Stanley SCSS-700VS, Руководство по установке и эксплуатации

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Installation
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4. High frequency noise, such as that produced by the inductive reactance of a speaker or
bell, can also be reduced by running the wire through ferrite beads or by wrapping it
around a ferrite toroid core. Figure 3-28 provides an example.
Figure 3-28 Wire Routing Example for VIP-125
3.9.4 Speaker Wiring
Each VIP-125 supplies four NACs (Notification Appliance Circuit) for speaker connections.
The speaker circuit can be supervised and wired Class B (Style Y) or Class A (Style Z).
Speaker circuit 1 is capable of 100 watts of power at 25 Vrms. Speaker circuit 2-4 are capable
of 50 watts (each) at 25 Vrms
3.9.4.1 Wiring Lengths
Table 3-3 Wire Lengths
Number Of Speakers Total Load Wire Distance in Feet
@1/2 W @1 W Vrms Watts 18 AWG 16 AWG 14 AWG 12 AWG
10 5 25Vrms 5W 3900 6200 9860 15680
20 10 25Vrms 10W 2125 3380 5375 8540
30 15 25Vrms 15W 1460 2320 3690 5870