Technical Specifications Part Type: Dedicated Shielded Signal Cable Assembly Application: Inter‑connection between FBM modules and termination‑assembly boards Cable Structure: Multi‑pair shielded signal cable, factory‑assembled with matched connectors Operating Temperature: 0 °C to +60 °C Storage Temperature: −40 °C to +85 °C Relative Humidity: 5%‑95%, non‑condensing Certifications: Conforms to Foxboro original‑equipment cable‑assembly specification
Functional Features Factory‑finished cable assembly with matched connectors saves on‑site cable‑crimping work. Overall‑shielded cable structure restrains cabinet‑internal electromagnetic interference. Guarantees signal‑transmission integrity for analog and discrete control‑signal loops. Strictly matches Foxboro hardware pin‑definition to avoid wiring‑pin‑mismatch faults.
Application Scenarios Used inside Foxboro DCS control cabinets of petrochemical, chemical and power‑plant industries. Serves as dedicated connecting cable between FBM I/O modules and corresponding termination‑assembly boards.
Performance Parameters Cable impedance and shielding‑performance satisfy I/A series analog‑signal and discrete‑signal transmission requirements. Connector crimping quality meets long‑term cabinet‑vibration‑environment stability requirement.
Structural Characteristics Multi‑core twisted‑pair overall‑shielded signal‑cable body. Both cable ends are equipped with factory‑installed matched connectors according to Foxboro pin‑assignment standard. Outer‑surface marks part number MMS3210021‑000 for identification.
Working Principle MMS3210021‑000 cable assembly establishes physical signal‑transmission path between FBM module bottom connector and termination‑board connector. Analog or discrete signals from FBM module are transmitted to termination‑board through internal cable conductors, and further routed to field‑instrument wiring terminals. Overall shielding layer reduces external electromagnetic‑noise coupling into signal‑conductors.
Installation Requirements Confirm cable part‑number matches target‑hardware inter‑connection requirement before installation. Plug cable‑end connectors firmly into FBM‑module connector and termination‑board connector respectively. Arrange cable routing inside control cabinet, avoid parallel laying together with high‑power‑supply cables. Ensure shielding‑grounding terminal is connected according to official grounding‑specification.
Usage Notes Do not arbitrarily cut or modify factory‑assembled connectors of cable assembly. Avoid sharp‑object scratching cable outer‑shield layer during cabinet‑wiring construction. Keep cable‑connector plug‑in position tight to prevent poor‑contact faults caused by cabinet vibration.
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