cnReach N500 User Guide
InstallationSafety
phn-4673_002v000 (March 2018)
5-2
Powering down before servicing
Before servicing cnReach equipment, always switch off the power supply or remove the power plug
from the radio thereby removing the power source.
Primary disconnect device
The power supply connection on the front of the cnReach module is the primary disconnect device.
Most installations will also have an additional circuit breaker or isolation switch supplying power to the
cabinet in which the cnReach module is mounted..
RF exposure near the antenna
Strong radio frequency (RF) fields will be present close to the antenna when the transmitter is on.
Always turn off the power to the ODU before undertaking maintenance activities in front of the antenna.
Minimum separation distances
Ensure that personnel are not exposed to unsafe levels of RF energy. The units start to radiate RF
energy as soon as they are powered up. Never work in front of the antenna when the radio module is
powered. Install the modules so as to provide and maintain the minimum separation distances from all
persons. For minimum separation distances, see Calculated distances on page 6-15.
Grounding and lightning protection requirements
Warning
Electro-magnetic discharge (lightning) damage is not covered under warranty. The
recommendations in this guide, when followed correctly, give the user the best protection
from the harmful effects of EMD. However 100% protection is neither implied nor possible.
Structures, equipment and people must be protected against power surges (typically caused by
lightning) by conducting the surge current to ground via a separate preferential solid path. The actual
degree of protection required depends on local conditions and applicable local regulations. To
adequately protect a cnReach installation, both ground bonding and transient voltage surge
suppression are required.
Full details of lightning protection methods and requirements can be found in the international
standards IEC 61024-1 and IEC 61312-1, the U.S. National Electric Code ANSI/NFPA No. 70-1984 or
section 54 of the Canadian Electric Code.
Summary of Contents for cnReach N500
Page 1: ...User Guide cnReach N500 System Release 01 30 900 MHz 700 MHz 450 MHz 220 MHz ...
Page 17: ...Chapter 1 Product Description cnReach N500 Radio Module ...
Page 70: ...cnReach N500 User Guide System Configuration phn 4673_003v000 November 2018 2 38 ...
Page 77: ...cnReach N500 User Guide System Configuration phn 4673_003v000 November 2018 2 45 ...
Page 82: ...cnReach N500 User Guide System Configuration phn 4673_003v000 November 2018 2 50 ...
Page 117: ...cnReach N500 User Guide Technical Reference phn 4673_002v000 March 2018 3 5 ...
Page 122: ...cnReach N500 User Guide Technical Reference phn 4673_002v000 March 2018 3 10 ...
Page 148: ...cnReach N500 User Guide Technical Reference phn 4673_002v000 March 2018 3 36 ...
Page 155: ...cnReach N500 User Guide Technical Reference phn 4673_002v000 March 2018 3 43 ...