1‑Channel, Isolated Current (20 mA) Analog Output Module for SCC—The SCC‑CO is referenced to its own isolated ground, so it can tolerate up to 300 V of common‑mode voltage between grounds (channel‑to‑channel or channel‑to‑chassis). The SCC‑CO is installation rated for Category II, and it provides safety‑working isolation of 300 V per module. Because the SCC‑CO is isolated, you can cascade two SCC‑CO modules to double the output range. There is a maximum of two SCC‑CO modules per carrier.