ZFR1800 Series Wireless Field Bus System Technical Bulletin16
Guidelines for Locating ZFR1800 Series System Components
Use information in this section to determine the optimum location for the
ZFR1810 Coordinator, ZFR1811 Routers, and WRZ Sensors in your ZFR1800
Series system applications and to estimate the number of additional repeaters
required.
• ZFR1811 Router locations are determined by the locations of the equipment
that are being controlled, the locations of the associated field controllers and
WRZ sensors, the physical characteristics of the applications space, and the
obstructions in the application space.
• Every WRZ Sensor should be within 15 m (50 ft) (recommended) of at least
two ZFR1811 Routers. (WRZ Sensors communicate only with routers.)
• Every ZFR1811 Router should be within 15 m (50 ft) (recommended) of at
least two other ZFR1811 Routers.
• The ZFR1810 Coordinator should be within 15 m (50 ft) (recommended) of at
least two ZFR1811 Routers.
• The ZFR1810 Coordinator should be at the center of the mesh network.
• The maximum distance between the ZFR1810 Coordinator and the farthest
ZFR1811 Router should be less than 76.2 m (250 ft).
Wireless Signal Transmission Range
The effective transmission range/distance for indoor applications varies because of
wireless signal absorption and reflection due to metal obstructions, walls (or
floors), and furniture found in typical building interiors.
Transmission ranges between ZFR1800 Series products can be less than the
maximum distances shown in Table 3.
IMPORTANT: If any WRZ Sensor, ZFR1811 Router, or ZFR1810
Coordinator is not within 15 m (50 ft) (recommended) of at least two other
ZFR1811 Routers, then use ZFR1811 Routers and ZFRRPT Repeater
accessories to function as repeaters to provide multiple wireless data pathways.
Table 2: Indoor Line-of-Sight Transmission Ranges
Range Type Transmission Distance
ZFR1810 Coordinator,
ZFR1811 Router/Repeater
WRZ Series Sensor
Recommended 15.2 m (50 ft) 15.2 m (50 ft)
Maximum, Line of Sight 76.2 m (250 ft) 30 m (100 ft)
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