5-2
N
N
o
o
t
t
e
e
:
:
When a user Port is defined as Computer / Terminal with DTR
support:
1. The RTU will not transmit unless it receives a DTR = no signal
from the Computer / Terminal.
2. The RTU will not receive unless it receives a DTR = no signal from
the Computer / Terminal.
Figure
5-1 RJ45-to-D-Type Female Connector Adapter
J1
(RJ45)
J2
(25-PIN
D-TYPE)
Tx_DATA
Rx_DATA
RTS
CTS
DSR
GND
DTR
Rec_LINE (DCD)
2
1
5
8
7
4
3
6
(3)2
(2)3
(7)4
(8)5
(6)6
(5)7
(4)20
(1)8
Tx_DATA
Rx_DATA
RTS
CTS
DSR
GND
DTR
Rec_LINE (DCD)
(9-PIN
D-TYPE)
RJ45
Connector
Pin No. 1
Pin No. 8
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