Rockwell Automation 57C570 AutoMax PC3000 User Manual - Manual (Page 138)

11Ć10
AutoMax PC3000
2
3
4
7
5
6
20
10
(2) (to user Trans pin)
(3) (to user Recv pin)
(7) (to user Sig Com)
(10)
User Equipment
TXD
RXD
CTS
DSR
must be asserted
Wire to a +5 to +12 volt level
external power supply or
user equipment ready pin on
an RSĆ232 computer.
Figure 11.9 Ć Cable Break Detect
AutoMax PC3000
2
3
4
7
5
6
20
10
(2)
(3)
(7)
(5) (Transmit Enable)
The user transmitter
is disabled or shut off when
the AutoMax receiver is full.
In this configuration no
characters are lost by the
AutoMax program receiving
characters.
User Equipment
TXD
RXD
DSR
DTR
+12 V
Figure 11.10 Ć OneĆdirectional Flow Control