Product Details
The GE 8851-LC-MT, also cataloged as the 8851-LC-MT Safety Control Module, operates as a dedicated hardware component for deterministic safety data transmission within SafetyNet network platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 8851-LC-MT |
| Brand | GE (General Electric) |
| Origin | United States |
| Weight | 2.5 lbs |
| Dimensions | 57 mm x 14.5 mm x 13.4 mm |
| Operating Temp | -40 - 85 deg C |
| Power Consumption | Power Supply: 3.3 V DC |
| Transmission Speed | 10/100/1000 Mbps |
| Operating Wavelength | 1310 nm |
| Transmit Power | -9.5 dBm to 0 dBm |
| Receive Sensitivity | -20 dBm |
| Maximum Distance | 10 km |
| Safety Certification | IEC 61508 SIL 2 |
| Architecture | 1oo1D with internal diagnostics |
Firmware Flash Compatibility and Deterministic Networks
The hardware subsystem executes high-speed optical data frame serialization over a 1310 nm laser wavelength path. Operating within a 1oo1D safety configuration, the controller executes automated internal diagnostic loops to verify physical layer packet integrity. To maintain collision-free packet execution across Profinet, EtherNet/IP, or native SafetyNet deterministic networks, connected node interfaces must align with precise firmware flash compatibility matrices. This prevents sub-millisecond transmission timing drift and protects the safety-loop response times.
Frequently Asked Questions
Q: How does the 1oo1D architecture execute a fail-safe state during an internal hardware diagnostic fault?
A: When internal diagnostics detect an optical degradation or memory register failure, the 1oo1D framework automatically transitions the local channel to its defined de-energized fail-safe state while transmitting a diagnostic fault byte across the backplane.
Q: What are the hot-swap constraints when replacing an active 8851-LC-MT module?
A: Hot-swapping is restricted based on the active state of the optional redundancy link. If a redundant channel is synchronized, the primary unit can be removed without disrupting optical transmission loops; otherwise, the local network segment must be de-energized.
Field Installation Guidelines
- Fiber Optic Cable Bending Radius: Maintain a minimum structural bending radius of 30 mm on all 1310 nm fiber optic patch cables to prevent signal attenuation and preserve receive sensitivity parameters above -20 dBm.
- DIN-Rail and Enclosure Alignment: Mount the module onto standard panel rails inside a sealed cabinet, verifying that the physical clearance path allows natural convective cooling across the -40 to 85 deg C operating window.
- Electrostatic Grounding Sequence: Ensure the hosting chassis framework is bonded to the master facility low-impedance grounding bar prior to inserting the 3.3 V internal logic interface line pins.
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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