24
MDS entraNET Start-Up Guide
05-4565A01, Rev. A
The most significant fields are
Retries
,
Retry Errors
,
Receive Errors
,
and
Lost Carrier Detected
.
If the data values are more than 10% of their
sent and received counterparts, or the
Lost Carrier Detected
value is
greater than a few dozen, there may be trouble with interference, or a
loss of the Ethernet signal. Note that this does not refer to the
over-the-air (RF) carrier, but only to the Ethernet carrier.
When troubleshooting throughput quality issues, a check should also
be made of the
Radio Packet Statistics Screen
shown in
Figure 8
. This
menu provides a review of packet statistics from a radio link (RF) per-
spective.
Figure 8. Radio Packet Statistics Screen
It is also helpful to check the RSSI of incoming signals. If the RSSI
levels in each zone are within a few decibels (dB) of each other, but
less than –90 dBm, then check the aiming of the antenna system.
See
“AIMING DIRECTIONAL ANTENNAS FOR MAXIMUM RSSI”
on Page 15
for details.
NOTE:
The average signal level should be –95 dBm or stronger for
reliable performance with an allowance for fade margin.
Summary of Contents for MDS entraNET Series
Page 31: ...Installation Guide...
