DH9361 Pipe Gallery Optical Fiber Telephone Main Unit and Sub Unit / Optical Fiber Fire Telephone Main Unit / Networked Fire Telephone Main Unit / Intelligent Fire Telephone Main Unit

DH9361Pipe GalleryFiber Optic Telephone Master/Slave Unit / Fiber Optic Fire Telephone Master Unit / Networked Fire Telephone Master Unit / Smart Fire Telephone Master Unit

I. Overview:

1) Application Scope: Special application scenarios such as communication between control rooms and on-site, fire fighting command and evacuation rescue in emergency situations; scenarios with long communication distances such as urban pipe galleries, subways, tunnels, ports, etc.

2) This device can be used independently, or it can be networked via optical fiber with devices of the same model through the KT9301 series optical transceivers of our company, so as to realize functions such as calling/calling between the main control room and regional control rooms or each regional slave unit.

a. The devices for system networking include: DH9361 Fire Telephone Master Unit, KT9301 series audio data optical transceivers, DH9272 series fire telephone slave units, DH9273(A) series fire telephone jacks and other components;

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

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

c. When the system is networked, it can include 17 fire telephone master units and 1683 telephone slave units;

d. The regional main unit can be set to "non-forwarding", "automatic forwarding", "delayed forwarding" and other modes through the menu. When a call comes in from a slave unit in this area and the local unit fails to answer in time, it can be forwarded to the system main unit in a predetermined manner;

e. When the system is networked, the optical fiber transmission distance can reach more than 25km (single-mode single-fiber);

3) This device adopts our company's two-bus technology, which realizes the parallel transmission of power supply, communication and voice signals on two wires, and has no polarity requirement during wiring, which facilitates construction and debugging.

4) This device can call and perform full-duplex calls with slave units in the same area, and the master unit can communicate with up to 5 slave units at the same time; when used as a "system main unit", the system main unit can call and perform full-duplex calls with each regional main unit or each regional slave unit, and can communicate with up to 5 master or slave units.

5) This device has the function of slave unit location note information, which can be input via keyboard or written into a computer using a dedicated tool (KT9302 information editing adapter).

6) This device has very complete detection measures, which can monitor the bus status and slave unit status in real time, and can send sound and light alarm prompts when an open circuit or short circuit fault occurs on the line, or a slave unit "drops off". It can automatically recover after the fault is eliminated.

7) This device adopts full digital quantity control, each functional unit adopts ARM centralized control, combined with software and hardware technology, so it can adapt to various complex environment applications. It uses silicone keys for control, with good hand feel.

8) This device has the function of recording and displaying call and answer time, and can query and display no less than 1000 time records; the system main unit can query the time records saved by each regional main unit through menu operations.

9) This device adopts digital recording technology, which is reliable and has a long service life, with automatic call recording; the recording time of a single device is no less than 120 minutes.

10) This device has a self-check function, which can detect the display and sound components.

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

II. Main Technical Indicators:

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

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

3) Transmission Attenuation: ≤5dB

4) Line Conditions: The voltage at the slave unit end is not less than 18V

Wire: Shielded cable or twisted pair should be used, and the wire diameter should be above 1.5 square millimeters. If the wiring length exceeds 1 kilometer, the wire diameter should be appropriately increased; if shielded cable is used, the shield layer should be grounded at one end.

Insulation Resistance Between Wires ≥ 20kΩ Capacitance Between Wires ≤0.7μF

5) Bus Length: ≤1200 meters

6) Recording Time: More than 120 minutes

7) Clock Error: ＜6s/day

8) Working Environment: Temperature 0～40℃, Relative Humidity Less than 95%.

All products have complete fire certification, welcome to inquire. www.szhsj119.com

Shenzhen Hongsheng High-Tech Electronics Co., Ltd.

Contact: Mr. Chen Cheng

Tel: 【15889370119】 (WeChat same number)