A A E O N P a n e l P CA P C - 8 1 2 2APC-8122 Series User Manual V1.0282.9 COM2 RS-232/422/485 Select (JP4&JP5)JP4JP5Function1-2, 4-5, 7-8, 10-111-2RS-232 (Default)2-3, 5-6, 8-9, 11-123-4RS-4222-3, 5-6, 8-9, 11-125-6RS-4852.10 ATX Power simulate AT Power (JP6)JP6Function1-2 ONATX Power Simulate AT Power1-2 OFFATX Standard (Default)