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9-31
D-620003-0-20 Rev J
CONFIDENTIAL
Troubleshooting CAT-5/5E/6
9.4
Troubleshooting CAT-5/5E/6
Refer to Table A-1 on page A-1 for a description of the
CAT
-5/5E/6 wire assignment.
The following table summarizes
CAT
-5/5E/6 problems if a wire is cut or not wired
properly.
Table 9-14
Summary of Cat-5/5E/6 Cable Wiring Problems
Type of
problem
Message
Icon
Icon*
Impact
Wire 1 or 2 cut
None
High phase noise, degraded signal on both
Downlink and Uplink (high bit error rate)
Wire 3 or 6 cut
• No communication with RAU
n
RAU unable to communicate with EH,
decreased UL gain, or no UL gain
Wire 4 or 5 cut
• Port
n
UL RF path loss is too high
Increased ripple in the uplink path,
decreased UL gain, or no UL gain
• Port
n
UL RF path loss is higher
than recommended
Wire 7 or 8 cut
• The DL RF path loss is too high
Increased ripple in the downlink path,
RAU off-line
• The DL RF path loss is higher than
recommended
Wire 1 to RJ-45
pin 3 or 6
• No communication with RAU
n
RAU unable to communicate with EH,
RAU’s RS-485 port damaged, degraded
performance or RAU off-line
Wire 1 to RJ-45
pin 4, 5, 7 or 8
• RAU
n
over current
RAU will not power on.
Wire 2 to RJ-45
pin 3 or 6
• No communication with RAU
n
RAU unable to communicate with EH,
RAU’s RS-485 port damaged, degraded
performance or RAU off-line
Wire 2 to RJ-45
pin 4, 5, 7 or 8
• RAU
n
over current
RAU will not power on
Wire 3 to RJ-45
pin 4, 5, 7 or 8
• No communication with RAU
n
RAU unable to communicate with EH,
degraded performance or RAU off-line
Wire 6 to RJ-45
pin 4, 5, 7 or 8
• No communication with RAU
n
RAU unable to communicate with EH,
degraded performance or RAU off-line
Wire 4 to RJ-45
pin 7 or 8
• Port
n
UL RF path loss is too high
Increased ripple in the downlink and
uplink path, degraded performance or
RAU off-line
• Port
n
UL RF path loss is higher
than recommended
• The DL RF path loss is too high
• The DL RF path loss is higher than
recommended
