User Manual

T
R
+
-
T
R
+
-
T
R
+
-
T
R
+
-
Typical Connections
Buffered branch with BUFEX
volume control (24V supply for
this branch not shown)
Output Terminals
The Tip (T) and Ring (R) con-
nections are transformer-iso-
lated audio outputs with an
output impedance of 8Ω.
Connect these to the audio
inputs of the amplified speak-
ers for driving up to 150
speaker inputs.
100V J1
70V J2
25V J3
T&R J4
INPUT
SIGNAL
TYPE
Input Terminals
The input terminals can receive
dry audio (Tip and Ring), as
well as 100V, 70V, and 25V
speaker signals depending on
the input voltage type jumper
setting.
Existing branch that needs buffer-
ing or audio to area requiring
local volume control (24V supply
for this branch not shown).
24V DC Terminals
The BUFEX power consumption is
1CU (50 mA) @ 24V DC.Terminals
are marked "+" and "-", but will func-
tion properly even if polarity connec-
tions are reversed.
24V
Power
Supply