Access control system cracking

There are two kinds of access control systems: one is independent access control, and the other is network access control. Here's how to crack it:

1. Independent access control system is an identity judgment system and a driving electronic lock system. So just disassemble the independent access control housing (installed outside the door because of punching or fingerprints), carefully observe the terminal, and find the terminal of "Go Out Button" (or BUTTEN, I can't remember English clearly), and it will be OK after short circuit! Ha ha.

2. There are two kinds of networked access control: one is based on RS485 communication, which needs a communication converter, and the other is based on TCP/IP communication, which does not need a communication converter, but only needs to use the network port (RJ45). The following analysis falls into two types:

Effective and feasible basic work of cracking: first, we must know the specific model of access control and have a set of background software, which is the premise;

RS485 communication: Connect the computer to the RS485 bus of the entrance guard through the communication converter, open the software, and upload the registration card or fingerprint to the entrance guard host. All right! You can open the door now. However, it must be carried out in the case of the original machine, because RS485 communication protocol does not allow two upper computers to exist at the same time.

RJ45 (network port) is basically the same as above, haha, not too detailed. . . . . . . It's just limited to technical exchanges. . . . . .