Encompass 4 Reader System Guide
9-6
a
Use this number to reference the problem you are having with the Encompass 4 Reader if you contact
Transcore for Technical Support.
8 When connected to a PC
that is running terminal
communications software, a
just-powered up Encompass
4 Reader displays one of the
following messages:
#Model E4 Series X.XX
SNYYYYYY
#[Copyright notice]
The Encompass 4 Reader works. The software is now loaded.
YYYYYY is the TransCore-assigned serial number for this
Encompass 4 Reader. However, if YYYYYY = 000000, a serial
number has never been assigned. If a serial number has not
been assigned to your Encompass 4 Reader, contact
TransCore Technical Support.
9 The read zone is too small,
even before the RF power
and range control have been
adjusted.
If another Encompass 4 Reader is in the same area, ensure
that it is operating on another frequency that is at least 2 MHz
different.
Check for possible interference from another nearby RF
source: fluorescent lights, neon signs, high voltage power
lines, nearby cellular telephone, or radio stations. Lights will
need to be removed or shielded. Point the Encompass 4
Reader or external antenna in a different direction to see if
interference comes from only one direction. You may require a
different Encompass 4 Reader that uses another frequency.
Verify that the RF power is set to an appropriate value.
Verify that the range adjustment is set to the maximum.
Verify that the reader is getting at least 16V.
10 The perimeter of the read
zone has been defined, but
there is a “hollow” spot in the
center of the zone that does
not read tags.
The angle of the Encompass 4 Reader or external antenna
may need adjustment. Slightly tilt the Encompass 4 Reader or
external antenna to a different angle to change either the
length or width of the read zone.
Check the range control adjustment. See “Radio Frequency”
on page 8-15.
11 The Encompass 4 Reader is
reading tags out of the
desired read zone, or cross-
lane reads are occurring.
Some interference from other RF or electrical sources may be
occurring. See
“Reflection, Refraction, and Diffraction of RF
Signals” on page 2-16.
Verify that the read zone has been properly set up. See “Fine-
Tuning and Verifying the Read Zone” on page 8-19.
12 The Encompass 4 Reader is
not providing any output to
the Wiegand interface.
Ensure that the Encompass 4 Reader is in Wiegand mode
(#451). The default is either RS
–232 or RS–422 mode. Refer
to
“Wiegand Interface” on page 4-33.
Ensure the tags are properly programmed with Wiegand data.
Table 9-2 Symptoms and Remedies (continued)
Symptom
Number
a
Symptom Remedy
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