To secure data and prevent damage to the device, it is recommended to use high-quality flash disks produced by
reliable manufacturers. The USB port is compatible with most USB controllers but may be unable to identify some
USB disk models.
Console port: As a serial communications port, it uses the RS-232 interface level and standard RJ-45 connector.
This port is used to connect the device to serial ports of background terminal computers to perform tasks including
system commissioning, configuration, maintenance, management, and host software loading.
10/100/1000M MGMT port: As the 10/100/1000BASE-T Ethernet port, it uses the RJ-45 connector. This port can be
used to connect the device to the Ethernet port of the background computer to load programs. Use the standard
cable to connect the device to the Ethernet port of the background computer.
Button
The M7800C-CM module provides a Reset button, which is used to reset the system. If the button is held for less than five
seconds, it is a short press; if the button is held for five seconds or longer, it is a long press.
In case of a short press, the Status LED flashes in green, and the device resets within five seconds after the press. In
case of a long press, the Status LED flashes in green and then flashes in red; the device resets within five seconds
after the press.
Press the button, and the system starts to collect information, during which the device will not restart. After the
collection is complete, the device restarts automatically. Hold the button for a while and release it, the device restarts
automatically in five seconds.
LED
LED
System LED
Primary/standby supervisor
module LED
Fault alarm LED
Fan status LED
Power status LED
MGMT port status LED
Specifications
Model
CPU
BOOTROM
Flash Memory
SDRAM
External Port
Identification
Status
on the panel
Off
Solid red
Status
Blinking green
Solid green
Off
Primary
Solid green
Off
Solid red
Alarm
Solid yellow
Solid green
FAN
Solid yellow
Solid red
PWR
Off
Solid green
Solid red
MGMT
Off
Green
Yellow
Blinking
M7800C-16SFP8XS-EA
Quad-core CPU, each core with the clock speed of 1.0G
8 MB
512 MB
DDRIII 1 GB
16 SFP ports,
8 SFP+ ports
Meaning
The module is NOT receiving power.
The module is faulty.
Initialization is in progress. Continuous blinking indicates
errors.
The module is operational.
The module acts as the standby supervisor module.
The module acts as the primary supervisor module.
No fault
The system fails, interrupting functioning of the whole
system or a module; the device may be damaged if it
continues operating.
The device overheats, which will affect the system
performance. The system may continue operating.
The fan is operational.
The fan is NOT in the position.
The fan is faulty.
The power supply module is NOT in the position.
The power supply module is operational.
The power supply module is faulty.
The MGMT port is NOT connected.
The MGMT port is connected at 1000Mbps.
The MGMT port is connected at 10/100Mbps.
The MGMT port is transmitting or receiving data.
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