C6120 Series - 4 x T1/E1/J1 + 10/100 Ethernet

4 x T1 E1 J1 + 10/100 Ethernet

The ION C6120 4xT1/E1/J1 copper to fibre network interface device (NID) provides a solution for those users that need to extend multiple T1/E1 connections and 10/100Mbps Ethernet over fibre. The ION 4xT1/E1/J1 supports Small Form Pluggable (SFP) transceivers to support a variety of fibre types, distances and wavelengths to provide maximum flexibility across a variety of network topologies. The use of Coarse Wave Division Multiplexing (CWDM) SFPs can be utilized to further increase the bandwidth capacity of the fibre infrastructure. The ION 4xT1/E1/J1 NID must be used in pairs. A typical installation will include a chassis card installed in the ION Platform locally and a standalone device installed at the remote location.

4 x T1 E1 J1 + 10/100 Ethernet schematic


  • 4 x RJ-48 copper interfaces, 1 fibre interface (fixed or SFP), 2 SFP ports on C6121-1040 model, 1 RJ-45 10/100Mbps Ethernet port
  • AutoCross (auto MDI/MDI-X on Ethernet port)
  • Pause (Flow Control) on Ethernet port)
  • Loopback via test set
  • Local and remote loopbacks
  • LEDs for device status and troubleshooting
  • Settings for line code, line build out, loopbacks and Alarm Indication Signal (AIS)
  • Access to complete status and configuration on local and remote device
  • Remote firmware upgrade
  • Remote management



  • ANSI T1.102, T1.403 and T1.408
  • ITU I.431, G.703,G.736, G.775 and G.823
  • ETSI 300-166, 300-233 and TBR 12/13
  • AT&T Pub 62411
  • IEEE 802.3™-2008

Switches: Numerous switch settings for line coding, line build out, loopback and AIS
Data Rate: Copper ports (RJ-48): T1(J1) = 1.544Mb/s, E1 = 2.048Mb/s, Ethernet port (RJ-45): 10/100Mbps, SFP port(s) (empty): 100BASE-X/OC-3
Status LEDs: Power, Port Status, Loopback and AIS
Dimensions: Width: 1.72” [44 mm], Depth: 6.5” [165 mm], Height: 3.4” [86 mm]
Power Consumption: 6W max for dual fibre model, 5.5W max for single fibre model
Safety Compliance: EN55022 Class A, EN55024, CE mark
Shipping Weight: 1 lbs. (0.45 kg)
Warranty: Lifetime

Live Demo of FRM220 Chassis

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