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ICP-B6 Connections and Ratings
2. Using the ICP-B6 as a Telephone Zone
When the ICP-B6 is used as a tele-
phone zone module, the 24 VDC
provides supervision, trouble, and call-
in conditions. If the 24 VDC is lost, the
trouble condition INPUT DEVICE
RESPONSE TOO LOW displays at the
MXL/MXLV and an LED for that zone
lights at a VSM-1 module.
The supervised telephone common talk
riser starts at the TBM-2 module in the
MME-3/MLE-6 backbox. The Class B
shielded cable connects continuously
to each ICP-B6 with a 5.6K end of line
device. Tie the shield of these riser
wires and the shield of the zone output
wires together using terminal 5 of TB2
and
isolate them from the system
circuits and the earth ground
.
Connect the supervised individual zone
output connections from each ICP-B6
to the field telephone with shielded
cable. Terminate them at the last
station with a 10K ohm end of line
resistor. As with the common talk line
described in the paragraph above, be
sure that
the shield is continuous
and isolated from both system
circuits and earth ground and that
the shields are connected together
using terminal 5 of TB2.
3. Using the ICP-B6 as a 70 Volt Speaker
Zone
When the ICP-B6 is used as a speaker
zone, the 24 VDC provides the supervi-
sion. If the 24 volts is lost or there is an
open or shorted speaker output line,
the trouble condition INPUT DEVICE
RESPONSE TOO LOW displays at the
MXL/MXLV and the related zone LED
on a VSM-1 lights.
The 70.7V RMS audio input comes
from the amplifier via the ASC-2 Ampli-
fier Supervision card. The ASC-2
supervises the audio connection path
to the ICP-B6 and provides up to 100
watts of power. The ASC-2 can be
used as Style Y (Class B) or Style Z
(Class A). Refer to the
ASC-2 Instruc-
tions,
P/N 315-092085.
When the ICP-B6 is used as a speaker
zone, the output speaker lines are
supervised and power limited. The
audio output cannot exceed 25 watts.
Connect the speaker output as either
Style Y (Class B) or Style Z (Class A).
The graph on page 4-37 gives the
approximate decibel loss for the total
speaker zone wire length for various
wire gauge sizes.
When using the ICP-B6 as a 70.7V
RMS speaker zone, cut the JP1
jumper.
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Содержание Cerberus PYROTRONICS MXL
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Страница 309: ...A 2 Appendix A Technical Manuals Online http www tech man com firealarmresources com ...
Страница 311: ...B 2 Appendix B Technical Manuals Online http www tech man com firealarmresources com ...
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