The CSIS-202A1 Supervised Signal Isolator Module is designed for fire alarm installations where an in-suite audible or visual notification device must be isolated without affecting notification appliances in other areas.

The module provides two supervised isolator outputs. If a connected bell, horn, or strobe develops a short or open circuit, the isolator removes the affected devices from the circuit while allowing the remaining notification appliances to continue operating. The fire alarm control panel can indicate a trouble condition for the affected suite.

The CSIS-202A1 mounts in a standard 4-inch square electrical box and includes a white front plate with an area for identifying the suite number. It operates from a regulated 24 FWR/24 VDC signal input and supports up to 400 mA maximum suite current per suite.

Key Features:

• Two supervised isolator outputs
• Operates with bells and horns
• Compatible with notification appliances including strobes
• Helps maintain notification circuit integrity
• Identifies short/open conditions on isolated suite signals
• 24 FWR/24 VDC signal input
• 400 mA maximum suite current
• Mounts in a standard 4-inch square electrical box
• White front plate
• ULC listed according to Mircom documentation