Bosch D9127T

The Bosch D9127T is a POPIT input module with tamper supervision that expands addressable fire alarm systems beyond standard on-board initiating zone capacity. Each module functions as an intelligent interface point on the addressable loop, providing individual point identification and wiring circuit integrity supervision for connected initiating devices.

Key Features

• POPIT addressable loop module with integrated tamper switch supervision
• Point-to-point identification of initiating devices for accurate alarm pinpointing
• Paired with D8125 Addressable Expansion Module to extend system zone capacity
• Compact form factor installs in standard outlet boxes, above false ceilings, or accessible locations
• Supervised wiring with integral magnetic tamper switch detection

Technical Specifications

• Operating Voltage: 12 VDC nominal
• Current Draw: 0.8 mA maximum
• Response Time: Approximately 1 second
• Maximum resistance increase on POPIT loop: 1000 Ω
• Maximum resistance D8125 to module: 90 Ω
• Sensor loop maximum resistance: 100 Ω
• End-of-line resistor required: 33 kΩ at farthest point on loop
• UL Listed fire-resistant construction

Certifications

• UL Listed for fire alarm addressable point identification