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The Black Box LES421A is a durable, 1-port serial device server designed to convert serial data streams into Ethernet network signals in demanding industrial environments. Its rugged build ensures reliable operation amidst dust, vibration, and temperature extremes, making it perfect for connecting legacy serial devices to modern network infrastructures in factories, outdoor installations, or remote sites.
Built to withstand tough conditions, the LES421A allows seamless remote access to serial devices—such as sensors, controllers, or instrumentation—without the need for physical site visits. Its hardened design ensures dependable performance where environmental factors are challenging. The device simplifies network integration by supporting web-based configuration, enabling quick setup and easy management via any standard web browser from your office or home.
This serial device server reduces downtime and enhances productivity by allowing quick troubleshooting, configuration adjustments, or firmware updates remotely. Its user-friendly software interface eliminates complex setup procedures, enabling even non-technical personnel to manage connected devices efficiently. Whether deployed on a factory floor or in remote outdoor environments, the LES421A provides robust, flexible connectivity for industrial applications.
Constructed from industrial-grade materials, the LES421A is engineered for durability and stable operation in extreme environments. Its hardened enclosure protects against contaminants, vibration, and temperature fluctuations, ensuring consistent data transmission. The device's straightforward web-based management interface simplifies deployment, configuration, and ongoing maintenance, reducing operational costs and minimizing downtime.
| Specification | Details |
|---|---|
| Model Number | LES421A |
| Product Type | Hardened Serial Device server |
| Serial Port | 1 x RS-232/422/485 (auto-sensing) |
| Network Interface | 10/100 Ethernet (RJ-45) |
| Management | Web browser-based, HTTPS, SSH |
| Environmental Resistance | Dust, vibration, and temperature resistant |
| Power Supply | 12V DC (external power adapter) |
| Dimensions | 4.5" x 3.0" x 1.2" |
| Weight | Approx. 1.2 lbs |
| Operating Temperature | -40°C to 75°C (-40°F to 167°F) |
| Compliance | RoHS, FCC, UL Listed |

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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If you want to issue us Purchase Order/Check/Bank Transfer, Please contact us at the following details
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 LES421A 1-Port Hardened Serial Server
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