Rosslare AC-215 Hardware Installation Manual

Communications
AC-215 Installation Manual 21
5. Communications
Communication lines are used to upload and download information between
the ACU and the AxTraxNG software. Communication between the ACU and
PC is displayed by the system’s two LEDs.
 The RX LED flashes when the controller receives data
 The TX LED flashes when the controller transmits data
The ACU address is defined in the AxTraxNG software. For successful
communications, the dipswitch must be defined with the same address.
There are three connection modes:
 Serial
 RS-232
 RS-485
 Modem
 LAN
5.1 Serial Connection
The PC Serial Port controlling the ACU is assigned in the Network Properties in
the AxTraxNG software. By default the default is set to 9600 for direct
connection to the PC using the standard RS-232 interface.
5.1.1 RS-232 Connection
Table 5: RS-232 Connection
ACU DB9 Connector DB25 Connector
GND
Pin 5 Pin 7
Tx
Pin 2 Pin 3
Rx
Pin 3 Pin 2
DTR
Pin 4 Pin 20
The RS-232 connection can only be used for one ACU. The distance between
the PC and ACU can be no more than 50 m (150 ft). If the baud rate is
increased to 57600 the distance can be up to 10 m (30 ft). J1 must be in the
RS-232 position to select the RS-232 communication.
5.1.2 RS-485 Connection to the PC
Up to 32 ACUs can be linked together and connected to a single
communication port on the PC.
The RS-485 interface must be used when multiple controllers are connected.
The serial port used to control the ACU is assigned in the AxTraxNG software
Network Properties dialog box.

Rosslare AC-215 Specifications

General

Brand	Rosslare
Model	AC-215
Category	Gateway
Language	English