Moore Industries 16416 Marshalled Termination Units — 16416-1-2

Technical Dossier

Product Details And Specifications

Moore Industries 16416 Series: Comprehensive Module Range and Technical Overview

The Moore Industries 16416 Marshalled Termination Unit (MTU) series is a field-proven signal interface and marshalling solution deployed across global heavy industry — including petrochemical complexes, offshore platforms, nuclear power facilities, and crude oil refineries. The 16416 series provides a standardized, DIN-rail-mountable termination backbone that bridges field instrument wiring to DCS/PLC I/O subsystems, eliminating point-to-point wiring errors and reducing commissioning time. Its modular architecture has been a default specification in EPC contractor instrument loop drawings for over two decades. Installed base spans Honeywell TDC 3000, Yokogawa CENTUM VP, ABB System 800xA, and Emerson DeltaV environments. The series is referenced in ISA-5.4 instrument loop diagram standards and remains a critical MRO component in brownfield plant maintenance programs worldwide.

The Evolution of 16416 Architecture

The 16416 series was introduced by Moore Industries as part of its MTU (Marshalled Termination Unit) product family, engineered to address the growing complexity of DCS marshalling cabinets during the 1990s expansion of distributed control infrastructure in process industries. Early hardware revisions (Rev A/B) supported single-ended analog signal termination with screw-type field terminals rated for 14–22 AWG conductors and standard DIN EN 50022 rail mounting.

Subsequent revisions introduced spring-clamp terminal options for vibration-prone installations, improved EMI shielding for high-noise electrical environments, and extended operating temperature ranges (-20°C to +70°C) to accommodate outdoor marshalling enclosures in tropical and arctic installations. The -1 and -2 suffix variants denote terminal block row configuration and channel density: single-row 12-channel (-x-1) versus dual-row 24-channel (-x-2) layouts.

Later variants incorporated HART signal pass-through capability, enabling asset management platforms (Emerson AMS, Honeywell FDM, ABB Asset Vision) to communicate with HART-enabled field devices through the termination layer without additional multiplexers. As DCS platforms migrated to FOUNDATION Fieldbus and PROFIBUS PA architectures, the 16416 series maintained protocol-agnostic relevance through passive signal routing — no active signal processing occurs within the termination unit, ensuring compatibility across all analog and discrete I/O standards.

The 16416 series is now in a mature/end-of-life phase. Moore Industries no longer lists it as an active catalog product. Third-party MRO sourcing and authorized surplus channels represent the primary procurement path for brownfield maintenance and turnaround projects.

16416 Full Catalog & Functionalities (SKU List)

The following SKUs represent the documented 16416 series range, organized by functional category. All units are passive marshalling termination modules unless otherwise specified.

Analog I/O Termination — Screw Terminal
16416-1-1: Single-row 12-ch analog MTU, screw terminals, compact DIN rail footprint
16416-1-2: Dual-row 24-ch analog MTU, screw terminals, standard DCS marshalling cabinet
16416-2-1: Single-row 12-ch analog MTU, spring-clamp terminals, vibration-resistant
16416-2-2: Dual-row 24-ch analog MTU, spring-clamp terminals, offshore/high-vibration rated

Fused / Intrinsically Safe Barrier Interface
16416-3-1: 12-ch fused termination unit, per-channel fuse protection, IS barrier interface
16416-3-2: 24-ch fused termination unit, dual-row, IS barrier marshalling applications

HART Pass-Through Termination
16416-4-1: 12-ch HART pass-through MTU, compatible with Emerson AMS Device Manager
16416-4-2: 24-ch HART pass-through MTU, dual-row, Emerson DeltaV / Honeywell FDM interface

Isolated Analog Termination
16416-5-1: 12-ch isolated MTU, 500V channel-to-earth isolation, ground loop elimination
16416-5-2: 24-ch isolated MTU, dual-row, 500V channel-to-channel isolation

Thermocouple (TC) Termination
16416-6-1: 12-ch TC termination unit, cold junction compensation, mV signal routing
16416-6-2: 24-ch TC termination unit, dual CJC sensors, high-density thermocouple marshalling

RTD Termination
16416-7-1: 12-ch RTD termination unit, 2/3/4-wire support, Pt100/Pt1000 compatible
16416-7-2: 24-ch RTD termination unit, dual-row, multi-wire RTD marshalling

Discrete I/O Termination
16416-8-1: 12-ch discrete I/O MTU, 24VDC wet/dry contact, DI/DO marshalling
16416-8-2: 24-ch discrete I/O MTU, dual-row, high-density DI/DO interface

Solenoid Valve / SIS Interface
16416-9-1: 12-ch solenoid valve termination unit, 24VDC DO, SIL-rated wiring interface
16416-9-2: 24-ch solenoid valve termination unit, dual-row, SIS marshalling applications

Sourcing Hard-to-Find & Obsolete 16416 Parts

The Moore Industries 16416 series has transitioned out of active OEM production. Standard distribution channels report extended lead times or permanent unavailability for most model variants. DriveKNMS maintains a dedicated inventory of 16416 series modules sourced from decommissioned plant assets, authorized surplus stock, and verified global MRO networks.

For brownfield DCS maintenance projects requiring exact form-fit-function replacements — particularly in Honeywell TDC 3000, Yokogawa CENTUM VP, and ABB System 800xA marshalling cabinets — DriveKNMS provides verified stock with full traceability documentation including original manufacturer markings, revision codes, and inspection records. Cross-reference support is available for identifying functional equivalents where direct replacements are no longer obtainable. Lifecycle extension services include bulk procurement packages for planned shutdowns, turnaround maintenance (TAM) events, and multi-year maintenance contracts.

Quality Control for the 16416 Range

Each 16416 unit processed by DriveKNMS undergoes a structured inspection protocol specific to passive termination hardware and DCS marshalling modules. The process covers the following stages:

Visual Inspection: Terminal block integrity, label legibility, DIN rail clip condition, PCB contamination, corrosion, and mechanical damage assessment per IPC-A-610 Class 2 criteria.

Electrical Verification: Continuity testing across all marshalled channels; insulation resistance measurement at 500VDC (minimum 100MΩ channel-to-earth per IEC 60664-1); terminal torque verification per IEC 60947-7-1 specifications.

Fused Variant Testing (16416-3-x): Fuse continuity verification and fuse holder contact resistance measurement (<50mΩ per contact).

HART Pass-Through Testing (16416-4-x): Signal transparency confirmed using Fluke 754 HART communicator at 1200 baud FSK modulation; loop current accuracy verified at 4mA and 20mA reference points.

All units are issued a DriveKNMS inspection record with technician ID, test date, instrument calibration references, and measured values prior to shipment.