Description
Honeywell 51403519-160K4LCN-16
Technical Specifications
- Network type: Upgraded TPS LCN-16 high-speed redundant network
- Communication rate: 16 Mbps, 3x speed of standard LCN
- Ports: Dual redundant coax BNC interfaces
- Backplane interface: TPS operator station / controller VME bus
- Supply power: 5 V DC from backplane
- Operating temperature: 0 °C to +60 °C
- Maximum node count: 128 nodes per LCN-16 segment
Functional Features 16 Mbps high-speed network bandwidth, supports more connected nodes and faster data transfer. Backward compatible with existing LCN network cabling, no full cable replacement required for upgrade. Dual redundant network links, automatic switchover on primary link failure. On-board signal equalization, compensates for legacy cable signal attenuation. On-board LEDs indicate network link and data activity status. Firmware configurable, supports both 5 Mbps legacy and 16 Mbps high-speed modes.
Application Scenarios Network bandwidth upgrade for large TPS systems Spare part replacement for LCN-16 expansion board faults Large plant TPS network retrofits Support for additional operator station and controller nodes
Performance Parameters
- Network latency: ≤1 ms at 16 Mbps
- Maximum cable length: 300 meters per segment
- Signal attenuation compensation: Up to 40 dB
- Mean time between failures: 550,000 hours
- Switchover time between redundant links: ≤1 ms
Material Composition FR4 high-speed PCB substrate LCN-16 network controller chip High-speed differential equalizer Gold-plated BNC connectors Metal shielded front panel Gold-plated VME edge fingers
Structural Features Standard VME form factor board. Front panel houses dual BNC network interfaces. LED array shows network link and data transfer status. Equal-length differential traces match high-speed signal timing requirements. Metal shielded enclosure contains high-speed network radiation.
Working Principle The board communicates with the station processor over the VME bus, packaging process data into LCN-16 high-speed network frames. Data transmits over the dual redundant coax network to other nodes on the upgraded segment. On-board equalizer compensates for signal attenuation across legacy plant cabling, restoring clean signal levels for 16 Mbps operation. The link monitor checks signal quality on both redundant networks; active link failure triggers automatic switchover to the backup path.
Installation Requirements Insert the board into the dedicated LCN slot in the station or controller. Connect network coax cables to the A and B BNC interfaces. Configure network speed mode in TPS engineering software, confirm 16 Mbps operation. Check link LEDs, confirm both redundant paths show normal lock.
Usage Notes All nodes on the upgraded segment must run matching LCN-16 firmware; mixed revisions cause network errors. Network segment endpoints require 75 Ω termination resistors; missing termination causes signal reflection. Node count must not exceed 128 per segment; overloading causes excessive network collision. Loose BNC connectors cause intermittent packet loss; tighten connectors during routine maintenance.
