The ABB NTDI21-A Termination Unit is an industrially hardened interface module designed to manage and route discrete process input telemetry from factory floor instrumentation directly to a central DCS framework. Functioning as a secure terminal landing board, it bridges field instrumentation cables with system-side digital input processing modules. The board is engineered to optimize signal management, filter electromagnetic line distortion, and safeguard sensitive controller logic from accidental high-voltage transients or ground-loop disruptions.

² Input Voltage Spectrum: Universally supports standard process loop voltages including 24 VDC, 48 VDC, 125 VDC, or 120 VAC.

² Galvanic Isolation Protection: Features integrated high-level isolation properties rated up to 2500 Vrms.

² urge Protection Rating: Built-in surge suppressors protect downstream equipment against voltage spikes up to 5 kV.

² Operating Temperature Window: Hardened for standard plant-floor cabinetry, operating from 0°C to 55°C (32°F to 131°F).

² Storage Temperature Tolerance: Resilient across facility warehouse climates spanning from -40°C to 85°C.

Field Signal Landing & Management:

Industrial Noise Suppression:

Loop Transient Isolation:

Serves as a centralized physical termination bridge for routing raw, discrete input cables from field sensors directly into cabinet modules.

Safeguards upstream DCS modules against high-frequency cross-talk, magnetic spikes, and localized electrical noise originating near heavy field equipment.

Deployed in sprawling multi-ground environments to provide structural surge and galvanic protection across multi-voltage field control setups.

PFSK104-YM322001-EB

FPS400-24 P0922YU

S9129FA

CM2201 7400206-100

DSTD196 3BES004725R1

P0914XB

NFBU200-S05 S2

DI 2301 7400208C-020

1SFB527068D7084

FBM207C

AMM12 S3

4000188-310

GJR2390200R1411 83SR04C-E

FBM218 P0922VW

F3RP45-2P

7400210-010

NGDR-07C NGDR-07 FF650R17IE4

FCM2F10 P0916TQ

NFCCC01

7400121-380

SDCS-UCM-1C 3ADT220090R0008

CP60 P0961FR

NFCP100-S05 S3

SDO3411

3BHB002953R0108 XVC723 AE108

FBM218

NFCP501-S05-S1

AO3481 S2

3HAC025466-001

P0926JMA

SDV531-S33 S3

DI3301 S2

CI810B-3BSE020520R1

FCM10E P0914YM

S9342FA

9674-810 7760050015

ZCU-14 3AXD50000005164

P0931RQ

NFTI3S-10 S2

7400221-100