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Engineered for ABB Bailey INFI 90 Network Communication
This module connects INFI 90 controllers to the plant communication network. It provides reliable data exchange for the ABB Bailey NDSM02 unit. You will find this interface in distributed control system architectures. Unlike basic adapters, this version supports redundant network paths. It handles high-speed data transfer between multiple control nodes.
Technical Specifications & Physical Dimensions
We designed this network module for industrial communication reliability. The table below presents all verified technical specifications.
| Parameter | Specification |
|---|---|
| Physical Dimensions (W x H x D) | 160mm x 120mm x 50mm |
| Total Weight | 0.52 kg (520 grams) |
| Network Interface | RS485 (Bailey Network) |
| Transmission Speed | 1.5 Mbps maximum |
| Maximum Nodes | 32 devices per segment |
| Maximum Cable Length | 1200 meters per segment |
| Operating Voltage | 24V DC (18V – 32V) |
Functional Architecture and Network Management
This interface module connects to the INFI 90 controller backplane. It uses a dedicated communication processor for network tasks. You can configure the module as master or slave on the network. Moreover, the unit includes automatic error detection and retransmission. These components recover corrupted messages without operator intervention. Consequently, the board ensures reliable data delivery between controllers.
Installation and Operational Guidelines
The ABB Bailey NDSM02 processes up to 1000 messages per second. It consumes 150 mA at 24V DC during normal operation. You must terminate both ends of the RS485 cable network. Always use twisted-pair shielded cable with a characteristic impedance of 120 ohms. This practice prevents signal reflections and data corruption. Furthermore, the module supports redundant network cable connections. This feature provides automatic failover if one cable breaks.
Physical Characteristics and Environmental Limits
This network module has a rugged, industrial-grade plastic housing. Its moderate 0.52 kg weight allows for easy rack mounting. The layout follows ABB Bailey standard INFI 90 specifications. Therefore, it fits securely into any INFI 90 controller rack. The module includes LED indicators for network activity and status. In addition, it maintains stable operation between 0°C and 60°C ambient temperature. You can store this unit safely between -25°C and 85°C.