10 Gigabit Ethernet Media Converter


Stand-alone 10 Gigabit Ethernet Media Converter 10GBase-
  • Stand-alone media converter that converts between 10GBase-T  and 10GBase-X
  • The open SFP+ slot supports a wide variety of 10GE SFP+ fibre modules.
  • Operates at Layer 1,  data is passed through the converter at line speed
  • Extremely low latency
  • In-band management






The S4120 is a media converter module that provides an interface between 10GBase-T ports and 10GBase-X ports via an open SFP+ port.  It provides conversion between 10Gig Ethernet ports and various fibre infrastructures. The open SFP+ port supports a wide variety of Transition Networks 10GE SFP+ fibre modules. Operating at Layer 1, the physical layer, data is passed through the converter at line speed, making the C4120 ideal for applications where low latency is essential. The ION C4120 is a manageable device when installed in a managed ION chassis.  A rackmount version is also available forhigh density or multi-service scenarios.

The SFP port offers support for:

  • 10G copper SFP's
  • Class-I and Class-II fibre
  • SFP+ modules
  • CWDM and DWDM modules


Spec Text

IEEE 802.3
IEEE 802.3an
IEEE 802.3ae
IEEE 802.3az

Data Rate

10 Gbps

Dip Switches

SW1: Copper Loopback
SW2: Fibre Loopback
SW3: not used
SW4: Transparent Link Pass Through

Status LEDs

Copper Link : ON
Copper Act: ON


Width: 3.25” [82.55 mm]
Depth: 6.5” [165 mm]
Height: 1" [25.4 mm]

Power Consumption

10.5 Watts

Power Supply

External AC/DC power supply, Universal AC input,
12VDC 1.6A output


Operating: 0°C to 50°C
Storage: -15°C to 65°C
Humidity: 5% to 95%
Altitude: 0 – 10,000 ft.


With Power Supply:
Greater than 41,660 hours (MIL-HDBK-217F)
Greater than 114,580 hours (Bellcore)
Without Power Supply:
Greater than 250,000 hours (MIL-HDBK-217F)
Greater than 687,000 hours (Bellcore)


FCC Class A, EN55022 Class A, EN55024, CE Mark



Ordering Information

Order Code Description
TN-S4120-1048 10GBase-T RJ-45 100m to 10GBase-X SFP+ Slot

More Information