The ABB Bailey NTCL01 Communication Link Terminal Unit is a field termination and interface module used in the ABB Bailey INFI 90 / Net 90 Distributed Control System (DCS). It provides the physical connection point for communication networks such as INFI-NET or plant loop communication, allowing reliable data exchange between network interface modules and the system backbone.
In practice, the NTCL01 acts as the “wiring and termination interface” for communication links, ensuring proper signal matching, noise reduction, and stable network operation in industrial environments.
It is commonly used in power plants, oil & gas facilities, petrochemical industries, and other process automation systems that rely on ABB Bailey legacy DCS infrastructure.
Technical Specifications
| Parameter | Details |
|---|---|
| Product Type | Communication Link Terminal Unit |
| System Compatibility | ABB Bailey INFI 90 / Net 90 |
| Main Function | Communication line termination & interface |
| Network Type | INFI-NET / Plant Loop |
| Connected Modules | INNIS01, INLIM03 (typical) |
| Signal Media | Twinaxial / coaxial cable |
| Power Supply | 24 VDC |
| Current Consumption | ~15.8–19.7 mA |
| Mounting Method | Screw-mounted to termination panel |
| Operating Temperature | 0°C to 70°C |
| Humidity Range | 5%–90% (non-condensing) |
| Operating Duty | Continuous 24/7 operation |
The NTCL01 ensures correct termination impedance and stable communication behavior between network nodes in ABB Bailey systems.
Physical Dimensions & Weight
| Specification | Value |
|---|---|
| Dimensions (H × W × D) | 203 mm × 51 mm × 178 mm |
| Weight | ~0.3–1.0 kg |
This compact form allows installation on standard ABB Bailey field termination panels inside control cabinets.
Recommended Related Models
- ABB Bailey INNIS01 Network Interface Slave Module
- ABB Bailey INLIM03 Loop Interface Module
- ABB Bailey NTCF21 Fiber Optic Termination Unit
- ABB Bailey NSBM01 Superloop Bus Module
- ABB Bailey NSSM01 Superloop Storage Module
These modules are typically used together to form complete ABB Bailey communication networks.
Popular ABB Bailey Models
- NTCL01 Communication Link Terminal Unit
- NTCF21 Fiber Optic Termination Unit
- NSBM01 Superloop Bus Module
- NSSM01 Superloop Storage Module
- NPIM01 Processor Interface Module
These ABB Bailey components are still widely used in long-life industrial automation systems where legacy DCS networks remain in operation.
