Page 2
First Release 6/17/99 Zahir Abji System Wiring section added and Halo Wiring Diagram corrected NOTICE: This equipment has been tested and found to comply with the limits of a 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.
Page 3
EXI. Although the Purchaser may have other rights, as they may vary from State to State or Province to Province, where it is legally possible to do so any statutory warranty is hereby expressly ex- cluded.
The function of the HALO system is to monitor areas within a building for the presence of HALO Tags. A Tag is sensed when it either enters an RF Field that is set up using the EXI HALO Controller (referred to as a Tag in Field or TIF), or when the Tag initiates an alarm signal (referred to as Tag Initi- ated Communications, or TIC).
The EXI HALO elements are designed such that many more than the RS-485 limit of 32 Drivers and 32 Receivers can be co-exist on the same network. The baud rate used in the HALO system is 57,600 bps, and therefore in order to avoid data corruption it is important to ensure that a clean signal is always present.
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.
Page 8
EXI HALO Installation Manual Rev 2.0 The field should not extend into other rooms or areas that are regularly occupied by tags. These tags could keep a controller in a pre-alarm state preventing the door from opening if magnetic door locks are being used.
EXI HALO Installation Manual Rev 2.0 area. The procedure to fully test the field is described in the “INSTALLING CONTROLLERS” sec- tion of this manual. Watch out for foil backed ceil- 2.4. KEYPAD OR PINPAD? ing tile. 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.
" S R A " E x c i t e r A n t e n n a Figure 6 - HALO Controller Typical Hook-up Diagram Assemble the controller pieces as illustrated in the above diagram. This is only a preliminary assembly in order to set up the field.
EXI HALO Installation Manual Rev 2.0 3.1.2. TEST CONTROLLER AND SET UP FIELDS After reading Section 3.2 on LOCATION FOR SEA EXCITER ANTENNAS, choose a suitable location for the SRA. Setting up a field is a matter of trial and error. The primary considerations here are the field shape and strength.
EXI HALO Installation Manual Rev 2.0 TROUBLESHOOTING: If the controller is having trouble detecting tags, try different positions for the RX antenna. Raising the detection THRESHOLD with the rotary switch on the far left of the controller circuit board can remove some of the background noise as well as reduce interference from Tags talking to nearby controllers.
Modes 1 and 2 will only allow Bypass when the field is clear of Tags and the user enters a se- quence of key presses on the DKX as described in the HALO Operation Manual. Keypads are for Article Surveillance and Patient Monitoring Modes 3 and 4. The Pinpad can be used with any of the Modes.
Page 14
EXI HALO Installation Manual Rev 2.0 With a HOST computer in the system, the recommended switch setting for the “Authorized Entry” mode is Option 0 (No Tags are authorized). “Patient Monitoring” or “Article Surveillance” modes should have Option 1 selected (All Tags will be stopped).
“Threshold” Switch Figure 10 – HALO Receiver Threshold and Operating Voltage Setting 3.3. TESTING TIC ALARM COVERAGE AROUND THE BUILDING With all devices installed at the location, ensure that a “TIC” can be detected from all remote corners and locations of the protected area.
Controller 2 Figure 11 – HALO Network with Host Computer For HALO systems that only require localized alarm and control, the Host Computer may not be re- uired. The Host Computer consists of a Pentium based computer with a 17”...
EXI HALO Installation Manual Rev 2.0 4. Weigand Output Specification Fields # of bits Even Parity bit (first)1 Parity bit + next 16 bits = 0 Control code used to distinguish message types Door bit 1 = Door open, 0 = Door closed...
Need help?
Do you have a question about the HALO and is the answer not in the manual?
Questions and answers