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Page: 76 Model MRC88
© 2003 Xantech Corporation
2. Any RS232 Commands placed on any keypad will be executed out of the PRIMARY Controllers rear
RS232 Connector ONLY regardless of which zone is issuing the command. This means if interfacing to
another RS232 device, this device will need to be connected to the PRIMARY Controllers RS232 port.
Primary MRC88 Controller/Amplifier
Secondary MRC88 Controller/Amplifier
Sources 1 through 8
From Source
Component 1
From Source
Component 8
From A/V loopthroughs on Primary Controller
Sources 1 through 8
To IR Emitters
at A/V
Equipment
Expansion Cable
from Primary
to Secondary
Controller
Sense
Inputs
1 to 8
Primary
Only
Figure 42: Expanded Controller Connections