AI3050S Sargas AEI Reader
1
March 25, 2018
1. BRIEF OVERVIEW
The AI3050S reader system was developed to provide an easy solution for installing an AEI
reader beside a track. The AI3050S AEI Reader houses a Sargas AEI Reader in a
weatherproof enclosure. This enclosure contains a 120 VAC to 12 VDC and a 120 VAC to 5
VDC power supplies.
The Sargas reader has a network interface and is capable of multiplexing between two
antennas (one on each side of track). It also has two digital inputs.
The 120 VAC to 5 VDC power supply is used to supply power to the Sargas reader. The 120
VAC to 12 VDC power supply can be used to supply power to external sensors such as a
presence detector or switch (turnout) position monitor.
2. EQUIPMENT INSTALLATION
2.1. Antenna Installation
One or two external antennas can be connected to the AI3050S reader. Normally two
antennas are connected and are mounted on poles on opposite sides of the track. They can
be mounted across from each other (+/- 5 feet) and 11 feet from the center of the rail. The
center of each reader antenna should be 3 ½ feet above the top of the rail. The antennas
should be pointing toward the track.
Please note for train speeds less than 25 mph there is a great deal of tolerance in the
placement of the antennas. They can be mounted vertically from one foot to 6 feet above the
top of the rail and can be positioned 8 to 12 feet from the center of the rail.
A conduit should be placed under the rail for the coaxial cable running from the controller to
the antenna on the opposite side of the track.
2.2. Reader Installation
There are five main components in the AI3050S reader’s enclosure. These are:
Sargas AEI RF Reader
Ethernet Terminal Block
Sensor Terminal Block
12 VDC Power Supply
5 VDC Power Supply
Figure 1 shows the layout of the components.
