The manufacturer instruction documents IMMFP01, IMMFP02 and IMMFP03; the IMMFP03 arrangement uses IMMPI01 or IMMPI02 as specified.
01
Overview
Product Introduction
NTMP01 provides external serial and control-station termination for ABB Bailey rack-mounted controllers. Manufacturer documentation covers IMMFP01/02/03 applications, with IMMPI01/02 used where specified, and identifies additional interface applications for INIIT02 and INICT03.
The assembly supports two isolated RS-232-C channels, with one channel configurable as a non-isolated RS-485 connection, plus a control-station serial link. Port mode, handshaking and station wiring must be set for the connected device.
02
Verified manufacturer data
Technical Specifications
| Serial interfaces | Two isolated RS-232-C, or one isolated RS-232-C plus one non-isolated RS-485 |
|---|---|
| Station interface | One control-station serial link |
| RS-232 configuration | DCE, DTE, non-handshake and loopback options as documented |
| Board format | 7 × 7 in. printed circuit board |
| Mounting | NFTP01 Field Termination Panel |
| Connectors | DB-25 and DB-9 serial connectors, module cable socket, station terminals |
| Module cable | NKTU01 PVC or NKTU11 non-PVC |
| Station extension | NTCS04 Control Station Termination Unit where the documented arrangement requires it |
| Status indication | Two LEDs identify active primary and redundant controller paths |
| Operating temperature | 0 to 70 °C (32 to 158 °F) |
| Relative humidity | 5–90% ±5% to 70 °C, noncondensing |
| Altitude | Sea level to 3 km (1.86 mi) |
| Cooling | No cooling necessary; maintain normal air circulation |
| Atmosphere | Noncorrosive |
| Legacy certification stated | CSA certified for ordinary (nonhazardous) locations |
03
System fit
Compatibility & Connected Hardware
The same instruction also covers NTMP01 termination for INIIT02 and INICT03 through the appropriate IMMPI interface.
ABB General Purpose Interface literature lists NTMP01 + NTKU01 among peripheral hardware for documented MFP03, BRC100/200/300/400/410 and related interface arrangements. Use the exact architecture drawing for the installed controller generation.
No direct replacement is asserted. Cable, port electrical standard, DCE/DTE mode and station topology must match.
04
Maintenance context
Applications & Fault Scenarios
Serial device offline
A printer, computer or event recorder no longer communicates and the port mode, cable or isolated interface path must be checked.
DCE/DTE mismatch
A new peripheral is connected but transmit and receive activity is absent because both ends use an incompatible port role.
RS-485 migration
One channel is being changed from RS-232 to the documented non-isolated RS-485 mode and needs a complete wiring and grounding review.
Redundant controller service
Primary and backup path indication does not follow controller status, prompting checks of cable seating and the paired processor arrangement.
05
Field practice
Serial Port Setup & Station Integration
Define each port before wiring
Record the peripheral, protocol, RS-232 or RS-485 electrical standard, DCE/DTE role and handshake requirement. Configure jumpers from the correct manufacturer table.
Respect isolation boundaries
The two RS-232 channels are isolated; the documented RS-485 option is non-isolated. Review grounding and common-mode conditions before conversion.
Check the controller path
Inspect the NKTU cable, IMMPI interface where used and primary/redundant connections. Use the two LEDs as path indicators, not as a substitute for end-to-end communication testing.
Commission at the application layer
After physical checks, verify port settings in the controller and peripheral, then prove message transfer or print/event output under normal operating conditions.
06
Source record
Official Documentation
| Manufacturer | Document | Document no. / version | Link |
|---|---|---|---|
| Elsag Bailey | Multi-Function Processor Termination Unit (NTMP01) Instruction (manufacturer-issued; archived copy) | I-E96-428A | Open document |
| ABB | ABB Ability™ Symphony® Plus Product Catalog | 2VAA005340 en G | Open document |
| ABB | General Purpose Interface Data Sheet, Version 4.0 | 3BCA013068R1701 Rev A | Open document |
07
Order support
Amikon Service
Test scope and unit condition are confirmed before dispatch, with ESD-safe export packing. DOA, returns, warranty and after-sales support follow the quotation.
08
Product-specific answers
FAQ
Which serial interfaces are available on NTMP01?
It supports two isolated RS-232-C channels, with one channel configurable instead as a non-isolated RS-485 interface, plus a control-station serial link.
Can NTMP01 be configured as DCE or DTE?
Yes. The manufacturer instruction documents DCE, DTE, non-handshake and loopback arrangements. Use the jumper table for the required port and hardware revision.
Which controller modules are documented with NTMP01?
The instruction covers IMMFP01/02/03, including the specified IMMPI interface arrangements, and also documents INIIT02 and INICT03 applications.
What do the two NTMP01 LEDs indicate?
They identify active primary and redundant controller paths in the documented arrangement. End-to-end serial communication still needs a functional test.
Is the NTMP01 RS-485 interface isolated?
No. ABB documentation distinguishes the isolated RS-232 channels from the non-isolated RS-485 option, so grounding must be reviewed.
What information helps quote NTMP01 correctly?
Provide the controller and interface module, cable part number, required serial standard, board revision, quantity, destination and required date.
Request a quotation
NTMP01 RFQ
For an accurate offer and revision check, send the following five details. Add nameplate photographs and connected-module information when available.
Email the RFQ- Part Number
- Quantity
- Destination
- Required Date
- Machine/System Model