Installing the Encompass 4 Reader
4-13
2. Connect the red wire (CTS) from the yellow and red wire pair to pin 7 of the DB9
con
nector or pin 4 of the DB25 connector.
Connecting for Bench Testing with RS–422 Interface
RS–422 interface signals are supplied by four wires from the Encompass 4 Reader
communications cable. Your host must have an RS
–422 interface with either an inter-
nal or external converter.
Note: Fo
r temporary bench testing purposes only, you will need to connect the RS–
422 interface signal wires by following the pin-outs of your interface device. For per-
manent installations, follow the RS–422 connection ins
tructions on page 4-32.
Bench Testing the Encompass 4 Reader Before
Installation
The Encompass 4 Reader is set to read the tag protocol(s) programmed into your
reader.
Note: T
est tags should match the protocol(s) selected for your reader. These tags can
be ATA-protocol, ISO-compliant tags, or Inter-Agency Group tags affixed to a plastic
or wooden yardstick, or eGo Plus Sticker Tag or eGo Windshield Sticker Tags (WSTs)
affixed to a piece of nonmetallic windshield-type glass 0.190 to 0.230 in (4.82 to 5.84
mm) in thickness. The eGo and eGo Plus sticker tags have a reduced read range when
not attached to glass.
To test that the Encompass 4 Reader has power and can read a tag pre-
sented in the read zone
1. Confirm that the Encompass 4 Reader colored-wire pair cable is corre
ctly
connected to a suitable AC or DC low-voltage power supply as discussed on page
4-9 and page 4-10 and that the transformer is connect
ed to a power outlet.
If you are using an external antenna, confirm that the
antenna is connected to the
Encompass 4 Reader.
Caution
To avoid damage to the Encompass 4 Reader
, you must connect the antenna before
applying power to the reader.
2. Confirm that the Encompass 4 Reader colored-wire pair cable communications
are connec
ted correctly as described in the section “Connecting Communications
for Bench Testing” on page 4-10.
3. Connect the two leads from the audible circuit tester to
the white and red wire
pair (pair #8, lock/lock return) from the Encompass 4 Reader power/
communications cable.
4. Start the terminal emulation applicatio
n Microsoft HyperTerminal by selecting
Programs>Accessories>Communications>HyperTerminal and press
ENTER.
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