Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 38500143-200 |
| Manufacturer | Honeywell (Industrial Automation & Control Solutions) |
| Product Type | Hub Assembly / IOP Backplane (Connector Panel) |
| Control System | TDC 3000 (also compatible with TPS architecture) |
| Network / Bus | Local Control Network (LCN) |
| Associated Module Type | IOP — Input/Output Processor modules |
| Processor Interface | LCN Processor (LCNP) board |
| Mounting Location | TDC 3000 Century cabinet / LCN cabinet IOP mounting location |
| Connector Type | Card-edge / backplane connectors (IOP slot connectors) |
| Slots Supported | Multiple IOP modules (per cabinet configuration) |
| Communication | LCN, redundant LCN path support |
| Power Supply | Supplied via cabinet/LCN power distribution |
| Indicators | Module-status linkage via IOP front-panel LEDs |
| Construction | Ruggedized printed circuit backplane with controlled-impedance traces |
| Operating Temperature | 0 °C to +55 °C (typical cabinet environment) |
| Humidity | 5% to 95% RH, non-condensing |
| Certifications | CE / UL (per Honeywell system certification) |
Main Features and Advantages
Centralized IOP interconnect backbone: The Honeywell 38500143-200 consolidates the interconnections among all IOP modules and the LCNP into a single, structured backplane. This eliminates point-to-point wiring between processors, reduces installation and troubleshooting time, and ensures consistent signal timing and impedance across the IOP set.
LCN communication integrity: By providing the dedicated path between IOP modules and the LCN Processor, the Honeywell 38500143-200 preserves the deterministic, token-passing LCN data exchange that TDC 3000 depends on. Clean backplane connections and controlled signal integrity mean fewer communication errors, fewer dropped points, and more stable control-loop execution.
Exact-form-fit, drop-in replacement: The Honeywell 38500143-200 is manufactured to the original Honeywell mechanical and electrical specifications, preserving slot spacing, connector footprint, mounting holes, and pin mapping. This allows a direct point-to-point swap — no cabinet modification, no rewiring, and no control-program changes are required.
Support for redundant architecture: The hub assembly supports the redundant LCN topology that gives TDC 3000 its high-availability character. With proper configuration, a failure in one communication path can be tolerated without loss of control, and the Honeywell 38500143-200 is designed to maintain that fault-tolerant structure at the IOP-backplane level.
Broad IOP compatibility: The Honeywell 38500143-200 accommodates the range of TDC 3000 IOP types — including High-Level Analog, Low-Level Analog, Discrete, Serial, PIU (Process Interface Unit), and specialty IOPs — making it a single, common spare across heterogeneous I/O installations.
Legacy-asset life extension: For facilities committed to running mature but highly stable TDC 3000 / TPS systems, the Honeywell 38500143-200 closes a critical spare-parts gap. Replacing a degraded hub at the board/carrier level is far more economical than a full cabinet or system migration, and it preserves the plant’s investment in application engineering, graphics, and operator training.
