Extron Electronics MR and MR D Series - Manual (Page 2)

© 2008 Extron Electronics. All rights reserved.
MR and MR D Series Installation Guide
Modifying a Mud Ring
Each mud ring size can be modified to make the mud ring one gang-size larger or smaller (figure 3). You can resize the
mud ring by either adding a top and bottom segment, removing a top and bottom segment (2- through 7-gang size only), or
replacing one size top and bottom segment with another.
Segment Assembly Screws
Small Top/bottom Segment
MR 200 2-gang Mud Ring MR 200
Modified to be 3-gang Mud Ring
2 Small Top/bottom
Segments 2 Small Top/bottom Segments
Figure 3 — Modifying an MR mud ring
N The 1-gang mud ring cannot be made smaller.
Modify the mud ring as follows:
1 . As necessary, remove the segment assembly screws that hold the segments together, and add, remove, or replace a top
segment and a bottom segment.
N For example, to modify an MR 300 to be a 4-gang mud ring, add one small segment on the top and bottom. To modify the
same MR 300/MR 300D to be a 2-gang mud ring, replace the large segments on the top and bottom with small segments.
2 . Replace and install new segment assembly screws as necessary.
Part Numbers
The MR/MR D Series mounting brackets (mud rings) are available in the following configurations:
Name Description Part number
MR 100 1-gang mud ring, black or white 70-519-12 or -13
MR 100D 1-gang Decora ® style mud ring, black 70-581-12
MR 200 2-gang mud ring, black or white 70-519-22 or -23
MR 200D 2-gang Decora style mud ring, black 70-581-22
MR 300 3-gang mud ring, black or white 70-519-32 or -33
MR 300D 3-gang Decora style mud ring, black 70-581-32
MR 400 4-gang mud ring, black or white 70-519-42 or -43
MR 500 5-gang mud ring, black or white 70-519-52 or -53
MR 600 6-gang mud ring, black or white 70-519-62 or -63
MR 700 7-gang mud ring, black or white 70-519-72 or -73
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