4xT1/E1/J1 + 10/100 Ethernet 1550 nm TX / 1310 nm RX single fiber single-mode (SC) [20 km/12.4 miles] to (4) (RJ48) [1.5 km/.9 miles] plus 10/100BASE-TX (RJ45) [100m]

MFR PART #  C6120-1029-A2
PART #  554515
Minimum 1 Each


The item has been discontinued by the manufacturer. Click here for the suggested replacement.


  • 4 x RJ48 copper interfaces, 1 fiber interface (fixed or SFP), 2 SFP ports on C6121-1040 model, 1 RJ45 10/100 Mbps Ethernet port

Specification Description

Switches: Numerous switch settings for line coding, line build out, loopback and AIS


Port 1 Device Technology T1
UNSPSC Code 43201553

Shipping and Fulfillment Policy

When you order products from, the order is processed within one to two business days. Orders received during non-business days are processed on the next business day.

You have several shipping options for parcel shipping: standard ground 5 to 7 business days, 2 to 3 business days, or next business day. orders ship to addresses within the United States. orders do not currently ship to addresses outside the United States or military/government APO/FPO locations. We are also not able to ship to Post Office Box addresses. If you wish to ship to an address outside the United States or a military/government location, please contact your local Anixter sales representative to discuss your options.

In addition, offers Less-Than-A-Truckload “LTL” option for products that cannot be shipped via parcel shipping. For products that will be shipped via LTL, you will be provided with a set of Accessorials to select from to provide Anixter with additional shipping considerations, such as residential delivery, inside delivery, liftgate or limited access.

  • Residential Delivery - A residential delivery charge applies to shipments to a home or private residence, including locations where a business is operated from a home, or to any shipment in which the shipper has designated the delivery address as a residence.
  • Inside Delivery - When requested, freight carrier unloads shipments from or to areas that are not next to the trailer, such as shopping malls or office buildings. An elevator must be available to provide service to floors above or below the trailer.
  • Liftgate - Freight carrier provides liftgate service, if needed, to load and unload a shipment when loading/unloading docks are not available.
  • Limited Access Locations - A limited access location is a site where pickup or delivery is restricted or limited.

Shipping charges are calculated based on the shipping option you select, and is prepaid by you at the time of shipment.