Serial remote I/O master module, remote I/O system is one master (D4-RM) and up to seven slaves (D4-RS) non-removable terminals,

SKU: D4RM; Manufacturer: Automation Direct

$390.00

Serial remote I/O slave unit (used with D4-RM), includes 110/220 VAC power supply, uses shielded twisted pair (24 AWG minimum)

SKU: D4RS; Manufacturer: Automation Direct

$449.00

Remote I/O slave unit (used with D4-RM), includes 24 VDC power supply, uses shielded twisted pair (24 AWG minimum)

SKU: D4RSDC; Manufacturer: Automation Direct

$439.00