Ensure sufficient power and use linear power sources as much as possible. The door lock and controller should be powered separately. The installation of the power supply should be as close as possible to the electrical equipment to avoid interference and transmission losses.

2. Wiring

It is divided into power lines, communication lines, and signal lines. When wiring, pay attention to separating strong and weak electricity, and the distance between the two pipes should be greater than about 20cm.

Power cord: The wire diameter is thick enough and uses multiple strands of wire.

Signal and communication lines: use shielded Category 5 twisted pair cables. The 485 bus must be connected using a twisted pair of wires. When selecting wires, it is recommended to use 4 * 0.5 four core shielded wires.

(1) Shielded wires must not be used as connection wires for 0V voltage (power to ground)

(2) Each shielded circuit can only have one grounding terminal

(3) When the shielding circuit cannot be grounded, the shielding wire can be connected to another shielding circuit in the network.

(4) The signal ground of each module must be connected together.

(5) If there is a breakpoint in the middle of the circuit, it needs to be soldered with a soldering iron and insulated properly.

(6) Do not place the network connection cable together with the AC power supply.

(7) If the network connection exceeds 1000 meters, a repeater should be added, and the repeater can be extended by another 1000 meters.

4. Location selection

(1) Card reader: Do not install on metal objects, the distance between two card readers should not be less than 30 centimeters, and power should be supplied through a controller. If the card reader is powered solely from the external source, please use a linear stabilized power supply (transformer) for the power supply of the card reader, and do not connect the negative pole of the DC to the grounding terminal of the AC.

(2) Network adapter: The connection between the controller and the network adapter is done hand in hand.

(3) Controller: For controllers without isolation, it is recommended to use the same power supply.

(4) Lock: When installing a magnetic lock, it is important to ensure that the lock body and the relay plate are tightly connected, otherwise there may be insufficient suction force. Electric plug lock, when installing the electric plug lock, if a hole needs to be opened, pay attention to the hole diameter must be large enough and the depth must be deep enough to allow the lock tongue * to be inserted. The lock tongue cannot be inserted, and after locking the door, there may be continuous jumping of the lock tongue or a high working current, causing the lock body to become hot.

1. Check if the electronic control lock is functioning properly. Check the power supply or replace the electronic control lock

2. Whether the lock tongue and lock buckle are mechanically stuck, repair mechanical faults or replace parts

3. Check the indicator lights on the control board and whether the communication between the control board and the module is normal to troubleshoot

4. Check if the communication between the card reader and the module is normal and troubleshoot the issue

5. Has the information day closing command been set to adjust the opening time through software

6. Did the operator initialize the access control system or reauthorize other commands through software

1. Check if the serial port is set incorrectly (determine the serial port used)

2. Check whether there is a short circuit or open circuit in the access control communication bus (eliminate the phenomenon of short circuit or open circuit in the communication line)

3. Check if the RS485 communication card communication chip 75184 is damaged (replace the communication chip 75148)

4. RS485 communication card damaged (replace RS485 communication card)

5. Check if the crystal head of the network cable is properly installed, verify if the network cable is connected, and ping the address of the access control controller.

Clear the access control controller and reload the time

1. The operator sets the door inhibitor status to normally open, or other reasons cause the controller to be in a normally open state; 2. Controller malfunction;

Handling method:

Set the door lock controller status to normal. If the fault persists, replace the controller.

1. The IC card has been set with a valid reading period during IC card authorization (can be set with a valid reading period for all day)

2. Abnormal heating of access control controller (replace access control motherboard)

3. Access control read-write antenna (adjust and fine tune capacitors to enhance card reading distance)

1. Using signal lines that do not meet the requirements or inferior signal lines;

2. The laying of signal lines is not standardized, such as the signal lines and power lines being threaded in the same conduit.