Revised 2/25/04 • RS Standard and RS Pro
2
© 2004 Automated Logic Corporation
set to 2, pressing Warmer twice raises both
setpoints and the average, resulting in a
cooling setpoint of 78, a heating setpoint of
72, and an average setpoint of 75.
Info
The info button cycles through:
• the zone temperature
• the outside air temperature, if enabled
• the override time in minutes
• the heating setpoint
• the cooling setpoint
Rnet Wiring
The Rnet communicates at a rate of 115 kbps,
and uses a daisy-chain, star, or hybrid
configuration.
Table 1. Rnet Wire Specifications
Wire gauge
18 AWG
Wire type
stranded copper
Wire insulation
0.009” low smoke PVC
UL temp rating
-40 °C to 75 °C
Jacket
0.0140” low smoke PVC
0.255” nominal O.D.
Shielding
foil, with drain wire
Capacitance
47pF/ft nominal
Resistance
6.9 ohms/1000 feet
Maximum length per
segment
500 feet (152 meters)
Wiring Recommendations
Use the specified type of sensor cable for
maximum signal integrity.
If bare communication wire comes in contact
with the cable’s foil shield, drain/shield wire,
or a metal surface other than the connector,
the sensor may not communicate. When
connecting the wire, keep the following
guidelines in mind:
• Partially cut, then bend and pull off the
wire’s outer jacket so that you do not
nick the inner insulation. See Figure 2.
Figure 2. Stripping an Rnet wire
Foil
1"
1/4"
Inner
Insulation
Outer
Jacket
• Strip about 1/4 inch (6 mm) of the inner
insulation from each wire. When you
insert the wire into the connector, do
not allow more than 1/8 inch (3 mm)
bare communication wire to protrude.
See Figure 3.
• Twist together the drain or shield wires
from both pairs, then insert them into
the connector with the black ground
wire.
Figure 3. Connecting the screw terminal block
Correct
Incorrect
Incorrect
No more than
1/8 inch (3mm)
of bare wire
Correct
Mounting
After wiring, connect the terminal block,
wires facing up, to the back of the sensor’s
circuit board. See Figure 4. Replace the
sensor’s cover. Turn the setscrew one full turn