-16 channels for 24 V d.c. inputs with current sinking
-2 isolated groups of 8 channels with voltage supervision
-Input status indicators
-Sequence of event (SOE) functionality
-Shutter filter
-A rotary switch for cluster address setting
-Mechanical keying prevents insertion of wrong module type
-Single ModuleBus connection
-Latching device to DIN rail for locking and grounding
-DIN rail mounted
PU515A Real-Time Accelerator (RTA) board for PCI bus. (3BSE032401R1 ) Used in newer Advant HP workstations that have PCI slots. Used for Master systems and MOD 300 systems with eDCN.