User guide
Canopy System User Guide Network Components
pmp-0229 (Mar 2013)
41
PTP 200 Series Bridges
The PTP 200 Series bridges securely transport data, voice, and
video in both near-line-of-sight (nLOS) and line-of-sight (LOS)
deployments at Ethernet data rates up to 21 Mbps. In the 4.9-GHz
range, the public safety area of the spectrum, these bridges are a
point-to-point solution for emergency services. In 5.4 GHz, they are
a solution for enterprises. Orthogonal Frequency Division
Multiplexing (OFDM) technology resists multi-path interference
and fading that is otherwise caused by buildings and other
obstructions.
Interference avoidance capability is ensured. The Dynamic
Frequency Selection (DFS) feature switches channels to avoid
interfering with priority signals. Moreover, these bridges can be co-
located within the physical scope of an existing network, or used as
part of a 5.4-GHz frequency band overlay network.
Figure 7: 21-Mbps bridge
These bridges are supported by this user guide. See Realizing a Wireless Ethernet Bridge
Network on Page 33.
PTP 300 Series Bridges
PTP 300 Series wireless Ethernet bridges offer reliable and cost-effective backhaul at rates up to
25 Mbps for distances up to 155 miles (250 km) or, when enabled by a special license key, up to
50 Mbps in LOS deployments for distances up to 10 miles (16 km).
These bridges operate in the 5.4- or 5.8-GHz frequency band range. The form for these bridges is
shown in Figure 8. These bridges are supported by their own dedicated user guide.
PTP 400 Series Bridges
PTP 400 Series wireless Ethernet bridges offer reliable non-
line-of-sight (NLoS) or long-distance line of sight (LoS)
connection to the other bridge in the pair. Their features include
adaptive modulation, intelligent Dynamic Frequency Selection,
and a preset that denies connection to any unit other than the
one in its pair. These are available as full (43-Mbps) or lite (21-
Mbps) bridges.
Either variety is a solution for any of the following field
applications:
• backhaul pair for PMP networks
• campus connection between buildings
Figure 8: PTP 300/400/500/600
Series Bridge common form