Ruijie RG-S7808C Series Hardware Installation And Reference Manual page 16

External Port
M7800C-48GT4XS-P-EA provides 48 10/100/1000BASE-T RJ45 ports and 4 SFP+ ports. The RJ45 ports support
auto-negotiation at 10/100/1000 Mbps, and the SFP+ ports support 10G SFP+ modules, Gigabit SFP modules and hot
swapping. Copper ports do not support half-duplex at 10/100Mbps.
PoE Power Supply
The M7800C-48GT4XS-P-EA supports IEEE802.3af and IEEE802.3at PoE. It adopts the Alternative A mode for
transmitting power over Ethernet cabling, that is, power is transmitted through cable pairs 1, 2, 3 and 6.
LED
Identification on
LED
the panel
System LED Status
Mode LED Mode_Led
RJ45 port LED (in
Link/ACT
switching mode)
RJ45 port LED(in
Link/ACT
PoE mode)
SFP+ port LED Link/ACT
Button
The Mode button has the following functions:
and the yellow LED indicates PoE mode.
In PoE mode, hold down the Mode button for three seconds to disable PoE power supply and switch to switching
mode. The LED turns green to indicate switching mode. After power on, the system is powered by PoE power supply
by default.
Specifications
Model M7800C-48GT4XS-P-EA
CPU Quad-core CPU, each core with the clock speed of 1.0G
BOOTROM 8 MB
Flash Memory 512 MB
SDRAM DDRIII 1 GB
Status
Off
Solid red
Solid yellow
Blinking green
Solid green
Solid green
Solid yellow
Off
Solid green
Solid yellow
Blinking
Off
Solid green
Solid yellow
Off
Solid green
Blinking
to change the mode between switching and PoE. The green LED indicates switching mode
Meaning
The module is NOT receiving power.
The module is faulty.
High temperature alarm. The system keeps
operating but the performance is affected
Initialization is in progress. Continuous blinking
indicates errors.
The module is operational
Switching mode
PoE mode
The port link is NOT connected.
The port is connected at 1000Mpbs.
The port is connected at 10/100Mbps.
The port is transmitting and receiving data.
The port does NOT provide PoE power supply.
The port provides PoE power supply
The port is overloaded and short-circuited,
Power overload causes failure to provide PoE
power supply.
The port link is NOT connected.
The port is connected.
The port is transmitting and receiving data.