Cambium Networks PMP 450d Series, Руководство пользователя

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Chapter 1: Product description Overview of the 450 Platform Family
Page 1-4
PMP/PTP 450i Series
The PMP/PTP 450i Series is a high performance wireless bridge for Ethernet traffic. It is capable of
operating in line-of-sight (LOS), near-LOS and non-LOS propagation conditions. It supports 900
MHz and 4.9 to 5.925 GHz frequency band.
Key features
The PMP/PTP 450i Series has extensive quality of service (QoS) involving traffic classification,
traffic policy and shaping capability.
The Cambium PMP/PTP 450i Series offers the following benefits:

Cambium’s high performing point-to-multipoint solution, with up to 230 Mbps (30 MHz
Channel Bandwidth and 5 ms Frame Period) usable throughput for PMP and PTP

State-of-the-art MIMO (Multi In Multi Out) technology

Upto 7.5 bps/Hz spectral efficiency

Increased Packet Processing rate

Efficient GPS synchronized, scheduled TDD operation for easy AP/BHM site deployment and
performance that is consistent regardless of SM/BHS loading

A range of cost-effective subscriber device solutions to meet the business case of any network
application

MIMO B Mode: This technique provides for the ability to double the throughput of a radio
transmission under proper RF conditions. Different data streams are transmitted
simultaneously on two different antennas

MIMO-A mode: This mode of operation has same modulation levels as the MIMO-B mode,
namely: QPSK, 16-QAM, 64-QAM and 256-QAM. This mode increases system reliability in the
links.

Timing synchronization via CMM4 or uGPS
Table 3 gives a summary of the main PMP/PTP 450i Series characteristics.
Table 3 Main characteristics of the PMP/PTP 450i Series
Characteristic Value
Topology PMP/PTP
Wireless link condition LOS, near LOS or non-LOS
Range PTP Up to 186 mi (or 299 km) depending on configuration for
all bands
PMP: Up to 40 mi (or 64 km) for 5 GHz band
PMP: Up to 120 mi (or 193 km) for 900 MHz band
Duplexing TDD (symmetric and asymmetric)
Connectivity 1000Base-T Ethernet Main port with PoE input
Operating frequencies 902 to 928 MHz