Triac surge protection kit for the Triac outputs
EC-BOS-8 – Add-on dual port RS-485 module. Complies with UL 864, UUKL Smoke Control Listing.
Modular repeater for electrical isolation and range increase in RS-485 2-wire bus systems up to 500 kbps, 4-way isolation, rail-mountable, supply 24V DC by Phoenix Contact.
ISOBAR 12 Ultra Surge Suppressor by Tripp Lite
12-Outlet Isobar Rackmount Surge Protector with 15-ft Cord and All-Metal Housing
Ethernet Interconnect switch with eight-port 10BASE-T/100BASE-TX switching hub (for twisted-pair copper cabling)