Installation and Operating
Instructions MR173 Infrared
Controller
Congratulations and thank you for choosing this
Knöll product. The MR173 is an infrared signal
controller designed to be used with the MVP64 and
Grande controller-amps as well as the Ultimo and
MR640 controllers. It is used when zones or rooms
music and sound are to be individually controlled by
an infrared receiver (and remote control) or
external computer without the use of a keypad.
Each room needing control requires an infrared
receiver, usually located in that room. Commands
from the RB8 remote control (or remotes cloned
with the RB8 commands) for each room are
detected and converted to the digital language the
controller can understand for further action.
Infrared pass through is always active with the
MR173, so most other brand remote control signals
can be used to control source equipment. In certain
installations the MR173 is used to interpret
computer generated commands for each zone or
room using an emitter output without a remote
control or infrared receiver.
Each MR173 is configured for three room inputs.
Any or all inputs can be used in an installation.
Inputs not being used can still accept keypads. The
three infrared receivers connected to the MR173
are conventional three wire styles. The MR173 can
accept up to three individual two-wire emitter
inputs. The MR173 is connected to the MVP64,
MR640 and Grande controllers by a single cat 5
wire with RJ45 connectors (not included). The
MR173 provides 12VDC power for the infrared
receivers.
Supported commands are:
Power on then select
source 1, 2, 3 or 4 and set volume at about 35%;
select source 1, 2, 3, or 4;
mute
;
unmute; volume up;
volume down, this room power off and all room
power off (hold remote power button for 5
seconds).
Installation
The MR173 should only be installed when the amp-
controller is powered off and the mains power is
unplugged. The MR173 is connected to the MR640,
MVP64 or Grande controller with a single cat 5 wire
using all 8 wire conductors and RJ45 8/8 plugs
(installer provided).
Power for the MR173 and the connected infrared
receivers is from the amp-controller and an
external power supply is not required.
Note: A 3-wire infrared receiver connected to a
MR173 and a MR60 keypad cannot both be installed
to control sound in the same room. The MR60
keypad has an infrared receiver built into it.
The MR173 can be located anywhere convenient,
usually near the controller.
Install the 3 wire infrared receivers in the room(s)
requiring them. Bring the wires to the location of
the MR173. Connect the wires from the infrared
receiver located in the first room to the blue screw
terminal labeled Room 1. V means 12VDC, G means
ground and S means signal (or to emitters). Verify
the connections.
Emitter outputs from external controllers are
connected to the S and G terminals only. If you are
connecting one or two other rooms to this MR173,
then connect the second room wires to the blue
screw terminal labeled Room 2. If you are
connecting a third room to this MR173, then
connect the third room wires to the blue screw
terminal labeled Room 3.
