mPCIe WWAN modem USB breakout board¶

This is a small break-out board for miniPCIe (mPCIe) type cellular / WWAN modems.

It allows you to insert a mPCIe modem from any vendor, and it will provide you with:

• mini USB socket for connection to a USB Host (like your PC/Laptop or Embedded System)
• 5V DC input for power supply (USB supply usually insufficient for a modem)
• all unused mPCIe pins on a 2.54mm break-out header
• SIM card slot for a 2FF-sized SIM, USIM or RUIM card

Particularly the break-out header is useful to get access to various signals exported in a non-standard fashion by some modem models, such as digital audio PCM.

Schematics¶

Layout / Component Placement¶

Where to buy¶

If you would like to buy a fully-assembled version of this board, you can order it from http://shop.sysmocom.de/products/minipcie-wwan-modem-usb-break-out-board