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Only with XON/XOFF protocol
19
TD/OP
15 pin
IPP
TD/OP
9 pin
15 pin
S o c k e t
P i n s
Pins
S o c k e t
RXD
2
4
TXD
TXD
6
3
RXD
RTS
8
12
GND
1
15
GND
Sig. GND
5
5
CTS
10
RTS
8
1
Protection
CP 524 and CP 525
25 pin
IPP
C P
9 pin
25 pin
S o c k e t
P i n s
Pins
S o c k e t
RXD
2
2
TXD
TXD
6
3
RXD
RTS
8
5
CTS
GND
1
7
GND
Sig. GND
5
CP 521
25 pin
IPP
C P
9 pin
25 pin
S o c k e t
P i n s
Pins
S o c k e t
RXD
2
11
TXD
TXD
6
3
RXD
RTS
8
9
CTS
DTR
7
7
DSR
GND
1
2
GND
Sig. GND
5
21
23