Installation steps of access control system
1, front-end equipment
A, install a card reader at the entrance. Do not approach or touch high frequency or strong magnetic fields (such as heavy motors, monitors, etc.). ) within the induction range of the card reader, and cooperate with the grounding mode of the control box.
B, install the exit button at the exit.
C electromagnetic lock is installed on the upper edge of the door and door frame.
D, in order to ensure safety and beauty, the controller and power box can be installed in the field or weak current well. The advantage of installing the controller on site is to save the use of wires. The controller is installed in the weak current well, which is convenient for future maintenance and system safety. The controller box can also be installed above the card reader and close to the electromagnetic lock. The specific situation can be installed according to the customer's choice.
2, the central control room equipment
A, the control host and keyboard are installed on the facade wall or workbench.
B, the alarm device is placed in a position with good alarm effect.
C due to the particularity of the access control system, it is required to provide a good power supply for the system. It is suggested that UPS power supply be used to provide centralized power supply for access control system.
Precautions for access control installation
The main purpose of prohibiting system installation is to prevent losses and crimes, so it must have high reliability. An access control security system may not give an alarm during most of its operation, so there is no need to give an alarm, and the probability of giving an alarm is generally very small.
But if the alarm system fails in this extremely small probability, it often means disaster arrival. Therefore, attention should be paid to: 1) the connection between equipment, trunk lines and terminals is not firm; Should be checked in time, loose place tighten firmly.
2) When the shielded cable is used, the outer copper mesh collides with the core wire; According to the requirements, the outer copper mesh should be separated from the core wire, and special attention should be paid to the pressure.
3) When welding with welding oil, the non-welding parts are polluted. After welding, the welding oil should be wiped off with cotton silk (cloth) in time.
4) Card reader: Do not install it on a metal object, and the distance between two card readers should not be less than 30cm. It is best to supply power through the controller. If the power supply of the card reader comes from the outside alone, please use a linear regulated power supply (transformer) to supply power to the card reader, and the DC negative electrode cannot be connected to the AC grounding terminal.
5) Network card: The connection with the controller is manual.
6) Controller: without isolation, it is recommended to use the same power supply.
7) Lock: When installing a magnetic lock, the lock body and the relay board must be closely combined, otherwise the suction is insufficient. Plug lock, if you need to open the jack when installing the plug lock, pay attention to the gap must be large enough and the depth must be deep enough.
Common faults of access control system
1, reporting that access control communication is blocked.
1) Check whether the serial port is set incorrectly (determine the serial port used).
2) Check whether the access control communication bus is short-circuited or open (eliminate short-circuited and open-circuited communication lines).
3) Check whether the communication chip 75 184 of the RS485 communication card is damaged (replace the communication chip 75 148).
4)RS485 communication card is damaged (replace RS485 communication card)
2, personal access control communication impassability
1) Check the access control communication line for wiring errors (adjust wiring).
2) Check whether the access control communication chip 75 148 is damaged (replace the communication chip 75 148).
3) Check whether the access control read-write chip and module are damaged (replace the read-write chip and module)
4) Access control read-write board failure (replace access control read-write board)
5) Check whether the machine number has changed (adjust the machine number)
3, part of the access control communication can't
1) Check whether there is an open circuit in the middle of the access control communication bus (eliminate the open circuit phenomenon).
2) The communication line is too long or there are too many access control devices (RS485 amplifier is installed).
The above is the relevant introduction of this article. I believe you will have a simple understanding after reading it.
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