Troubleshooting For Ip8800/S6700, Ip8800/S6600, And Ip8800/S6300; Troubleshooting Procedure On System Failures - NEC IP8800/S2400 Series Troubleshooting Manual

2.
Troubleshooting System Failures
2.1 Troubleshooting for IP8800/S6700, IP8800/S6600,
and IP8800/S6300
2.1.1

Troubleshooting Procedure on System Failures

Follow the procedure below when the system failed.
Table 2-1: Troubleshooting System Failures
No.
1
• Fume generated from the system
• Unusual odor occurs from the system
• Unusual sound occurs from the system
2 login prompt is not displayed
3 All LEDs on BCU/MSU are OFF
4 BCU/CSU/MSU SYSTEM1 LED lit in red or
orange
12
Failure
Execute the steps below immediately.
1. Power off the system.
2. When the power cable is fastened by the slip-off preventive clamp,
3. For AC power supply, unplug the power cable.
4. For DC power supply, turn off the breaker of power distribution panel
Shut down operation as described above and then contact the local sales
office.
1. When MC is inserted, first remove the MC then reboot the system by
2. When MC is not inserted, reboot the system by turning it off and on.
3. If the same problem still persists after system reboot, replace BCU/CSU/
1. Check LED on the power supply and follow the steps below.
2. If all power supplies are running normally, replace BCU/CSU/MSU.
1. If an error message is output to the system operation panel, take the
2. If no error message is output, replace BCU, BSU, CSU, MSU or NIF on
Action
remove it from the power cable.
connected to the system.
turning it off and on.
MSU.
(1) If ALARM LED is lit in red on the power supply, replace the power
supply with a new one.
(2) If both POWER LED and ALARM LED are OFF on the power
supply, implement "Table 2-2: Power Failure Check
problem is not settled, replace the power supply with LED turned off.
action against the corresponding error message in manual "Message Log
Reference."
which STATUS LED is lit in red.
Items." If the