KONGSBERG 1E-221 Modules: NA-1E221/1E-221.1 Panel Card

Technical Dossier

Product Details And Specifications

KONGSBERG 1E-221 Series: Comprehensive Module Range and Technical Overview

The KONGSBERG 1E-221 series represents a core hardware platform within the KONGSBERG SDP (Ship Dynamic Positioning) and industrial automation control systems, deployed extensively across offshore oil & gas platforms, petrochemical plants, marine vessels, and power generation facilities. These panel cards and associated I/O modules form the backbone of KONGSBERG's legacy distributed control architecture, with documented installations in North Sea drilling rigs, LNG terminals, and refinery automation systems. The series operates within the broader KONGSBERG Albatross and K-Pos control system families, making long-term spare parts availability a critical operational requirement for asset operators worldwide.

The Evolution of 1E-221 Architecture

The 1E-221 hardware family was introduced as part of KONGSBERG's modular panel card architecture in the 1980s–1990s, designed for high-reliability environments requiring deterministic control loops. Early revisions used passive backplane bus communication with discrete analog signal conditioning. Subsequent iterations introduced improved EMI shielding and extended temperature tolerance for marine and offshore environments. The series interfaces with KONGSBERG's proprietary station bus and is not directly compatible with open fieldbus standards such as PROFIBUS or FOUNDATION Fieldbus without dedicated gateway modules. As KONGSBERG transitioned toward the K-Chief and cPos platforms in the 2000s, the 1E-221 series entered a maintenance and lifecycle phase. Operators running legacy Albatross DP systems or K-Pos 500/6000 installations continue to depend on 1E-221 panel cards for corrective maintenance, as full system replacement carries prohibitive downtime and capital costs. Compatibility between sub-revisions (e.g., /1E-221.1 vs /1E-221.2) must be verified against the specific backplane slot assignment and firmware revision of the host cabinet.

1E-221 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified components within the KONGSBERG 1E-221 and closely associated panel card families. Each module is classified by functional role within the control system architecture.

Panel Cards & Controller Modules

• NA-1E221/1E-221.1: Main panel card, station bus interface, primary control node for Albatross DP cabinet
• NA-1E221/1E-221.2: Revised panel card variant with enhanced bus arbitration logic and updated component revision
• NA-1E221/1E-221.3: Third-generation panel card with improved thermal management for high-ambient installations
• NA-1E220/1E-220.1: Companion processor card, handles executive control loop computation within the same cabinet family
• NA-1E220/1E-220.2: Updated processor card revision, compatible with 1E-221.2 backplane slot assignments

Analog I/O Modules

• NA-1E222/1E-222.1: Analog input card, 8-channel, 4–20 mA signal conditioning for sensor interfacing
• NA-1E222/1E-222.2: Analog input card, extended range, supports ±10 V and 4–20 mA dual-mode inputs
• NA-1E223/1E-223.1: Analog output card, 8-channel, 4–20 mA, drives final control elements and actuators
• NA-1E223/1E-223.2: Analog output card, high-resolution 16-bit DAC variant for precision thruster control applications

Digital I/O Modules

• NA-1E224/1E-224.1: Digital input card, 16-channel, 24 VDC, dry contact and wet contact compatible
• NA-1E224/1E-224.2: Digital input card, 32-channel, high-density configuration for alarm and status monitoring
• NA-1E225/1E-225.1: Digital output card, 16-channel, relay-driven, rated for 24 VDC / 2 A per channel
• NA-1E225/1E-225.2: Digital output card, solid-state relay variant, extended cycle life for high-frequency switching

Communication & Power Modules

• NA-1E226/1E-226.1: Serial communication adapter card, RS-232/RS-422 dual-port, station bus to peripheral device interface
• NA-1E227/1E-227.1: Power supply card, 24 VDC regulated output, internal cabinet bus power distribution
• NA-1E228/1E-228.1: Redundancy switchover card, manages hot-standby controller failover within dual-redundant cabinet configurations
• NA-1E229/1E-229.1: Backplane termination card, provides bus termination and diagnostic test points for the 1E-221 cabinet chassis

Sourcing Hard-to-Find & Obsolete 1E-221 Parts

KONGSBERG officially discontinued active production of the 1E-221 panel card series as the platform transitioned to next-generation K-Chief 600 and K-Chief 700 architectures. However, the installed base of legacy Albatross DP and K-Pos systems remains substantial, particularly on vessels and platforms with design lives extending to 2030 and beyond. DriveKNMS maintains a dedicated inventory of verified 1E-221 series modules sourced through controlled decommissioning projects, OEM surplus channels, and certified refurbishment programs. All units are catalogued by part number, hardware revision, and functional test status prior to listing. For operators requiring long-term maintenance agreements or scheduled spare parts kitting for annual dry-dock cycles, DriveKNMS provides multi-unit procurement packages with documented traceability. Obsolete sub-variants including early /1E-221.1 revisions are held in stock specifically to support systems where cross-revision substitution is not approved by the vessel's class society or the OEM service documentation.

Quality Control for the 1E-221 Range

The 1E-221 panel card family presents specific test challenges due to its proprietary backplane bus protocol and multi-layer PCB construction. DriveKNMS applies the following verification procedures to all 1E-221 series units prior to dispatch: (1) Visual inspection under 10× magnification for PCB trace integrity, capacitor condition, and connector pin alignment. (2) Powered bench test using a KONGSBERG-compatible backplane test fixture to verify bus communication handshake and station address assignment. (3) Analog channel calibration verification for all AI/AO variants, confirming signal linearity within ±0.1% of full scale. (4) Digital I/O channel functional test, confirming correct logic state response across all 16 or 32 channels. (5) Thermal soak test at 55°C for 4 hours to screen latent component failures. (6) Final ESD-safe packaging with humidity indicator cards and nitrogen-purged anti-static bags for long-term storage compatibility. Each unit ships with a test report referencing the specific serial number and test date.