DH9361/BG Fiber Optic Fire Telephone Host Unit / Fire-Certified Utility Tunnel Fiber Optic Telephone Host and Extension Units / Networked Fire Telephone Host Unit / Smart-Connected Fire Telephone Host Unit

DH9361/BGFiber Optic Fire Telephone Host/Fire CertificationUtility TunnelFiber Optic Telephone Host and Extension/Networked Fire Telephone Host/Smart Fire Telephone Host

I. Overview:

1) Application Scope: Communication between the control room and the field during emergencies, as well as special application scenarios such as firefighting command and evacuation rescue; urban utility tunnels, subways, tunnels, ports, and other occasions requiring long-distance communication.

2) This device can be used independently or networked via fiber optics with the DH9361 panel-mounted fire telephone host using the KT9301 series optical transceivers, or directly with the same model DH9361/BG wall-mounted host, enabling functions such as calling/conversation between the main control room and regional control rooms or various regional extensions.

a. System networking equipment includes: DH9361/BG fire telephone host, DH9361 fire telephone host, KT9301 series audio data optical transceivers, DH9272 series fire telephone extensions, DH9273(A) series fire telephone jacks, and other components;

Optional components include: DH9277 bus surge protector, DH9279 bus isolator, KT9302 information editing adapter, etc.

b. When the system is networked, the telephone host can be set via menu as "system main unit" or "regional host";

c. When the system is networked, it can include up to 17 fire telephone hosts and 1683 telephone extension components;

d. The regional host can be set via menu to "no transfer," "automatic transfer," or "delayed transfer." When an extension in this region calls in and the host fails to answer promptly, it can transfer to the system main unit according to the preset method;

e. When the system is networked, the fiber optic transmission distance can exceed 25km (single-mode single-fiber);

3) This device adopts our company's two-wire technology, enabling power supply, communication, and voice signals to be transmitted in parallel over two wires. Polarity does not need to be considered during wiring, facilitating installation and debugging.

4) This device can mutually call and conduct full-duplex conversations with extensions within its region. The host can communicate with up to 5 extensions simultaneously. When used as the "system main unit," the system main unit can mutually call and conduct full-duplex conversations with regional hosts or extensions, and can communicate with up to 5 hosts or extensions.

5) This device features extension location remark information functionality, which can be input via keyboard or written via computer using a dedicated tool (KT9302 information editing adapter).

6) This device has comprehensive detection measures, enabling real-time monitoring of bus status and extension status. It can issue audible and visual alarms when line open or short-circuit faults occur or when an extension "drops offline." It automatically recovers after the fault is resolved.

7) This device employs full digital control, with each functional unit using ARM centralized control combined with software and hardware technology, enabling it to adapt to various complex environments. It uses silicone keys for control, providing a good tactile feel.

8) This device can record and display call and response times, and can query and display no less than 1000 time records. The system main unit can query time records saved by regional hosts via menu operations.

9) This device uses digital recording technology, which is reliable and long-lasting, with automatic call recording. The recording time for a single device is no less than 120 minutes.

10) This device has a self-test function, enabling detection of display and audio components.

11) Compliance Standard: "Fire Linkage Control System GB 16806-2006" and Amendment No. 1.

II. Main Technical Specifications:

1) Power Supply: Main power: 220V (+10%, -15%, 50Hz±1%)

Backup power: DC24V battery (recommended: 12V/4Ah*2 cells)

2) Voice Frequency Response: 300～3400Hz (±3dB)

3) Transmission Loss: ≤5dB

4) Line Conditions: Extension terminal voltage not less than 18V

Cable: Shielded or twisted pair cable should be used, with a cross-sectional area of at least 1.5 mm². If the wiring length exceeds 1 km, the cable diameter should be appropriately increased. If shielded cable is used, the shield layer should be grounded at one end.

Insulation resistance between lines ≥ 20kΩ Capacitance between lines ≤0.7μF

5) Bus Length: ≤1200 meters

6) Recording Time: Greater than 120 minutes

7) Clock Error: <6s/day

8) Operating Environment: Temperature 0～40℃, relative humidity less than 95%.

All products have complete fire certifications, welcome to inquire by phone. www.szhsj119.com

Shenzhen Hongsheng High-Tech Electronics Co., Ltd.

Contact: Chen Cheng (Mr.)

Phone: 【 15889370119 】(same number for WeChat)