MRJ21 Cable Assemblies
Stewart Connector’s MRJ21 cable assembly products are designed to support increased
patch panel density in telecom and premise wiring applications. This modular cabling platform
supports network applications such as Gigabit Ethernet, Voice over Internet Protocol (VoIP),
and Power over Ethernet (PoE). Cable connection options include left or right 45 degree
angle, or 180 degree straight cable exit to facilitate various routing schemes to component
racks. In addition, these cable assemblies allow a connection migration path from legacy
products including punch down blocks, modular plug breakouts, and standard RJ21 to MRJ21
assemblies.
Designed with a die cast backshell for shielded applications, Stewart’s MRJ21 cable
assemblies are durability tested to 500 cycles to ensure unsurpassed quality and performance.
Jackscrews provide a secure cable connection while the robust boardlock design allows
superior PCB strain relief. For additional product information visit our Ethernet connectivity
webpage at www.stewartconnector.com.
Key Features & Benefits
• Suitable for Gigabit Ethernet, PoE and VoIP
• High density telco-style, double-blade
design allows 1.5 to 3 times the density of
2x6 modular stacked RJ45 jacks.
• 1mm pair spacing, 1.5 mm pair-to-pair
spacing
Part Number*
MRJxxxxAF-A
MRJxxxxDD-A
MRJxxxxAD-A
MRJxxxxDF-A
• Designed to meet or exceed CAT5e
performance standards
• Available in both unshielded or low EMI
shielded configurations
• Durability tested to 500 cycles – see www.
belfuse.com for data sheet(s)
Cable Type
CMR
CMR
CMR
CMR
CMP
CMP
CMP
CMP
Description
6 RJ45 Plugs to MRJ21 Angled
MRJ21 Straight to MRJ21 Straight
6 RJ45 Plugs to MRJ21 Straight
MRJ21 Straight to MRJ21 Angled
6 RJ45 Plugs to MRJ21 Angled
MRJ21 Straight to MRJ21 Straight
6 RJ45 Plugs to MRJ21 Straight
MRJ21 Straight to MRJ21 Angled
Shielding
Unshielded
Unshielded
Unshielded
Unshielded
Unshielded
Unshielded
Unshielded
Unshielded
MRJ21 cable assemblies showing connector options:
MRJ21 180 degree straight and 45 degree angle
connectors as well as multiple RJ45 connectors.
MRJ21 is a trademark owned by TE Connectivity used here under license.
MRJxxxxAF-C
MRJxxxxDD-C
MRJxxxxAD-C
MRJxxxxDF-C
* xxxx denotes desired cable length from 0.5 to 100.0 meters, in 0.5 meter increments.
Typical part numbers are listed. For configurations not shown here, please consult factory.
Stewart Connector
11118 Susquehanna Trail South
Glen Rock, PA 17327-9199 USA
+1 717.235.7512
techhelp@belf.com
stewartconnector.com
US/LIT-MRJ21v01.15
RoHS
Compliant
© 2015 Bel Fuse, inc.
MRJ21 Cable Assemblies
Stewart Connector’s MRJ21 48–port straight patch panels are designed to be mounted onto a standard 483–mm [19–in.] Electronic Industries Alliance (EIA)
rack or equipment cabinet. The Stewart patch panels are available in both 2 pair and 4 pair configurations. The 2 pair option supports speed at 10Base-T and
100 Base-T while the four pair configuration supports higher speeds at 1000 Base-T.
The core of the system is the innovative MRJ21 high density and high performance connector. It integrates reliable connections for up to 6 GigaBit Ethernet
(1000Base-T) Channels in one plug & go interface and is therefore supporting fastest installation and highest flexibility. The shielded MRJ21 Trunk Cables
are completely pre-terminated and factory tested, eliminating the need for testing after installation. The Trunk Cables interconnect a wide range of shielded
MRJ21 Patch Panels, which are available in highest density up to 48 RJ45 Port on 1U. The Panels integrate in the rear side the MRJ21 receptacles and to the
front RJ45 interfaces compliant with the latest revisions of the international standards like ISO/IEC 11801, EN 50173 and EIA/TIA 568.
Key Features & Benefits
• Suitable for Gigabit Ethernet, PoE and VoIP
• High performance copper cabling solution
• High density, small form factor connectivity
• Modular, pluggable design
• 4 pair MRJ21 patch panels support
applications which use four or fewer pairs,
Including 10Base-T, 100 Base-T and 1000
Base-T
• 2 pair MRJ21 patch panels support
applications which use two or fewer pairs
including 10Base-T and 100 Base-T
Part Number
MRJ21 Patch Panel, Standard, 48-Port, for 2-Pair (10/100/
BASE-T) Applications 4-Pair (1000 Base-T) Applications
ASY21000-005
ASY21000-006
Description
48 Port 10/100 Base-T 1U Patch Panel
48 Port 10/100/1000 Base-T 1U Patch Panel
MRJ21 is a trademark owned by TE Connectivity used here under license.
RoHS
Stewart Connector
11118 Susquehanna Trail South
Glen Rock, PA 17327-9199 USA
+1 717.235.7512
techhelp@belf.com
stewartconnector.com
US/LIT-MRJ21v01.15
Compliant
© 2015 Bel Fuse, inc.