Product manual

EAP01 - Product Manual
4.2.4 Connection to DAU or VAR8 Inputs 1 or 2
The following diagram shows the connection of the EAP01 to a DAU’s or VAR8’s Mic/Line inputs 1 or 2 as a
Fire Microphone.
Please refer to the DAU and VAR8 Installation Guides [Table 5, page 48] for cabling recommendation.
L
The system fault indication relay output on the DAU or VAR8 is normally used by the Fire Alarm
Panel. Therefore the System Fault LED will normally not be driven by the DAU or the VAR8.
Please contact ASL for further details.
Figure 13 EAP01 Connection to DAU/VAR8 Inputs 1 or 2
PRESS-TO-TALK
EAP01
AUDIO
PTT+
PTT-
AUDIO -
AUDIO +
6k8
470
FIRE MICROPHONE CONNECTIONS TO DAU/VAR8 INPUTS 1 OR 2
SYSTEM FAULT LED -
SPEAK NOW LED -
PTT+
PTT-
DAU OR VAR8
IN -
IN +
SPEAK-NOW-LED
INPUT 1 OR 2
SUPPLY+
AUDIO MON
(a) The system fault indication relay output on the DAU or VAR8 is normally used by the Fire Alarm Panel. Therefore the System
Fault LED will normally not be driven by the DAU or the VAR8. Please contact ASL for further details.
(b) PTT Function Test:
Measure the voltage between PTT+ and PTT-.
Make sure that the microphone is powered, and polarity of PTT connections is correct.
PTT+ to PTT- Voltage ranges:
PTT INACTIVE = 2V8 to 3V2
PTT ACTIVE = 0V4 to 0V5
(c) Required for optional Busy indicator only.
(d) Transistor is not present in EAP01 Build Standard Version 5 or later.
POWER SUPPLY
0V INPUT
+24V INPUT
SYPPLY 0V
SUPPLY+
DATA
DATA-DXP
DATA-DXN
MIC DXP
MIC DXN
(c)
SPEAK NOW LED
SYSTEM FAULT LED
(a)
COMMON LED +
(b)
(d)
Issue: 02 complete, approved
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