Motorola 5701BHDD - Canopy PTP 58100 Lite User Manual page 29

PTP Lightning Protection Unit
mounted on a tower or mast
with a PTP radio
pTp-LpU product Description continued
Installation with pTp 400 and pTp 600 Series Radios:
For the best possible protection, each PTP 400 and PTP 600 radio requires two Lightning Protection Units
(PTP-LPUs), one installed adjacent to the radio on the wall, tower or mast, and one installed at the cable
entry point of the building in which the network resides. The unit near the base of the wall or tower protects
the LAN network inside the building. The following are main installation configurations that can be deployed
with the Motorola PTP 400 and PTP 600 Series wireless Ethernet bridges:
• Tower/mast/wall configuration – uses two PTP-LPU units with each PTP 400 or PTP 600 radio
• Tower/mast/wall configuration with T1/E1 – uses two PTP-LPU units per radio and two additional
PTP-LPU units per T1/E1
• Tower/mast/wall configuration with a Memorylink UltraSync™ GPS-100M Synchronization Unit –
uses two PTP-LPU units per radio
• Tower/mast/wall configuration with T1/E1 and an UltraSync GPS-100M – uses two PTP-LPU units per
radio plus two additional PTP-LPU units per T1/E1
Installation with pTp 300 and pTp 500 Series Radios:
Because PTP 300 and PTP 500 radios have built-in lightning protection capability, there is no need to deploy
an external lightning protection device on a tower or wall adjacent to the radio. The lightning protection
built into the PTP 500 radio contains all the protection required at the top of the tower or wall. However, an
external PTP-LPU is required near the base of the tower or wall at the cable entrance point leading to the
network to protect the LAN equipment in the building. The Motorola PTP 300/500 LPU End Kit contains
one lightning protection unit for use as the external unit to be installed near the base of the tower or wall.
Together the lightning protection built into the PTP 500 radio and the external PTP-LPU offer excellent
protection from the harmful effects of lightning.
product Requirements:
• Maximum Cable Lengths
> Ground connection: < 2 ft (0.6 meters)
> Upper tower grounds: within 1 ft (0.3 meters) of the ODU bracket and on the same metal
• When connected to the back of an ODU, the minimum pole diameter required is 2.5 inches (6.35 cm)
• Grounding stake (included)
For detailed installation instructions, refer to the PTP-LPU User Manual.
9
PTP SOLUTIONS GUIDE
Note: Motorola strongly recommends purchasing
the Motorola PTP Lightning Protection Unit
(PTP-LPU) as an integral part of a PTP 300, 400, 500
or 600 Series link. While purchasing the Motorola
PTP Link Guard All Risk Extended Warranty will
cover the cost of replacing a radio damaged by
lightning, deploying lightning protection initially
will help the operator avoid the delays and costs
associated with taking down damaged radios
and installing replacement units. When correctly
installed, the Motorola PTP Lightning Protection
Unit gives the PTP radio the best protection from
the harmful effects of lightning. However, 100%
protection is neither implied nor possible.