100 VA 120/24 VAC power supply, 10Amp circuit breaker
$197.06
EC-BOS-8 – Add-on dual port RS-485 module. Complies with UL 864, UUKL Smoke Control Listing.
Communication surge protection kit for MS/TP bus and subnetwork bus communication lines.
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.