User's Guide
K60 User Guide
802.3bt). Port two is for Gigabit Ethernet network connectivity and provides PoE power
output (up to 30W/802.3at). 38W PoE input power would be required to satisfy the
maximum 8W power consumption of the K60 plus support the maximum delivered PoE
output power (802.3at/30W delivered on port two).
5 System Throughput
The K60 system uses time division duplexing (TDD) access mode, employing a single
frequency for both transmit and receive paths. The throughput for the downlink and uplink
depends on a downlink-to-uplink frame bandwidth ratio. The ratio is automatically
adjusted based on the offered load in each direction, taking into account all Remotes
connected to a Hub in PtMP. Furthermore, the system’s throughput depends on the
Modulation and Coding Rate (MCS) which varies according to link and signal conditions. The
following table details Ethernet uplink and downlink combined throughput for a K60 link.
Table 8: Throughput Performance for Cyclic Prefix of 1/8
MCS Index
Modulation
NCBPS
Repetitions
Code Rate
Data Rate
(Mbit/s)
1
π/2 BPSK
1
2
1/2
310
2
π/2 BPSK
1
1
1/2
620
3
π/2 BPSK
1
1
5/8
775
4
π/2 BPSK
1
1
3/4
930
5
π/2 BPSK
1
1
13/16
1007
6
π/2 QPSK
2
1
1/2
1240
7
π/2 QPSK
2
1
5/8
1550
8
π/2 QPSK
2
1
3/4
1860
6 Element and Network Management
The K60 system supports the following network management interfaces:
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