DCA1192A Siemens AlgoRex Signal Conditioning Module
Manufacturer: Siemens
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Part Number: DCA1192A
Condition：New with Original Package
Product Type: Analog Input Output Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Siemens DCA1192A Signal Conditioning & Input Output Module
Configured for fire detector line interfacing and monitored alarm-device control in Siemens SynoLOOP and AlgoRex systems, the Siemens DCA1192A (DCA1192A Signal Conditioning & Input Output Module) provides direct physical/electrical execution. This plug-in electronic unit processes field signals directly while maintaining line isolation and fault containment across the system backplane without requiring system shutdown.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DCA1192A |
| Brand | Siemens |
| Origin | Germany |
| Order Number | BPZ:5081200001 |
| Weight | 0.131 kg |
| Dimensions | 100 x 25 x 120 mm |
| Operating Temp | -20 to +60 deg C |
| Power Consumption | 5-10 W |
| Operating Voltage | 24 VDC typical (18-32 VDC external) |
| Detection Line Voltage | 18-22 VDC |
| Detection Line Current | 5 mA maximum |
| Quiescent Current | 45 mA maximum |
| Switching Capacity | 2 A, 60 W maximum |
| Signal Types | 4-20 mA, 0-10 VDC, Digital Logic |
| Isolation | Channel-to-system bus galvanic isolation |
| System Family | Siemens AlgoRex / SynoLOOP / Synova |
Backplane Bus Communication Velocity & Network Execution
The module manages backplane bus communication velocity and deterministic signal processing across Siemens control backplanes. It executes continuous short-circuit and open-line monitoring through integrated line isolators, maintaining sub-millisecond fault localization. Built-in galvanic isolation suppresses ground loops and cross-channel electrical interference between the field input signals and the main system bus, guaranteeing high signal integrity during high-density I/O polling cycles.
Frequently Asked Questions
Q: What is the backplane current draw limit when hot-swapping the DCA1192A electronic unit?
A: The DCA1192A draws a maximum quiescent current of 45 mA at 24 VDC. Field engineers can plug the unit directly into an energized DCB1192A terminal base without causing backplane voltage sags or triggering bus communication faults.
Q: How does the module handle short-circuit isolation on monitored alarm loops?
A: Integrated line isolators instantly isolate faulted loop segments when a short circuit occurs. The module limits detection line current to 5 mA max, maintaining communication across adjacent loop channels without dropping backplane power.
Field Installation Guidelines
Mount the DCB1192A terminal base onto the DIN rail or enclosure housing before inserting the electronic assembly. Strip field wiring to specified length and secure all terminal block connections to ensure proper contact pressure. Ensure field signal cables maintain a 360-deg continuous shield grounding connection at the cabinet entry point to prevent electromagnetic interference. Insert the DCA1192A electronic unit firmly into the DCA1191 housing until the retention clips engage fully. Always verify that external operating voltage remains within 18 to 32 VDC before applying power to the main loop circuits.