Installation Manual: EVAX EVX-ATM Audio Transponder Module
NOTICE TO THE INSTALLER
This manual provides an overview and the installation instructions for the EVAX EVX-ATM Audio Transponder Module. All terminals are
power limited and should be wired in accordance with the requirements of NFPA 70 (NEC), NFPA 101 (Life Safety Code) and NFPA
72 (National Fire Alarm Code). Failure to follow the wiring diagrams in the following pages will cause the system to not operate as
intended. For further information, refer to the control panel installation instructions.
The module shall only be installed with listed devices. Refer to the installation manuals for proper system operation.
Description
The EVX-ATM provides a method of interfacing audio either into the evac system or from the evac system into an external paging
system. It has several methods of accomplishing this and is field selectable for itsmodes. It is capable of being activated by either
contact closure or signal presence by use of a VOX, Voice Activation Circuit. Its input may be Balanced Line, 1 Vrms into 600 Ohms, 25
Vrms or 70 Vrms.
The input and output signals are isolated so systems will not experience ground loop problems.
Mounting: EVX-ATM mounts into standard 3” snaptrack. The board also has mounting holes at the corners for stand-off mounts where
required.
5403676 Rev A 1/18
Evax by Potter • Branford, CT • Phone: (800) 325-3936 • www.evax.com
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1
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EVX-ATM
A B C D
J1
P Q - R
J2
J6
V -
J4 1V 25
V
70
V
J3
1 5 M
J5
X Y
TB1
TB2
TB3
VR1
P1
TB2:
Ter. 1 - 2 Audio input
selectable
Bal. Line 1V-600 Ohm,
25/70 VRMS
TB1:
Ter. 1 -
signal)
Ter. 2 - V+ (24V DC 0.10A)
Ter. 3 - ALARM
Ter. 4 - AUX SIG
Ter. 5 - AUX PTT
Ter. 6 - Signal
Ter. 7 - Aux. Audio / PreAmp
PTT (Push To Talk
TB3:
Ter. 1& 2 - N.O. Dry Contact
Ter. 3 - 4 - Bal. Line output
JUMPERS:
J1 - PTT Function
J2 - Audio Path
J3 - Gain
J4 - Audio Input
Voltage
J5 - Dry Contact
Function
J6 - Audio Input
SPECIFICATIONS:
Power: 24 VDC
0.015A Standby
0.035A Active
Dimensions: 3 x 3”
mounting holes 0.160” dia. 0.25” centered @ corners