Provides 8 additional input points and 8 additional output relays to the BRIVO® ACS6100 series control panels. Each input point can be programmed for input line supervision and for normally open or normally closed inputs. Outputs are form C (SPDT) relays. ACS6100-I/O expansion boards must be connected to an ACS6100-E, ACS6100-W/G, or ACS6100-S control panel to operate properly. BRIVO® ACS6100 series control panels support any combination of ACS6100-I/O and ACS6100-DB expansion boards up to a maximum of 14 expansion boards per ACS6000 series control panel and are connected via high speed CAN bus. To maintain UL294 compliance, the ACS6100-IO must be installed and powered by an ACS6100 series chassis.