Encompass 4 Reader System Guide
1-6
gated toll, parking, or security gate access and is
designed to be compatible with exist-
ing TransCore SmartPass
®
parking access control applications certified for licensed
use. The Encompass 4 Reader System also supports the TransCore eGo and TransCore
ATA/ISO tag types, as well as the IAG tag protocol.
The Encompass 4 Reader System is a high-power unit that can read both half-frame
and full-frame tags.
The reader output power can be adjusted using reader commands.
Reader
The Encompass 4 Reader System consists of an input/output (I/O) module, a power
supply, a reader logic board (also called a tag decoder), a radio frequency (RF) trans-
mitter/receiver (called the RF module), and a patch
antenna.
A second version of the Encompass 4 Reader is designe
d to be used with a high-per-
formance external antenna.
These Encompass 4 Reader System components are con-
tained in a highly reliable, compact, and easy-t
o-install environmentally-sealed
package. Figure 1-1 shows the front and side views of an Enc
ompass 4 Reader Sys-
tem.
Figure 1-1 Encompass 4 Reader System Front and Side Views
Tags
The Encompass 4 Reader System has the capability to read TransCore SeGo protocol
tags, the Intellitag-based eGo protocol tags, TransCore ATA protocol, and TransCore
ISO-compliant read-only full- and half-frame tags, as well as IAG protocol tags.
How It Works
The Encompass 4 Reader System directs the RF module to generate an RF signal,
which is broadcast through the integrated or external antenna. Entering the Encompass
4 Reader System’s reading range, a TransCore RFID tag installed on a vehicle or other
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