Product manual

EAP01 - Product Manual
4.2.2 Connection to VAR4/VAR12/VAR20 Input 2
The following diagram shows the connection of the EAP01 to a VAR4/VAR12/VAR20’s Mic/Line input 2 as a
Fire Microphone.
Refer to Section “3.2.2.1 Cabling to a VAR Router” (page 12) for recommended cabling.
Figure 11 EAP01 Connection to VAR4/VAR12/VAR20 Input 2
CONTROL PORT-1
ON BASE UNIT
PIN 7: ALL-CALL-2
PRESS-TO-TALK
PIN 6: 0 V
VAR4 / VAR12 / VAR20
EAP01
AUDIO
DATA
INPUT-2
PIN1: AUDIO -
PIN2: AUDIO +
PIN9: DATA+
PIN5: DATA-
PTT+
PTT-
AUDIO -
DATA-DXP
AUDIO +
DATA-DXN
6k8
470
PIN 24: REMOTE FAULT-2
SPEAK NOW LED
SPEAK NOW LED -
PIN 12: SPEAK-NOW-2
SYSTEM FAULT LED
SYSTEM FAULT LED -
FIRE MICROPHONE CONNECTIONS TO VAR4 / VAR12 / VAR20 INPUT 2
(a)
(c)
PIN7: +SUPPLY
PIN3: 0V-SUPPLY
PIN 19: AUX POWER
COMMON LED +
(b)
(d)
(a) Remote Fault Output to be programmed as 'Remote Fault Active Indicator' at the Router.
(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
+24V INPUT
0V INPUT
FROM V400 AUX OUTPUT
Issue: 02 complete, approved
Page 22 of 52