Potter EVAX EVX-RM User manual

Installation Manual: EVAX EVX-RM Remote Microphone
NOTICE TO THE INSTALLER
This manual provides an overview and the installation instructions for the EVAX EVX-RM Remote Microphone.
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 control panels. Refer to the control panel installation manual for proper system operation.
Description
The EVX-RM is a supervised remote microphone panel for use with the EVAX 25/50/100 voice evacuation system and Evax HMX
systems. The purpose is to allow emergency voice messages to be made over the system speakers from another location remote from
the EVAX 25/50/100 or HMX panels.
The EVX-RM connects via 3 pair shielded cable to the EVX-SC supervisory card, which is mounted within the EVAX 25/50/100 or
HMX Master panels. Fault conditions in the wiring or in the remote microphone circuitry are reported to the FACP through the same
supervisory path as the EVAX 25/50/100 or HMX Master.
When the EVX-RM microphone is keyed during an alarm condition, the alarm signal and digital message will be interrupted and live
voice messages can be broadcast. In normal standby the microphone can be keyed to make announcements at any time. Any time an
EVX-RM is keyed the In-Use LED will light on all other EVX-RMs, the other units will bedisabled. This is to insure that only one operator
is able to page over the system. If the master microphone in the EVAX 25/50/100 or HMX Master panel is keyed it will override any
remote microphone.
Installation and Wiring
Install equipment in a clean, dry environment, avoid installation where equipment could be subjected to vibration. Remove electronic
assemblies from the enclosure prior to any drilling or punching of the enclosure. Where possible, make all cable entries from the rear or
sides. Before making any modications to the enclosure, be certain that they will not interfere with assemblies or batteries.
Ensure all power is off before making any wire connections.
1. Use 3-pair shielded wire (#22 AWG min.) from the EVAX 25/50/100 or HMX Master panel to the EVX-RM remote microphone
location.
2. Attach snap-track to the EVAX 25/50/100 HMX Master cabinet. Mount EVX-SC Supervisory Card to snap-track. (May be factory
mounted and wired)
3. Make wiring connections as shown on WD-1. Where multiple EVX-RM units are used, insure that EOLR is used on last unit only.
Apply power to test.
4. Test systems primary microphone. Test the EVX-RM remote microphone. Activate an Alarm. Retest EVAX 25/50/100 or HMX
Master to ensure that tone and message are broadcast.
5403671 Rev A 12/17
Evax by Potter • Phone: [phone] • www.evax.com
PAGE 1 OF 4

INSTALLATION MANUAL: EVAX EVX-RM REMOTE MICROPHONE
5403671 Rev A 12/17
Evax by Potter • Phone: [phone] • www.evax.com
PAGE 2 OF 4
5. Terminal Designations
*EOLR is a 6/3 SIP 10K Resistor Network
to be installed on last EVX-RM only.
Wiring Detail Fig.1
**Maximum line resistance is dependent on
# of devices loading the line.
2 EVX-RM - 100W Max. Line Resistance
3 EVX-RM - 80W Max. Line Resistance
4 EVX-RM - 65W Max. Line Resistance
5 EVX-RM - 50W Max. Line Resistance
More than 5 EVX-RMs is not recommended
EVX-SC
V+
NEG
FAULT
PTT
AUDIO
3 pair Shielded
#22 AWG
TO
EV
AX 25/50/100
Ter 11
Ter 10
Ter 6
Ter 2
Ter 1
Ter 8
T
B
2
T
B
3
*EOLR
MIC
GAIN
VR1
P1
TO
ADDITIONAL
EVX-RM UNITS
*EOLR ON LAST UNIT ONLY
YEL RED
F
A
U
L
T
I
N
U
S
E
SUPERVISED
NON
SUPERVISED
All wiring is Power-Limited
Maximum Line Resistance
to last EVX-RM is 100Ω
per line.
Approx. 5000' of #22AWG
YEL
F
A
U
L
T
TB1
TB1
TB2
**
1
2
7
6
5
4
3
12345
1
2
3
4
5
EVX-RM
EVX-SC must be mounted in same enclosure
as the EVAX 25/50/100 or in another UL
Listed cabinet within 20' in conduit.
* EVX-SC must be mounted using metal standoffs
or an Earth ground connection must be made
to TB2-7. Ground faults are indicated at 10K
impedance or less.
Terminal Designations
EVX-SC EVX-RM
TB2 TB1
Ter. 1 - MIC PTT +24 10mA Ter. 1 - V+ 24 VDC 0.04A
Ter. 2 - V+ 24 VDC 0.10A Ter. 2 - Ckt. Neg.
Ter. 3 - PTT +24V 10mA Ter. 3 - Fault +24V (Pull down 10mA)
Ter. 4 - Audio 1Vrms 10mA Ter. 4 - PTT +24V 10mA
Ter. 5 - Ckt Neg. Ter. 5 - Audio 1Vrms
Ter. 6 - Fault +24V 10mA
Ter. 7 - Earth Ground LED1
Fault (Yellow)
TB1
Ter. 1 - V+ 24 VDC LED2
Ter. 2 - Ckt Neg. In Use (Red)
Ter, 3 - Fault
Ter. 4 - PTT VR1
Ter. 5 - Audio 1Vrms Mic Gain (clockwise to increase)
LED1 P1
Fault (Yellow) 6 position modular jack
(connect to microphone)
EVAX 25/50/100
EVX-SC
T
B
3
T
B
2
TO
EVX-RM
TO
BATTERIES
Battery cabling is Non-Power Limited
Do Not route any Power Limited wirin
g
within a ¼" of Battery cabling.
All wiring from EVX-SC is Power Limited.
All wiring must be routed to maintain minimum
spacing from any Non-power Limited wiring.
Specications
EVX-SC
Input Voltage - 24 VDC
Input Current - 0.030A DC Standby
- 0.050A DC Active
EVX-RM
Input Voltage - 24 VDC
Input Current - 0.020A DC Standby
- 0.040A DC Active
NOTE: When circuits are Power Limited,
use Power Limited cable as detailed in the
National Electrical Code, Article 760, such
as FPL or FPLP type cabling.
Field wiring connections:
#6-32 wire clamp screw 14-18 AWG
#8-32 wire clamp screw 12-18 AWG
Horizontal wire entry terminal 18-26 AWG
Wire gauge determined by circuit load

INSTALLATION MANUAL: EVAX EVX-RM REMOTE MICROPHONE
5403671 Rev A 12/17
Evax by Potter • Phone: [phone] • www.evax.com
PAGE 3 OF 4
TB1TB2
TB3TB4 TB5P1
P2
P3
P4
J3
1
2
3
LED3LED2LED1
DCC
SSC
P3
LED1
P2
P1
MFP ASC
TB1
P4
P3
P1
P2
P5
P5
V+
NEG
FAULT
PTT
AUDIO
EVX-SC
YEL
F
A
U
L
T
TB1
TB2
1
2
7
6
5
4
3
1
2
3
4
5
5 Conductors #22AWG Min.
with Shield Out to EVX-RM
7
6
5
4
3
2
1
Blue
Blue
Red
Red
Yel
Yel
Grn
Grn
Wht
Wht
Audio
Ckt Neg
V+
Fault
PTT
EVX-RM
(EVX-SC mounts
in Master Panel)
Note: Wire colors are for factory
wired systems and user reference.
Field wiring connections:
#6-32 wire clamp screw 14-18 AWG
#8-32 wire clamp screw 12-18 AWG
Horizontal wire entry terminal 18-26 AWG
Wire gauge determined by circuit load
ASC to EVX-SC
Wiring Detail

INSTALLATION MANUAL: EVAX EVX-RM REMOTE MICROPHONE
5403671 Rev A 12/17
Evax by Potter • Phone: [phone] • www.evax.com
PAGE 4 OF 4
ASC to EVX-SC
Wiring Detail
TB1TB2
TB3TB4 TB5P1
P2
P3
P4
J3
1
2
3
LED3LED2LED1
DCC
SSC
P3
LED1
P2
P1
MFP ASC
TB1
P4
P3
P1
P2
P5
P5
7
6
5
4
3
2
1Blue
Red
Yel
Grn
Wht
Audio
Ckt Neg
V+
Fault
PTT
EVX-RM
(EVX-RM mounts
in separate cabinet)
Note: Wire colors are for factory wired
systems and user reference.
Field wiring connections:
#6-32 wire clamp screw 14-18 AWG
#8-32 wire clamp screw 12-18 AWG
Horizontal wire entry terminal 18-26 AWG
Wire gauge determined by circuit load