Wireless Access System Testing

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Wireless Access System Testing
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System Design Guidelines

• For ease of design, think the 200 coverage
  radius as a Cell, 275x275 (75,625 sq ft)
• Lay the square cells directly onto a floor plan
  to determine the number of PIMs required
• Determine best locations for the PIMs, and adjust
  squares accordingly
• Test Proposed System Layout (Use TK797
  Pre-Installation test kit)

200
275
275
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System Design
200
275
275
275
550
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PIM Placement Guidelines

• Place in a secure, central location
• Try to co-locate with the Access Control Panel
• Remote PIM within 500 for PIM-TD2s, PIM-TD4s
• Remote PIM within 4000 for PIM-485s
• Avoid close metal objects
• Mount at least 6 feet high
• Consider proximity to access control interface
• Locate the PIM within 200 of the Wireless
  product
• Do not design multiple floors to work off one PIM

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• Bring to following to ensure optimal PIM
  placement
• TK797 Pre-installation Test Kit
• Extension cord
• Blue painters tape
• Make it even more portable by using a 9-volt
  battery, a battery clip from Radio Shack, and a
  2-pin terminal block.
• Position the PIM-T tester in the exact location
  you plan to install the actual PIM.
• Orient the PIM as shown in the picture to the
  right.
• Tape it in place.
• Apply power.
• Press the SA button to put the PIM-T in test
  mode.
• Go to a door you want to test for that PIM and
  place the handheld tester above the lever on the
  inside (secure side) of the door.
• With the door closed, press the Tester button and
  observe the LED and count the number of RED
  blinks. If you get more than 5 red blinks,
  reposition the PIM-T and retest.
• Repeat step 4 with the Tester in the same
  position above the lever, but with the door
  propped open.
• Repeat step 4 with the Tester in the same
  position above the lever, but with the door
  swinging slowly opened and closed.
• Go to the next door for that PIM and start at
  step 3.
• Note If you have to move the PIM you must retest
  all the doors.

Pre-installation TestingUsing the TK797
Pre-installation Test Kit, perform these 7 steps
for each Wireless door
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If you continue to have problems,verify if
there are any barriers.

• Shielded walls
• Metal lathe
• Elevator shafts
• Metal staircases
• Ventilation rooms and shafts

• Massive metal objects
• Metal clad walls
• Metal floor pans if trying to span floors
• Metal lockers
• Other 900 MHz equipment on site

• Other options
• Try an actual PIM and select a different channel.
• Position the PIM to avoid obstructions and
  retest.
• This may mean putting the PIM in a hallway.
• Add a PIM
• Large obstacles cast a shadow, or void in RF
  coverage, which can only be overcome by a PIM on
  either side of the obstacle.

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