4
Electrical Specifications
Current
80 mA RMS @ 24 VDC Supervisory
160 mA RMS @ 24 VDC Alarm (no attached slaves)
Add 1 mA per attached slave on the master DFSM card.
Environmental Specifications
Operating
Temperature
32
to 122
F (0
to 49
C)
Humidity
93% relative humidity at 90
F (32
C)
LED Indicators
NAC
Trouble
Indicates an open or short circuit on the wiring running between the
master and slaves. Masters and slaves connect to one and other
via the primary and secondary terminals of terminal block TB1.
See “Wiring” later in this document.
Switch
Trouble
Indicates an open circuit on the wiring running between the key
switch and TB3 of the master DFSM card. A short on this circuit is
interpreted as a key switch activation.
PWR STG
Trouble
Indicates a problem with the audio path located on the DFSM card.
If this trouble occurs, check the jumper settings. If the jumpers are
set properly and this trouble still occurs, replace the DFSM card.
DFSM ON
Indicates DFSM is active and routed to the amplifiers.
AMP Out
Not used. Make sure to leave a 10K resistor on the AMP OUT
terminals to satisfy the supervision circuitry.
Note:
When the DFSM activates, some trouble outputs also activate. This is normal and
is done intentionally to signal the panel that the DFSM is active.
Overview,
Continued
Specifications
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