You can communicate with the XBee directly via micro USB, thanks to FTDI USB-UART converter IC. It helps you to connect the Shield to PC via USB and configure the modules directly over XCTU application.
-Communication mode switch between USB and Serial
-RX-TX, Power ON/OFF, RSSI and User LEDs
-Ready-to-use 1-Wire Sensor interface(DS18B20 Ready not included)
-The XBee module can be reset from Raspberry Pi, also IO1 and IO2 pins of the module connected to Raspberry Pi IOs.( Please, check the pinout diagram for details)
-RTS, CTS and RSSI pins connected with both Raspberry Pi’s IOs and FTDI USB-UART converter IC.
-The mounting holes fit the Raspberry Pi Zero
-The board dimension is 65*31mm