Product Details
The Honeywell 51202335-100, also cataloged as the 51202335-100 Communication Cable Controller, operates as a dedicated hardware component for serial data bus management and physical signal routing within Honeywell C300 and Series C systems. Designed to manage RS-485 network physical layers, the module accepts an operating voltage of 120 VAC at 60 Hz with a continuous current rating of 10 A. The unit is housed in an IP65 enclosure measuring 94 mm x 140 mm x 89 mm, processing differential RS-485 communication lines to execute multi-drop node synchronization across industrial controller backplanes.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 51202325-100 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.50 kg |
| Dimensions | 94 mm x 140 mm x 89 mm |
| Operating Temp | -40 to +70 deg C |
| Power Consumption | 120 VAC, 60 Hz, 10 A current rating |
| Communication Interface | RS-485 serial interface |
| Ingress Protection | IP65 |
| Storage Temp | -55 to +85 deg C |
| System Platform | Honeywell C300 / Series C Systems |
4-20 mA HART Loop Protocol & Channel-to-Channel Isolation
The 51202335-100 incorporates optoelectronic line isolation between the high-power 120 VAC main supply rails and low-voltage RS-485 communication differential transceivers. When installed alongside analog instrument buses processing 4-20 mA HART loop protocol signals, the internal shielding suppresses common-mode voltage spikes and high-frequency noise. This isolation scheme preserves channel-to-channel isolation parameters and prevents ground potential differences across field cable runs from disturbing serial controller data transmission.
Frequently Asked Questions
Q: Can the RS-485 communication lines be connected or disconnected while the 120 VAC supply is active?
A: High-voltage wiring must be completely isolated before servicing terminals; however, the optically isolated RS-485 communication channels can be reconfigured if proper ground potential equalization is maintained.
Q: What termination impedance is required for the RS-485 bus managed by this cable controller?
A: Standard 120 ohm line-termination resistors should be applied at the physical end nodes of the RS-485 differential pair to prevent signal reflection across high-speed data runs.
Field Installation Guidelines
- Mount the IP65 enclosure securely onto the cabinet DIN-rail or mounting plate using the provided hardware points.
- Connect 120 VAC power leads to the designated power terminals, ensuring line, neutral, and frame earth conductors are wired correctly.
- Terminate RS-485 differential data cables using shielded twisted-pair conductors, bonding the cable shield braid to cabinet ground at a single point.
- Route high-voltage AC lines in separate wireways from RS-485 data paths to maintain signal fidelity and minimize noise coupling.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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