MRJ21 cassette assemblies listed in Figure 1 are designed to be

MRJ21 cassette assemblies listed in Figure 1 are designed to be
®
™
Dec. 2016
Rev G
Figure 1
MRJ21™ cassette assemblies listed in Figure 1 are
designed to be installed into Patch Panel 1479451–1.
Back Cable Manager Kits 1933352–[ ] (shown in
Figure 1) can be used to support the trunk cable. The
patch panel and cable manager kit are designed to be
mounted onto a standard 483–mm [19–in.] Electronic
Industries Alliance (EIA) rack or equipment cabinet.
Read these instructions thoroughly before starting
installation.
Reasons for reissue of this instruction sheet are
provided in Section 5, REVISION SUMMARY.
To obtain information on CommScope
products,visit the CommScope website at
www.commscope.com
The front of each cassette assembly features two
plungers used to secure the assembly to the patch
panel and a chamfered corner that indicates Port 1.
The shielded cassette also has a 1/4–turn fastener
used for bonding. The back of each cassette
assembly features an MRJ21 receptacle that accepts
the connector of the trunk cable. See Figure 1.
Using the mounting screws, mount the patch panel
and cable manager kit onto the rack, then proceed as
follows:
To obtain information on CommScope® products,
contact your local CommScope® account
representative, PartnerPRO™ Network Partner
or visit our website at www.commscope.com
© 2016 CommScope, Inc.
All Rights Reserved
This product is covered by one or more U.S.
patents or their foreign equivalents. For patents, see
www.commscope.com/ProductPatent/ProductPatent.aspx
1. Pull the plungers of the cassette away from the
face of the cassette.
2. Facing the front of the patch panel, align the
cassette with an opening in the patch panel so that
the chamfered corner is on the left (as shown in
Figure 1). This orientation is recommended so that
Port 1 of all cassettes are located at the same
position.
For port–to–cable pair cross–reference, refer to
Figure 3. Port numbers are based on the orientation
of the cassette assembly.
Note that for the shielded cassette, the 1/4–turn
fastener must align with the hole above the
mounting holes in the patch panel.
3. Slide the cassette into the opening of the patch
panel then push the plungers into the holes in the
patch panel. An audible click indicates that the
plungers are fully seated. For the shielded
cassette, using a small cross–recessed tipped
screwdriver, turn the 1/4–turn fastener clockwise to
the locked position.
4. Plug the connector of the trunk cable into the
receptacle (at the back) of the cassette. Refer to
Figure 2. Make sure to align the keying features of
the connector and receptacle. Ensure that the
connector is fully seated, then using a small
cross–recessed tipped screwdriver, turn the jack
screws of the receptacle clockwise and tighten to a
maximum torque of 0.23 Nm [2 lbf–in.].
5. Using cable ties or similar fasteners, attach the
trunk cable to the tie–down bar. It is recommended
to maintain a minimum bend radius of 50.8 mm
[2 in.] when securing and routing cables. See
Figure 2.
Figure 3
Revisions to this instruction sheet include:
Figure 2
Corrected part numbers for shielded cassette
assemblies
Rebranded to CommScope
G
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