
NOT ALL
RJ-45S ARE CREATED EQUAL
The RJ45 is a Highly Engineered Interconnection System
Beware of substandard, non-compliant, and counterfeit RJ45's coming in from the far East.
Know the standards - Know the specs - Insist on compliance - Know your suppliers
WE ENCOURAGE YOU TO "KNOW YOUR SUPPLIERS"
Just Say NO to:
Somewhere along the line, either through COST PRESSURES, OUTSOURCING, MATERIAL SELECTION, PRODUCT DESIGN, or a host of other reasons, some RJ45 modular connector manufacturers have strayed from the specifications as set forth by the Standards Bodies (such as ACTA, ASTM, EIA, FCC, IEC, IEEE, ISO, TIA and UL). As a result, there is a growing problem in the field relating to POROSITY, OXIDATION, CORROSION, CONDUCTIVITY, CONTACT RESISTANCE, INTERMITTENCIES AND LOSS OF SIGNAL that have become more pervasive recently.

Industry's Best Kept Secret
"Moving at the Speed of Right"

RJ45 AUTHORITATIVE EXPERTS WITH OVER 135 PATENTS
Why Not Go To The Best In The First Place?
Sentinel Connector Systems is the premier "MADE IN USA" manufacturer of RJ-45 Plugs and Jacks. Bob Brennan, Founder, and President of Sentinel Connector (former Founder/President of Stewart Connector), has been involved with RJ45s since its inception. He was part of the team that built the first RJ45 back in the 1970s, consulting with Hardesty and Gustin, who worked at Western Electric creating the FCC Part 68 Specification (superseded by ANSI/TIA-1096-A). Bob and the Sentinel East Team have over 135 foreign and domestic patents relating to the RJ45 Interconnect. Significant Patents include the MagJack, a Proprietary Gold Plating Process called Spot Plating, and a Composite Carbon/Graphite Fiber Conductive Load Bar.