5
Pre-Installation Testing
Once you have developed the site plan and frequency plan, you are ready to
install the reader and perform pre-installation testing of Encompass 4 Reader
output power and tag read capability. The
Encompass® 4 Reader System Guide
discusses pre-installation testing in detail.
Bench Testing the Reader
To bench test your reader you need an
audible circuit tester
, a compatible
power/communications cable
, and a
PC
. A laptop using a terminal emulation
program such as Microsoft HyperTerminal can be used for
most diagnostic test and reader command entry.
The Encompass 4 Reader uses a single 26-pin (13
twisted pair) round Souriau connector to interface to all
external components. Power, I/O interface, and
communications signals are transmitted through this
cable. The reader cable is directly connected to external
devices or may be routed to other components via an external junction box.
1. Connect all hardware as directed below.
A. Connect the power wires from the cable to the transformer using
the color coding as described below. (Do not apply power to
transformer at this time.)
Power Connections
Colored-Wire Pair
Use These Colors
Connect to
Transformer Terminal
Strip
Brown/Red
Orange and Brown
L1 (16 to 20V AC)
Orange/Red
Red and Red
L2 (16 to 20V AC)
The Encompass 4 Reader system is powered by an 18V AC transformer.
Normally, one 10 amp circuit will be sufficient for powering the reader and all
associated electronics.
B. For the Encompass 4 that requires an external antenna, you
must next connect the external antenna using an N-type
connector. THE EXTERNAL ANTENNA MUST BE
CONNECTED before powering up the external antenna-series
readers.
C. Connect the red and white leads from the audible tester to the
red and white pair of wires from the power/communications
cable.
D. Connect the appropriate communications wires from the cable
to an appropriate connector.
Refer to Correct Reader Grounding on page 9 when connecting power and
communications.
