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10
RxD
TxD
GND
RxD
TxD
GND
PC Serial Pot
CONSOLE
3
2
5
6
3
4、5
The values of the connecting parameters of the terminal simulation program on the PC are as
follows:
9 Baud Rate: 9600
9 Data Bit: 8
9 Stop Bit: 1
9 Parity Bit: None
9 Flow Control: None
4.3.2 Connect to Ethernet
ISCOM2924GF switch provides 20 1000BASE-X Ethernet interfaces in the form of SFP and 4
combo interfaces. The auto-adaptation function of all the interfaces is enabled by default.
The 4 Ethernet electrical interfaces in the 4 combo interfaces of ISCOM2924GF switch have Auto
MDI/MDIX function. The interface can switch between MDI and MDIX automatically. The
connection can be established successfully regardless of the type of interface (MDI or MDIX) the
opposite site of the connection adopts or the type of cable (straight through or crossover) applied.
For RJ-45, the definition of MDI and MDIX signal is shown in the table below. For the pin
numbering of RJ-45 connector and jack, please refer to the “CONSOLE interface signal definitions
of the switch” in section 4.3.1.
1000M 100M
Pin Number
MDI MDIX MDI MDIX
1 DA+ DB+ TX+ RX+
2 DA- DB- TX- RX-
3 DB+ DB- RX+ TX+
4 DC+ DD+ NC NC
5 DC- DD- NC NC
6 DB- DA- RX- TX-
7 DD+ DC+ NC NC
8 DD- DC- NC NC
The Ethernet electrical interfaces of ISCOM2924GF switch works at MDIX mode when the
auto-adaptation function is disabled. In this circumstance, the interface can be connected to an
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