Lantronix C6310-3340 Chassis Card ION POTS Media Converter

Lantronix C6310-3340 Chassis Card ION POTS Media Converter

SKU: C6310-3340 Category:

The ION C6310-3340 is a chassis-based media converter module that provides an interface between a twisted pair RJ-11 port and a fiber port, allowing users to connect central-office voice grade signals to distant Plain Old Telephone equipment (POTS) utilizing standard telephone signaling. Two units are required to implement an end to end system. The first unit connects to a telephone line or PBX and is configured to act as a telephone (FXO Mode) and has the ability to detect ringing voltages. The second unit is the reciprocal unit and is configured to have the ability to act as a Central Office and connects to a telephone device (FXS Mode).

Together, the modules allow legacy analog phone lines to be extended over fiber for both permanent installations as well as temporary job-site installations.

Lantronix C6310-3340 Chassis Card ION POTS Media Converter

In stock



  • Audio transmission of voice grade signals
  • Supports ringing at distant end
  • Supports Caller ID
  • Configurable worldwide country formats
  • Must be deployed in pairs
    – ION chassis card and stand-alone unit
    – ION chassis card and ION chassis card
    – Stand-alone unit and stand-alone unit
  • Single product configurable to either FXO mode or FXS mode
  • Automatic Ring Down supported when both converters are configured to FXS Mode
  • SFP based product
    – Uses Gigabit Ethernet SFP Modules
    – Lantronix offers a wide variety of SFP modules to support multimode or singlemode fiber, as well as dual or single strand fiber installations
  • SNMP Management supported when installed in a managed ION chassis
  • Supports remote management of paired unit, in-band, over the fiber
  • Electrical interface is provided through an RJ-11 female connector
  • Field upgradeable firmware
  • Only supports analog POTS lines
  • Compatible with traditional telephone modems


  • Provides voice grade service to extend useful life of legacy analog telecom equipment
  • Acts as a telephone and connects to a telephone line or PBX
  • Acts as a central office and connects to a telephone device
  • For use in permanent or temporary job-site installations


  • FCC Part 68
  • ETSI ES 203-021 (TBR21)
  • ISED CS-03

Analog Port

  • Connector: RJ11

FXS Mode

  • Impedance: 600 ohms
  • REN: 1.0
  • Ring Cadence: 25 Hz

FXO Mode

  • Impedance: 600 ohms
  • Battery Source: 48 VDC +/- 5V
  • Ringing Supply: 90Vp-p
  • Ring Frequency: 16-65 Hz

Dip Switches

  • SW1 Up = FXO Down = FXS
  • SW2 Up = Normal Down = FXS Reversed
  • SW3 Up = U-Law Down = A-Law
  • SW4 not used
  • SW5 – SW8 Country Code Select

Status LEDs

  • Pwr: On = power is on
  • FL: On = fiber link is up
  • ACTC: On = Off-Hook, Blink = Ringing, Off = On-Hook


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

Power Consumption

  • 2.0 Watts without the SFP


  •  Operating: 0°C to 50°C
  • Storage: -40°C to +85°C
  • Humidity: 5% to 95% (non-condensing)
  • Altitude: 0 – 10,000 ft.


  • 1 lb. [0.45 kg]


  • Emissions: EN55032 Class A, FCC Part 15 Class A
  • Immunity: EN55024
  • Safety: CE Mark


  • Lifetime