Service manual

134 Cyclades ACS 5000 Advanced Console Server Command Reference Guide
NOTE: The Ethernet error mentioned in the previous table occurs automatically if the Fast Ethernet link is not
connected to an external hub during the boot. If the Fast Ethernet is not being used or is connected later, this
error may be ignored.
Rear panel LEDs
The console server rear panel has serial, console and ethernet connectors with LEDs that have the
following functionality.
Ethernet connector
• Col (collision) - Shows collision on the LAN every time the unit tries to transmit an
Ethernet packet.
• DT/LK (data transaction/link state) - DT flashes when there is data transmitted to or received
from the LAN. It is hardware-controlled. LK keeps steady if the LAN is active. The green LED
is Data Transaction activity and the yellow LED is LinK state.
• 100 - If 100BT is detected the LED lights on. If 10BT is detected it turns off.
Console connector
• CP - CPU activity. It flashes at roughly 1 second intervals.
• P1 - Power supply #1 ON.
• P2 - Power supply #2 ON.
NOTE: P1 and P2 LEDs are available only on dual power supply models.
Serial connector
• LK - DTR. It's software-controlled.
• DT - Data transmitted to or received from the serial line. It's hardware-controlled.
Flash Memory Error - Configuration S, L
Ethernet Error S, S, L
Network Boot Error S, S, S, S, L
Real-Time Clock Error S, S, S, S, S, L
Table B.1: CPU LED Code Interpretation (Continued)
Event CPU LED Morse code