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Hard ware confi gura tion
CNC 8065
4.
(R
EF
: 1404)
CENTRAL UNI
T I
CU.
4.7
RS232 serial line connection.
Pinout of the central unit connector.
9-pin male SUB-D type connector.
Cable characteristics.
Twisted-pair shielded cable should be used to minimize interference between cables, thus
preventing poor communication in long lengths.
Node connection.
Module interconnection.
The cable shield must be connected to the connector at both ends. It is recommended to
reference all the control and data signals to the same point (pin 5 GND), thus avoiding
reference points with different voltages because there could be voltage differences in long
lengths between the two ends of the cable.
Characteristic.
Type.
Shielded. Twisted-pair, with a minimum wire section of 0.14 mm².
Capacitance.
164 pF/m (50 pF/ft).
Maximum length.
At a baudrate of 19200 Bd, 15 m (50 ft) or a length equivalent to a capacitance
of 2500 pF.
• Simplified connection
Pin.
Signal.
Description.
1
DCD
Carrier detect.
2
RxD
Receive data.
3
TxD
Send data.
4
DTR
Data terminal ready.
5
GND Reference
signal.
6
DSR
Data set ready.
7
RTS
Request to send.
8
CTS
Clear to send.
9
RI
Ring indicator.
1
5
6
9
TxD
RxD
DSR
6
3
2
5
9
8
7
Housing
Housing
1
4
CNC
RxD
TxD
DTR
GND
GND
CTS
DTR
RTS
DSR
RTS
CTS
Содержание CNC 8065
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