3 Getting Started 
 
25
3 Getting Started 
3.1  For Your Safety  
WARNING: Use extreme care when installing antennas near power lines.  
WARNING: Use extreme care when working at heights.  
WARNING: The Outdoor Unit (ODU) for the PTP 500 Series Bridge must be properly 
grounded to protect against lightning. In the USA and Canada it is the user’s responsibility to 
install the equipment in accordance with Section 810 of the National Electric Code, 
ANSI/NFPA No.70-1984 or Section 54 of the Canadian Electrical Code. These codes 
describe correct installation procedures for grounding the outdoor unit, mast, lead-in wire and 
discharge unit, size of grounding conductors and connection requirements for grounding 
electrodes. Other regulations may apply in different countries and therefore it is 
recommended that installation of the outdoor unit be contracted to a professional installer.  
WARNING: The ODU for the PTP 500 Series Bridge must be grounded to a Protective Earth 
in accordance with the Local Electrical Regulations. 
WARNING: It is recommended that the supplied Power Indoor Plus (PIDU Plus) – PTP 
300/500/600 Series is used to power the PTP 500 Series Bridge ODU. The use of other 
power sources may invalidate safety approval and affect your warranty. 
WARNING: When using alternative DC supplies (via the PIDU Plus DC in terminals as 
described in Section 3.3.3 “Redundancy and Alternative Powering Configurations”), such as 
battery-backed DC power source, the supply MUST comply with the following requirements: 
•  The voltage and polarity is correct and is applied to the correct terminals in the PIDU Plus 
•  The power source is rated as SELV 
•  The power source is rated to supply at least 1A continuously 
•  The power source cannot provide more than the Energy Hazard Limit as defined by 
IEC/EN/UL6090, Clause 2.5, Limited Power (The Energy Hazard Limit is 240VA) 
WARNING: Users and installers should note that the main power supply is the primary 
disconnect device.  
WARNING: Safety will be compromised if external quality cables are not used for 
connections that will be exposed to the weather.  
WARNING: Safety will be compromised if a different power supply is used than the one 
supplied by Motorola as part of the system.