ماژول Redundant termination unit ABB مدل TU921S RTU (TU16R-Ex)، کد فنی 3KDE175111L9210

The remote S900 I/O system can be installed in non-hazardous areas or directly in Zone 1 or Zone 2 hazardous area depending on the selected system variant. S900 I/O communicates with the control system level using the PROFIBUS DP standard. The I/O system can be installed directly in the field, therefore the costs for marshalling and wiring are reduced.
The system is sturdy, error-tolerant and easy to service. Integrated disconnection mechanisms allow replacement during operation, meaning that there is no need to interrupt the primary voltage in order to exchange the power supply units.
S900 I/O type S. For installation in hazardous area Zone 1. For connecting intrinsically safe field devices installed in Zone 2, Zone 1 or Zone 0.

TU921S Redundant Termination Unit (TU16R-Ex), for 16 I/O-modules, redundant communication and power (Delivery includes CD910).
Features and benefits

ATEX Certification for installation in Zone 1
Redundancy (Power and Communication)
Hot Configuration in Run
Hot Swap functionallity
Extended Diagnostic
Excellent configuration and diagnostics via FDT/DTM
G3 – coating for all components
Simplified maintenance with auto-diagnostics
Termination unit for up to 16 I/O modules
Prepared for redundant system power and communication
Up to 4 terminals per channel
Preselection of fieldbus address
Prepared for certified field housing
Mounting in Zone 1, Zone 2 or safe area possible (3KDE175111L9210)