7. Distributing frame alarm
The monitoring station monitors the security unit of distributing frame in real time. Once the telephone line is over the current and voltage and damages the distributing frame, the security unit will give off acousto-optic alarm signal, and transfer the alarm signal to the monitoring microcomputer and give off voice alarm automatically through telephone line or local area network, to ensure the security of communication circuit.
8. Cable disconnection alarm
The monitoring station can carry out inspection on each kind of communication cable. When the cable is cut and stolen, this machine will immediately give off acousto-optic alarm, and automatically detect and display the distance, orientation and alarm time of the . At the same time, it will transfer the alarm information to the monitoring microcomputer and give off voice alarm. Therefore, the relevant personnel can find and stop cutting and stealing crime, and effectively reduce economic loss.
9. Door access control
Under normal condition, the alarm protector can effectively monitor the frequency, time, name and department of the staff who enter into the machine room and access network. When the door isn't closed over 4 hours, the monitoring microcomputer will give off the over-time door opening voice alarm, alerting the relevant personnel to close the door. If the first-aid repairing personnel hurry to repair without the card, they can inform the monitoring center to open the door in long distance through microcomputer. If the non-staff forcibly open the door, the door access control system will immediately transfer the alarm information to the monitoring microcomputer, and alert that someone has entered into the machine room illegally.
10. Voice Alarm Function
Voice alarm function refers to when fire disaster, illegal entering, flammable gas spreading, watering and city planning power failure occur in module inter, the sound connecting to the monitoring microcomputer will give voice alarm, and dial staff members' telephone to report an emergency, reminding staff members entering the module office to look over the situation.
11. Thunder invasion resistance
When the communication facilities are in action, if the outer power supply happens the over-current and over-voltage phenomena, the communication facilities will be damaged. When the thunder invades, the monitoring station can cut off the outer power supply emergently to ensure the security of the communication facilities
12. Inquiring information and reason of alarm of various kinds,
The monitoring system can inquire various kinds of information. Owning alarm database, door access control database, polling inspection database and operating database, it can effectively inquire the operating information of each operation of monitoring microcomputer, polling information of each alarm point, such as the communicating state of the monitoring station, various kinds of alarm information, such as the happening time and place, as well as the door access control information, such as the frequency, time and personnel's name and department of door opening. This function is convenient for managerial personnel to inquire after the event.
13. Local area network (LAN) transportation
Adopting the local area network transportation mode can greatly enhance the transmission speed of data. In this monitoring system, the data transportation not only can choose telephone line mode, but also the local area network mode. It can be realized by means of menu setting and the users can set conveniently according to the practical situation.
14. Remote controlling and operation
(1) The operators can realize long-distance door opening only through the correct menu operation.
(2) Start up the fire extinguishing device and close it down after fire is extinguished. Starting up blower fan and stopping operation of blower fan can be both done through microcomputer operating. Automatic or manual mode won't effect the alarm condition.
Under the automatic control mode, when fire or other warning situations occur, the monitoring station will automatically reel off control instructions to control unit in accordance with program content, and make it carry out relay operation, realizing linking control. It can enter into manual control mode at any time under the automatic control mode, that is, controlling the switch or extinguishing the fire through menu operation of corresponding software.
Under the manual control mode, at this point, the automatic control function is out of work and control command can be only sent by manual operation of keyboard, to carry out mechanical action and realize linking control.
(3) Automatic polling inspection can be realized though menu operation
This monitoring station is mainly used in the self-service powered occasions. If carry out polling inspection on these occasions periodically, owing to personnel and traffic, it's quite inconvenient. Therefore, this monitoring system is added with automatic polling inspection function. Only setting up the polling inspection time through the monitoring microcomputer, the system will automatically poll and inspect all the long-distance terminal equipment till the fixed time. If communication fault occurs owing to telephone line is detached or the PLC operates abnormally, the monitoring microcomputer will automatically record the station name and save it in the database. The polling personnel needn't to observe on the site and can understand which equipment should be maintained only from the record in the database. It brings quite a lot of convenience for polling work and save a great deal of labor, material and financial power.
15. Printing the information and reason of alarm of various kinds
Owning printing function, the monitoring system can print the alarm information or door access control information out according to printing requirements, such as time and sort, so as to
keep in the archives for inquiring.
