NEXUS CALL SYSTEM
by Rondish
P13
1.3 Site Testing
Conducting a site survey can help you determine how many signal repeaters are needed for your facility,
and ideal locations for them to be installed. Two pieces of equipment are available from Rondish for
measuring effective range on site.
Due to the long-distance signaling between ZP-01(S) to ZP-01(M), and ability to hop between repeater
units, the main limitation on a site survey is the distance from the call points and sensory devices to the
nearest ZP-01(S).
For this we offer NGM-21T handheld testers with a range equivalent to -3dBm, as is recommended by UL
guidance. To perform a survey, use the tester to receive and alarms and reset at the locations you propose
to install the ZP-01(S) repeater units and test at the extremes of that particular zone. If your calling device
can be received by the tester at the proposed install location, you can be confident that it will reliably
work when a more sensitive ZP-01(S) is used for the actual installation.
For smaller facilities the ILB-21 Over-Door Lights can serve as the repeaters
–
the TTEST-01 can be used
for surveying these sites if necessary.
Model
Description
Image
NGM-21T
Pegasus Monitor
•
Use for testing signal reliability into ZP-01(S)
TTEST-01
Tag Tester
•
Audio headphones can detect transmissions and
interference on 433.92MHz that may affect the
reception of alarm signals
•
Check call points and sensory devices are
transmitting - shows the ID of the unit transmitting
•
Use for testing signal reliability into ILB-21
The free space distance from devices is around,
Alarm Device
Range to ZP-01(S)
… to NGM
-21T
… to ILB
-21
… to
TTEST-01
TXP-11(V2)
120m
90m
WCP-11
180m
120m
70m
55m
NGM-21
120m
90m
