General Considerations
34
5 General Considerations
5.1
Spectrum Planning
The PTP 500 Series Bridge has four frequency variants in its product range.
Band
Definition
Frequency
Coverage
Variable Channel
Width
Channel
Raster
5.4 GHz
ETSI 5 GHz band B, USA UNII
Band
5470-5725 MHz
15 MHz
5 MHz
5.8 GHz
USA ISM Band / ETSI 5 GHz
band C
5725-5850 MHz
15 MHz
5 MHz
Table 5
PTP 500 Series Bridge Variants
Note:
for 5.4 GHz and 5.8 GHz, use of the product is allowed according to local regulations.
There are two distinct approaches to spectrum planning:
•
First an operator can utilize the default spectrum management mode i-DFS (intelligent Dy-
namic Frequency Selection). This mode uses the PTP 500 Series Bridge ability to measure the
interference levels in all channels to build up a picture of the interference / noise levels in all
channels. The PTP 500 Series Bridge uses statistical techniques to select the most appropri-
ate transmit and receive channels. i-DFS can be influenced in its channel decision process by
selectively barring channels from use. The use of this functionality is described in detail in
“Spectrum Management”.
•
Second, when detailed control of the spectrum allocation is required, it is recommended that
the fixed frequency mode is used to statically allocate transmit and receive channels.
Содержание MOTOWI 4
Страница 1: ...PTP 500 Series User Guide phn 1115 000v001 ...
Страница 74: ...Web Page Reference 74 Figure 37 Save Configuration File Screen ...
Страница 100: ...Web Page Reference 100 Figure 59 Spectrum Management as seen from the Master ...
Страница 108: ...Web Page Reference 108 Figure 66 Spectrum Management Master Screen With Operational Restrictions ...
Страница 112: ...Web Page Reference 112 Figure 68 Remote Management ...
Страница 165: ...Data Rate Calculations 165 Figure 112 QPSK 0 50 Single Payload Figure 113 QPSK 0 75 Single Payload ...
Страница 166: ...Data Rate Calculations 166 Figure 114 16 QAM 0 50 Single Payload Figure 115 16 QAM 0 75 Single Payload ...
Страница 167: ...Data Rate Calculations 167 Figure 116 64 QAM 0 67 Single Payload Figure 117 64 QAM 0 83 Single Payload ...
Страница 168: ...Data Rate Calculations 168 Figure 118 256 QAM 0 75 Single Payload Figure 119 QPSK 0 50 Dual Payload ...
Страница 169: ...Data Rate Calculations 169 Figure 120 QPSK 0 75 Dual Payload Figure 121 16 QAM 0 50 Dual Payload ...
Страница 170: ...Data Rate Calculations 170 Figure 122 16 QAM 0 75 Dual Payload Figure 123 64 QAM 0 67 Dual Payload ...
Страница 171: ...Data Rate Calculations 171 Figure 124 64 QAM 0 83 Dual Payload Figure 125 256 QAM 0 75 Dual Payload ...
Страница 197: ...Glossary 197 UTP Unshielded Twisted Pair VLAN Virtual Local Area Network ...
