Potter PCVS-2 Double Control Valve Supervisory SwitchThe Model PCVS is a weather proof and tamper resistant switch for monitoring the open position of fire sprinkler control valves of the wall and yard post indicator and butterfly types. Two SPDT (Form C) contacts are provided which will operate when the valve position is altered from an open state.

A single four-conductor unshielded cable may be used for both power and data communications

Three different enclosures are available

the device address is designated as a single hardware location (such as 1-1)

or green lenses through special order

Channel Selective (Class A) or Band Selective (Class B)

Ceiling Mount Strobe

NEMA 4X assembly

NEMA Type 4 housing

— 449 Surface mount box

The 6820 is an intelligent addressable fire alarm control panel that replaces the 5820XL

Simplex 4100-1248 is a 100W Amplifier Expansion NAC Module for use with Simplex 4100 Systems

The annunciators have an enclosure that can be surface or flush mounted