User Manual: TFL2
4
Rev.0.3
1. DESCRIPTION
The end of line device allows the system to obtain greater precision in the supervision of
loudspeaker lines. End of line devices improve the detection of problems in open-circuit
loudspeaker lines, but they cannot detect the place where the failure has occurred.
Figure 1 - End Of Line Device TFL-2
1.1 INPUTS
i.
SPEAKER LINE INPUTS
On one side of the end of line device, there is a green connector to plug in the speaker line.
Mark
Description
Type
Signals
Activation
Green
Speaker line connection
Input
AB
Pilot tone 19KHz
Table 1 - Speaker Line Input
The connection is a Euroblock type connector with 2 contacts and 5.08mm width (provided with
the device). The cable section range for each pole of the connector is 0.5
→
2.5mm
2
(22
→
12 AWG).
ii.
IMPEDANCE SELECTOR
The end of line device has a selector
“400R / 200R”
, to determine the charge added to the
speaker lines.
Mark
Description
Type
Signals
Activation
Switch
End of Line Device Charge
Selector
400R/200R (19kHz tone)
Table 2 - Impedance Selector
