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MediaMaster® Wired Remote Controller

Product Description

The MMR-20 is a water-resistant  
(IP67 rated), wired remote controller designed 
to add auxiliary control functionality to 
MediaMaster® source units. Depending on 
your system layout, you may add up to three 
MMR-20 remote controllers to a single source 
unit. Each MMR-20 can be connected up to 
75 ft. (22.8 m) away from its source unit. A 
Y-splitter and remote extension cables are 
sold separately and available in different 
lengths to suit different mounting locations. 

 

What’s Included

(1) MMR-20 wired remote controller
(1) Standard gasket 
(1) Lipped gasket (optional)
(2) Stainless steel threaded studs
(4) Stainless steel nuts (7 mm)
(4) Stainless steel washers
(1) Aluminum C-bracket
(1) User Manual

Safety Considerations

•  While this product is designed to be water-

resistant, it should never be submerged 
under water or subjected to high-pressure 
water spray.

•  Do not mount in areas of extreme heat.
•  Ensure this product is securely installed so 

that it does not come loose in the event 
of a collision/sudden jolt or as a result 
or repeated vibrations during normal 
operation.

•  Check before drilling to make sure that you 

will not be drilling into a fuel tank, gas/brake 
line, wiring harness, or other vital system.

•  Secure all wiring as needed, using cable 

ties or wire clamps to protect them from 
moving parts and sharp edges.

 

 

Mounting & Installation

A 2-inch (50 mm) hole is required for 
mounting, along with adequate rear access 
to secure/tighten the hardware. The included 
hardware accommodates installations in flat 
panels up to 1.5-inches (38 mm) thick.  

The C-bracket is designed with break lines 
to allow adjustment for different mounting 
panel thicknesses. To remove a leg section, 
use pliers and bend back and forth at 
a break line to separate. Be mindful of 
resultant sharp edges and file if necessary.

 

Make sure to carefully plan the routing of 

the remote’s connection cables prior to 

cutting or drilling any panels. 

1.  Select an appropriate mounting location 

and cut a 2-inch (50 mm) hole using an 
appropriate tool/hole saw. 

2.   Place the standard gasket onto the rear 

of the remote. For retrofit installations, 
the lipped gasket may be used where an 
existing mounting hole is slightly larger 
than 2-inches.

3.  Apply thread sealer (not included) onto  

the threaded studs and insert them into 
the inserts at the rear of the MMR-20, and 
hand tighten.

4.   Install a nut and washer near the middle 

section of each stud (see diagram) and 
place the MMR-20 into the mounting hole.

5.   From behind the mounting panel, slide 

the C-bracket onto the threaded studs and 
press it forward, towards the MMR-20

6.  Apply thread sealer and adjust the position 

of the previously installed nuts and 
washers to support the C-bracket while 
still allowing the legs to of the C-bracket 
to press against the rear of the mounting 
panel. 

7.  Apply thread sealer and install a remaining 

nut and washer onto each stud. Tighten 
the C-bracket to the mounting panel. 

Lipped 

Gasket 

(optional)

Standard 

Gasket 

(required)

Remove 

leg sections 

as neeeded

MMR-20

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