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Osmocom icE1usb - E1 interface for USB


Product number: icE1usb-kit
Product information "Osmocom icE1usb - E1 interface for USB"

The icE1usb is ab E1 adapter with a USB interface. It can be used to attach to circuit-switched primary-rate E1 circuits used in traditional/legacy telecom environments.

Today, E1 circuits can primarily be found in the context of cellular networks; whether to carry A-bis back-haul, Gb over Frame Relay, A over TDM interfaces or any classic circuit SS7 signaling.

Those few other E1 adapters available on the market are typically PCI / PCIe cards, which constrains their usage to larger servers with the appropriate slots. Contrary to that, icE1usb connects via USB to the computer, allowing for use cases like

  • E1 attached to a Laptop computer
  • E1 attached to embedded Single Board Computers like for example Beagleboard, Raspberry Pi, Intel NUC or any other platform with a USB host controller.

The icE1usb has two physical E1 ports.  However, the use of two simultaneous ports is border-line of what full-speed USB can physically do, and it only works in very specific constellations with very specific host controllers, software, etc.  So in general, we now advertise it as a single-port device.  If you can make the second port work for you: Great.  If not: You have been warned!

Open Source Hardware

 The icE1usb is 100% Open Source Hardware (OSHW). This includes

  • mechanical cad files
  • schematics, circuit board layout, bill of materials
  • Verilog/HDL sources for the gateware
  • C source code for the firmware running on the PicoRV32 softcore in the FPGA
  • C source code for the (Linux) drivers on the host computer

Further Information

Packing List

  • icE1usb USB E1 interface
  • USB-C to USB-A cable

NOTE: There is no GPS antenna included; any standard active GPS Antenna with male SMA connector and 3.3V bias voltage should work. sysmocom offers one here.

Community Discounts

Discounts available for the open source developer and hobbyist community.

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