The signal cable of the alarm box is a type of signal cables. It comes in multiple specifications. You can choose one based on actual requirements. The signal cable of the alarm box is used to transmit the alarm information of the system to the alarm box for audible and visual display.
Appearance
One end of the signal cable is an RJ45 connector, and the other end is a DB9 or DB25 connector. Use the DB9 or DB25 connector in accordance with the site survey report. The following description takes the alarm box signal cable with a DB9 connector as an example.
Figure 1 shows the alarm box signal cable.
Pin Assignment
Table 1 describes the pins of the alarm box signal cable.
Installation Position
One end of the signal cable with an RJ45 connector is fixed to the input serial port of the alarm box. The other end of the signal cable with a DB9 or DB25 connector is fixed to the serial port on the LMT.
Figure 2 shows the installation position of the signal cable of the alarm box.
