10/100 Ethernet module gives 48 digital I/O

The 48-channel model ETH-DIO-48 industrial strength digital I/O module is controlled by a single 10/100 Ethernet port. The 4.00 x 4.00 x 1.7 inch unit is excellent for sensing inputs such as switch closures, LVTTL, or CMOS logic, and for driving relays, solenoids, indicator lights, etc.

Each I/O line can be programmed as an input or output. I/Os can source 32 mA or sink 64 mA and have jumper selection for pull-up (to +5 VDC), pull-down, or floating. They use standard 50-pin IDC-type shrouded connectors. The unit price is $279, a 24-line model is available for only $179, and board only OEM models are also available.