17
Once realised the repeater connection, it will be needed to configure the main control panel according the
number of repeaters (see point 3.2.5.8.) and communication parameters (see point 3.2.3.5.9.). Communication
parameters must be the same with the repeaters and we must be concerned that are used too for the computer. The
pre- configured values are 9600 bauds, 8 bits for data, 1 bit for stop and no polarity.
2.4.4.- Computer.
As we can see in the picture, we can connect a PC to the control panel to configure it with the help of a
programme software (called EASYLondon), with a serial connector. We have to know that when we connect a PC
the printer and repeater exit must be inability.
Communication with computer requires their configuration (see point 3.2.3.5.9.). The pre- configured
values are 9600 bauds, 8 bits for data, 1 bit for stop and no polarity.
If distance is higher than 5 meters, we will have to change the connection to RS485 than RS232 with a maximal
distance of 1,5 km in consequence.
There is an adaptor to change it from RS232 to RS485 needed to connect the computer by a two wires
system to receive and send (half-duplex). The advantage is use the line Tx y Rx without the necessity of a reception
line because this is done directly by the adaptor automatically.
The adaptor has also a protection to assure EMI’s to the communication.
Zumbador
Minidin6
R
x
D
T
x
D
G
N
D
RS232
Conexión con la
fuente de alimentación
Conexión tarjetas
3 RxD
2 TxD
5 GND
Puerto serie PC
A
B
G
N
D
RS485
A1
A2
RS-485
RS-232
3 Tx
2 Rx
5 GND
A
B
GND
R
S
4
8
5
CONTROL PANEL
RS-485 CONNECT
CONVERTER WITH RST CONTROL
RS-232 / RS-485
A1 / A2 =
220Vac power
supply acc
model
A
B
Buzzer
Power supply
connection
Cards connection
Содержание London
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