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Cisco 800 Series Routers Hardware Installation Guide
78-5373-04
Chapter 3 Troubleshooting
Problems After Router Is Running
• If the problem continues, call your
Cisco reseller.
Problems with ISDN or IDSL
link. (CH1, CH1 RXD, CH1
TXD, CH2, CH2 RXD, or
CH2 TXD are off.)
• A cable-related
problem:
–
Disconnected
cable.
–
Damaged
cable.
• Make sure the connectors at both ends
of each cable are securely connected.
• Make sure each cable is not physically
damaged. If one is damaged, replace it.
• Problem with ISDN
or IDSL line.
• Contact your telephone or Internet
service provider to determine if there is
a problem with your line.
Connection to an ISDN or
IDSL network is lost. (LINE,
CH1, CH1 RXD, CH1 TXD,
CH2, CH2 RXD, or CH2 TXD
LED is off.)
• A cable-related
problem:
–
Disconnected
cable.
–
Damaged
cable.
• Make sure the connectors at both ends
of each cable are securely connected.
• Make sure each cable is not physically
damaged. If one is damaged, replace it.
• Problem with ISDN
or IDSL line.
• Contact your telephone or Internet
service provider to determine if there is
a problem with your line.
• If the problem continues, call your
Cisco reseller.
Problems with link to digital
or analog telephone.
Symptoms include no dial
tone, a call that is abruptly
disconnected, and an incoming
call that does not cause the
device to ring.
• A cable-related
problem:
–
Disconnected
cable.
–
Damaged
cable.
• Make sure the connectors at both ends
of each cable are securely connected.
• Make sure each cable is not physically
damaged. If one is damaged, replace it.
• Problem with ISDN
line.
• Contact your telephone company to
determine if there is a problem with
your line.
• If the problem continues, call your
Cisco reseller.
Connection to digital
telephone is lost. (LINE, CH1,
CH1 RXD, CH1 TXD, CH2,
CH2 RXD, and CH2 TXD
LEDs on Cisco 801 and 803
routers are off.)
• A cable-related
problem:
–
Disconnected
cable.
–
Damaged
cable.
• Make sure the connectors at both ends
of each cable are securely connected.
• Make sure each cable is not physically
damaged. If one is damaged, replace it.
• Problem with ISDN
line.
• Contact your telephone company to
determine if there is a problem with
your line.
Table 3-3 Problems After Router Is Running (continued)
Symptom Problem Solutions