Integration — mounting and clearance
Mounts on a standard 35 mm DIN rail. Width 35 mm leaves room for up to 4 additional communication modules (CMs/CPs) in the right-side expansion slot. The hardware clock is battery-backed; replace the backup cell before the first maintenance cycle. ERROR and MAINT LEDs visible from the front panel; no separate power supply needed — draws from the backplane bus via the CPU slot.
