Overview
The Bailey NTAM01 Analog Master Termination Unit (part number 6637054A1) is a passive field interface assembly designed for the Bailey INFI 90 Distributed Control System. This termination module serves as a central hub for organizing, terminating, and distributing analog process signals between field instrumentation and INFI 90 analog master modules. The unit supports stable analog signal management with built-in calibration routing and cold-junction compensation transfer.
Key Features
- Passive termination assembly—no power supply required; fully transparent signal routing
- Supports standard industrial analog signals including 0–10 V and 4–20 mA
- Provides calibration voltage routing from IMAMM03 Analog Master Modules
- Cold-junction compensation transfer for thermocouple circuit applications
- Simplifies cabinet integration with rack-mounted construction
- Factory-wired cables for direct connection to NTAI02 and NDIS01 stations
Technical Specifications
- Part Number: NTAM01 / 6637054A1
- Manufacturer: ABB Bailey
- Module Type: Passive Field Termination Assembly
- System Compatibility: Bailey INFI 90, INFI 90 Net 90
- Signal Types: Analog (0–10 V, 4–20 mA)
- Mounting: NFTP01 Field Termination Panel (standard)
- Maximum Connectivity: Up to 4× NTAI02 analog input units; up to 4× NDIS01 digital indicator stations
- Redundant Module Support: Enables communication between redundant IMAMM03 modules
- Wiring: Pre-wired factory cables for standardized field connections
Typical Applications
- Analog signal termination and distribution in Bailey INFI 90 process control systems
- Thermocouple signal conditioning with cold-junction compensation
- Plant instrumentation to analog master module interface
- Redundant analog master configurations requiring calibration signal distribution
- Industrial process monitoring in continuous manufacturing environments
- SCADA and DCS cabinet integration for multi-channel analog I/O
Compatibility & Replacements
Compatible With
- Bailey INFI 90 Distributed Control System
- Bailey Net 90 Control System
- IMAMM03 Analog Master Module (redundant configurations)
- NTAI02 Analog Input Termination Module (up to 4 units)
- NDIS01 Digital Indicator Station (up to 4 units)
- NFTP01 Field Termination Panel
- Standard 0–10 V and 4–20 mA analog signal loops
Replaces / Drop-In Replacement For
- Original equipment Bailey NTAM01 termination modules in INFI 90 systems requiring service or expansion
Works With
- Bailey INFI 90 and Net 90 configuration software
- Standard 4–20 mA and 0–10 V analog signal standards
- Thermocouple cold-junction compensation protocols
- Industrial cabinet wiring and termination practices
- NFTP01 panel mounting infrastructure
