ACX710 device failed to boot up and there is no response from the console port.
the following are the steps to further narrow down the issue.
1. power feed source is functioning?
2. power cables are connected to the device correctly?
3. the same power source and power cables work well on other devices?
4. the console cable is known good one and working on another same module device?
after checking above all, create a JTAC case and JTAC engineer will help to determine if an RMA is required.