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DC Control Wiring
When wiring the RAEPoint's relays to external devices, the resistance of the wiring may be sufficient
to cause significant voltage drop, particularly in long wires. In order to compensate for this, you
must calculate the resistance and compensate accordingly.
The table below gives approximate values for resistance by wire gauge (AWG). After calculating and
compensating for voltage drop, check the system to ensure that all equipment is receiving
sufficient voltage.
Wire Gauge and DC resistance values (in ohms)
AWG Gauge
12
13
14
15
16
17
18
19
20
21
22
23
24
Voltage Loss = Amperes x Wire Resistance per 1,000 feet x Distance in thousands of feet x 2 Wires
- or –
Voltage Loss = Amperes x Wire Resistance per kilometer x Distance in kilometers x 2 Wires
Switch Settings
Configuration requires setting the two hexadecimal rotary-encoder switches that govern Pan ID
and Channel, located inside the RAEPoint.
Pan ID (SW1) And Channel (SW2)
Make sure all units in the network, including an FMC2000 controller and any monitors, have the
same Pan ID number and channel in order to communicate within the network. If you change the
Pan ID number or Channel on the FMC2000, check the other units in the network, as well as the
RAEPoint, to ensure they match.
Honeywell® RAEPoint |
Ohms per 1000 ft.
1.588
2.003
2.525
3.184
4.016
5.064
6.385
8.051
10.15
12.8
16.14
20.36
25.67
User Manual
Ohms per Kilometer
5.20864
6.56984
8.282
10.44352
13.17248
16.60992
20.9428
26.40728
33.292
41.984
52.9392
66.7808
84.1976
23
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