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A site survey is recommended to assess and qualify the site prior to installing a SWIFT network.
The site survey consists of a link quality test and RF scan test. After both tests are completed, the
results of the site survey can be obtained using SWIFT Tools. The information provided by SWIFT
Tools is used for site qualification, maximum device spacing identification, and configuring the
network. This helps to improve the reliability and performance of the wireless network in the wire-
less fire alarm system.
B.1 Conduct a Site Survey
B.1.1 Link Quality Test
A link quality test is a quick and repeatable test that provides immediate feedback on device con-
nectivity. The link quality test sends data from one device to another to test for data loss and mea-
sure the signal strength. In a link test, the device addresses are set in the range of 001 to 150. A
minimum of two devices are needed to conduct a link quality test.
A link test is conducted between two or more devices. The link test starts when a device that is in
the "pending site survey" state has its tamper condition cleared. The device will send a burst of data
to the next address lower than its own address. The lower addressed device will automatically
return the link quality test results for display using the device LEDs. For example, clearing the tam-
per condition on a detector set to address 2 (D002) will make the detector enter the link quality test.
D002 will send a burst of data to a device at address 001 (either detector or module). The device at
address 001 will measure the signal strength and count the data received in the burst and return the
information to D002. The results of the test will be displayed at D002. The test can be repeated by
tampering D002 to return it to the "pending site survey" mode and then clearing the tamper.
Basic Requirements of a Link Quality Test
To conduct a link test:
two or more devices (detectors) are required.
devices must be in factory default state. The LEDs on the device will blink single or double
red to confirm it is in the factory default state. Refer to Section 3.5.4 on page 38 for more
information on setting the device to factory default state.
device addresses can bet set in the range of 1 to 150.
Conduct a Link Quality Test
To conduct a link quality test:
1.
Remove the batteries from the devices that will be used for the site survey and set the SLC
address. To set an SLC address, use a common screwdriver to adjust the rotary switches on the
device.
a.
b.
2.
Bring the first device (001) to the first location to conduct the test.
3.
Insert one battery into the device. Inserting more than one battery deters the device from
entering the site survey mode. The device is ready for site survey mode if the LED blinks red
twice every 5 seconds.
4.
Clear the tamper condition to proceed with the test. To clear the tamper condition on a detector,
insert the detector into the base and twist to lock the detector completely into the base. To clear
the tamper condition on a module, attach the faceplate to the module. When the tamper is
cleared, the LEDs on the device starts blinking yellow every ½ second for approximately 20
SWIFT™ Smart Wireless Integrated Fire Technology Manual — P/N LS10036-000JC-E:C 5/8/2015
Appendix B: Site Survey
For the first device used in a site survey, set the SLC address to 001.
For each subsequent device, use the next highest SLC address (up to address 150). For
example, the first device was set to 001, set the second device to 002, and the third device
to 003, etc.
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