Honeywell 10105/2/1 Fail-Safe High-Density Analog Input Module
The Honeywell 10105/2/1, also cataloged as the 10105/2/1 Fail-Safe High-Density Analog Input Module, operates as a dedicated hardware component for 16-channel analog signal acquisition within Honeywell FSC system networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 10105/2/1 |
| Brand | Honeywell |
| Origin | Manufacturer Standard Facility |
| Weight | Standard 3U Eurocard profile (~0.3 kg typical) |
| Dimensions | 4 TE, 3 HE (4 HP, 3U) |
| Operating Temp | Standard industrial cabinet ratings (0 deg C to 60 deg C typical) |
| Power Consumption | 5 VDC at 35 mA, 24 VDC at 35 mA |
| Number of Input Channels | 16 |
| Nominal Input Range | 0 to 4.1 VDC |
| Input Resistance | > 1 MΩ |
| A/D Converter Resolution | 12-bit |
| A/D Converter Inaccuracy | ±1 LSB |
| Module Inaccuracy | < 0.25% |
| Absolute Maximum Input Signal | ±36 VDC |
| Channel Crosstalk | > 60 dB |
| Safety Classification | AK1-6 (AK6 in redundant mode) |
| Software Compatibility | Version 500 or later |
Channel Isolation and Signal Conversion Architecture
The module executes precision analog signal processing utilizing a robust 12-bit analog-to-digital converter architecture designed for safety-critical loops. Channel-to-channel isolation integrity prevents common-mode noise propagation across adjacent loops with a crosstalk attenuation exceeding 60 dB. External field signals, such as standard 4-20 mA current loops, require dedicated termination hardware like the FTA-T-14 or 10105/A/1 conversion modules to scale inputs to the nominal 0 to 4.1 VDC range while maintaining fault tolerance across redundant node configurations.
Frequently Asked Questions
Q: What is the backplane power consumption profile for the 10105/2/1 module?
A: The module draws 35 mA from the 5 VDC backplane rail and 35 mA from the 24 VDC power supply rail during standard operational states.
Q: Does the module support redundant architecture configurations?
A: Yes. When deployed in redundant mode, the safety classification scales up to AK6, executing continuous self-diagnostic verification and external voltage readback between 0 to 4.1 V.
Q: What is the required physical slot dimension in the chassis?
A: The unit occupies 4 TE width and 3 HE height (4 HP, 3U), conforming to standard Eurocard euro-rack physical dimensions.
Field Installation Guidelines
- Verify that backplane power supplies are de-energized before inserting or extracting the module to prevent backplane bus terminal arcing.
- Ensure proper physical seating within the 4 TE, 3 HE euro-rack chassis slots, tightening front panel retaining screws to maintain mechanical stability and ground continuity.
- Terminate field current signals through approved conversion units such as the FTA-T-14 or 10105/A/1 modules before routing to the analog input terminals.
- Maintain proper shield grounding for all signal cables to minimize electromagnetic interference across the 16 input channels.
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