Product manual

EAP01 - Product Manual
4.2.3 Connection to ACU or VAR8-ACU Inputs 1 or 2
The following diagram shows the connection of the EAP01 to an ACU’s or VAR8-ACU’s Mic/Line inputs 1 or
2 as a Fire Microphone.
Please refer to the ACU or VAR8-ACU Installation Guides [Table 5, page 48] for cabling recommendation.
Figure 12 EAP01 Connection to ACU/VAR8-ACU Inputs 1 or 2
PRESS-TO-TALK
EAP01
AUDIO
PTT+
PTT-
AUDIO -
AUDIO +
6k8
470
FIRE MICROPHONE CONNECTIONS TO ACU/VAR8-ACU INPUTS 1 OR 2
SYSTEM FAULT LED -
SPEAK NOW LED -
PTT+
PTT-
ACU
IN -
IN +
SPEAK-NOW-LED
INPUT 1 OR 2
SUPPLY+
AUDIO MON
(a) BMB01 digital output to be programmed for 'Fault Indication' at the ACU.
(b) The BMB01 is normally connected to the ACU's RS485 port as shown in this diagram. Note that the ACU also supports BMB01
units on its Mic/Line inputs, in which case the DATA and power supply connections are to the MIC Data and SUPPLY terminals of
the selected Mic/Line inputs.
Refer to the BMB01 installation guide and the specific ACU installation guide for further details.
(c) The ACU can be either the Intellevac ACU or the VAR8-ACU.
(d) 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
(e) Required for optional Busy indicator only.
(f) Transistor is not present in EAP01 Build Standard Version 5 or later.
(c)
POWER SUPPLY
0V INPUT
+24V INPUT
SYPPLY 0V
SUPPLY+
DATA
DATA-DXP
DATA-DXN
MIC DXP
MIC DXN
(e)
RS485DXN
RS485DXP
GND
SERIAL RS485
PIN 51: DATA DXN
PIN 50: DATA DXP
PIN 49: 0Vin
BMB01
(b)
SPEAK NOW LED
SYSTEM FAULT LED
PIN 48: +24Vin
(a)
DO1 (PIN 14) TO DO12 (PIN25)
(DIGITAL OUTPUT)
COMMON LED +
(d)
(f)
Issue: 02 complete, approved
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