Fail-Safe Digital Input Modules | Honeywell 10101/2/1 FSC
Manufacturer: HONEYWELL
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Part Number: 10101/2/1
Condition：New with Original Package
Product Type: Digital Input Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Honeywell 10101/2/1 FSC Fail-Safe Digital Input Module
The Honeywell 10101/2/1, also cataloged as the 10101/2/1 Fail-Safe Digital Input Module, operates as a dedicated hardware component for processing sixteen discrete input channels within Honeywell Fail Safe Control (FSC) architectures.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 10101/2/1 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.22 lbs |
| Dimensions | 4 TE x 3 HE (4 HP, 3U eurocard format) |
| Operating Temp | Standard industrial operating range |
| Power Consumption | 5 VDC at 8 mA; internal 24 VDC at 110 mA; external 24 VDC at 110 mA |
| Number of Input Channels | 16 digital inputs |
| Nominal Input Voltage | 24 VDC (maximum 36 VDC) |
| Logic Thresholds | Logic HIGH > 15 VDC; Logic LOW < 9 VDC (I < 2 mA) |
| Input Delay | 10 ms typical |
Channel-to-Channel Isolation and DCS Network Connectivity
The module acquires binary field signals while maintaining strict electrical separation across individual input circuits to suppress crosstalk and electromagnetic interference. Internal diagnostic mechanisms continuously evaluate logic-level reception and verify input transition states to ensure predictable behavior during safety-critical events. Furthermore, channel-to-channel isolation safeguards internal processor logic from external loop disturbances, while support for both redundant and non-redundant backplane configurations ensures continuous data availability across the control system network.
Frequently Asked Questions
Q: What are the voltage thresholds for recognizing valid logic states on the input channels?
A: A signal is registered as Logic HIGH when input voltage exceeds 15 VDC, and as Logic LOW when voltage drops below 9 VDC with an input current under 2 mA.
Q: How is the module powered during operation?
A: The module draws power from multiple rails, consuming 8 mA at 5 VDC, 110 mA from the internal 24 VDC supply, and 110 mA from the external 24 VDC supply for input loops.
Q: What physical keying mechanism prevents incorrect module insertion into the rack?
A: Module connector coding utilizes keying pins located at positions A5 and C5 to match corresponding large pins on the FSC rack backplane.
Field Installation Guidelines
Verify that the rack power is de-energized before handling the module. Align the eurocard PCB edges with the designated 4 TE wide guide slots in the Honeywell FSC chassis. Push the module evenly into the backplane until the rear DIN connector seats securely and the keyed pins at positions A5 and C5 engage completely. Fasten the front panel securing screws to maintain chassis ground continuity and mechanical stability before applying system power.