
PTP 250 User Guide
Cabling and lightning protection
phn-2182_002v000
May 2011
1-13
Cabling and lightning protection
This section describes the cabling and lightning protection components of PTP 250
installations.
PTP and lightning protection
The PoE power supply meets the low level static discharge specifications identified in
Electromagnetic compatibility (EMC) compliance
on page
4-22
but does not provide
lightning or surge suppression.
The amount of lightning protection is dependent on regulatory and end user
requirements. The standard ODU is fitted with surge limiting circuits and other
features to minimize the risk of damage due to nearby lightning strikes. To be fully
effective, these standard features require some additional equipment to be configured
as part of the system installation.
WARNING
The units are not designed to survive direct lightning strike. For this reason
they must not be installed in ‘Zone A’, as defined in
Lightning protection
zones
on page
2-11
. Mounting in Zone A may put equipment, structures and
life at risk.
Outdoor connections
The term ‘drop cable’ refers to the cable that is used for all connections that terminate
outside the building, for example, connections between the ODU, LPU and PoE power
supply.
CAUTION
For outdoor connections, always use Cat5e cable that is gel-filled and
shielded with copper-plated steel. This is the only type of outdoor drop cable
supported in this application.
Содержание Motorola PTP 250
Страница 20: ...List of Tables phn 2182_002v000 xiv May 2011 ...
Страница 30: ......
Страница 80: ...Data network planning Chapter 2 Planning considerations phn 2182_002v000 2 22 May 2011 ...
Страница 126: ...Notifications Chapter 4 Reference information phn 2182_002v000 4 36 May 2011 ...
Страница 192: ...Connecting link to the network Chapter 6 Configuration and alignment phn 2182_002v000 6 36 May 2011 ...
Страница 234: ...Testing the radio link Chapter 8 Troubleshooting phn 2182_002v000 8 14 May 2011 ...