ECS Series Manual — P/N LS10262-001FK-E:A 3/3/2021 43
Installing the FIK-125W Device Installation
4.6.6 VBUS Wiring
The VBUS is an analog voice bus that carries the recorded voice messages from the FIK-NVCM to the FIK-125W or the voice messages
generated from a system microphone to the FIK-125W. The maximum resistance on the VBUS is 20Ω.
Connect the VBUS from the FIK-NVCM to the FIK-125W as shown in Figure 4.36.
Figure 4.36 VBUS Wiring for FIK-NVCM
4.6.7 SBUS Wiring
This section contains information on how to connect FIK-125Ws (up to 8 for FCP-300ECS; up to 16 for FCP-2100ECS) onto the main con-
trol SBUS. Refer to Section 4 of the FACP’s Installation manual for SBUS specifications. Wire the SBUS as shown in Figure 4.37 or
Figure 4.37 for the FIK-NVCM.
Supervised
power limited
15kΩ EOL
at last panel
on the VBUS
FIK-125W
FIK-125W
FIK-NVCM
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