Installation precautions for access control systems

First, the installation and debugging of the access control management system Notes 1, power:

Ensure sufficient power, try to use a linear power supply, door locks and controllers should be powered separately. Install the power supply as close as possible to the electrical equipment to avoid interference and transmission loss.

2, wiring:

Divided into power lines, communication lines, signal lines, pay attention to strong, weak separation of wiring, two pipes separated by more than 20cm.

Power cord: The wire is thick enough to use multiple wires.

Signal and communication lines: Shielded Category 5 twisted pairs. The 485 bus must use a twisted pair of wires to connect A+, A-. It is recommended to use 4*0.5 four-core shielded cable when purchasing the wire.

Note the following points:

·Shield wires must not be used as connection lines for 0V voltage (power ground). ·There can be only one grounding terminal for each shielded circuit. ·When shielded loops cannot be grounded, they can be connected to another shielded loop of the network. .

• The signal grounds of the individual modules must be connected together.

• If there is a breakpoint in the middle of the line, the breakpoint must be soldered and insulated. • Do not put the network cable with AC power.

• If the network connection exceeds 1200 meters, a repeater is added and the repeater can be extended by 1200 meters.


3, access control system:

Pay attention to the selection of the installation location to prevent electromagnetic interference.

• Reader: Do not install on metal objects. The distance between the two readers should not be less than 30 cm. It is best to supply power through the controller. If the reader is powered separately from the outside, use a linear regulator (transformer) for the card reader power supply, and do not connect the negative terminal of the DC to the AC ground.

· Network adapter: The connection between the controller and the controller is hand-in-hand. • Controller: Without isolated controllers, it is recommended to use the same power supply.

· Lock: Magnetic lock. When installing the magnetic lock, the lock body and the iron plate must be tightly combined, otherwise there will be insufficient suction. Electric plug lock, if you need to open the socket when installing the electric plug lock, pay attention to the aperture must be large enough, the depth must be deep enough, so that the bolt can be fully inserted. The bolt can not be fully inserted. After the door is locked, there will be a constant bouncing of the bolt or the operating current is always great and the lock body is hot.

4. Use multiple door access controllers to pay attention to the installation position. The installation position of multiple door access controllers should be selected according to the level of safety of the protected area. At the same level of controlled area, the access controller can be installed in any controlled area. When controlling multiple doors with different security levels, access controllers should be installed in areas with high security levels.

5, the use of multi-door access controller to pay attention to the protection of the electric control lock cable when the electric control lock must leave the controlled area, the same level of controlled area, high-level controlled area laying, it may become vulnerable to attack In order to avoid this situation, try to install in a high-level controlled area and protect the input cable of the implementation part.

Note: The specific device connection line should be completely wired according to the wiring requirements on various access control devices, and the detailed wiring diagram should be kept for future maintenance.

Second, the installation and commissioning of two kinds of access control management system components (1) Access control host installation and debugging a, install the software to install LINKSWORKS software and the corresponding database system on the management PC.

b. Set the parameter reference LINKSWORKS access control system manual, equipment related parameters, and make the following settings:

1) The access controller is initialized. 2) Set the communication port and baud rate.

3) Set the communication port and baud rate in the communication server. 4) Add controller 5) Edit access control parameters.

(2) Access Control System Testing: Registration of new cards, cancellation of cards, inquiries, etc. 1) Set the door user practice group. 2) Increase the batch of cards 3) issue cards.

c. Faults and Solutions Symptom: The controller (access control host) cannot communicate with the computer software.

Analysis: 1 The serial port number may be set incorrectly, or the serial port of the computer may be damaged.

2 whether the active communication protocol converter is powered on.

3 The communication protocol transitions to the controller's line for short circuit or open circuit. 4 The communication line is reversed. 5 communication protocol converter. 6 access controller chip burned. 7 access controller motherboard circuit power supply is insufficient. (2) Magnetic Door Magnetic Function: Door Magnetic is a device used to detect the opening or moving state of doors, windows, drawers, etc. WMD-931 door magnetism belongs to wired door magnetism, including two parts of permanent magnet and door magnetic body. Door magnetic body has two door magnetism state line output.

Door magnetic installation: Door magnetic body is generally installed on the fixed door frame, window frame or drawer fixed part, and the magnet is installed in the active part. Magnet and door magnetic body should be aligned up and down, the longest distance between the two is less than 10mm. Connect the input signal line of the wired door magnet to the door magnetic input relay of the access controller.