Managed Rack Mount Industrial Layer 2 Switch​

Industrial Ethernet Switches - 12+12 Ethernet Fiber Switch
Front View

The RLH Industrial Managed Ethernet Switch offers 12 x 10/100 Mbps RJ-45 ports together with 12 x 100BaseFX fiber ports and supports a wide operating temperature range. The optical ports may be dual fiber singlemode or multimode, or bidirectional single fiber, and can extend Ethernet over Fiber up to 120Km/74 miles. The high fiber port count makes this a great switch for aggregating remote locations.

The switch supports web based management as well as support for IEEE802.1Q VLANs, broadcast storm control, port based traffic shaping, QOS, along with many other features.

The RLH Managed Ethernet Switch uses only 1RU of rack space and comes complete with EIA19” rack ears for rack mount applications, or it may be used on a desktop or shelf. The fiber optic ports allow for Ethernet network extension over long distances, and fiber optic cable provides electrical isolation between devices. Our industrial switches robust features and construction meet the demands of a variety of applications, and are an ideal solution for a wide range of utility and automation environments.


  • Hardened design has a wide operating temperature range -40°F to 167°F (-40°C to 75°C)
  • No fan, low power consumption design
  • 12 x 10/100 Mbps ports
  • 12 x 100BaseFX fiber ports
  • Supports 8K MAC addressing
  • Available with ST or SC connectors
  • Auto MDI/MDI-X & auto-negotiating
  • Managed through the web interface
  • Supports 802.1Q VLANs
  • Supports port trunking, port mirroring, port priority, IEEE 802.1p priority
  • Built-in power supply, 115/220VAC
  • Supports Ring technology
  • Supports Rapid Spanning Tree Protocol
  • Available in Single or Multimode fiber, up to 74mi /120km fiber range
  • EIA 19″ rack mountable, 1RU rack height

Powder coated IP30 steel housing

Ethernet Ports:
(12) 10/100 Mbps

Ethernet Interface:
Auto MDI/MDI-X, Auto Negotiation

Fiber Ports:
(12) 100BaseFX, ST or SC Connectors

Fiber Wavelength:
Multimode: 1310nm
Singlemode: 1310nm, 1550nm
Other wavelengths available by request

Layer 2 – See User Guide for Complete management details

Mounting Style:
EIA 19″ rack mountable, 1RU rack height

W 17.4” x D 8.” x H 1.75” / 441.6mm x 206.9mm x 44.6mm

Operating Temperature:
-40°F to 158°F (-40°C to 70°C)

Powering Requirement:
115/220VAC, 50/60Hz, 35W

General Information Miscellaneous
12+12 Ethernet Fiber Switch Dimensions
12+12 Ethernet Fiber Switch Dimensions


Lead Time: 3 to 4 Weeks*

For product questions, volume pricing and/or delivery outside of the US and Canada, please contact sales.


12+12 Ethernet Fiber Switch

Product configurationModeConnectorDistanceWavelengthPart numberPrice
Rack Mount, 8 Fiber Ports - Multimode, ST, 2km/1.2 miles, 1310nm, AC Power InputMultimodeST2km/1.2 miles1310nmRLH-ESM1212-04-2$2,800.00
Rack Mount, 8 Fiber Ports - Multimode, SC, 2km/1.2 miles, 1310nm, AC Power InputMultimodeSC2km/1.2 miles1310nmRLH-ESM1212-03-2$2,800.00
Rack Mount, 8 Fiber Ports - Singlemode, ST, 20km/12.4 miles, 1310nm, AC Power InputSinglemodeST20km/12.4 miles1310nmRLH-ESM1212-50-2$3,280.00
Rack Mount, 8 Fiber Ports - Singlemode, SC, 20km/12.4 miles, 1310nm, AC Power InputSinglemodeSC20km/12.4 miles1310nmRLH-ESM1212-40-2$3,280.00

*Lead times are estimates and may vary. You will be contacted within 1 business day to go over the details of your order. If you require a specific date, let us know!
*Days = Business Days

WarningWarning: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to