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ECS Series Manual —
P/N LS10262-001FK-E:A 3/3/2021
Device Installation
Installing the FIK-DUAL50W
Class A Speaker Configuration for FIK-DUAL50W
Figure 4.47 illustrates how to wire speakers to the control panel using Class A wiring.
Figure 4.47 Class A Speaker Configuration
4.7.6 VBUS Wiring
The VBUS is an analog voice bus that carries the recorded voice messages from the FIK-NVCM to the FIK-DUAL50Ws, or the voice mes-
sages generated from a system microphone to the FIK-DUAL50Ws. The maximum resistance on the VBUS is 20
Ω
.
The FIK-DUAL50W supports two VBUS channels. The wiring method is the same for both channels. VBUS1 and VBUS2 should never be
wired together.
Connect the VBUS from the Figure 4.48 and Figure 4.49 for FIK-NVCM.
Supervised
power limited