Motorola PTP 300 - Manual (Page 27)

PTP SOLUTIONS GUIDE 7
pTp 600 Series Bridges –
Aggregate Ethernet Throughput Rates
1 Aggregate data rate in IP Traffic mode (running at maximum throughput) for a 1 km link length
2 Thresholds for modes other than BPSK are for IP Traffic link-optimization AMOD thresholds. When operating in TDM mode with
wayside T1/E1 enabled, thresholds are reduced by 2-3 dB.
3 The output power shown is for a center channel in Region 1. The output power will be reduced on the edge channels and may vary if
different region codes are selected.
4 The maximum link loss for each modulation mode is derived from the AMOD threshold for that mode and the maximum Region 1
center channel output power. The figures assume integral antennas with 23.5 dBi gain are used.
Table 3: 5.8 and 5.4 GHz pTp 600 Series and pTp 600 Series Lite Bridges
Modulation Mode – Maximum Aggregate Threshold Output Maximum
payload Type Data Rate 1 Value  power 3 Link Loss 4
(Mbps) (dBm) (dBm) (dB)
150 Mbps 300 Mbps
256QAM 0.81 dual 150.1 300.2 -59.1 +18 124.1
64QAM 0.92 dual 126.5 252.9 -62.0 +18 127.0
64QAM 0.75 dual 103.4 206.7 -68.1 +18 133.1
16QAM 0.87 dual 80.4 160.8 -71.0 +20 138.0
16QAM 0.63 dual 57.8 115.6 -75.2 +22 144.2
16QAM 0.63 single 28.9 57.8 -79.3 +22 148.3
QPSK 0.87 20.1 40.2 -81.6 +23 151.6
QPSK 0.63 14.5 28.9 -84.6 +24 155.6
BPSK 0.63 7.2 14.4 -88.1 +25 160.1
256QAM 0.81 single 75.1 150.1 -64.0 +18 129.0
64QAM 0.92 single 63.2 126.4 -65.9 +18 130.9
64QAM 0.75 single 51.7 103.3 -71.7 +18 136.7
16QAM 0.87 single 40.2 80.4 -74.8 +20 141.8
The equipment capability of the PTP 600 Series system is given in Table 3. It gives the Ethernet throughput
rate versus link loss for the 5.8 and 5.4 GHz PTP 600 Series and PTP 600 Series Lite bridges in all modes.
Adaptive modulation ensures that the highest throughput that can be achieved instantaneously will be
obtained taking propagation and interference into account. When the link has been installed, the Status
Page on the management interface provides information about the link loss currently measured by the
equipment both instantaneously and averaged. The averaged value will require maximum seasonal fading to
be added, and then the radio reliability of the link can be computed..