User Manual
© 2022 Fiberroad Technology Co., Ltd All right reserved
Page 4 of 11
LED
State
Indication
PWR
On
Power On
Off
Power Off
LINK/ACT
On
Valid Ethernet Link
Blink
Data Transmission
Off
No Ethernet Link
❖
RJ45 Ethernet Port
Figure 1 10/100/1000M Lan Port Pinouts
10/100Mbps 10/100Base-T, RJ45 Connector Pin
Assignment
Pin
MDI Signal Definition
MDIX Signal Definition
1
TD+
RD+
2
TD-
RD-
3
RD+
TD+
4
NC
NC
5
NC
NC
6
RD-
TD-
7
NC
NC
8
NC
NC
RJ 45 port support automatic MDI/MDI-X operation. Can connect the PC, Server,
Converter and HUB .Pin 1,2,3,6 Corresponding connections in MDI. 1
→
3, 2
→
6, 3
→
1,
6
→
2 are used as cross wiring in the MDI-X port of Converter and HUB.
10/100/1000Base-TX are used in MDI/MDI-X, the define of Pin in the table as below.
1000Mbps 1000Base-T, RJ45 Connector Pin Assignment
Pin
MDI Signal Definition
MDIX Signal Definition
1
BI_DA+
BI_DB+
+
BI_DA-
BI_DB-
3
BI_DB+
BI_DA+
4
BI_DC+
BI_DD+
5
BI_DC-
BI_DD-
6
BI_DB-
BI_DA-
7
BI_DD+
BI_DC+
8
BI_DD-
BI_DC-
As aforementioned, an Ethernet crossover cable is adopted to connect two ports of the same
configuration (i.e. MDI-to-MDI or MDIX-to-MDIX). However, it may generate some confusion and
inconveniences when deploying two different kinds of Ethernet cables. The auto-MDI/MDIX
technology is developed to fix this problem: It automatically switches between MDI and MDIX as
required. Auto MDI/MDIX ports on newer device interfaces detect if the connection requires a
crossover, then automatically choose the MDI or MDIX configuration to properly match the other
end of the link. In this case, it doesn’t matter if you using straight through or crossover cables. The
chart below shows cable types for MDI/MDIX and auto-MDIX.
❖
The Port Status LEDs (FR-POE233)
Summary of Contents for FR-5A3010P
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