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Installation
2.1 Site Inspection and System Location
Consider the following requirements when planning system installation and choosing a location for the VS4810 and other
system components:
1. Choose a location that is easily accessible in case you need to perform maintenance on the antenna.
2. The transmitting antenna should be located as close as possible to the center of the site and should not be surrounded
by large metal objects that may block the RF signal and decrease the coverage range of the system.
3. The transmitting antenna may be mounted vertically upward, NEVER horizontally.
4. Magnetic Mount antenna (such as VS638) should be attached to a large metal object (like an air duct, metal shelf or
cabinet) to provide it with a proper grounding. It may be mounted vertically upward or downward.
5. Base Station antenna (such as included with VS654 kit) should be secured to a well-grounded metal structure or to a
pole on the roof.
Locate a path for running the coax cable between the antenna and the transmitter such as a riser (if there is no existing
path, create one).
Place the external transmitter in a location that is as close as possible to the roof such as in the penthouse. Keep the
distance between the antenna and the transmitter as short as possible to minimize RF power loss.
2.2 Magnetic Mount Antenna (VS638) Installation
1. Secure the antenna to an adequate grounding surface, HVAC duct or metal “I” beam. The antenna should be mounted vertically
upward or downward, NEVER horizontally.
2. Choose a mounting location that will provide an adequate grounding surface and free space for RF radiation. If the antenna is
mounted too close to metal or closed heavy concrete walls room, a high VSWR may occur which in the long term may cause
damage to the transmitter.
3. The optional wall-mount “L” bracket allows mounting the magnetic antenna on the side of a building or other structure, providing
the roof’s overhang is not excessive.
Note: The antenna should be located as far from the VS4810 and transmitter as the coax cable allows.
2.3 Base Station Outdoor Antenna Kit (VS654) Installation
1. To achieve maximum performance for your outdoor antenna choose a location that is unobstructed by trees, branches, power-
lines, etc. Never mount the antenna where there is a signal-reflecting surface such as metal, power lines, mirrored glass, etc.
2. Choose a location that is easily accessible in case you need to perform maintenance on the antenna.
3. For optimal performance, make sure the antenna is installed at an elevation that will provide sufficient clearance to allow your
antenna to radiate without interference.
4. It is recommended to mount the antenna where the path of the antenna cable is straight and as close as possible to the system
transmitter. Do not coil up 100 feet of coaxial cable when only 20 feet of cable is required. Use a RG-8U coax cable that is
specified as Low Loss to minimize power loss.
5. The antenna may be mounted vertically upward, NEVER horizontally.
6. Install the grounding kit provided with the VS654 antenna kit.
Note: The antenna should be located as far from the VS4810 and transmitter as the coax cable allows.
2.4 VS4810 Encoder and External Transmitter Installation
Install a UPS power backup to protect the system from power outages and surges. If you are using an external transmitter, place
the VS4810 next to it and use the data cable provided to connect VS4810 and the external transmitter. If required, the VS4810 can
be placed up to 200’ feet from the external transmitter assuming the proper data cable is used.
Once the transmitter and antenna are placed properly, connect them to the VS4810 and the transmitter as follows:
