Purchase the legacy HONEYWELL 10101/2/1 FSC Digital Input Module. Verified original stock to support your existing safety control infrastructure. Contact us for pricing.
The HONEYWELL 10101/2/1 is a high-reliability, 16-channel fail-safe digital input module belonging to Honeywell’s legacy Fail Safe Control (FSC) safety instrumented system. Configured for safety-critical applications requiring strict adherence to high-integrity standards, this module processes binary signals from fields sensors (such as limit switches, pushbuttons, or flame detectors) and maps them directly into the safety logic solver.
| Parameter | Specification |
|---|---|
| Model Number | 10101/2/1 |
| Brand | HONEYWELL |
| Origin | USA |
| Module Type | Fail-Safe Digital Input Module (16 Channels) |
| Range of Product | Fail Safe Control (FSC) System |
| Input Voltage | 24 VDC (nominal) |
| Weight | 0.14 kg |
| Dimensions | 2 x 18.8 x 12.8 cm |
| Lifecycle Status | Discontinued (Dec 31, 2018) |
| System Architecture | TMR (Triple Modular Redundancy) / Dual Redundant |
The 10101/2/1 module is engineered to operate within safety loops up to SIL3 compliance. It features comprehensive diagnostic monitoring to differentiate between genuine physical field triggers and external wiring faults.
Through its built-in testing routines, the hardware performs periodic background loop testing to identify dangerous undetected failures (such as stuck-at-one inputs or cross-channel shorts). Total galvanic isolation blocks line voltage surges from reaching the central safety processing bus, ensuring the system enforces a strict fail-safe de-energized path when structural line errors are reported.
Q: How does this legacy module manage input fault diagnostics?
A: The module executes integrated line monitoring routines to detect open-circuit paths or short circuits in the field wiring when paired with end-of-line (EOL) resistor setups.
Q: Is this module still supported for active new project installations?
A: No, this unit was officially discontinued on December 31, 2018. It is primarily sourced today to maintain active field replacements or legacy expansion setups for current FSC systems.
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