Honeywell MS-9600LSE Manual Do Utilizador

Página de 208
24
MS-9600LS Series Manual — P/N 52646:B2  2/12/2010
Product Description
Accessories
capacitance is the limiting factor.  These cases are marked in the chart with an asterisk (*).  Maxi-
mum length can never be more than 6,000 feet (1,800 m), regardless of gauge used.  The formula 
used to generate this chart is shown in the note below.
The following formulas were used to generate the wire distance chart:
Exception:  When using the ANN-RLY module, the installer must ensure that the maximum 
24VDC power line drop does not exceed 0.3 volts.  This results in the following wiring limitations:
Wiring Distance Calculation Example:
Suppose a system is configured with the following ANN-BUS modules:
3 ANN-80 Remote Fire Annunciators
1 ANN-S/PG Serial/Parallel Printer Interface Module
1 ANN-I/O LED Driver Module
Wiring Distance: ANN-BUS Modules to FACP
Total Worst Case Current 
Draw (amps)
22 Gauge
18 Gauge
16 Gauge
14 Gauge
0.100
1,852 ft.
4,688 ft.
* 6,000 ft.
*6,000 ft.
0.200
926 ft.
2,344 ft.
3,731 ft.
5,906 ft.
0.300
617 ft.
1,563 ft.
2,488 ft.
3,937 ft.
0.400
463 ft.
1,172 ft.
1,866 ft.
2,953 ft.
0.500
370 ft.
938 ft.
1,493 ft.
2,362 ft.
Table 1.1  Wiring Distances
Maximum Resistance (Ohms)
=
6.0 volts
Total Worst Case Current Draw (amps)
Maximum Wire Length (feet)
(6,000 feet maximum)
=
Maximum Resistance (Ohms)
*500
Rpu
where: Rpu = Ohms per 1,000 feet for various Wire Gauges (see table below)
Wire Gauge
Ohms per 1,000 feet (Rpu)
22
16.2
18
6.4
16
4.02
14
2.54
Wire Gauge
Maximum Wire Length
18
312 feet
16
497 feet
14
787 feet
12
1,250 feet