Models without ETHERNET port
1155
6699
RS232 SERIAL INTERFACE
Female DB9 connector
J1
1 DTR
2 TX During transmission, takes the values “0” and “1” depending on data.
3 RX During reception, takes the values “0” and “1” depending on data.
4 DSR
5 GND
6 DTR When “1”, device is power on.
7 CTS
8 RTS When “1”, device is ready to receive data
9 n.c.
NOTES:
Given the presence of the RS232 standard, logic value “0” corresponds to a voltage level of between +3Vdc and +15Vdc
and logic value “1” corresponds to a voltage level of between -3Vdc and -15Vdc.
DEVICE > PC connection
The following picture shows an example of connection between the device and a personal computer using a 9 pin
RS232 serial connector:
DEVICE PC
DCD
RXD
TXD
GND
DSR
CTS
DTR
TXD
RXD
GND
DTR
RTS
DTR
RTSCTS
DSR
DB9
1
2
3
4
5
6
7
8
9
DB9
1
2
3
4
5
6
7
8
9
When use a serial cable, we recommend the installation of a ferrite core on the power supply cable.
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