Media Converters
Lantronix C6120 Series ION T1/E1/J1 over Fiber Multiplexer Modules
The ION C6120 is a managed T1/E1/J1 multiplexing media converter card that carries four DS1 circuits and a 10/100 Ethernet connection over a single fiber link, installed in an ION chassis and paired with a remote unit.
From $789.68
Overview
About the Lantronix C6120 Series
The C6120 (often listed as ION C6120) extends legacy TDM services and Ethernet together over fiber. It combines four RJ-48 T1, E1 or J1 ports and one 10/100 Ethernet port onto one fiber interface, so a site that still depends on DS1 circuits can share fiber with an Ethernet link instead of running separate copper. Converters must be used in pairs: typically a C6120 card in a managed ION chassis links over fiber to a stand-alone S6120 at the remote location.
The RJ-48 ports run T1 and J1 at 1.544 Mb/s or E1 at 2.048 Mb/s over copper runs up to 1.5 km, and comply with ANSI T1.102, T1.403, ITU G.703, G.823, ETSI 300-166 and AT&T Pub 62411 among other standards. Switch settings control line code, line build-out, loopbacks and Alarm Indication Signal (AIS). Local and remote loopbacks, plus loopback via test set, support circuit testing. The fiber side is a fixed single-mode SC port or an SFP slot that accepts 100Base-X/OC-3 modules, including CWDM SFPs.
Through an ION Management Module in the chassis, administrators get complete status and configuration of both the local card and the remote unit, plus remote firmware upgrades. LEDs show power, port status, loopback and AIS for on-site troubleshooting, and each card draws 5.5 W maximum in single-fiber form from the chassis.
Key capabilities
- Four DS1 plus Ethernet
- Each card multiplexes four T1/E1/J1 circuits on RJ-48 ports and one 10/100 Ethernet port onto a single fiber connection.
- Works in matched pairs
- A C6120 card in a managed ION chassis links to a stand-alone S6120 at the remote site, keeping the chassis end centrally managed.
- Built-in circuit testing
- Local and remote loopbacks, loopback via test set and AIS settings let technicians isolate T1/E1 faults without visiting both ends.
- 20 km single-mode or SFP
- C6120-1014 reaches 20 km on 1310 nm single-mode SC fiber; C6120-1040 takes 100Base-X/OC-3 SFPs, including CWDM optics.
- Remote management
- Status and configuration of local and remote units, plus remote firmware upgrades, are available from the ION management platform.
- 687,500-hour MTBF
- Lantronix rates the C6120 at 687,500 hours MTBF (Bellcore), with maximum power draw of 5.5 W for single-fiber models.
How to choose the right C6120 Series part number
Both C6120 cards provide four RJ-48 T1/E1/J1 ports and one 10/100Base-TX RJ-45 port; they differ only in the fiber interface. C6120-1014 has a fixed 1310 nm single-mode SC port reaching 20 km with a 16.0 dB link budget. C6120-1040 has an empty SFP slot for 100Base-X/OC-3 modules, so fiber type, distance and wavelength come from the SFP, and CWDM SFPs can add capacity to existing fiber. Each link also needs a remote unit, typically a stand-alone S6120.
Configure & order
Find your C6120 Series part number
Every orderable C6120 Series configuration, filtered by the specs that actually differ between them. Pick what you need on the left and the matching part numbers appear here.
C6120-1014
$973.53
Ships on backorder
Where the C6120 Series is used
- Extending T1 or E1 circuits to remote buildings over fiber
- Carrying DS1 voice circuits and Ethernet on one fiber
- Migrating copper T1 runs to single-mode fiber
- Utility and campus networks with legacy TDM equipment
C6120 Series FAQ
Does the C6120 need to be used in pairs?
Yes. Lantronix states the C6120 must be used in pairs. A typical installation has a C6120 card in a managed ION chassis linked over fiber to a stand-alone S6120 at the remote location.
Does the C6120 support E1 and J1 as well as T1?
Yes. The four RJ-48 ports support T1 and J1 at 1.544 Mb/s and E1 at 2.048 Mb/s, with switch settings for line code, line build-out, loopbacks and Alarm Indication Signal.
How far can the C6120 extend T1/E1 over fiber?
The C6120-1014 reaches 20 km over 1310 nm single-mode fiber with SC connectors and a 16.0 dB link budget. The C6120-1040 distance depends on the SFP installed. RJ-48 copper runs to the T1/E1 equipment can be up to 1.5 km.
Can CWDM SFPs be used with the C6120?
Yes. The C6120-1040 SFP slot supports 100Base-X/OC-3 modules, and Lantronix notes that CWDM SFPs can be used to further increase the bandwidth capacity of existing fiber infrastructure.
