User's Manual

Table Of Contents
PMP 400/430 and PTP 200 Series Canopy User Guide
Supplement
Issue 4 0DRAFT 6 November 2009 Page 18 of 64
Name Model or Part Number Typically use with
C
A
P
5
8
4
3
0
C
S
M
5
8
4
3
0
C
A
P
5
4
4
0
0
C
S
M
5
4
4
0
0
P
T
P
5
4
2
0
0
C
A
P
4
9
4
0
0
C
S
M
4
9
4
0
0
P
T
P
4
9
2
0
0
4.9 GHz SM 56 VDC power supply AC cords
(also for isolated 5.8 and 4.9 GHz AP or BH)
SGKN4427A (US/Canada/Mexico)
SGKN4426A (Europe)
SGKN4425A (Australia)
SGKN4424A (China-Mainland)
SGKN4423A (Japan)
SGKN4422A (Korea)
SGKN4421A (United
Kingdom/Singapore)
SGKN4420A (India/Pakistan/South
Africa)
SGKN4419A (Argentina)
X
Surge suppressor (AP, SM, BH) 600SSC or 600SSD X X X X X X X X
Surge suppressor pole-mount kit
Refer to Figure 15 on page 21
SGHN5169A X X X X X
Radio mounting bracket SMMB2A X X X X X
2.1 TECHNOLOGY AND BENEFITS
The radio automatically selects QPSK (Quadrature Phase Shift Keying), 16-QAM (Quadrature
Amplitude Modulation), or 64-QAM based on RF environment to provide 1X, 2X, and 3X
operation, respectively. This provides 3 speeds and a throughput of over 20 Mbps aggregate
(sum of up plus down) compared to FSK Canopy products with 2 speeds and a throughput of up
to 14 Mbps.
The OFDM radios feature lower receive sensitivity, FEC (Forward Error Correction), and higher
antenna gain, all of which combine to provide longer range within regulatory-specified EIRP
(Equivalent Isotropic Radiated Power).
Details on performance are listed in Table 7 on page 26.
The PMP 400/430 and PTP 200 Series radios use an OFDM physical layer with 10 MHz channels
and 256 sub-carriers. Due to the different carrier and modulation schemes between these OFDM
radios and FSK Canopy radios, the two do not interoperate over the air. For example, a 5.4-GHz
OFDM SM cannot connect to a 5.4-GHz FSK AP.
2.1.1 nLOS Benefits and Limitations
In addition to providing LOS (Line-of-Sight) connectivity, use of OFDM technology can provide
nLOS (near Line-of-Sight) connectivity and sometimes NLOS (Non-Line-of-Sight) connectivity:
LOS: the installer can see the AP from the SM and the first Fresnel zone is clear.