Port mounted fiber optic fire telephone host with stable performance and complete certification

Description :

　　1. Overview:

　　1) Application scope: In case of emergency, communication between the control room and the site, as well as firefighting command and evacuation rescue, etc

　　Special application scenarios; Places such as urban pipe galleries, subways, tunnels, ports, etc. that require long communication distances.

　　2) This device can be used independently or with the same model of equipment through our company's KT9301 series optical transceiver for fiber optic communication

　　Networking enables calling/communication between the main control room and regional control rooms or between regional extensions.

　　a、 The system networking devices include: DH9361 fire telephone host, KT9301 series audio data optical transceiver, DH9272 series

　　Fire telephone extension, DH9273 (A) series fire telephone jack and other components;

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

　　b、 When the system is connected to the internet, the telephone host can be set as "system switchboard" or "regional host" through the menu;

　　c、 When used for system networking, it can include 17 fire telephone hosts and 1683 telephone extension components;

　　d、 The regional host can be set to "no transfer", "automatic transfer", "delayed transfer" and other methods through the menu

　　When a domain extension calls in and the local machine fails to answer in a timely manner, it can be transferred to the system switchboard according to the predetermined method;

　　e、 When used in system networking, the fiber optic transmission distance can reach over 25km (single-mode single fiber);

　　3) This device adopts our company's pioneering dual bus technology, which enables power supply, communication, and voice signals to be connected on two lines

　　Transmission and wiring are not polarized, making it convenient for construction and debugging.

　　4) This device can make mutual calls and perform full duplex communication with extensions in this area, and the host can simultaneously communicate with 5 different machines

　　Conduct communication; When used as a "system switchboard", the system switchboard can call each other between the regional hosts or regional extensions

　　Call and conduct full duplex communication, capable of communicating with 5 hosts or extensions.

　　5) This device has the function of commenting on extension location information, which can be entered through the keyboard or using a dedicated tool (KT9302 information)

　　Edit adapter) is written through a computer.

　　6) This device has very comprehensive detection measures, which can monitor the bus status and unit status in real time. When there is an open circuit in the circuit

　　When there is a short circuit fault or the unit is disconnected, it can emit sound and light alarm prompts. After troubleshooting, it can be automatically restored.

　　7) This device adopts full digital control, with ARM centralized control for each functional unit, combined with software and hardware anti-interference technology,

　　So it can adapt to various complex environmental applications. Using silicone keys for control, it feels good to the touch.

　　8) This device has the function of recording and displaying call and response time; And it can query and display no less than 1000 time records;

　　The system switchboard can query the time records saved by each regional host through menu operations.

　　9) This device adopts advanced digital recording technology, which is reliable, has a long lifespan, and automatically records calls; Single device recording time

　　Not less than 120 minutes.

　　10) This device has a self checking function and can detect display and sound emitting devices.

　　11) Execution standard: "Fire linkage control system GB 16806-2006" and Amendment No.1.

　　2、 Main technical indicators:

　　1) Power supply: DC24V ± 10% Current: ≤ 1A

　　2) Voice response: 300-3400Hz (± 3dB)

　　3) Transmission attenuation: ≤ 5dB

　　4) Line condition: The voltage at the extension end shall not be less than 18V

　　Wire: Shielded wire or twisted pair should be used, with a wire diameter of 1.5 square millimeters or more. If the wiring length exceeds 1

　　Kilometers, the diameter of the line should be appropriately thickened; If shielded wire is used, one end of the shielding layer should be grounded.

　　Inter line insulation resistance ≥ 20k Ω Inter line capacitance ≤ 0.7 μ F

　　5) Bus length: ≤ 1200 meters

　　6) Recording time: greater than 120 minutes

　　7) Clock error:<6s/day

　　8) Working environment: Temperature range of 0-40 ℃, relative humidity less than 95%.

AfterSalesService :

• Port mounted fiber optic fire telephone master