Aruba IAP 205H
Some Aruaba AP's such as IAP209H don't have the usual RJ45 console ports. Instead the official guide from Aruba is to purchase a serial cable AP-CBL-SER in order to interface with the 4pin header on the back of the AP. If you don't want to spend on additionl cables you could use a TTL adapter and a few dupoint cables/jumper wires to connect to the console port.
To connect you would need the following components
1x FT232RL USB to TTL 3.3/5v FTDI Serial adapter
3x Dupont cables
Connect to the 4 pin header as the diagram below. Make sure that the TTL adapter is set to use 3.3V not 5V.
Next make sure that the AP is powered with an adapter or best PoE to your router.
If you launch terminal you should be able to see the AP booting.
Further instructions of how to install your IAP can be found here: Aruba IAP-205H Access Point Installation Guide (hpe.com)
Thanks
