics in menu".
If you select a repeater by pressing on the repeater you want to view, you will get a list with
information about the repeater.
ID: The ID or serial number of the selected repeater.
Err: Transmission error.
OK: Call handled.
RX: Receive level. Higher numbers are better, e.g. -30 dBm is better than -40 dBm.
Link: Connected for example to a Master or another RP902.
Discon: Number of interruptions.
Noise: Noise level. Lower numbers are better, e.g. -112 dBm better than -100 dBm.
Master Repeater MR902 V1.1
©KNOP Elektronik A/S
9
Restored status.
This clears all status logs etc.
Select "Reset status" and press to confirm.
Edit name
Edit the name of the repeater. The name is not used in the system, but it is for your information.
The name can be the location of the repeater.
Select "Edit name" and press . Press to exit.
Press to return to the Repeater menu.
Press to change the letter.
Press to select a letter.
Press to choose to delete a letter.
Press for about 3 seconds to close the menu.
To save the new name, select the symbol ◆and press .
Master Repeater MR902 V1.1
©KNOP Elektronik A/S
10
Delete
Remember to erase a repeater unit if it is not used or is replaced. An idle or replacement can slow
down the system.
Select delete and press . And press to leave.
Pressing confirms that it should be deleted. Press to leave.
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