ZFR1812 Wall Mount Wireless Field Bus Router Installation Instructions
5
The preferred orientation for the ZFR1812 Router is in
a horizontal orientation with the green LED at the top. If
you feel that you are not able to get proper signal
strength, you can rotate the device 90 degrees on its
plastic wall plate. See Figure 6.
Location Considerations
Follow these guidelines when locating a ZFR1812
Router within a ZFR1800 Series System.
•
Locate the ZFR1812 Router so that it is easily
accessible.
•
For best signal transmission, mount the ZFR1812
Router in an unobstructed location below (and
clear of) any pipes, duct work, or other metal
obstructions by at least 50 mm (2 in.).
•
Due to the nature of the radio frequency waves, a
wireless device may have significantly different
signal strengths if its position changes relative to
another wireless device or if its environment
changes.
•
Locate the ZFR1812 Router in line-of-sight with as
many ZFR1812 Routers and WRZ Sensors as
possible.
•
Do not mount the ZFR1812 Router in recessed
areas, metal enclosures, or shelving units.
Note:
For detailed information on location guidelines
for a ZFR1800 Series system, and for estimating the
number of ZFR1812 Routers needed as repeaters for
extending wireless transmission range, refer to the
ZFR1800 Series Wireless Field Bus System Technical
Bulletin (LIT-12011295)
.
Wireless Signal Transmission Considerations
Line-of-sight transmission ranges between a
ZFR1810 Coordinator, ZFR1812 Router, and a
WRZ Sensor can be less than the maximum distances
shown in Table 1. The effective transmission range 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.
Wiring
Wiring Considerations and Guidelines
Wiring with an FEC or VMA16 Series Field
Controller
Connect the ZFR1812 Router to the field controller as
shown in Table 2. This connection provides both power
and communication to the ZFR1812 Router.
Note:
When using a field controller in a wireless field
bus network, ensure that the DIP switch for Address
128 is set to the ON position.
Figure 6: ZFR1812 Mounted in Wall Plate
Table 1: Indoor Line-of-Sight Transmission
Ranges
Range Type
Transmission Distance
ZFR1810
Coordinator,
ZFR1812 Router
WRZ Series
Sensor
Recommended
15.2 m (50 ft)
15.2 m (50 ft)
Maximum
76.2 m (250 ft)
30 m (98 ft)
IMPORTANT:
Do not connect supply power to the
ZFR1812 Router before finishing wiring and
checking all wiring connections. Short circuits or
improperly connected wires may result in permanent
damage to the Router.
IMPORTANT:
Use copper conductors only. Make
all wiring in accordance with local, national, and
regional regulations. The ZFR1812 Router is a
low-voltage (less than 30 VAC) device. Do not
exceed the ZFR1812 Router’s electrical ratings.
IMPORTANT:
Prevent any static electric discharge
to the ZFR1812 Router. Static electric discharge can
damage the ZFR1812 Router and void any
warranties.
IMPORTANT: Do not
connect the ZFR1812 Router
to the power supply before setting the PAN OFFSET
switches.
