ABB JINT Series Modules

Technical Dossier

Product Details And Specifications

ABB JINT Series: Comprehensive Module Range and Technical Overview

The ABB JINT series represents a family of interface and I/O modules deployed within ABB's AC500 and Advant/Master distributed control system (DCS) architectures. These modules are installed across global heavy industry sectors including petrochemical refineries, nuclear power stations, offshore platforms, pulp and paper mills, and large-scale chemical processing facilities. The JINT designation covers a range of circuit interface boards — primarily coated variants designed for harsh industrial environments — that serve as the communication and signal conditioning layer between field instrumentation and the central processing units. Due to their long service life in safety-critical installations, JINT modules remain in active demand for maintenance, retrofit, and lifecycle extension programs well beyond their original production window.

The Evolution of JINT Architecture

The JINT module family originated within ABB's Advant Controller (AC) platform, which entered industrial service in the late 1980s and became a backbone controller for process automation through the 1990s and into the 2000s. Early JINT variants were designed for the Advant OCS (Open Control System) and Master series backplanes, using parallel bus communication with proprietary ABB RCOM and SATT protocols. As ABB transitioned toward the AC500 platform and later the System 800xA architecture, the JINT interface layer was adapted to support PROFIBUS-DP, MODBUS RTU, and IEC 61850 communication standards, while maintaining backward compatibility with legacy Advant backplane pinouts. Coated board variants (denoted by the suffix -C or integrated coating as in JINT-E02C) were introduced to address corrosion resistance requirements in offshore and chemical environments per IEC 60068-2-60 mixed flowing gas test standards. The series is now considered mature-to-end-of-life by ABB, with no new production runs confirmed. Long-term maintenance support is exclusively available through authorized spare parts distributors and certified repair centers.

JINT Full Catalog & Functionalities (SKU List)

The following SKUs represent the documented JINT series module range. Each unit is classified by primary function within the DCS architecture:

Main Circuit Interface Modules

• JINT-E02C: Main circuit interface board, conformal coated, Advant OCS backplane compatible
• JINT-E01: Main circuit interface board, standard (non-coated), Advant Master series
• JINT-E03C: Enhanced main circuit interface, coated, extended temperature range (-20°C to +70°C)
• JINT-E04: Main circuit interface with integrated surge protection, DIN rail mount

Digital Input (DI) Modules

• JINT-D01: 16-channel 24VDC digital input module, Advant backplane
• JINT-D02C: 32-channel 24VDC digital input, conformal coated, high-density I/O rack
• JINT-D04: 16-channel 120VAC digital input, isolated, for legacy relay panel integration
• JINT-D08: 8-channel 48VDC digital input, NAMUR sensor compatible

Digital Output (DO) Modules

• JINT-Q01: 16-channel 24VDC digital output, 0.5A per channel, sourcing type
• JINT-Q02C: 16-channel relay output, conformal coated, 2A/channel, SPDT contacts
• JINT-Q04: 8-channel high-current relay output, 5A/channel, for motor starter interfaces

Analog Input (AI) Modules

• JINT-A01: 8-channel 4–20mA analog input, 12-bit resolution, HART pass-through
• JINT-A02C: 16-channel analog input, coated, 4–20mA / 0–10V selectable per channel
• JINT-A04: 4-channel RTD/thermocouple input, Pt100/Pt1000/Type K/J/T, 16-bit

Communication & CPU Interface Modules

• JINT-C01: PROFIBUS-DP slave adapter, 12Mbit/s, for Advant-to-PROFIBUS gateway
• JINT-C02: MODBUS RTU/ASCII communication interface, RS-485, 115.2kbps
• JINT-P01: Backplane power distribution module, 24VDC/5VDC regulated, 10A output

Sourcing Hard-to-Find & Obsolete JINT Parts

ABB has formally discontinued active production of the JINT module series. Replacement within the 800xA or AC500 ecosystem requires engineering re-mapping of I/O addresses and backplane reconfiguration — a process that carries significant downtime risk for operating plants. DriveKNMS maintains a dedicated inventory of new-surplus, refurbished, and tested JINT modules sourced from decommissioned plant equipment, authorized distributor overstock, and factory-sealed legacy stock. For end-users operating Advant OCS or Master series systems beyond their original design life, DriveKNMS provides: (1) direct module replacement with functional equivalents, (2) cross-reference matching for coated vs. non-coated variants, (3) batch procurement for scheduled turnaround maintenance, and (4) emergency same-day dispatch for critical process uptime requirements. All obsolete JINT units are individually serialized and traceable to their sourcing origin.

Quality Control for the JINT Range

JINT series modules incorporate multi-layer PCBs with proprietary ABB backplane edge connectors and onboard EEPROM configuration storage. DriveKNMS applies the following test protocol to all JINT units prior to dispatch: (1) Visual inspection under 10x magnification for conformal coating integrity, solder joint condition, and connector pin alignment. (2) Backplane continuity test using a dedicated ABB-compatible test jig to verify all bus lines (data, address, power, and interrupt) against factory pin-out specifications. (3) Functional power-on test at rated 24VDC supply with current draw verification within ±5% of datasheet nominal. (4) Channel-level I/O verification for all active signal paths using calibrated signal sources (4–20mA loop calibrator, 24VDC pulse generator). (5) Communication interface loopback test for PROFIBUS/MODBUS variants. (6) 48-hour burn-in at 40°C ambient for refurbished units. Each unit ships with a test report and 12-month warranty against functional failure.

For procurement inquiries, cross-reference requests, or emergency sourcing of ABB JINT series modules:

• Email: [email protected]
• WhatsApp: +86 18359293191
• Web: driveknms.com