Class 2 Power Supply, 24 VDC Only, Up to 8 Modules Expanison, POINT Bus Backplane, 16 DI (Sink), 16 DO (Source), 2 Ethernet Port (DLR), Support Class 1, 3 Network Comms, 8 TCP Connections, 1.0MB Internal, 1GB SD Card Inbox
Expansion Relay Module,4 Single Pole Double Throw Relays, Connect up to three to one 1444-DYN04-01RA Dynamic Measurement Module.Requires 1444-TB-B Base and 1444-REL-RPC- connector set.