Installation Manual

EXI HALO Installation Manual Rev 2.0
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EXI Wireless Systems Inc. Page 9 June, 1999
area. The procedure to fully test the field is described in the “INSTALLING CONTROLLERS” sec-
tion of this manual.
2.4. KEYPAD OR PINPAD?
Each of the user interface devices provide local audible and visual alarm and bypass indication as well
as a means for the user to input requests to the system. If a staff member needs to be able to inititiate a
bypass function from either side of the door, there will have to be two user interface devices of the
same type installed. The type of device to select is dependent upon the situation and the user require-
ments.
KEYPAD – different codes for bypass and reset – everybody uses the same codes
PINPAD – different codes for bypass and reset – everybody has their own codes
2.5. LOCATING THE RECEIVER ANTENNA
The area to be protected has to be blanketed by controllers and receivers so that all critical areas have
coverage. Elevator Interfaces cannot be included in the area calculations since the elevator is not al-
ways on the floor. Walls, equipment and excess metal could affect the pickup range. Although greater
distances are possible, a maximum of 50’between devices is recommended.
It is essential that the RX antennas have no metal barriers blocking the signals from the Tags although
some metal objects may enhance communication by reflecting the signal further than it would normally
transmit. Wire glass sometimes found around nurseries can cut down the range. The only way to be
sure of adequate coverage is by testing the results. After all devices are installed and operational, en-
sure that the entire area has coverage. Experience will shorten this process as the installer learns what
site conditions cause problems.
One of the issues to think about is the storage and handling of the tags when not on the patients. Tags
that are not on a “body” or stored in a proper container are periodically transmitting TIC alarms. Un-
necessary alarms can occur while cleaning Tags and when transferring a Tag to or from a patient. The
Host computer software allows the staff to put the Tag into a special status so that it will ignore all
TIC alarms coming from that Tag. However, any equipment driven by the relay outputs of the devices
will still be triggered and the staff also has to remember to put the Tag back into active status when
done. It is best to avoid the problem if at all possible.
Cleaning of the Tags could be done in a room that is outside the range of any devices. The staff may
prefer to bring a patient to a particular room to put on a Tag and then remove the Tag at the door as
they walk the patient out. The site administration people should be consulted about these issues prior
to installing the system
Watch out for foil backed ceil-
ing tile.