A console cable provides terminal access to Raspberry Pi from say a laptop host without requiring to connect a monitor to Pi's HDMI port. So when the Pi is moved to a new network we can still be able to ssh to its console via the UART cable and find the new ip address.
Please see the steps in this page for setting up console cable for Raspberry Pi.
Overview | Adafruit's Raspberry Pi Lesson 5. Using a Console Cable | Adafruit Learning System
Please see the steps in this page for setting up console cable for Raspberry Pi.
Overview | Adafruit's Raspberry Pi Lesson 5. Using a Console Cable | Adafruit Learning System