Rotel operation manual IR Connections, For 2 RMZ-955s 5 to 8 zones, For 3 RMZ-955s 9-12 zones

INSTALLATION: MULTI-CONTROLLER SYSTEMS

Then, using standard shielded RCA-RCA audio interconnet cables, connect Source 1’s “loop through” outputs on the first RMZ-955 “A” to the corresponding Source 1 inputs on the sec- ond RMZ-955 “B”. Repeat this procedure for all four sources.

If a system requires a third RMZ-955, repeat this procedure but, this time, connect the “loop-though” source output on the sec- ond RMZ-955 “B” to the corresponding input on the third RMZ-955 “C” and so for a fourth controller “D”.

NOTE: It is important to observe proper channel continuity when connecting source components to more than one RMZ-955.

IR Connections

Systems with multiple RMZ-955 controllers follow generally the same approach to distributing IR signals to the source compo- nents as a single RMZ-955 system. Therefore, review the section on IR installation, particularly on the choice of using the front- panel flood emitter or the back-panel “remote” emitter connec- tions.

When 2 or more RMZ-955s are used in the same system, we sug- gest that you connect them so that only the first RMZ-955 distrib- utes IR commands to the source components and that the IR emitter functions of all additional RMZ-955 controllers is dis- abled. This avoids potential interference leading to erratic operation, particularly when using the front panel IR flood emit- ters.

Note: This is a suggestion only and not a hard and fast rule. There may be some unusual system layouts which benefit from multiple RMZ-955s distributing IR to the sources. This option is covered below as an exception to the standard practice.

The general approach to configuring IR connections for multi- controller systems involves three steps:

a)Configure the first RMZ-955 “A” to distribute IR codes to the sources (either through its front-panel flood emitter or its “re- mote” IR emitters as described in the section on installing single controller systems.

b)Disable the flood emitter on all other RMZ-955 controllers by re- moving the “TX-Form” jumper connecting Pins 2 and 3.

c)Relay IR codes from additional RMZ-955 controllers to the first one by installing a series of jumper wires connected to the “TX- Form” terminal block as outlined below.

Use the following connections for multiple RMZ-955 systems:

For 2 RMZ-955s (5 to 8 zones):

•Remove the jumper between terminals 2 & 3 of the TX FORMAT block on RMZ-955 “B” to disable its IR flood emitter. Leave the jumper in place on RMZ-955 “A” if you are using its front-panel flood emitter. Remove the jumper if you are using remote IR emiiters con- nected to the back panel of RMZ-955“A”.

•Link IR signals to the first controller by connecting terminal 3 of the RMZ-955 “B” TX FORMAT block to terminal 4 on RMZ-955 “A”. This completes the IR signal link to the IR flood or “remote” emitter on RMZ-955 “A”.

RMZ-955		RMZ-955
	"A"		"B"
TX-FORMAT		TX-FORMAT
1 2 3 4 5 6		1 2 3 4 5 6

Use this jumper arrangement with 3 RMZ-955 controllers. Disables the IR flood emitters on all but the first controller. Remove gray jumper if using back panel IR repeaters from the first RMZ-955 instead of the flood emitter.

For 3 RMZ-955s (9-12 zones):

•Remove the jumpers between terminals 2 and 3 of the TX FOR- MAT blocks on RMZ-955 “B” and “C” to disable their flood emit- ters. Leave the jumper in place on the first RMZ-955 “A” to use its front-panel flood emitter. Remove this jumper as well do dis- able the flood emitter when using remote IR emitters.

•Connect terminal 3 of the RMZ-955 “C” TX FORMAT block to terminal 4 on RMZ-955 “B”.

•Connect terminal 3 of the RMZ-955 “B” TX FORMAT block to terminal 4 on RMZ-955 “C”. This completes the signal link to the IR flood emitter on RMZ-955 “A” from the other two RMZ-955s.

RMZ-955		RMZ-955		RMZ-955
	"A"		"B"		"C"
TX-FORMAT		TX-FORMAT		TX-FORMAT
1 2 3 4 5 6		1 2 3 4 5 6		1 2 3 4 5 6

Use this jumper arrangement with 3 RMZ-955 controllers. Disables the IR flood emitters on all but the first controller. Remove gray jumper if using back panel IR repeaters from the first RMZ-955 instead of the flood emitter.

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