Bently Nevada 3500/20 125768-01 Data Manager I/O Module (Rear Card)

Overview

350020 125760-01

350020 125760-01

Specifications & Parameters

Key Features & Characteristics

• Dual-Port Communication Architecture: The 125768-01 provides two independent Data Manager ports (Port 1 and Port 2), each capable of connecting to a separate Communication Processor. Each port supports up to 24 channels of static and dynamic data transfer.
• Static & Dynamic Data Transfer: The module supports both static data (proportional values, alarm statuses, and system health) and dynamic data (waveform and transient data) routing to external TDIX/DDIX processors.
• Flexible Monitor Assignment: Through Rack Configuration Software, users can assign specific monitor slots to either Data Manager Port 1 or Port 2. This allows optimized data traffic management when multiple communication processors are deployed.
• Rack-Type Adaptive: The module automatically adapts to Standard, TMR with Bussed Relay, and TMR with Individual Relays rack configurations, with pre-defined slot assignment schemes for each topology.
• Hot-Swap Compatible: The 125768-01 can be inserted or removed without disrupting rack operation, provided the RIM main board remains installed. However, note that Data Manager I/O communication will cease if the RIM is removed.
• Compact Full-Height Design: Occupies only one full-height rear slot, preserving rack capacity for monitoring and relay modules in the front slots.

Installation Guidelines

1. Rack Positioning: The 125768-01 must be installed in the full-height rear slot directly behind the 3500/20 RIM main board (Slot 1 rear). In a Rack Mount or Panel Mount configuration, it mounts between the Power Input Modules and the Rack Interface I/O Module. In a Bulkhead rack, it installs above the power supplies.
2. Cable Connections: Four primary cable groups connect to the Data Manager I/O Module:
   • Static Data Port 1 → TDIX/DDIX static connector (Cable 129386-01 or 129387-01)
   • Dynamic Data Port 1 → TDIX/DDIX dynamic connector (Cable 02290160)
   • Static Data Port 2 → Second TDIX/DDIX static connector
   • Dynamic Data Port 2 → Second TDIX/DDIX dynamic connector
3. Maximum Cable Lengths:
   • RS-232: 30 meters (100 feet) maximum
   • RS-422: 1,200 meters (4,000 feet) maximum
4. Configuration Verification: After installation, use the 3500 Rack Configuration Software to verify Data Manager port assignments and confirm communication with connected TDIX/DDIX processors.

Repair & Maintenance

• Module Replacement: The 125768-01 can be replaced while the rack remains powered, as long as the RIM main board is not removed. Always power down or ensure redundant communication paths before servicing if continuous data acquisition is critical.
• Connector Inspection: Periodically inspect the four data ports for loose connections, bent pins, or corrosion. Use only Bently Nevada-approved cables (P/N 129386-01, 129387-01, 02290160) to ensure signal integrity.
• Troubleshooting: If TDIX/DDIX communication is lost:
  • Verify the 125768-01 is firmly seated in the rear slot.
  • Check cable connections at both the Data Manager I/O and Communication Processor ends.
  • Confirm the RIM main board (125744-01 or 125744-02) is operational and its OK LED is illuminated.
  • Review Rack Configuration Software to ensure correct monitor-to-port assignments.
  • Persistent communication failure may indicate internal Data Manager I/O degradation requiring module replacement.
• Spare Parts Strategy: Maintain an on-site spare 125768-01 to minimize Mean Time To Repair (MTTR) in critical machinery protection applications where continuous data acquisition to host systems is required.

Same-Series Models & Compatible Part Numbers

Ordering Code Structure (3500/20-AXX-BXX-CXX)