Trane ZN. LonWorks control, Руководство пользователя

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Features
Specifications apply to shield or unshielded 22AWG (0.65mm 2 ) cable
D-C resistance (ohms/1000 feet at 20°C) maximum for a
single copper conductor regardless of whether it is solid
or stranded and is or is not metal coated
18.0
D-C resistance unbalance (percent) maximum 5
Mutual capacitance of a pair (pF/foot) maximum 17
Pair to ground capacitance unbalance
(pF/1000 feet) maximum
1000
Characteristic impedance (ohms)
772 kHz 102+/- 15%
1.0 MHz 100 +/- 15%
4.0 MHz 100 +/- 15%
8.0 MHz 100 +/- 15%
10.0 MHz 100 +/- 15%
16.0 MHz 100 +/- 15%
20.0 MHz 100 +/- 15%
Attenuation (dB/1000 feet at 20°C) maximum
772 kHz 4.5
1.0 MHz 5.5
4.0 MHz 11
8.0 MHz 15
10.0 MHz 17
16.0 MHz 22
20.0 MHz 24
Worst pair to pair near end crosstalk
(dB) minimum. Values are shown for
information only. The minimum
NEXT coupling loss for any pair
combination at room temperature is
to be greater than the value
determined using the formula NEXT
(F MHz)>NEXT (0.772)-15log10(F MHz
/ 0.772) for all frequencies in the
range of 0.772 MHz for a length of
330 meters.
772 kHz 58
1.0 MHz 56
4.0 MHz 47
8.0 MHz 42
10.0 MHz 41
16.0 MHz 38
20.0 MHz 36
For the TP/FT-10 channel operating in
a bus topology , the maximum bus
length of level 4 22AWG (0.65 mm
2 )
cabling is 1400 meters with a
maximum stub length of 3 meters. It
is recommended to use shielded
cable if high amplitude modulation
noise exist or transient protection is
required.
12 CNT-SVX13B-E4