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Page: 16 Model MRC88
© 2003 Xantech Corporation
23. Source Loop-Thru Connections (8).
a) Audio Loop-Thru. Parallel Connection to Audio Inputs for connecting Audio Source to another MRC-
88 in Expanded Mode or to other local devices. This is not an active output.
b) Video Loop-Thru. Buffered Video Connection for connecting Input Video Source to another MRC-88 in
Expanded Mode or to other local devices. NOTE: Since this is a Buffered video connection, this loop-
thru is not active when POWER is removed from the MRC88
24. Zone Audio Inputs (8). 3.5mm Stereo Mini Phone Jack for Zone specific stereo audio Server Inputs. Zone
Audio Inputs override rear panel, Source 1 connection. Allows each of the 8 Zones to have a dedicated
Server Output by selecting Source 1 on keypad.
25. Zone Audio Pre-Amp Out (8). Gold-plated RCA Jacks for connecting Zone Audio Output to an external
amplifier. For use with applications where either more power is required for Zone or passing to a Dolby Pro
compatible receiver for theater quality audio in zone.
26. IR Emitters (1-8). 3.5mm Mono Mini Phone Jacks. These mini jacks are for the connection of IR emitters to
control individually the eight source components. These jacks are “steerable” with Dragon Drop-IR™
Software for IR Routing and Priority Lockout. IR received from a Zone will be routed to the emitter port
corresponding to the Zones active source selection. Can also be configured as 8 common emitter ports
(ADVANCED only) (See: Section 5: Controller Options Programming).
27. IR Emitter (Common). 3.5mm Mono Mini Phone Jacks. Single Common IR Output that can be used to
control devices such as Multi Zone Audio Server, motorized drapery systems, TV lifts and lighting systems
or any other IR controlled component. IR Received from any Zones Keypad will be output the Common
emitter port regardless of source selection.
28. Zone IR Out (8). 3.5mm Mono Mini Phone Jacks. IR received from a Zone will always be passed to the
corresponding Zone IR output. This can be used to control Zone Specific components not located in the
zone.
29. Com Port. DB9 RS232 Control Port allows full control from an external PC component of all Internal
Amplifier Commands of the MRC88 Controller and the ability to trigger programmed IR Macros for control of
devices connected to the Controllers emitter ports. The Com Port can also be used in the reverse to send
ASCII/Hex commands OUT to control an external RS232 device directly from the MRC88 Keypad and/or
handheld remote.
30. Expansion Port. DB15. Allows two MRC88’s to be connected together, via included Expansion Cable, to
provide an 8 Source/16 Zone system with full control between units.
31. User Replaceable Fuse. 10 AMP 250 VAC, Slow Blow Fuse (Domestic version). 5 AMP 250 VAC, Time-
Lag Fuse (European version).
32. AC Power Input. Standard IEC 3-Conductor AC Line Cord Receptacle for plug-in of a 3-conductor power
line cord.
33. Grounding Screw. “Knurled Screw” provides a means for chassis connection to earth ground or to other
Audio/Video products to aid in the reduction of system noise.
34. Power On/Off LED. This LED indicates the Main Power ON/OFF Condition of the MRC88 Controller.