Advantech ADAM-4542+-BE RS485 I/O Module, Fiber Optic to RS-232/422/485 Converter, Single Mode, 10-30VDC, 1 x SC Fiber Connector, 1 x 10-pin Plug-in Screw Terminal, ADAM-4000 Series $626.90 Select
Advantech ADAM-39100-BE Universal 100-pin DIN Rail SCSI Wiring Board with 1 x 100-pin SCSI Female Connector, 1 x 100-pin Screw Terminal $114.01 Select
Advantech ADAM-6520-BE Ethernet Switch, 5-Port, 10/100Mbps Unmanaged, Flexible Mounting, 10-30VDC, -10° to 70°C, IP30, 70 x 112 x 27mm (WHD) $112.35 Select