Model MRC44 Page: 5
© 2002 Xantech Corporation
SYSTEM OVERVIEW
The MRC44 is a four-source four-zone audio/video distribution and control system. The System is comprised of
a Control Amp, four LCD Keypads, and four 283M IR Emitters. Together the Control Amp and the Keypads
make up a multi-room A/V system. The Control Amp acts as the Server and the Keypads act as the Clients.
The end users interact with the Keypads in order to control all aspects of Audio/Video Distribution and Control.
This System allows the end user to accomplish the following: 1) Distribute amplified Stereo Audio and
Composite Video from four independent Sources to four separate Zones. 2) Control the Volume, Mute, Bass,
Treble, and Balance for each of the four internal Stereo Audio Amplifiers. 3) Control most standard source
components via IR commands. Two Control Amps can be linked to create systems with up to eight zones.
POWER
CH
CH
STATUS
SELECT
PLAY
STOP
PAUSE
FFREW
VOL
VOL
MUTE
Zone 1
POWER
CH
CH
STATUS
SELECT
PLAY
STOP
PAUSE
FF
REW
VOL
VOL
MUTE
POWER
CH
CH
STATUS
SELECT
PLAY
STOP
PAUSE
FFREW
VOL
VOL
MUTE
Zone 2
POWER
CH
CH
STATUS
SELECT
PLAY
STOP
PAUSE
FF
REW
VOL
VOL
MUTE
POWER
CH
CH
STATUS
SELECT
PLAY
STOP
PAUSE
FFREW
VOL
VOL
MUTE
Zone 3
POWER
CH
CH
STATUS
SELECT
PLAY
STOP
PAUSE
FF
REW
VOL
VOL
MUTE
POWER
CH
CH
STATUS
SELECT
PLAY
STOP
PAUSE
FFREW
VOL
VOL
MUTE
Zone 4
POWER
CH
CH
STATUS
SELECT
PLAY
STOP
PAUSE
FF
REW
VOL
VOL
MUTE
Optional
External IR
Receiver
Zone
Status
Audio
&
Video
Serial
RJ45-
RS422
& IR
Zone 2
Video
Monitor
&
Speakers
To Built-In
Keypad
IR Receiver
Zone
Status
Audio
&
Video
Serial
RJ45-
RS422
& IR
Zone 3
Video
Monitor
&
Speakers
To Built-In
Keypad
IR Receiver
Zone
Status
Audio
&
Video
Serial
RJ45-
RS422
& IR
Zone 4
Video
Monitor
&
Speakers
To Built-In
Keypad
IR Receiver
Zone
Status
Audio
&
Video
Serial
RJ45-
RS422
& IR
Primary
Keypad
Zone 1
Video
Monitor
&
Speakers
To Built-In
Keypad
IR Receiver
Audio/Video
Source 2
IR
Power
Sense
Audio
&
Video
Audio/Video
Source 3
IR
Power
Sense
Audio
&
Video
Audio/Video
Source 4
IR
Power
Sense
Audio
&
Video
Audio/Video
Source 1
IR
Power
Sense
Audio
&
Video
Common IR
Common Status
IR Learning Eye
DB9 / RS232
Optional
Secondary
Keypad
Primary
Keypad
Optional
Secondary
Keypad
Primary
Keypad
Optional
Secondary
Keypad
Primary
Keypad
Optional
Secondary
Keypad
FOUR ZONE - FOUR SOURCE AUDIO/VIDEO CONTROLLER/AMPLIFIER
MRC44
1234
POWER
Figure 1 - System Block Diagram
