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The ABB Bailey INNIS21 is a Network Interface Slave (NIS) module designed for the Infi 90 distributed control system. This module serves as a critical communication bridge, facilitating data exchange within the control network. As a slave unit, it manages the interface between the control bus and the associated process hardware, ensuring reliable signal transmission and system integration.
| Model | INNIS21 |
| Manufacturer | ABB |
| Module Type | Network Interface Slave |
| Power Requirements | +5 VDC @ 825 mA (4.1 W) |
| Communication Rates | 10 Mbaud, 2 Mbaud, 0.5 Mbaud |
| Operating Temperature | 0 to 70 degC |
| Storage Temperature | -40 to +85 degC |
| Humidity | 5 to 95% RH (non-condensing) |
Is the INNIS21 module still in production?
No, this module has been discontinued by the manufacturer. We provide high-quality surplus or refurbished units to support legacy system maintenance.
What are the compatible spare model numbers for the INNIS21?
The INNIS21 is compatible with several alternative model designations, including PINNIS21, INNIS21R, and YINNIS21.
What is the primary function of this module?
The INNIS21 acts as a network interface slave, allowing for communication between the Infi 90 control bus and connected field devices or subsystems.