What is the difference between RJ45 and field termination plugs?- Ningbo Excellence Communicated Connector Co., Ltd(EXW)

Here's a clear breakdown of the differences between standard RJ45 plugs and field termination plugs:

Comparison Aspect	Standard RJ45 Plugs	Field Termination Plugs
Core Design Purpose	Factory or field-crimped for patch cords.	Field-installed permanent endpoint links.
Installation Method	Crimp contacts pierce wires (requires crimping tools).	IDC punch-down terminals (like keystone jacks, needs punch-down tools).
Internal Structure	Metal contacts only; no signal conditioning.	Often integrate signal-compensating PCBs inside housing.
Reusability	Single-use; damaged wires require full replacement.	Many models allow re-punching wires if termination fails.
Shielding Support	Shielded versions exist but require meticulous foil handling.	Optimized for shielded cables with integrated 360° metal shrouds.
Performance Target	Patch cord standards (TIA short-channel).	Meet permanent link standards (e.g., TIA MPTL for direct device connects).
Key Applications	• Work area jumpers • Equipment patch cords.	• PoE cameras/APs (direct cable-to-device) • Industrial machinery.• Outdoor permanent endpoints.
Durability Focus	Rated for frequent plugging/unplugging.	Built for vibration/moisture resistance (industrial variants: IP67).
Space Requirements	Compact; fits any Ethernet port.	Bulkier due to PCB/strain relief; may obstruct adjacent ports.
Cost & Skill	Low-cost; basic technician skill required.	Higher cost per unit; requires trained termination technique.

Signal Integrity:
- RJ45: Prone to crosstalk in long/fast links; relies on cable quality.
- Field Plug: PCB actively corrects interference for 10Gbps stability.
Failure Points:
- RJ45: Exposed untwisted wires at crimp point cause impedance spikes.
- Field Plug: Maintains wire twist up to terminals; minimizes untwisting.
Industrial Use:
- RJ45: Avoid in sustained-vibration environments (contacts loosen over time).
- Field Plug: Locking collars/strain clamps prevent cable pullout.
Topology Role:
- RJ45: Used between devices (transient link).
- Field Plug: Acts as final endpoint (permanent link).