Central-to-satellite link
Transfers system data between a central Cnet and a remote Cnet.
ABB Harmony Rack Communications · INIIR01
ABB INIIT12 Cnet-to-Cnet Remote Transfer Module
A remote transfer module used to link a central Cnet with a satellite Cnet through a serial communication path. INIIT12 works with INNIS01 and NTMP01, providing two configurable RS-232-C ports and nonvolatile storage for the transfer application.
TypeRemote transfer module
InterfaceCnet-to-Cnet
AssemblyINIIR01
BrandABB Bailey
Talk to a spare-parts specialistMiya Zheng
Email for
quotationsales@amikon.cnWhatsApp+86 180 2077 6792
04 / Product Introduction
A serial bridge between central and satellite control networks
The module belongs in an INIIR01 remote interface. Confirm the two Cnet ends, the serial transport equipment and the NTMP01 termination arrangement before ordering or commissioning a spare.
Transport flexibility
The serial link can pass through a modem, microwave system or compatible transceiver.
Two serial channels
Port 1 carries system data; port 2 can carry system data or provide a diagnostic connection.
Central siteCnet + INNIS01
→
Remote transferINIIT12 + NTMP01
→
Satellite siteRemote Cnet
05 / Technical Specifications
Memory, serial ports, power and installation data
| Model | INIIT12 |
|---|---|
| Product type | Cnet-to-Cnet remote transfer module |
| Interface assembly | INIIR01 |
| Read-only memory | 256 KB ROM |
| Random-access memory | 512 KB RAM |
| Nonvolatile memory | 256 KB NVRAM |
| Power requirement | +5 VDC at 2 A |
| Power consumption | 10 W |
| Serial interfaces | Two RS-232-C ports |
| Selectable serial rate | Up to 19.2 kbaud |
| Port 1 role | System data |
| Port 2 role | System data or diagnostics |
| Termination hardware | NTMP01 multi-function processor termination unit |
| Network-interface companion | INNIS01 |
| Configuration control | Function Code 202 executive block |
| Mounting | One module-mounting-unit slot |
| Operating temperature | 0 to 70°C (32 to 158°F) |
| Relative humidity | 5% to 90% up to 55°C; 5% to 40% above 55°C, noncondensing |
| Altitude | Sea level to 3 km (1.86 mi) |
| Air quality | Noncorrosive |
| Approvals | FM Class I, Division 2, Groups A–D; CSA ordinary locations |
02 / Remote Link Design
Match both Cnet endpoints and the serial transport
A successful remote interface depends on more than the processor card. Both INNIS01 interfaces, termination wiring and the transport equipment must agree on the installed link design.
Network endpoint
Each site uses its Cnet interface to present system traffic to the transfer link.
Serial transport
NTMP01 terminates the RS-232-C path to the modem, microwave or transceiver equipment.
Remote endpoint
The satellite transfer module restores the traffic path to the remote Cnet.
03 / Configuration & Diagnostics
Function Code 202 and the two serial ports define operation
ABB assigns the remote-transfer operating characteristics through Function Code 202. Preserve the configured block specifications before module replacement.
Commissioning focus
- Confirm the selected baud rate matches the transport equipment at both ends.
- Use Port 1 for system data and verify the configured purpose of Port 2.
- Check DTE/DCE and cabling at NTMP01 before attributing a no-link condition to the module.
04 / Compatibility & Replacement
A documented replacement for INIIT02
ABB's spare-parts material directs INIIT02 users to INIIT12. The change still requires validation of the complete INIIR01 link, termination hardware and configuration.
1Confirm the legacy partIdentify the installed INIIT02 or INIIT12 marking and capture the
cabinet location.
2Save Function Code 202 settingsKeep the executive block values used for addresses, ports and link
behavior.
3Record transport settingsNote baud rate, modem or transceiver type and DTE/DCE cable
arrangement.
4Check both endsA remote-link fault may originate at either Cnet endpoint or in the
transport circuit.
06 / Applications & Fault Scenarios
Remote-link symptoms that lead teams to INIIT12
Satellite Cnet unavailable
The remote network stops exchanging system data with the central site.
Link repeatedly resets
Serial transport, termination, configuration or module health causes an unstable inter-site connection.
INIIT02 spare replacement
A site is implementing ABB's documented move to INIIT12 during scheduled maintenance.
07 / Official Documentation
INIIT12 manufacturer documents
| Manufacturer | Document | Number / Version | Official link |
|---|---|---|---|
| ABB | Harmony Rack Communications — Data Sheet | WBPEEUD250001C1, Rev. C1 | View document |
| ABB | Harmony Rack Communications — Overview | WBPEEUS250002C1, Rev. C1 | View document |
| ABB | Symphony Plus Product Catalog | 2VAA005340, Rev. G | View document |
| ABB | Spring Savings Event — Bailey / Harmony Spares | 2020 spare-parts brochure | View document |
08 / Supply & RFQ
Inspection, packing and quotation support
Amikon Service
InspectionPart identity and agreed test scope
Export packingAnti-static and impact-protective
DOA supportPrompt review with photos and evidence
Warranty & returnsTerms confirmed on the quotation
09 / FAQ
INIIT12 questions from buyers and maintenance teams
What is ABB INIIT12 used for?
It links a central Cnet and a satellite Cnet through a serial remote-transfer path as part of an INIIR01 interface.
Which hardware works with ABB INIIT12?
The documented interface uses INNIS01 for the Cnet connection and NTMP01 for serial termination.
How many serial ports does ABB INIIT12 provide?
It provides two RS-232-C ports. Port 1 carries system data; Port 2 can carry system data or serve as a diagnostic port.
How is ABB INIIT12 configured?
Its operating characteristics are controlled through the Function Code 202 executive block. Preserve the installed specifications before replacement.
Does ABB INIIT12 replace ABB INIIT02?
Yes. ABB spare-parts material identifies INIIT12 as the replacement path for INIIT02.
What should be checked when ABB INIIT12 shows no remote link?
Check both Cnet endpoints, INNIS01 status, NTMP01 wiring, DTE/DCE arrangement, baud rate, transport equipment and Function Code 202 settings.
10 / Multi-brand Spare Parts Also Requested
Independent procurement references
These models are separate sourcing references, not substitutes for INIIT12. Compatibility and stock must be confirmed independently.
210N2272972-01268-6A-IP20311637312863-A01319828-A01332985-C013G3MX2-A4007-ZV13IF722.93IF761.93IF766.93IF771.93IF772.93IF779.9
No interchangeability, migration or replacement relationship is implied by this list.
