Motorola PTP 600 series User Manual page 489

User Guide: PTP 600 Series
Attribute
Link Loss
Transmit Data
Rate
Receive Data Rate
Link Capacity
phn-0896_012v000
Jul 2010
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The link loss is the total attenuation of the wireless signal
between the two point-to-point units. See
page 7-21. The link loss calculation presented below:
= − + +
P P P g g
ll T R T R
x x x
Where:
P
= Link Loss (dB)
ll
P
T = Transmit power of the remote wireless unit (dBm)
x
P
= Received signal power at the local unit (dBm)
R
x
g , g
T R = Antenna gain at the remote and local units
x x
respectively (dBi). The antenna gain of the PTP 600
Series (23.5 dBi) is used unless one or both of the units
is a Connectorized version.
For connectorized ODUs, the link loss calculation is modified
to allow for the increased antenna gains at each end of the
link.
The data rate in the transmit direction, expressed in Mbps
and presented as: max, mean, min, and latest in an histogram
format. The max, min and latest are true instantaneous
measurements; the mean is the mean of a set of one second
means. Expected data rates can be found in
calculations on page 4-114.
The data rate in the receive direction, expressed in Mbps and
presented as: max, mean, min, and latest in an histogram
format. The max, min and latest are true instantaneous
measurements; the mean is the mean of a set of one second
means. Expected data rates can be found in
calculations on page 4-114.
The maximum aggregate data rate capacity available for user
traffic, assuming the units have been connected using Gigabit
Ethernet. The link capacity is variable and depends on the
prevailing wireless conditions as well as the distance (range)
between the two wireless units.
Web-based management
Meaning
Histogram data
x
Data rate
Data rate
on
7-17