Moxa ioPAC 5542-HSPA-C-T — установка оборудования и подключение для SCADA систем [11/26]
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Moxa ioPAC 5542-HSPA-C-T — установка оборудования и подключение для SCADA систем [11/26]

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Moxa ioPAC 5542-C-T [11/26] Serial connectivity
ioPAC 5500 Hardware Installation
2-6
RJ45 Connector Pin Assignment
Contact Media Direct Interface Signal
1 Tx + (transmit)
2 Tx - (transmit)
3
Rx + (receive)
4 Not used
5 Not used
6 Rx - (receive)
7 Not used
8 Not used
Port Trunking
The ioPAC 5500 RTU controller has a Port Trunking function (active backup mode) that can convert two
LAN-port IP addresses into one virtual IP address for easy SCADA integration and Ethernet redundancy. In the
following diagram, both LAN ports on each ioPAC RTU controller are connected to a managed switch on an
Ethernet network running SCADA software. For more details regarding configuration setup, refer to the ioPAC
RTU Software User’s Manual.
Serial Connectivity
Connecting to a Serial Device
The ioPAC RTU is equipped with two 3-in-1 serial ports that support RS-232/422/485, making it more
convenient to connect field serial devices.
Pin
RS
-232
RS
-422 and 4-wire RS-485
2
-wire RS-485
1
DCD
TxD-(A)
–
2
RXD
TxD+(B)
–
3
TXD
RxD+(B)
Data+(B)
4
DTR
RxD
-(A)
Data
-(A)
5
GND
GND
GND
6
DSR
–
–
7
RTS
–
–
8
CTS
–
–
9
RI
–
–

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