AN-30e
user manual
70-00035-01
Proprietary Redline Communications © 2004
November
16,
2004
Page 26 of 103
Table 7: Ethernet Collision Diagnostics
Symptom
Possible Problem
Solution
Collisions are normal for Half Duplex
links. However, if the terminal is
connected to is not configured for auto-
negotiation, but manually set for Full
Duplex, the terminal is not able to
negotiate this mode and stays set to Half
Duplex. This results in CRC errors on the
network device port.
Change the
configuration from
hard coded Full
Duplex to auto-
negotiation
Link Collision
(
FD/Col
LED
flashes)
Incompatible Ethernet port speed.
Confirm speed and
duplex mode of
devices.
4.3.6 System
Section
This section describes other general features of the front panel.
System LEDs
The System LEDs indicate power supply status, system faults, and synchronization
status.
Figure 8: Front Panel: Reset Switch and System LEDs
Pwr LED
The Pwr LED lights solid green when the AC and/or DC power is properly applied to
the terminal. The Pwr light does not illuminate if there is an internal power supply
failure, if the power cables are disconnected, or the fuse is blown.
Table 8: System Power Diagnostics
Symptom
Possible Problem
Solution
On/Off switch in Off position Turn power switch on at back of
terminal.
Fuse blown
Replace fuse (spares are provided).
See section 7 for details.
Power cord disconnected
Securely connect cord to terminal and
outlet
Pwr LED does
not illuminate
One of the dual power
supplies is defective or
powered off (redundant
configuration).
Schedule maintenance to replace
defective power supply.
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