User's Manual

EAC Transceiver: Installation Guide
981-000046-000R1.00
3
TUNING & ADJUSTMENT
An eXI RF Test Tag is used for adjustment of the Receiver Threshold and LF
Field Strength
NETWORK STATUS
Refer to eAC HUB network installation instructions for network cabling requirements.
NETWORK STATUS INDICATOR LED CONDITION
OFF No power to Receiver
Solid GREEN Power supplied; Network normal
Flashing GREEN Power supplied: Network Communication Failure
RECEIVER SENSITIVITY
The UHF Threshold control may be adjusted to increase or reduce the range of detection of the UHF
transmission of the Tags. Threshold adjustment removes some of the background noise, and reduces
interference from Tags not within the field of the Transceiver.
Initially decrease the threshold (CCW) until the UHF RX indicator flashes occasionally. This will establish a
threshold sensitivity to background noise at the door site. Using the RF Test Tag in the keyed mode,
reduce the receiver sensitivity (increase threshold CW) until the RX indicator becomes intermittent at 25
to 30 feet. Reduce the threshold slightly and walk the tag around the area of coverage to check for
consistent UHF reception.
LF FIELD ADJUSTMENT
Adjust the LF Field for a compromise between maximum desired tag detection range and the potential to
excite tags in adjacent rooms or floors. Note that the LF field tends to be omni-directional. Starting with
the field adjustment at maximum (full CW), walk the RF Test Tag around the area of desired protection.
Reduce the field until inconsistent tag identification occurs in parts of the coverage. (The UHF Threshold
adjustment should be increased to check that the eLink is not being limited by the UHF link.) Increase
the field strength in small increments until consistent detection results within the desired area of
detection.
FCC Regulations
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) This device must accept any interference
received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for Class B Digital Device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures.
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and Receiver
• Connect the equipment into an outlet on a circuit different from that to which the Receiver is
connected
• Consult the dealer or an experienced radio/TV technician for help
Any changes or modifications not expressly approved by the party responsible for compliance could void
the user’s authority to operate the equipment.