Description
Product Introduction
The ABB Bailey NTMP01 is a specialized termination unit engineered to interface INFI 90 and Network 90 Multi-Function Processor modules (such as the IMMFP01, IMMFP02, and IMMFP03) with external field wiring and serial communication networks. Serving as the physical interface layer mounted in the rear of the cabinet, it routes control signals, serial station links, and I/O expansion buses straight to the processor card slot.
By bringing all field connection headers, fuse protection, and serial ports onto a single dedicated board, the NTMP01 eliminates loose point-to-point wiring behind the cabinet. It allows primary processors to be extracted or swapped without disturbing field wiring looms or external communication lines, protecting plant wiring investments during module maintenance.
Key Technical Specifications
| Parameter | Specification |
| Module Compatibility | IMMFP01, IMMFP02, IMMFP03 Multi-Function Processors |
| Serial Connectors | Dual DB25 connectors (RS-232-C / RS-485 serial communication ports) |
| Redundancy Support | Interfaces primary and secondary redundant MFP controller pairs |
| Fuse Protection | Onboard power protection fuse (typically 1A fast-acting) |
| Field Cable Connections | Multi-pin ribbon and field wiring cable connectors (NKN/NKLS series) |
| Mounting Style | Standard INFI 90 Field Termination Unit (TU) Mounting Frame |
| Ambient Operating Temp | 0°C to 55°C (32°F to 131°F) |
| Relative Humidity | 5% to 95% non-condensing |
Application Scenarios & The “Trench” Experience
It is 2:00 AM on a freezing night. A paper mill’s main digester controller drops its serial handshake to the local operator station. The instrument tech finds blown line protection components on an old termination unit caused by an external ground loop spike. Rather than trying to solder micro-components on-site, the tech disconnects the keyed cable plugs, swaps in a pre-tested NTMP01 termination board, replaces the blown line fuse, and brought the IMMFP03 processor back online before pulp consistency shifted out of spec.
- Power Generation Facilities – Steam Turbine Controller Interfacing – Connects main controller modules to local panel meters and serial operator interface stations.
- Chemical Processing Plants – Redundant Controller Bus Termination – Routes continuous process data between primary and backup processor modules.
- Pulp & Paper Mills – Boiler Flame Safety Interlocking – Handles physical field cable landings for critical safety shutoff valve triggers.
- Oil Refineries – Remote SCADA Gateway Interfacing – Links serial Modbus/Bailey station lines from field PLCs directly into the INFI 90 processing rack.
Transparency SOP: Quality Assurance & Testing
We don’t just ship boxes; we test them on actual ABB Bailey MMU and TU test stands.
- Inbound Inspection: Microscopic evaluation of edge connectors, terminal block pins, trace isolation, onboard fuse holders, and DB25 housing threads.
- Live Cable & Signal Continuity Testing: Cable harness continuity checks across all multi-pin header positions to ensure zero open pins or high-resistance solder joints.
- Serial Loop Handshake Test: DB25 ports wired into a live IMMFP03 controller test stand; TX/RX data transmission verified using full serial communication polling.
- Fuse & Power Rail Inspection: Onboard fuses and power trace continuity bench-tested under rated DC current load.
- ESD Protection & Packaging: Cleaned, wrapped in static-shielding bags, and packaged using dense shock-absorbing foam.
- NTMP01
- NTMP01
The Veteran’s Tech Trap Guide (Crucial Value-Add)
- ⚠️ Check Onboard Jumpers Before Powering Up!
The NTMP01 board contains configurable jumper blocks for setting serial port standards (RS-232 vs. RS-485) and station communication modes. If you drop a replacement into a cabinet without matching the jumpers to the old board, your serial links will stay dark. Take a clear photo of the original board jumpers before pulling it.
- ❗ Verify Fuse Rating Before Inserting Replacement
Always check the onboard glass fuse (F1) rating. If a previous field short blew the fuse on your old board, fix the underlying wiring fault before plugging cables into the new , or you will instantly blow the replacement fuse.
- ⚠️ Label Keyed Cables During Extraction
Though the ribbon cables and multi-pin connectors are keyed, plugging an expander cable into the wrong header will cause communication timeouts or missing I/O channels. Mark every cable connector tag clearly before unplugging.
- ❗ Mind the Grounding Straps
Ensure the mounting screws securing the to the termination frame are tight. The board relies on these metal standoffs for chassis grounding to shield serial lines against field RF noise.
Frequently Asked Questions (FAQ for Conversion)
Q: Is the termination unit hot-swappable?
A: You can disconnect field signal cables from the board while power is on, but doing so will instantly disrupt serial links and I/O connections to the connected IMMFP processor. Always place active process loops in manual state before servicing termination hardware.
Q: Does the come with the connecting cables included?
A: No. The is sold as the bare termination unit board. Cable sets (such as NKN or NKLS series cables) are typically retained in your cabinet or ordered separately based on required length.
Q: What is the main difference between and NTMP02?
A: Both serve as processor termination units, but the NTMP02 features revised component layouts, updated jumper configurations, and modified cable landing options designed for specific redundant processor setups or later-generation Symphony hardware.
Q: Are these units brand new from ABB?
A: ABB has discontinued the legacy Net 90 / INFI 90 series hardware. Our stock consists of high-grade New Surplus (unused plant spares) and fully refurbished units pulled from working plant upgrades and 100% bench-tested.
Q: What warranty comes with this termination unit?
A: Every board includes a full 12-month replacement warranty. If any channel or serial port fails within one year of installation, we ship an immediate replacement directly from our inventory.
Start Chat
