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Compact metal box with two serial ports and network jack

Black Box Corporation

Black Box LES400 Industrial RS232/422/485 Serial Device Server 2-Port LES422AR2

SKU CH-BN9H-MQQHQ

Connects two RS232, RS422 or RS485 serial devices to an Ethernet network for remote access and management

  • Two serial ports connect legacy equipment
  • RS232, RS422 and RS485 interfaces supported
  • Industrial design suits harsh environments
  • Black Box LES400 series reliability

Two-Port Industrial Serial Device Server

The Black Box LES400 series unit connects two RS232, RS422 or RS485 serial devices to an Ethernet network. It suits factories or remote sites that need to monitor or control legacy equipment from a central location.

Serial Interface Constraints

The server handles only the three serial standards listed and provides two ports. Buyers needing more than two connections or a different physical interface will require additional hardware.

How it compares

Measured against everything we stock in Serial & USB Device Servers, at today’s prices. Recalculated every night.

Price $462.99
Pricier than about 60% of the 168 comparable items (median $335.99).

Specifications

Product
Brand nameBlack Box Innovations

Questions about this item

What is the difference between the RS-232, RS-422 and RS-485 modes on this LES400 unit?

The server supports all three serial standards on its two ports, letting you match the electrical interface your legacy equipment requires without extra converters.

How does the dual-port design help when I connect it to my industrial network?

Two independent serial ports let you serve two separate devices through one Ethernet drop, reducing cabling and switch ports in cabinet installations.

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