EC-BOS-8 – Add-on dual port RS-485 module. Complies with UL 864, UUKL Smoke Control Listing.
$717.75
Input/Output surge protection kit for universal input and output connections. Not to be used with supervised input kits.
Triac surge protection kit for the Triac outputs
ISOBAR 8 Ultra Surge Suppressor by Tripp Lite 8-Outlet Premium Isobar Surge Protector with 12-ft Cord and All-Metal Housing
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.