Product Short Description
Product Brief Introduction
Matching dedicated wiring terminal base accessory for KJ3241X1-BK1 serial interface module, specially designed for redundant serial channel wiring termination. It integrates spring-cage wiring terminals, signal shielding bars and keyed positioning structure, realizing fast, safe field serial cable termination without soldering, fully compliant with DeltaV S-series I/O system mechanical and electrical standards.
Description
Core Technical Performance Parameters
- Rated Working Voltage: 32VDC maximum limited energy circuit
- Continuous Current Rating Per Terminal Channel: 500mA
- Wiring Cable Specification: 0.5mm² ~ 1.5mm² solid or stranded copper wire
- Terminal Torque Requirement: 0.5 N·m tightening torque
- Insulation Withstand Voltage: 2000VAC between signal terminals and ground shield
- Operating Temperature: -40°C ~ +70°C
- Weight: 0.1kg per unit
- Alternate Part Number: 12P2565X032
- Compatibility: Exclusively matches KJ3241X1-BK1 serial interface card, incompatible with H1 fieldbus module terminal bases
Functional Features
- Integrated full-length EMI metal shielding bar bonded to cabinet ground to suppress industrial frequency electromagnetic interference
- Independent terminal group separation for Channel A and Channel B serial circuits, cross-channel crosstalk suppression design
- Color-coded terminal marking for RS232, RS422, RS485 signal positive/negative lines and ground shield connection
- Spring-cage quick wiring structure, no screwdriver locking required for fast field wiring modification
- D4 mechanical key lock prevents mismatched assembly with other DeltaV module terminal bases
- Integrated cable strain relief buckle to avoid wire pull-out damage during cabinet vibration
- Terminal label printing with serial pin definition for on-site maintenance reference
Working Principle
The terminal block mechanically locks onto the front connector of KJ3241X1-BK1 module, establishing gold-plated metal contact between module internal serial transceivers and external field wiring. Internal copper bus bars separate each serial channel circuit, while the external aluminum shielding frame connects all cable shielding layers to cabinet protective earth, forming a Faraday shielding layer to filter high-frequency EMI noise induced on field cables. Spring-cage clamps maintain constant wire compression force to prevent loose wiring contact under long-term vibration.
Material Composition & Structural Characteristics
- Terminal Housing: Black flame-retardant PA66 plastic, UL94 V-0 fire safety standard
- Conductive Bus Bars: Tinned oxygen-free copper with nickel anti-oxidation coating
- Shield Frame: Anodized lightweight aluminum alloy strip
- Spring Clamps: Stainless steel spring components with fatigue resistance over 10,000 wiring cycles
- Positioning Key: Molded plastic D4 anti-mismatch lock structure
Installation Requirements
- Align D4 key slot with module front connector before pushing terminal block fully into locked position
- All cable shielding braids must connect to designated ground terminal on the shielding bar
- Stranded wires must use ferrule crimp terminals before inserting into spring cages to prevent wire strand scattering
- Keep wiring order consistent with printed terminal labels to avoid channel short-circuit
- Install inside IP20 industrial control cabinet only, cannot be mounted in outdoor exposed environment
Application Scenarios
All matching installation occasions for KJ3241X1-BK1 serial communication modules, including petrochemical, power generation, water treatment and fine chemical DeltaV DCS control cabinet serial signal wiring termination.
Operation & Maintenance Precautions
- Do not pull terminal block from module during live power operation; power off module backplane power first
- Do not connect AC voltage signals to serial signal terminals, will permanently damage serial transceiver chips
- Clean dust accumulation on terminal block contact surfaces with dry compressed air every six months
- Do not modify or cut integrated shielding aluminum bar; breaking ground shielding path will cause severe communication interference
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