Wegener UNITY4000, Instruction Manual

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2-11 UTY4000-003
Figure 2-2. Ferrite Bead Installation
* * * CAUTION * * *
To meet FCC requirements, the alarm and contact closures must have a
ferrite bead installed on each pair of wires leading from them. See Section
2.5.2 and Figure 2-2 for instructions on their installation. There are 7
ferrite beads packed with the unit. Four of these are for use with the audio
outputs, 1 is for the alarm relay output, and 2 are for the contact closures.
L
+
C
R
O
M
-
R
+
C C
-
L O
M O
R
M
+
+
ALARM
C
L
-
O
M L
R
+
-
MODE
2
CLOSURE
L
G
N N
B D
- - +
+
1
250mA
MAX
-
BALANCED AUDIO
CH 2 CH 1