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Installation Guide: 601, 602, and 604 Routers
Diagnostics Tips
The information in the following tables may help to isolate or resolve certain system
problems.
General Symptoms
The following table provides general diagnostics information that applies the OmniAccess 601,
OmniAccess 602, and OmniAccess 604 router.
Table 17 Common Symptoms and Actions
Symptom
Cause
Action
Power LED does not
illuminate with power
applied.
No power is applied.
1 Verify that the AC power cord is functional.
2 Make sure the power supply is working properly.
3 Verify that the DC power cord is functional.
Power LED is illuminated
green, but the terminal or
workstation connected to the
system Console port does
not display a CLI command
prompt or other text.
The connecting terminal
is faulty or not
configured properly, the
interface cable is faulty,
or the system Console
port is faulty.
1 Verify that the interface cable is connected to the
console port and that the cable is properly assembled.
See Table 24 on page 63 for information about the
console cable.
2 Make sure the terminal is powered up.
Ethernet LINK/ACT LED is
not illuminated or flashing.
The Ethernet LAN is not
active or the LAN cable
is faulty.
1 Make sure the Ethernet LAN cable is properly
connected between the hub or switch and the Alcatel
OmniAccess 601, OmniAccess 602, and OmniAccess
604 router.
2 If you are using a non-Alcatel LAN cable, refer to
Table 25 on page 63 to check the cable pinouts.
3 Make sure both the router and the adjacent LAN nodes
are powered on.
Ping test fails.
The Ethernet LAN is not
working, the destination
host is not responding,
or the LAN cable(s) are
faulty.
1 Make sure the Ethernet LAN cable is properly
connected between the hub or switch and the Alcatel
router.
2 Make sure cables are properly connected between the
service provider’s switch, hub, or LAN and the Alcatel
router.
3 If you are using a non-Alcatel LAN cable, refer to
Table 25 on page 63 to check the cable pinouts.
4 Verify that the LAN is properly configured at the
command line. Also, check IP addresses, subnetting,
and routing configurations.
5 Use the
show arp
command for target addresses.
6 If excessive collisions exist on the LAN, switch to a
less congested LAN segment.
WAN Status LED is not
illuminated.
The link is not in service Enable the link using the appropriate derivative of the
configure module t1 enable
command.
WAN Status LED is red.
The link is faulty. (The
system has detected an
abnormal incoming
signal.)
If a LOS (loss of signal) alarm is present:
1 Check the WAN cable connections to the system. If you
are using non-Alcatel cable(s), see Cable Pinouts on
page 63 for more information.
2 If the cable is good, perform a BERT test on the link.
3 If the BERT test passes, check the WAN link between
the two ends with external test equipment. If the link is
good, the Alcatel router is faulty.
