¡Error! Utilice la ficha Inicio para aplicar Heading 1 al texto que desea que
aparezca aquí.
36
AC-425 Hardware Installation and User Guide
6.
Communications
Communication lines are used to upload and download information between the AC-425
panel and the AxSraxNG™ server. When the access control panel and the computer are
communicating, the system’s two LEDs flash accordingly.
The RX LED flashes when the controller receives data
The TX LED flashes when the controller transmits data
There are three connection modes:
Serial Network (RS-232 or RS-485)
Modem Network
TCP/IP Network
6.1
Serial Network Connection
The computer serial port controlling the access control panel is set from within the
AxSraxNG™ server. The default baud rate is 9600 bps for direct connection to the
computer.
When using an RS-232 connector, only one AC-425 panel can be linked to each
communication port on the computer. Use an RS-485 if you wish to connect more than one
panel on one communication port.
The J1 switch must be set to the correct position to select the RS-232 communication.
6.1.1
RS-232 Connection to the Computer
Set the J1 switch to the RS-232 position.
Access control panel
DB9 Connector
DB25 Connector
GND
Pin 5
Pin 7
Tx
Pin 2
Pin 3
Rx
Pin 3
Pin 2
The RS-232 connects the computer to only a single AC-425 panel.
The distance between the computer and the AC-425 panel must be no more than 150 feet
(50 meters).
If the baud rate is increased to 57600 or beyond, the distance must be no more than 30
feet (10 meters).
6.1.2
RS-485 Connection to the Computer
Set the J1 switch to the RS-485 position.
Up to 32 access control panels (AC-425, AC-225, AC-215, or AC-525) can be linked
together and connected to a single communication port on the computer.
