ABB Harmony DCU System Six

RNS-01 Redundant Network Selector

Interface Terminal Board

686B55U01 ITB/DIM Discrete Input Terminal

Analog Input Termination

HDCU FAN/BATTERY TRAY ASSEMBLY

Fan Battery Tray

Keyboard

ECCP Redundant Controller

Single Slot IOB Blank DCH

ITB/CIO Communication Termination Assembly

ITB-DOR Digital Relay Output Termination Assembly

ITB/DI Dry Contact Input Termination Assembly

HDCU Power Supply

HDCU Power Supply

DCI Power Supply with battery

HDCU Power Supply

PBUS I/O Board

A-Input Board - 24 Point

DCI System Six Digital I/O Module

CIO IOB Module

CIO I/O Board

D-Loop I/O Board

D-Loop I/O Board

A-Loop I/O Board

Card Rack