Installation Manual
EXI HALO Installation Manual Rev 2.0
EXI Wireless Systems Inc. Page 7 June, 1999
2.2. CONTROLLER CONFIGURATIONS
The HALO controller handles all communication with the Tags, provides audible and visual indicators
of what state its in and prevents egress when necessary. The controller chassis may be horizontally or
vertically mounted, on a wall, ceiling or shelf and should be mounted so that the front face panel is
easily accessible. Since it is preferable to leave the RX antenna attached directly to the controller, the
exact location of the controller will affect the reception of the tags and should only be finalized after
setting up the field. This device is fully capable of operating in stand-alone mode although it does pro-
vide for communication to several different types of central reporting systems. The front panel provides
easy access to a number of different output formats as well as allowing inputs to alter some of its
automatic functions as necessary. Local alarm and bypass annunciation is available through several dif-
ferent user interface devices. These devices are discussed in more detail in Section 2.4 KEYPAD OR
PINPAD?
The Tag serial numbers as well as status information is output in Weigand format on 2 of the output
pins. This is a standard format used by many Card Access Systems. The MagOut line will engage a
Magnetic Door Lock when Tag’s are detected in the field. Due to NFPA 101 regulations being
adopted in many locations, it may be mandatory to provide an automatic door release with 15 seconds
after a door has been locked up. The controller provides 2 Form-C dry contacts rated at 2 Amps @
30VDC. They switch ON to indicate the 2 different alarm conditions – Tag In Field (TIF) and Tag
Initiated Communication (TIC). These Relays can be used to turn on remote signaling devices such as:
- Nurse Call system annunciators (should have latching function)
- EXI model “SSM” 2-zone audible alarm with selectable tone sequences
- EXI model “ANN-6L” Audible-Visual 6-zone, LED type non-supervised
Annunciator
- EXI model “APEX”, supervised Annunciator system through inputs of
an APEX I/O-8
Contact EXI for more information on each of the above systems and wiring diagrams for many differ-
ent situations.
The Door Switch is used by the HALO controller to disable alarm reporting when the door is closed.
This is known as the Nurse Saver Feature. Although Tags are still detected and reported to a central
system, no alarms are annunciated until the door opens. At that time, all the Tags are re-read by the
controller so that only the Tags that are still in the field will cause an alarm. The door switch is also
useful during bypass as the controller will detect the door opening and then terminate the bypass as
soon as the door closes.
A remote system or switches can use three input lines to alter the normal operation of the controller.
Unlock In provides a temporary release of the door. Alarm in will cause an immediate lockup of the
door with the local and remote alarm annunciators on. Override In will disable the controller so that
no tags are read and nothing will be reported to the Host computer. Shorting the appropriate line to
ground will activate the function.
Please refer to the HALO Controller Operation Manual for a more detailed description of the con-
troller functions.
2.3. LOCATION FOR SRA EXCITER ANTENNAS
The most important aspect of the entire installation is the correct positioning of the SRA Exciter An-
tenna. Take note of the following:
- Ensure that no tag can reach the protected area without passing through a field.