ECS Series Manual —
P/N LS10262-001FK-E:A 3/3/2021
41
Installing the FIK-125W
Device Installation
Instead, separate the wiring as follows:
DO NOT pull wires from different groups through the same conduit.
Twisted, shielded wire is recommended for all audio circuits to provide the maximum protection against EMI and AFI emission and suscep-
tibility.
If using shielded cable, attach the shield to earth ground on the control panel.
For the same reasons, wiring within the cabinet should be routed around the perimeter of the cabinet. It should not cross the printed circuit
board where it could induce noise into the sensitive microelectronics or pick up unwanted RF noise from the high speed circuits.
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 4.33 provides an example.
Figure 4.33 Wire Routing Example for the FIK-125W
4.6.5 Speaker Wiring
Each FIK-125W supplies four NACs (Notification Appliance Circuits) for speaker connection. The speaker circuit can be supervised and
wired Class B or Class A. 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.
1/4” spacing must be maintained
Input/Output Type:
Wiring
between each of these circuit
types;
Non Power-Limited:
AC power, Standby batteries
as well as between power limited
Power-Limited:
SBUS, VBUS
and non power-limited circuits.
Audio:
Speaker
To AC
VBUS
In & Out
SBUS
Audio
Circuits
Audio Circuits
Audio
Circuits
Battery Connection
FIK-CE4
