DL107, DL207 and DL210 2.0 Digi-Loop™ DSP Induction Loop Amplifiers
10
Analog Audio Input Connections
The DL107/207 amplifiers have an XLR Mic/Line input for accepting the balanced output of a microphone or mixer. These models also have a
phoenix-block line input. The DL210 only has phoenix-block line level inputs. The following is how the phoenix blocks would be wired.
shield (gnd)
red
shield (gnd)
L+
white
RCA
R+
shield (gnd)
L+
shield (gnd)
R+
red
white
3.5mm
L-
L+
XLR
common
(gnd)
mono left
1kΩ,1/8 W
Resistors
common
(gnd)
L+
L+
L-
shield
(gnd)
L+
R+
shields
(gnd)
No
L-
L+
R-
R+
shields
(gnd)
A658
Unbalanced stereo
summed
on mono channel
Unbalanced mono on
mono channel
Balanced mono on
mono channel
DL 107/207 (207 shown)
DL210
Yes
Unbalanced Sources
Balanced Sources
Mic/Line Input
(XLR balanced)
Line Input
(Phoenix Block)
Loop Fault Relay Overview
The loop fault relay provides a NO (normally open) and NC (normally closed) contact closure for triggering an external device or control sys-
tem when a fault (shorted or open loop) occurs. The external control system can then send a text or email, initiate an alarm, or turn on a light
to let personnel know that a loop fault has occurred.
