Kidde | Analog Addressable Dual Input Module, UIO Mount, Class B Circuit | GSA-MCT2

The GSA-MCT2 puts two monitored initiating device circuit (IDC) inputs on a single addressable module that plugs directly into a Kidde UIO base. It saves an electrical box and wiring run compared to a box-mounted module for every pair of IDC circuits on the job.

Built for the commercial fire alarm installer

Each input accepts normally open dry contact initiating devices and can be configured for alarm, supervisory, or monitor operation via the front-panel slide switch. Rotary switches set the device address - the module uses two consecutive SLC addresses, with the second assigned automatically. Ground fault detection at the module pinpoints wiring problems without walking the loop, cutting troubleshooting time on service calls.

Key features

• Two IDC inputs on one addressable module - halves the module count on dual-zone doors, ducts, or pull station circuits
• UIO mount plugs directly into the detector base - no separate electrical box or backplate needed
• Rotary-addressed with ground fault detection at the module for fast troubleshooting
• Configurable per-input operation - alarm, supervisory, or monitor via front slide switch
• Class B circuit operation with 47 kΩ EOL supervision
• Bicolor LED status indicator - flashing green (normal), flashing red (active)

System requirements

Requires a Kidde intelligent fire alarm control panel (FX Series or compatible) with an available SLC loop. The UIO mount requires a compatible Kidde detector base. Wire in accordance with NFPA 72 and CAN/ULC-S524.