Keystone jack is a female connector used in data communications, particularly local area networks (LANs). The jack is usually mounted in a wall plate or patch panel.

A principal advantage of keystone connectors is their versatility. Several types of keystone jack can be mounted on a single patch panel. They are available in unshielded and shielded forms, and can accommodate cords and cables having various numbers of conductors.
Keystone modules have a rectangular face of 14.5 mm wide by 16.0 mm high and are held in place with flexible tabs. This allows them to be snapped into a mounting plate with correspondingly-sized rectangular holes, called ports. All keystones, regardless of the type of jack they carry, are interchangeable and replaceable. This provides much flexibility in arranging and mounting many different types of electrical jacks in one plate or panel without requiring customized manufacturing.

Network Modular Jack of UTP CAT5e 180 Degree RP-KJ180-5EU
Specifications:
1.Housing : high temperature thermoplastic
2.Covered with metal that provides well anti-EMI performance
3.Contract : phosphor bronze , phosphor bronze with 6 to 50 µ Gold plate .
4.Available in CAT5e wiring .meeting every cabling requirement
5.Accept 22-26 AWG solid with a insulation diameter of 0.4-0.6 mm
6.Easy to be terminated Low attenuation loss and high return loss .
7.High reliability and superior performance
Item Specification
Product Name Keystone Jack RP-KJ180-5EU
Model RP-KJ180-5EU
Application
Ethernet cable connector
Performance Category
Cat CAT5e
Jack Type RJ45
Number of position 8
Wiring Patter T568A/568B
Solid wire
22-26 AWG
Termination Stype
Toolless
Dust Cover
With
Temperature
-40°C to 70°C
Material PC
Contact Phosphor bronze
Color White
Weight 7g
Certification CE & RoHS
Electrinic Voltage Rating :125 VAC RMS
Current Rating : 1.5AMP
Contact Resistance:110 Milliohs MAX.
Insulation Resistance:1 000 megohms MIN 500 VDC
Dielectric Strength :750 VAC RMS 60Hz ,1 MIN
Environment Storge: -40~ 85°c
Operation: 0~70°c
Machanical Housing Material:PC-UL90V-0
Contact: Phosphor Bronze with Nickel Plating
RJ45 Jack:IFE:750 times MIN
IDC Life :200 times MIN
Wire:AWG 24-26
Tia Cat.6 Perm Link Test: Worst Pair NEXT Margin ≥3dB