Connecting cables
112
SmartNode 1000 and 2000 Series Getting Started Guide
7 • SmartNode 2400 installation
Installing the DC power cable
Figure 79. Grounding stud and terminal block
Do not connect the power cable to the DC power source at this time. For the DC power source, the Smart-
Node 2400 is equipped with a two-position terminal block (see
figure 79
).
1. Assemble a ground wire using #10 AWG wire with green-colored insulation and two ring terminals. Make
the wire long enough to reach one of the following
earth
ground sources:
– The building ground rod (generally located at the site’s main service entrance)
– A sprinkler system pipe
– A cold-water pipe
– Building structural steel
2. Install the grounding wire between the grounding stud (see
figure 79
on page 112) and the
grounding source.
3. Strip back the insulation on each of the power cable wires approximately 1/4-inch.
4. Insert the stripped end of the positive lead into the [+] of the terminal block (see
figure 79
on page 112).
Tighten the clamp screw until the power lead is firmly fastened. Repeat the procedure for the negative lead,
using the [-] of the terminal block. Make sure that all strands of the wire are captured and that there are no
exposed wires.
Mains Voltage: Do not open the case when the power cord is attached. Dis-
connect the power supply cord before servicing. For systems without a power
switch, line voltages are present within the power supply when the power
cords are connected. The mains outlet that is utilized to power the SmartNode
router shall be within 10 feet (3 meters) of the device, shall be easily accessi-
ble, and protected by a circuit breaker.
An approved external power supply that incorporates a discon-
nect device must be used and positioned within easy reach of
the operator’s position.
WARNING
+ DC input
- DC input
Grounding stud
Clamp screws
Terminal
block
CAUTION
