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The Black Box LGC340A is an industrial-grade Gigabit Ethernet media converter that enables seamless fiber-to-Ethernet connectivity. Designed for harsh environments, it converts 10/100/1000Base-T copper signals to 1000Base-SX or LX fiber optics, facilitating long-distance, high-speed data transmission in industrial, transportation, and outdoor networking applications.
This media converter supports multiple fiber types by accommodating hot-swappable SFP modules, providing flexibility in network design and future upgrades. Its industrial-grade construction ensures reliable operation under extreme temperatures and environmental conditions common in factory floors, outdoor deployments, and critical infrastructure networks. With automatic MDI/MDIX crossover detection and full duplex flow control, the LGC340A optimizes data transmission, reducing collisions and packet loss.
The device supports plug-and-play installation, making it easy to integrate without complex configuration. Its compact form factor and DIN rail or wall mounting options enable versatile placement in tight spaces or network cabinets, supporting efficient and organized network infrastructure deployment.
Built to withstand harsh industrial conditions, the LGC340A features rugged metal housing with extended temperature range support (-40°C to 75°C), ensuring stable performance in extreme environments. Its advanced error detection and link fault pass-through mechanisms maintain network integrity and uptime. Support for IEEE standards ensures compatibility with a wide range of network equipment, delivering consistent, high-speed data transfer with low latency.
| Feature | Specification |
|---|---|
| Model Number | LGC340A |
| Brand | Black Box |
| Product Type | Gigabit Ethernet Industrial Media Converter |
| Copper Port | 1 x 10/100/1000Base-T RJ-45 |
| Fiber Port | 1 x SFP slot (1000Base-SX/LX) |
| Fiber Module Support | Hot-swappable SFP (multi-mode or single-mode) |
| Data Rate | 10/100/1000 Mbps |
| Media Conversion | Copper to fiber optic |
| Operating Temperature | -40°C to 75°C (-40°F to 167°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Humidity | 5% to 95% non-condensing |
| Mounting | DIN rail, wall mount |
| Power Supply | 12V DC (adapter included) |
| Dimensions (W x D x H) | Approx. 4.5 x 3.0 x 1.0 in (114 x 76 x 25 mm) |
| Weight | Approx. 0.7 lbs (320 g) |
| Compliance | IEEE 802.3, 802.3u, 802.3z, RoHS |

All packages are shipped same day if the order is placed before 3PM CST
We use UPS/FedEx to ship the packages with different service levels offered by UPS/FedEx
Overnight Shipping take 1 business day
Expedited Shipping take about 2-3 business days
Ground shipping take about 3-5 business days
You can select the desired service level at Checkout and we will make sure the package is shipped as per the selected service level.
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Call: 469.458.9636
Email: sales@dcsupplies.net
If you have any queries, please contact us at the following details and we will be happy to help
Call
469.458.9636
469.458.9638
Email
sales@dcsupplies.net
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Black Box LGC340A Gigabit Ethernet Industrial Media Converter
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