10/100/1000BASE-T Port LEDs
The following table describes 10/100/1000BASE-T port LEDs (items 1 and 2 in Figure 2).
C1048P 10/100/1000BASE-T Port LEDs
LED
Description
Link
Link speed on port
• Off: No link is up.
• Solid green: The port is operating at 1000 Mbps.
• Solid yellow: The port is operating at 10/100 Mbps.
Activity
Data transmission on port
• Off: No transmit/receive activity and PoE power is off.
• Flashing green: The port is actively transmitting/receiving and PoE power is
off.
• Flashing yellow: The port is actively transmitting/receiving and PoE power is
on.
• Solid yellow: No transmit/receive activity and PoE power is on.
System LEDs
The following table describes the system LEDs on the C1048P front panel (items 3 to 11 in Figure 2).
C1048P System LEDs
LED
Description
PE ID | Stack
When the C1048P is online and connected to a C9010, a scrolling port-
extender ID (PE ID) from 0 to 255 displays in the left, seven-segment LED. A
fixed stack-unit ID number from 0 to 7 displays in the right LED. If the C1048P
is not connected to a C9010, the PE ID LED is blank. For more information, see
Pre-provisioning a Port Extender
.
NOTE: The PE ID number displays as a scrolling three-digit number. Each
digit displays briefly followed by a dash ( - ) before the next digit displays.
A blank displays before the three-digit number repeats in the display. For
example, the PE ID 175 displays 1, -, 7,-, 5, followed by a blank before the
PE ID number repeats. Similarly, the PE ID 7 displays as 007: 0, -, 0, -, 7,
followed by a blank.
Temperature
Temperature status
• Solid green: Normal operation; the temperature is below the minor
threshold of 140°F (C60°C).
• Solid red: Warning condition; the temperature exceeds the major threshold
of 167°F (75°C).
Power/Locator
Internal power status
• Solid green: Normal operation
• Blinking green: The PE locator is enabled.
C1048P Hardware Description
7
