Fiber optic telephone, fiber optic emergency telephone main unit, fiber optic emergency telephone auxiliary unit

Description :

　　1. Overview:

　　1) Application scope: In case of emergency, communication between the control room and the site, as well as special applications such as firefighting command and evacuation rescue; Places such as urban pipe galleries, subways, tunnels, ports, etc. that require long communication distances.

　　2) This device can be used independently, or connected to the DH9361 disk mounted fire telephone host through the KT9301 series optical transceiver for fiber optic networking, or directly connected to the DH9361/BG wall mounted host of the same model for fiber optic networking, to achieve functions such as calling/communication between the main control room and the regional control room or various regional extensions.

　　a、 The system networking equipment includes: DH9361/BG fire telephone host, 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 the system is connected to the internet, it can contain up to 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 the local extension calls in and the local machine fails to answer in time, 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 the two bus technology pioneered by Kaituo Company, which enables parallel transmission of power supply, communication, and voice signals on two lines without polarity during wiring, making it convenient for construction and debugging.

　　4) This device can make mutual calls and perform full duplex communication with the extension units in this area, and the host can communicate with 5 different units simultaneously; When used as a "system switchboard", the system switchboard can make mutual calls and perform full duplex communication with each regional host or extension, and can communicate with up to 5 hosts or extensions.

　　5) This device has the function of annotating extension location information, which can be entered through a keyboard or written through a computer using a dedicated tool (KT9302 information editing adapter).

　　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 or short circuit fault in the circuit/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; The recording time for a single device shall not be 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: Main power supply: 220V (+10%, -15%, 50Hz ± 1%)

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

　　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 kilometer, the wire diameter 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 :

• Fiber optic telephone