IES-1248-71/73 User’s Guide
425
C
H A P T E R
58
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.
58.1 The SYS or PWR LED Does Not Turn On
The SYS/PWR LED does not turn on.
58.2 The ALM LED Is On
The
ALM
(alarm) LED lights when the IES-1248 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 103
SYS LED Troubleshooting
STEP
CORRECTIVE ACTION
1
(IES-1248-71 DC power version, IES-1248-73) 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
).
(IES-1248-71 AC power version) Make sure the power cord is properly connecting the
device’s power socket to an appropriate power outlet. Make sure you are using the
correct power source (see
2
For DC power versions, make sure the power wires are connected properly.
3
(IES-1248-71 AC power version) Make sure the fuse is not burnt-out. Replace the fuse if
it is burnt out. See
4
The LED itself or the unit may be faulty; contact your vendor.
Table 104
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 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.
3
Make sure you can feel and/or hear the fans working - working fans emit a low buzz and
blow air.
4
If the voltage levels are outside the allowed range, take a screen shot of the statistics
monitor command display and contact your vendor.
Содержание IES-1248-71
Страница 1: ...www zyxel com IES 1248 71 73 ADSL2 IP DSLAM User s Guide Version 3 52 LS 0 TR 0 9 2006 Edition 2 ...
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Страница 8: ...Safety Warnings IES 1248 71 73 User s Guide 8 ...
Страница 38: ...List of Tables IES 1248 71 73 User s Guide 38 ...
Страница 40: ...40 ...
Страница 51: ...Chapter 2 Hardware Installation IES 1248 71 73 User s Guide 51 Figure 6 IES 1248 Frame Ground Frame Ground ...
Страница 52: ...Chapter 2 Hardware Installation IES 1248 71 73 User s Guide 52 ...
Страница 60: ...Chapter 3 Front Panel Connections IES 1248 71 73 User s Guide 60 ...
Страница 68: ...Chapter 4 MDF Connections IES 1248 71 73 User s Guide 68 ...
Страница 74: ...74 ...
Страница 81: ...Chapter 7 Introducing the Web Configurator IES 1248 71 73 User s Guide 81 Figure 30 Logout ...
Страница 82: ...Chapter 7 Introducing the Web Configurator IES 1248 71 73 User s Guide 82 ...
Страница 110: ...Chapter 12 User Account IES 1248 71 73 User s Guide 110 ...
Страница 116: ...Chapter 13 Switch Setup IES 1248 71 73 User s Guide 116 ...
Страница 118: ...Chapter 14 IP Setup IES 1248 71 73 User s Guide 118 ...
Страница 150: ...Chapter 17 xDSL Profiles Setup IES 1248 71 73 User s Guide 150 ...
Страница 158: ...158 ...
Страница 166: ...Chapter 19 VLAN IES 1248 71 73 User s Guide 166 ...
Страница 184: ...Chapter 22 Multicast VLAN IES 1248 71 73 User s Guide 184 ...
Страница 216: ...Chapter 30 2684 Routed Mode IES 1248 71 73 User s Guide 216 ...
Страница 222: ...Chapter 31 PPPoA to PPPoE IES 1248 71 73 User s Guide 222 ...
Страница 226: ...Chapter 32 DSCP IES 1248 71 73 User s Guide 226 ...
Страница 240: ...Chapter 36 Syslog IES 1248 71 73 User s Guide 240 ...
Страница 248: ...Chapter 37 Access Control IES 1248 71 73 User s Guide 248 ...
Страница 250: ...250 ...
Страница 259: ...Chapter 39 Alarm IES 1248 71 73 User s Guide 259 ...
Страница 260: ...Chapter 39 Alarm IES 1248 71 73 User s Guide 260 ...
Страница 276: ...276 ...
Страница 296: ...Chapter 44 Commands IES 1248 71 73 User s Guide 296 ...
Страница 304: ...Chapter 45 Command Examples IES 1248 71 73 User s Guide 304 ...
Страница 320: ...Chapter 47 DHCP Commands IES 1248 71 73 User s Guide 320 ...
Страница 328: ...Chapter 48 IEEE 802 1Q Tagged VLAN Commands IES 1248 71 73 User s Guide 328 ...
Страница 334: ...Chapter 49 MAC Commands IES 1248 71 73 User s Guide 334 ...
Страница 348: ...Chapter 50 IGMP Commands IES 1248 71 73 User s Guide 348 ...
Страница 352: ...Chapter 51 Packet Filter Commands IES 1248 71 73 User s Guide 352 ...
Страница 362: ...Chapter 53 Firmware and Configuration File Maintenance IES 1248 71 73 User s Guide 362 ...
Страница 394: ...Chapter 55 ADSL Commands IES 1248 71 73 User s Guide 394 ...
Страница 418: ...Chapter 56 Virtual Channel Management IES 1248 71 73 User s Guide 418 ...
Страница 424: ...Chapter 57 ACL Commands IES 1248 71 73 User s Guide 424 ...
Страница 436: ...Chapter 58 Troubleshooting IES 1248 71 73 User s Guide 436 ...
Страница 437: ...437 PART VI Appendices and Index Product Specifications 439 Legal Information 449 Index 457 ...
Страница 438: ...438 ...
Страница 448: ...Appendix B Removing and Installing a Fuse IES 1248 71 73 User s Guide 448 ...
Страница 452: ...Appendix C Legal Information IES 1248 71 73 User s Guide 452 ...
Страница 464: ...Index IES 1248 71 73 User s Guide 464 ...