Chapter 1: Product description
Wireless operation
Page 1-7
Wireless operation
This section describes how the PTP 550 wireless link is operated, including modulation modes,
power control and security.
Channel Bonding
PTP 550 features three radio interfaces – two radios are used for data transfer and one radio is
used for a real time spectrum analyzer and Dynamic Channel Selection (supported in a future
release).
The data transfer radios operate:
•
In the 5 GHz band
•
On separate, non-overlapping channels
•
With the same or different channel bandwidths. For example, one radio may operate
with a 20 MHz channel size and one radio may operate with an 80 MHz channel size.
The PTP 550 device automatically “bonds” the data traffic on the two radio interfaces to
support high data transfer rates.
Channel Bonding Use Cases
Channel bonding results in higher throughput rates and introduces opportunities for
customizing the PTP link to meet deployment requirements.
The following table provides examples of how the PTP 550 channel bonding may be utilized to
maximize network performance and resilience:
Table 2 Channel Bonding Use Case Examples
Channel 1
Channel 2
Scenario
Supported
Throughput
80
80
Two full clean channels
1.4 Gbps
40
80
Two clean channels
1.03 Gbps
40
40
Two clean channels
650 Mbps
80
20
One clean channel, one noisy channel
840 Mbps
20
40
One clean channel, one noisy channel
465 Mbps
20
20
Limited spectrum, Noisy environment
280 Mbps
