32-Channel IP Network Fire Alarm Interface with USB MP3 Player
32 Short-Circuit Inputs • 2U Rack Mount • USB MP3 Player • One-Key Alarm Cancel • WEB Management
T-7723B 32-CH WEB MGMT
Complete fire alarm integration for IP audio systems. The T-7723B is a 32-channel IP network fire alarm interface that connects conventional fire alarm panels to your T-7700 series audio system. With 32 short-circuit inputs, USB MP3 player for emergency messages, and web-based management, it provides reliable, programmable emergency notification.
| Model Number | T-7723B |
| Product Type | 32-Channel IP Network Fire Alarm Interface |
| Form Factor | 2U, 19" Rack Mount |
| Input Channels | 32 short-circuit inputs (dry contact) |
| Input Type | Opto-isolated, NO/COM |
| Input Voltage | 5-24V DC or dry contact |
| Network | 10/100Mbps Ethernet (RJ45) |
| Audio Protocols | TCP/IP, UDP, HTTP, RTP, RTSP |
| Media Playback | USB 2.0 (MP3/WAV) |
| Alarm Cancel | One-key front panel button |
| Management | Web-based configuration |
| Priority | Programmable per input |
| Power Supply | AC 100-240V, 50/60Hz, internal |
| Power Consumption | ≤ 20W |
| Dimensions (WxDxH) | 483 x 200 x 88 mm (2U) |
| Weight | 3.5 kg |
| Operating Temperature | 0°C – 40°C |
| Humidity | 10% – 90% non-condensing |
| Certifications | CE, FCC, RoHS |
Each of the 32 inputs can be individually programmed to trigger specific actions: play a message, activate zones, send notifications, or start a sequence. Inputs are opto-isolated for reliable operation in industrial environments.
The T-7723B is a professional 32-channel IP network fire alarm interface designed to connect conventional fire alarm panels to ITC T-7700 series IP audio systems. When a fire alarm triggers, the interface sends commands over the network to broadcast emergency messages, activate strobes, and notify security personnel.
32 Independent Inputs: Connect up to 32 zones from your fire alarm panel. Each input can be programmed with its own message, priority, and destination zones. Perfect for phased evacuation, floor-by-floor alerts, and area-specific warnings.
USB MP3 Player: The front-panel USB port allows you to store emergency messages directly on a USB drive. Pre-record "Evacuate", "Shelter in Place", and other alerts. Messages can be assigned to specific inputs.
One-Key Alarm Cancel: In an emergency, authorized personnel can silence alarms with a single button press on the front panel. Configurable to require password or key switch for security.
Web-Based Management: Configure all 32 inputs, assign messages, set priorities, and test the system through an intuitive web interface. No special software required – just a browser on your network.
Priority Override: Fire alarm inputs have the highest priority in the system, automatically overriding all other audio (background music, paging, etc.) to ensure emergency messages are heard.
2U Rack Mount: Standard 19" rack mount form factor fits neatly in equipment racks alongside other ITC components.
Connect up to 32 fire alarm zones. Programmable per input for zone-specific alerts.
Store emergency messages on USB drive. Play different messages for different zones.
Silence alarms quickly with front panel button. Configurable security options.
Configure and monitor from any browser. No proprietary software needed.
| Parameter | Specification |
|---|---|
| Number of Inputs | 32 (individually programmable) |
| Input Type | Opto-isolated, dry contact (NO/COM) |
| Input Voltage Range | 5-24V DC or contact closure |
| Isolation Voltage | 2500V RMS |
| Response Time | < 50ms |
| Debounce Time | 20ms – 500ms (configurable) |
32 zones
Independent control
| Action | Description |
|---|---|
| Play Message | Select MP3 file from USB (e.g., "Evacuate Floor 3") |
| Activate Zones | Choose which speaker zones receive the message |
| Priority Level | Set priority (1-10, 1 highest) to override other audio |
| Repeat Count | Number of times to repeat message (1-10, continuous) |
| Notification | Send email/SMS to security personnel |
| Trigger Output | Activate relay output for external strobe/siren |
Fully programmable
Per input
| Parameter | Specification |
|---|---|
| USB Version | USB 2.0, FAT32 |
| Supported Formats | MP3, WAV |
| File Organization | Files named by input number (e.g., 01.MP3 for input 1) |
| Maximum Files | 32 (one per input) |
| Bit Rate | 32-320 kbps |
USB storage
Easy message updates
One-key cancel
Emergency silence
Access the T-7723B through any web browser on your network. Configure all 32 inputs, upload messages, set priorities, view alarm logs, and test the system. Password protected with multiple user levels (admin, operator, viewer).
| Model | Inputs | Form Factor | USB MP3 | Web Mgmt |
|---|---|---|---|---|
| T-7723 | 16 | 1U | No | No |
| T-7723B | 32 | 2U | Yes | Yes |
Fire Alarm Panel (Zone 1-32) → T-7723B → Network Switch → T-7700 Server → Zone Amplifiers/Speakers
Example: Fire alarm zone 3 triggers → T-7723B plays "Evacuate Floor 3" from USB → message broadcast to all speakers on floor 3. Other floors receive different messages or remain in background music mode.
The T-7723B is designed for use in fire alarm systems but must be installed in accordance with local codes and standards. Regular testing is required. Always consult with a licensed fire alarm contractor for system design and approval.
Input 1: Zone 1 message "Fire on Floor 1" – priority 1 – zones 1,2,3 – repeat 3 times – email security. Input 2: "Fire on Floor 2" – zones 4,5,6 – etc. All configurable via web interface with no programming required.
T-7723B in server room, connected to fire panel and network
Fire alarm zones 1-8 connected to T-7723B inputs. USB drive contains pre-recorded evacuation messages for each floor. When alarm triggers, appropriate message plays through ceiling speakers. Security receives email alert. Front panel alarm cancel allows authorized silencing.