Keystone - Inserts

Image	Part Number	Description / PDF	Quantity	Rfq
	CJA6X88TGBU Panduit Corporation	CAT 6A, UTP, 8 POS 8 WIRE, UNIV,	0
	CMDJLCBL Panduit Corporation	DUPL LC SR./JR. FIBER ADAPTER (E	0
	CJSK5E88TGBU Panduit Corporation	MINI-COM KEYED MODULE, CAT 5E, S	0
	NKMJMWH Panduit Corporation	NK FIBER OPTIC ADAPTER MODULE	0
	NKBPBIWY Panduit Corporation	MODULE	0
	NKHBRDLCZBL Panduit Corporation	NETKEY KEYED DUPLEX LC ADAPTER M	0
	CMDEISCBU Panduit Corporation	SC DUPL (EI) ADAPTER (BU) MODULE	0
	NKRPMRIG Panduit Corporation	NK RCA MODULE	0
	CMSBUSCEW Panduit Corporation	SC SIMPL (BU) ADAPTER (EW) MODUL	0
	CHR3RGBEI Panduit Corporation	RCA COUPLER	0
	CMMJIW Panduit Corporation	DUPL MT-RJ FIBER ADAPTER MODULE	0
	CJD5E88TGRD Panduit Corporation	MINI-COM SHUTTERED MODULE, CAT 5	0
	CJRRIG Panduit Corporation	MINI-COM RCA PUNCHDOWN MODULE, I	0
	CJRRWH Panduit Corporation	MINI-COM RCA PUNCHDOWN MODULE, W	0
	CHSRE2AW-X Panduit Corporation	INSERT 2MOD 1/2 SIZE ARCTIC WHT	0
	CJ5E88TGBL-C Panduit Corporation	MINI-COM MODULE, CAT 5E, UTP, 8	0
	CHSRE2WH-X Panduit Corporation	INSERT 2PORT 1/2 SIZE WHITE	0
	NKRPMWAW Panduit Corporation	MODULE NETKEY AV WHITE	0
	CJA688TGOR Panduit Corporation	CAT 6, UTP, 8-POS, 8-WIRE, UNIV,	0
	CJ64IGY Panduit Corporation	MINI-COM MODULE, CAT 3, UTP, 6 P	0

Keystone - Inserts

1. Overview

Keystone inserts are modular interface components designed to facilitate secure and reliable signal or power transmission in structured cabling systems. As standardized interconnect solutions, they serve as fundamental building blocks in telecommunications, networking, and audio/video infrastructure. Their interchangeable design enables rapid deployment and scalability in environments requiring high-density connectivity solutions.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
RJ45 Ethernet	8P8C configuration, supports 10/100/1000BASE-T networks	Network switches, PoE devices
RJ11/12	6P4C/6P6C configurations, voice/data transmission	Telephony systems, fax machines
Fiber Optic	LC/SC/MPO interfaces, single/multi-mode support	Data centers, backbone networks
Coaxial	75 /50 impedance, RF signal transmission	CCTV systems, satellite receivers
Composite	Multi-protocol integration (HDMI/USB/Power over Ethernet)	AV distribution systems

3. Structural Composition

Standard keystone inserts feature a three-part architecture: - Dielectric housing: High-temperature thermoplastic (LCP/PBT) with integrated strain relief - Contact array: Phosphor bronze conductors with 50 " gold plating (25 " minimum standard) - Latching mechanism: Molded polymer actuator with >20N retention force Optional EMI shielding employs 0.1mm thick phosphor bronze cans with 360 coverage.

4. Key Technical Specifications

Parameter	Value Range	Importance
Insertion Loss	0.5dB @100MHz	Signal integrity maintenance
Contact Resistance	10-30m (initial)	Power transmission efficiency
Withstand Voltage	1000VAC rms	Electrical safety compliance
Mating Cycles	750-1500 cycles	Service life prediction
Operating Temperature	-40 C to +85 C	Environmental adaptability

5. Application Fields

Telecommunications: Central office switching systems, DSLAM cabinets
Data Centers: 1U patch panels, high-density fiber distribution
Security Systems: IP camera connectivity, access control panels
Industrial Automation: PROFINET/Industrial Ethernet nodes
Residential: Smart home gateway integration

6. Leading Manufacturers and Products

Manufacturer	Product Line	Key Features
TE Connectivity	DEUTSCH DT Series	IP68-rated, automotive-grade durability
Amphenol	OptiCore OCX	100Gbps fiber optic transmission
Molex	Gigabit Ethernet	Shielded Cat6A compliance
Bel Stewart	Power over Ethernet	100W (IEEE 802.3bt) support
Panduit	NetKey HDX	28% smaller footprint than standard

7. Selection Guidelines

Key selection criteria include: - Signal type and bandwidth requirements (e.g., 25Gbps vs 100Gbps optics) - Environmental factors (temperature, vibration, EMI exposure) - Termination method compatibility (IDC/P CB/Welding) - Regulatory compliance (UL 94V-0, RoHS, REACH) - Cost/performance balance (gold thickness vs cycle life) Actual case: Selecting shielded fiber optic keystone inserts with MPO interfaces for 40Gbps backbone deployment in a Tier III data center.

8. Industry Trends

Current development trends include: - Miniaturization (SFP-DD/OSFP form factors) - Integrated PoE management (smart power negotiation) - Enhanced thermal performance (graphene-enhanced polymers) - Optical engine integration (on-board transceivers) - Sustainability focus (bio-based plastics, 100% recyclable metals)