The split-line alarm host is a host where the front-end detection device switch trigger signal is directly connected to the host zone to implement alarm.

The bus system alarm host connects the front end detection device switch signal to the address module (or alarm module, zone expansion module). When a detection device is triggered, the detector sends an alarm signal. The address module (or alarm module) , zone expansion module) is transmitted to the alarm host through the data bus.

The zone is the most basic feature of the alarm host and is the connection port of the front-end detector and the alarm control host. It is the minimum space unit that can distinguish alarm events. A zone can be a detector or multiple detectors in a spatial area and reflected on the host, just an interface. The 8 zone or 16 zone means that the host has 8 or 16 such interfaces.

Wired and wireless refers to the communication between the alarm host and the detector. Wired cables need to be connected to the host and the detector; wireless does not require cable connections, and microwave transmission and receiving devices are used to transmit alarm signals. Power supply still needs the wired way.

Positive and negative power connection: Negative connection to the alarm host COM - Positive connection to the motherboard power supply positive AUX.

Signal line: connect to the receiving end of the 34 interface (normally closed), 34 two interface any access to the host's zone Z terminal, resistor in series close to the detector side, the other interface line to the host COM terminal, not recommended Use a network cable. Especially for remote detectors, use standard wire as much as possible.

ZH8240 bus alarm host is a powerful bus management system, all Chinese menu is easy to operate, follow-up extended functions, can be linked with monitoring, lighting, etc., stable performance, long wiring distance, can be widely used in perimeter alarm System, cell network alarm center, continuous row shops and large factory networked alarms can be managed by computer and conveniently integrated with other systems.

Yangzhou Chengde (YC) is one of the best pipe manufacturers in the world, and the production diameter from 8" to 48" in OD and wall thickness from 9.53 mm up to 140mm. We can produce the A/SA53 steel pipes according to the ASME SA53 and ASTM A53 standards.

Yangzhou Chengde founded in 1988, always insist on innovating and creating excellence. At present, the total assets is 6 billion RMB, the number of staff is 3000 and cover an area of 2080 acres of the Chengde group. Chengde group is  the first echelon in national brand on seamless steel pipe and including 4 sections: Jiangsu Chengde incorporated company, Yangzhou Chengde Steel Pipe Co., ltd, Yangzhou Chengde Heavy Industry Co., ltd and Taizhou Chengde Steel Pipe Co., ltd.


Chengde have been working on the research.manufacture and sale of seamless pipe about 30 years, and the advantage of core competence is more prominent by integrate in technical.management and market with PCC.

1 The Piercing and rolling technology of Chengde possesses a number of patents in designing and manufacturing the equipment. The production is efficient and flexible, and the quality is stable.

2 The material grade is complete, and the size range is wide (three produce line can manufacture all non-standard sizes).  The Minimum Order Quantity (MOQ) as low as ONE piece, and the date of delivery is short with excellent cost performance.

3 The sales and service team is professional and localize.ASME SA53 Steel Pipe


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