Technical Specifications Multi‑channel InfiNet coaxial signal port. Auxiliary power supply 24 V DC, typical power consumption 3.9 W. Operating temperature ‑20 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Signal‑to‑back‑plane isolation voltage 1000 V AC. Module surface IP20. Complies with ABB DCS network module specification.
Functional Features Provides physical interface expansion for InfiNet coaxial loop. Executes signal shaping and surge suppression for bus signal. Realizes fault isolation between different loop branches. Front‑panel LED indicators reflect port working and fault status. Supports back‑plane bus communication with related network modules. Built‑in port hardware self‑diagnosis function.
Application Scenarios Used for InfiNet ring‑network and branch‑network construction of power plant, chemical industry DCS system. Cooperates with SPNIS21 series modules for network node expansion. Applied for project construction and spare‑part replacement.
Performance Parameters InfiNet bus signal processing keeps 2 Mbit/s transmission rate. Fault isolation can limit loop fault within single branch. LED gives accurate port‑state feedback. Diagnosis function captures port circuit abnormality rapidly.
Material Composition Glass‑fiber epoxy printed circuit board. Signal shaping chip, surge suppression and isolation components. Reinforced plastic module housing. Coaxial signal connectors. Copper‑alloy back‑plane plug‑in contact pieces.
Structural Characteristics Standard rack‑mount plug‑in module structure. Front panel arranges port LED status indicators and coaxial connectors. Rear side connects rack back‑plane bus.
Working Principle After power‑on, module completes hardware self‑check. InfiNet bus signal enters each port, passes signal conditioning and surge suppression circuit. Valid signal is transmitted to back‑plane bus or other branch ports.
Installation Requirements Insert module into designated rack slot and tighten locking screw. Connect 24 V DC auxiliary power supply. Complete InfiNet coaxial cable wiring strictly follow network design specification. Ensure cabinet protective grounding. Check LED port status after power‑on and verify loop communication quality.
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