Viper SC+™ IP Router for Licensed Spectrum PN 001-5008-000 Rev. C
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APPENDIX E
– VIPER SC+™ SITE INSTALLATION AND SETUP GENERAL GUIDELINES
This appendix addresses best-practices instructions for installing and setting up Viper SC+ IP Routers.
There are three areas that need to be reviewed for each site to ensure that the Vipers will perform at a high level. If
these areas are properly inspected and any issues found corrected, then the Vipers will perform extremely well. It is
important to record the commissioning information to make future troubleshooting simple, even for individuals who
have little RF or data protocol knowledge or expertise.
These procedures assume that a basic system Viper configuration (router or bridge mode) has been decided upon by
the customer and is known to technical personnel commissioning the sites.
PHYSICAL INSTALLATIO N
1.
Viper power supply
a.
Ensure 60 watts for remote Vipers. 10 – 30 VDC, red and white are positive, black is negative.
b.
Ensure 90 watts for base station Vipers. 10 – 30 VDC, terminals are for positive and – for negative.
c.
Ensure a good connection. White must be tied (shorted) to + positive voltage if not using low-power feature.
d.
Watch the Viper’s LEDs to determine if the Viper is resetting when transmitting. This
may
be a sign of
inadequate power supply capacity or poor power regulation.
2.
Physical mounting
a.
Remote Vipers
.
i.
Remote Vipers should be mounted in a weather-tight housing. No ventilation is required. Radio operating
temperature range is -30° C to 60° C (-22° F to 140° F). When possible, a temperature-controlled
environment is recommended.
ii.
When mounting the Viper in a NEMA enclosure, care must be taken to mount the radio in such a way so
that the coaxial feedline cables are not kinked or have tight bends. Kinks or tight bends can cause SWR
issues and damage the cable.
b.
Viper base stations
i.
Rack-mount base stations should allow for easy access to the top and rear (when practical) for ease of
maintenance.
ii.
The base station should be mounted in such a way that prevents the feedline coaxial cable from kinking or
having tight bends in the cables. Kinks or tight bends can cause SWR issues and damage the cable.
3.
PolyPhaser® (lightning surge protection)
a.
It is extremely important to ensure that the correct type of lightning surge protector device is used. This will be
based on the type of antenna being used: grounded or not grounded. Although the antenna specification sheet
may indicate the antenna is grounded, this may not be completely true.
Please refer to Section 2.5 Selecting
Antenna and Lightning Arrestor combinations, earlier in this Viper SC+ User Manual for the recommended
combination of antenna and surge protection devices to use
. Failure to install the correct type of lightning
protection device may result in the failure of the Viper’s transmitter RF driver and final power devices.
b.
All lightning protection devices must be grounded in order for the device to provide protection for the
equipment. Please refer to the manufacturer’s recommended grounding instructions.
c.
For remote Vipers, ensure the device is installed correctly and securely to the housing unit. Water should not
be allowed in through this bulkhead mount.
