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Motorola MOSCAD-M RTU Hardware Manual page 12

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2. The RTU will not receive unless it receives a
DCD=on signal from the modem.
3. When using a modem in auto-answer mode
(connected to a computer port) for remote service,
the RTU does not support the RTS/CTS protocol,
as the port is designed to operate with a local
computer as well as with a modem.
When the connector is facing upwards, the left-hand
pin is Pin No. 1, and the right-hand pin is Pin No. 8.
RJ45
Connector
J1
(RJ45)
1
Tx DATA
2
Rx DATA
6
RTS
3
CTS
4
GND
8
DTR
5
Rec Line (DCD)
7
+12V
NOT USED
Figure 2
RJ45-to-D-Type Male Connector Adapter
CABLES AND ADAPTERS
J2
(9-Pin
(25-Pin
D-Type)
D-Type)
(3)
2
Tx DATA
(2)
3
Rx DATA
(7)
4
RTS
(8)
5
CTS
(5)
7
GND
(4)
20
DTR
(1)
8
Rec Line (DCD)
9

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