Chapter 2: System hardware
102
Note
These figures should be indicative only rather than hard limits. The measurement
must be done with a low-voltage DMM, not a high-voltage insulation tester.
Lig ht ning p ro t ect io n unit (LPU) and g ro und ing kit
450i and 450m Series LPUs provide transient voltage surge suppression for ODU installations. Each cable
requires two LPUs, one near the ODU and the other near the linked device, usually at the building entry
point (LPU and grounding kit contents).
Table 76 :LPU and grounding kit contents
Lightning protection units (LPUs)
LPU grounding point nuts and washers
ODU to top LPU drop cable (600 mm)
EMC strain relief cable glands
U-bolts, nuts and washers for mounting LPUs
ODU to top LPU ground cable (M6-M6)
Bottom LPU ground cable (M6-M10)
ODU to ground cable (M6-M10
Содержание PMP 450 AP
Страница 92: ...Chapter 2 System hardware 92 Figure 29 MicroPoP Omni antenna implementation pattern Vertical ...
Страница 134: ...Chapter 3 System planning 134 Figure 51 Mast or tower installation ...
Страница 135: ...Chapter 3 System planning 135 Figure 52 Wall installation ...
Страница 136: ...Chapter 3 System planning 136 Figure 53 Roof installation ...
Страница 137: ...Chapter 3 System planning 137 Figure 54 GPS receiver wall installation ...
Страница 158: ...Chapter 3 System planning 158 Figure 61 cnMedusa Antenna ...
Страница 258: ...Chapter 5 Installation 258 Figure 123 Yagi antenna alignment horizontally Figure 124 Yagi antenna alignment upward tilt ...