The manufacturer instruction documents NTCL01 with INNIS01 and INLIM03 on INFI-NET and Plant Loop installations.
01
Overview
Product Introduction
NTCL01 terminates an ABB Bailey communication network connection at the network interface. The legacy instruction covers INNIS01 and INLIM03 applications on INFI-NET or Plant Loop, while the current Symphony Plus catalog identifies NTCL01 for Cnet termination to SPNIS.
Cable medium and termination impedance are configured by jumpers. Because the jumper map changes with board revision, the silkscreen revision and applicable instruction table must be checked before the unit is placed on a live communication segment.
02
Verified manufacturer data
Technical Specifications
| Network media | Twinaxial or coaxial cable |
|---|---|
| Legacy interfaces documented | INNIS01 Network Interface Slave; INLIM03 Loop Interface Module |
| Current catalog context | Cnet termination to SPNIS |
| Mounting | One position on NFTP01 Field Termination Panel |
| Operating power | +24 VDC |
| Current consumption | 15.8 mA typical; 19.7 mA maximum |
| On-board fuse | 1 A / 250 V |
| Configuration method | Revision-dependent jumpers for cable type and termination impedance |
| Operating temperature | 0 to 70 °C (32 to 158 °F) |
| Relative humidity | 5–90% ±5% to 55 °C; 5–40% ±5% at 70 °C, noncondensing |
| Altitude | Sea level to 3 km (1.86 mi) |
| Atmosphere | Noncorrosive |
| Legacy certification stated | CSA certified for ordinary (nonhazardous) locations |
03
System fit
Compatibility & Network Generations
The current ABB catalog identifies the same part number as the Cnet communication termination unit for SPNIS and states support for twinax or coax.
These are documented system generations, not a claim that one interface module is a direct replacement for another. Confirm the installed network, interface module, cable kit and board revision.
04
Maintenance context
Applications & Fault Scenarios
Intermittent node communication
A network node repeatedly enters and leaves the loop, prompting checks of connectors, cable shields and the local termination setting.
Media mismatch
A spare arrives configured for coax while the cabinet segment uses twinax, or the cable adapter set differs from the site drawing.
Revision-dependent setup
The installed board and replacement carry different silkscreen revisions, so copied jumper positions may be unsafe.
Network extension work
A planned Cnet, INFI-NET or Plant Loop change requires the correct ABB cable assembly and end-of-segment termination.
05
Field practice
Network Cabling & Jumper Control
Identify the board revision
Use the revision marking to select the manufacturer jumper table. The instruction distinguishes earlier A–C artwork from later D/E and F-or-later boards.
Match the cable system
Legacy documented assemblies include NKPL01/02 twinax, NKCL01/02 coax, NKTT01 termination-to-termination and specified NKLS interface cables. Confirm the installed drawing rather than substituting by connector appearance.
Maintain shield continuity
Inspect cable screens, connector bodies and cabinet bonding. Poor shield or connector condition can resemble an interface-module failure.
Control the outage
Changing termination on an operating network can affect more than one node. Isolate the work, record jumper positions and confirm stable communications after restoration.
06
Source record
Official Documentation
| Manufacturer | Document | Document no. / version | Link |
|---|---|---|---|
| Elsag Bailey | Communication Termination Unit (NTCL01) Instruction (manufacturer-issued; archived copy) | I-E96-422A | Open document |
| ABB | ABB Ability™ Symphony® Plus Product Catalog | 2VAA005340 en G | 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
Does NTCL01 support both twinax and coax network cable?
Yes. Both media are documented, but the cable assemblies and jumper configuration must match the installed network and board revision.
Which interface modules are documented with NTCL01?
The legacy instruction covers INNIS01 and INLIM03. The current ABB catalog lists Cnet termination to SPNIS.
Why must the NTCL01 board revision be checked before setting jumpers?
The manufacturer uses different jumper maps for different board artwork revisions. Copying physical positions from another revision can produce the wrong cable or impedance selection.
Can NTCL01 be replaced while the communication loop remains in service?
Plan the work as a network intervention. Removing cabling or changing termination can disturb multiple nodes, so follow the site outage and ABB service procedure.
What should be inspected during an NTCL01 communication fault?
Check the +24 V supply and fuse, connectors, cable shield and continuity, media selection, termination setting and the adjacent interface module diagnostics.
What should an NTCL01 purchase request identify?
Include the full part number and board revision, cable medium, interface module, quantity, destination, required date and installed system model.
Request a quotation
NTCL01 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
