C3110 Series

ION Gigabit Ethernet Media Converter Module
1000Base-T to 1000Base-SX/LX

The ION C3110 is a media converter module that provides an interface between 1000Base-T ports and 1000Base-SX/LX ports, allowing users to integrate fiber optic cabling into 1000Base-T copper environments.

Operating at Layer 1, the physical layer, data is passed through the converter at line speed, making it ideal for applications where low latency is essential. The ION C3110 is a manageable device when installed in a managed ION chassis.

NDAA Compliant

C3110 Series Overview


  • Copper and Fiber Auto-Negotiation
  • Auto-MDI/MDIX on TP port
  • Transparent Link Pass Through
  • Remote Fault Detect
  • Loopback
  • Pause
  • Automatic Link Restoration
  • Field Upgradeable Firmware
  • Can be used in any ION Platform Chassis
  • Cost effective fiber deployment by pairing C3110 with lower cost 1000Base-T switches, offering the benefits of fiber without the high costs
  • Standards based, will link with any standard 1000Base-T and any standard 1000Base-SX or LX ports

Manageable Features

  • Report converter status to chassis management software:
    • Copper and Fiber link/receive status
    • Hardware switch settings
    • Receive error count
  • Write operation includes:
    • Write operation enable/disable
    • Power on/off device
    • Auto-Negotiation enable/disable
    • Remote Fiber Fault Detect
    • Link Pass Through enable/disable
    • Pause enable/disable
    • Symmetric Pause
    • Asymmetric TX Pause
    • Asymmetric RX Pause

Note: Manageable Features are available when used in an ION Platform chassis along with an ION Management Module.

C3110 Series Tech Specs


  • IEEE 802.3ab
  • IEEE 802.3z
  • IEEE 802.3 2000

Data Rate

  • 1000 Mbps, Layer 1


  • SW1: Remote Fiber Fault Detect
  • SW2: Pause (symmetric)
  • SW3: Pause (asymmetric)
  • SW4: Transparent ink Pass Through (Up=Enabled)
  • SW5: Fiber Auto-Negotiation (Down=Enabled)
  • SW6: Loopback


  • Hardware: Mode of operation is determined by the settings on the 4-position switch
  • Software: Mode of operation is determined by the most recently saved on-board microprocessor settings

Status LEDs

  • LKF (fiber link): On = Fiber Link, blinking activity
  • PWR (Power): On = Connection to powered backplane
  • TP LED 1 (Copper Link): On = Link, blinking activity
  • TP LED2 (Copper Duplex): On = Full-Duplex


  • Width: 0.86” [22 mm]
  • Depth: 6.5” [165 mm]
  • Height: 3.4” [86 mm]

Power Consumption

  • 3.6 Watts, 300mA @ 112 VDC


  • Environment specs are dependent on the chassis chosen
  • Operating: 0°C to 50°C
  • Humidity: 5% to 95% (non-condensing)
  • Altitude: 0 – 10,000 ft.


  • 1 lb. [0.45 kg]


  • Greater than 250,000 hours (MIL-HDBK-217F)
  • Greater than 667,500 hours (Bellcore)


  • CISPR/EN55022 Class A, FCC Class A, CE Mark, EN55024


  • Lifetime

C3110 Series Downloads

Additional Product Information

Note: Some Documentation may have Transition Networks named or pictured. Transition Networks was acquired by Lantronix in August 2021. Learn more about the acquisition here.

Visio Stencils

Plan your network with Microsoft Visio Stencils. You must log in or create a MyLantronix account to access Visio Stencils.

Firmware Downloads

Keep your products up to date by downloading the latest firmware. You must log in or create a MyLantronix account to download firmware. 

Lantronix Part # Name Description Order Now
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Lantronix Part #
C3110 Series

1000Base-T (RJ-45) [100 m/328 ft.] to 1000Base-SX 850nm multimode (SC) [62.5/125 μm fiber: 220 m/722 ft [50/125 μm fiber: 550 m/1804 ft.] Link Budget: 8.5 dB

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Lantronix Part #
C3110 Series

1000Base-T (RJ-45) [100 m/328 ft.] to 1000Base-SX 850nm multimode (LC) via SFP [62.5/125 μm fiber: 220 m/722 ft.] Link Budget: 8.0 dB [50/125 μm fiber: 550 m/1804 ft.] Link Budget: 8.0 dB

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Lantronix Part #
C3110 Series

1000Base-T (RJ-45) [100 m/328 ft.] to 1000Base-LX 1310nm single mode (SC) [10 km/6.2 mi.] Link Budget: 10.5 dB

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Lantronix Part #
C3110 Series

1000Base-T (RJ-45) [100 m/328 ft.] to 1000Base-X SFP Slot (empty)

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Compatible Accessories
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SFP Modules
SFP Modules
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