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Serial DB9 Port with IRIG-B Support
Figure 4.9
a
In RS232 DTE mode, ports transmit to DTE devices on pin 2 and receive from DTE on pin 3.
Note
Pins 7 and 8 are connected internally. In RS232 mode, these pins enter a high
impedance state. A DTE that asserts RTS will see CTS asserted. However, the device
will not perform hardware flow control.
Serial RJ45 Port
8
Figure 4.10
a
The DSR, DCD and DTR pins are connected together internally.
b
In RS232 mode, the RJ45 ports conform to EIA-561 DTE, which transmit on TXD and receive on RXD.
Note
Pins 1, 2 and 3 and pins 7 and 8 are connected internally. In RS232 mode, these pins
enter a high impedance state. A DTE that asserts RTS will see CTS asserted. However,
the device will not perform hardware flow control.
RUGGEDCOM RS416F
Installation Manual, 04/2021, C79000-G8976-1354-04
5
1
9
6
Serial DB9 Port Pin
Configuration
1
Serial RJ45 Port Pin
Configuration
Communication Ports
Pin
RS232 DTE
1
a
2
RX
a
3
TX
4
5
Common (Isolated) Ground
6
Common (Isolated) Ground
7
RTS
8
CTS
9
Common (Isolated) Ground
Shield
Chassis Ground
Pin
RS232
Mode
a
1
DSR
a
2
DCD
a
3
DTR
4
Common (Isolated) Ground
b
5
RXD
b
6
TXD
7
CTS
8
RTS
Shield
Chassis Ground
4.3 Serial Ports
Mode
RS485
RS422
RX-
TX/RX+
TX+
RX+
IRIG-B+
TX/RX-
TX-
RS485
RS422
Mode
Mode
RX-
RX+
TX/RX+
TX+
TX/RX-
TX-
27
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