Overview
The Bently Nevada 149776-02, also cataloged as the 149776-02 100 FX Fiber Ethernet Communication Module, operates as a dedicated communication hardware component for fiber optic data transmission within the Trendmaster Dynamic Scanning Module (DSM) system.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 149776-02 |
| Brand | Bently Nevada |
| Product Type | 100 FX Fiber Ethernet Communication Module |
| System Compatibility | Trendmaster Dynamic Scanning Module (DSM); System 1 Software |
| Origin | USA |
| Communication Interface | 100 Base-FX Fiber Ethernet |
| Connector Type | MT-RJ fiber optic connector |
| Network Protocols | TCP/IP, UDP initialization, Modbus over TCP/IP |
| Cable Type | Multimode fiber optic cable |
| Maximum Cable Length | 400 m half duplex; 2,000 m full duplex |
| Modbus Capacity | Supports up to 6 simultaneous clients with 0.5 s response time |
| Power Supply | 20 to 30 VDC integrated DSM power input |
| Maximum Power Consumption | 18 W |
| Fuse Requirement | 1 A slow-blow fuse |
| Operating Temp | -35 deg C to +85 deg C |
| Storage Temp | -51 deg C to +100 deg C |
| LED Indicators | Tri-color Status LED and Link/ACT LED |
Fiber Ethernet Communication and Machinery Monitoring Interface
The 149776-02 module transfers DSM measurement data through a 100 Base-FX fiber optic interface. It provides network communication between Trendmaster monitoring hardware and System 1 software environments. The module uses TCP/IP communication for standard network exchange and supports Modbus over TCP/IP for external data access.
Furthermore, the fiber interface reduces electrical interference effects in industrial environments. The MT-RJ connector provides the physical termination point for multimode fiber connections, while the module maintains communication diagnostics through Link/ACT and Status LED indicators.
For Bently Nevada machinery monitoring applications, the module supports signal data transport from vibration and condition monitoring channels. The system architecture allows collected machinery parameters to integrate into rotor dynamics analysis workflows without changing the original measurement acquisition path.
Frequently Asked Questions
Q: Does the 149776-02 module support copper Ethernet communication?
A: No. The module provides a 100 Base-FX fiber Ethernet interface and requires compatible multimode fiber optic cabling.
Q: How does the 149776-02 handle Modbus communication requests?
A: The module supports Modbus over TCP/IP and allows up to 6 simultaneous clients with a specified response time of 0.5 s.
Q: What installation consideration applies to the fiber connection?
A: The installer should maintain correct multimode fiber routing, avoid excessive bending stress, and verify MT-RJ connector cleanliness before operation.
Field Installation Guidelines
- Install the module according to the Trendmaster DSM hardware configuration requirements.
- Verify the DSM system power supply provides 20 to 30 VDC before connecting the communication module.
- Use compatible multimode fiber optic cable for the 100 Base-FX interface.
- Inspect MT-RJ connectors for contamination or mechanical damage before fiber connection.
- Separate fiber communication routing from high-voltage power wiring where possible to maintain signal integrity.
- Confirm Link/ACT LED activity after network connection to verify communication status.
- Perform network configuration checks before enabling Modbus TCP/IP communication with external systems.
Reviews
There are no reviews yet.