IES-1248-51V User’s Guide
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C
H A P T E R
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Troubleshooting
This chapter covers potential problems and possible remedies. After each problem
description, some steps are provided to help you to diagnose and solve the
problem.
70.1 The SYS or PWR LED Does Not Turn On
The SYS/PWR LED does not turn on.
70.2 The ALM LED Is On
The ALM (alarm) LED lights when the IES-1248-51V is overheated, the fans are
not working properly, the voltage readings are outside the tolerance levels or an
alarm has been detected on the ALARM input pins.
Table 216
SYS LED Troubleshooting
STEP
CORRECTIVE ACTION
1
Make sure the power wires are properly connected to the power supply and
the power supply is operating normally. Make sure you are using the correct
power source (see
).
2
Make sure the power wires are connected properly.
3
Make sure a fuse is not burnt-out. Replace a fuse if it is burnt-out. See
for instructions.
4
The LED itself or the unit may be faulty; contact your vendor.
Table 217
ALM LED Troubleshooting
STEP
CORRECTIVE ACTION
1
Use the statistics monitor command to verify the cause of the alarm. See step
2 if the unit is overheated, step 3 if the problem is with the fans and step 4 if
the voltages are out of the allowed ranges.
2
Ensure that the IES-1248-51V is installed in a well-ventilated area and that
normal operation of the fans is not inhibited. Keep the bottom, top and all
sides clear of obstructions and away from the exhaust of other equipment.
Содержание IES-1248-51A
Страница 2: ......
Страница 8: ...Safety Warnings IES 1248 51V User s Guide 8...
Страница 11: ...Contents Overview IES 1248 51V User s Guide 11 Appendices and Index 593...
Страница 12: ...Contents Overview IES 1248 51V User s Guide 12...
Страница 32: ...Table of Contents IES 1248 51V User s Guide 32...
Страница 34: ...34...
Страница 46: ...Chapter 1 Introducing the IES 1248 51V IES 1248 51V User s Guide 46...
Страница 52: ...Chapter 2 Hardware Installation IES 1248 51V User s Guide 52...
Страница 60: ...Chapter 3 Front Panel Connections IES 1248 51V User s Guide 60...
Страница 64: ...Chapter 4 MDF Connections IES 1248 51V User s Guide 64...
Страница 66: ...Chapter 5 Power Connections IES 1248 51V User s Guide 66...
Страница 70: ...70...
Страница 88: ...Chapter 8 Tutorials IES 1248 51V User s Guide 88...
Страница 96: ...Chapter 9 Home and Port Statistics Screens IES 1248 51V User s Guide 96...
Страница 116: ...Chapter 14 IP Setup IES 1248 51V User s Guide 116...
Страница 138: ...Chapter 16 xDSL Port Setup IES 1248 51V User s Guide 138...
Страница 162: ...162...
Страница 186: ...Chapter 20 IGMP IES 1248 51V User s Guide 186...
Страница 198: ...Chapter 23 Packet Filtering IES 1248 51V User s Guide 198...
Страница 208: ...Chapter 25 Spanning Tree Protocol IES 1248 51V User s Guide 208...
Страница 214: ...Chapter 26 Port Authentication IES 1248 51V User s Guide 214...
Страница 222: ...Chapter 28 DHCP Relay IES 1248 51V User s Guide 222...
Страница 228: ...Chapter 29 DHCP Snoop IES 1248 51V User s Guide 228...
Страница 246: ...Chapter 32 DSCP IES 1248 51V User s Guide 246...
Страница 258: ...Chapter 34 ACL IES 1248 51V User s Guide 258...
Страница 262: ...Chapter 36 Syslog IES 1248 51V User s Guide 262...
Страница 272: ...Chapter 37 Access Control IES 1248 51V User s Guide 272...
Страница 300: ...Chapter 40 Maximum MTU Size IES 1248 51V User s Guide 300...
Страница 306: ...306...
Страница 354: ...Chapter 47 Diagnostic IES 1248 51V User s Guide 354...
Страница 358: ...Chapter 48 MAC Table IES 1248 51V User s Guide 358...
Страница 362: ...362...
Страница 376: ...Chapter 51 Common Commands IES 1248 51V User s Guide 376...
Страница 392: ...Chapter 53 Alarm Commands IES 1248 51V User s Guide 392...
Страница 404: ...Chapter 54 DHCP Commands IES 1248 51V User s Guide 404...
Страница 408: ...Chapter 55 OUI Filter IES 1248 51V User s Guide 408...
Страница 418: ...Chapter 56 IEEE 802 1Q Tagged VLAN and Isolation Commands IES 1248 51V User s Guide 418...
Страница 423: ...Chapter 57 MAC Commands IES 1248 51V User s Guide 423...
Страница 424: ...Chapter 57 MAC Commands IES 1248 51V User s Guide 424...
Страница 436: ...Chapter 58 IGMP Commands IES 1248 51V User s Guide 436...
Страница 440: ...Chapter 59 Packet Filter Commands IES 1248 51V User s Guide 440...
Страница 446: ...Chapter 60 Switch and Statistics Commands IES 1248 51V User s Guide 446...
Страница 510: ...Chapter 64 ADSL Commands IES 1248 51V User s Guide 510...
Страница 514: ...Chapter 65 G Bond IES 1248 51V User s Guide 514...
Страница 536: ...Chapter 67 ACL Commands IES 1248 51V User s Guide 536 The following is a list of the ACL commands...
Страница 540: ...Chapter 67 ACL Commands IES 1248 51V User s Guide 540...
Страница 555: ...Chapter 68 VoIP Commands IES 1248 51V User s Guide 555...
Страница 578: ...Chapter 70 Troubleshooting IES 1248 51V User s Guide 578...
Страница 593: ...593 PART VI Appendices and Index Changing a Fuse 595 Index 645...
Страница 594: ...594...
Страница 596: ...Appendix A Changing a Fuse IES 1248 51V User s Guide 596...
Страница 644: ...Appendix B PSTN Parameters by Country IES 1248 51V User s Guide 644...
Страница 654: ...Index IES 1248 51V User s Guide 654...