Bosch EVAX25E, EVAX50E, EVAX25ER Installation Manual
EVX-25E / EVX-50E
EXPANDER
INSTALLATION INSTRUCTIONS
The EVX-25E/ EVX-50E is a self contained amplifier, tone generator, power supply and supervisory
interface. It is designed to be used in conjunction with the EVAX 25/ 50 to provide additional speaker
output power. It may also be used stand-alone in conjunction with a Fire Alarm Control Panel to
provide voice evacuation where an automatic message is not desired.
Installation and operation is identical to the EVAX 25/ 50 (see Installation Instructions P/N 1-5001 Rev.
D). With the exception that no digital message is present. When used in conjunction with the EVAX
25/ 50 the Expander will act as a slave reproducing the tone and message generated by the master.
When used as a stand-alone, the Expander will connect to the FACP exactly as the EVAX 25/ 50 does
to provide automatic tone in alarm and voice override capability.
All terminal designations and volume controls are identical to the EVAX 25/ 50. One exception is that
on the Expander SN1 determines Tone, Master/Slave, Battery and Mic. There is no SN2.
Factory defaults are:
Expander as Slave
1 = OFF Temporal Whoop Signal
2 = OFF
3 = OFF
4 = OFF
5 = OFF
6 = OFF Slave (ON = Master setting)
7 = ON Battery connected (OFF = No Batteries)
8 = OFF No Mic (ON = Mic connected)
Expander as Master / Stand-Alone
1 = OFF Temporal Whoop Signal
2 = OFF
3 = OFF
4 = OFF
5 = OFF
6 = ON Master setting
7 = ON Battery connected (OFF = No Batteries)
8 = ON Mic connected
Switch Network Detail
1 8
OFF = 0 (UP)
ON = 1 (DOWN)
SN1 Tone Selection
SW 1/2/3 Sets the tone generated by the amplifier
when it is operating in Master mode.
7 Settings: 0/0/0 Temporal Whoop
1/0/0 Hi / Lo Tone
0/1/0 Sine Wave
0/0/1 1 kHz Sine Wave
1/1/0 March Time Beep (880 Hz)
1/0/1 Slow Whoop
0/1/1 Code 3 Beep
For ratings and specifications see Installation Instructions P/N 1-5001 Rev. E
P/N 1-5002 REV. D
FIRE ALARM CONTROL PANEL
SIGNAL
CIRCUIT
ALARM POLARITY
INPUT POWER
120 VAC
Supervised
Non-Power Limited
EVX-25E / 50E
FIRE ALARM CONTROL PANEL
SIGNAL
CIRCUIT
ALARM
POLARITY
-
+
EVAX 25E / 50E
_
Supervised - Power Limited
+
Supervised - Power Limited
XFMR
FACP
EOLR
MATCHING
EOLR
(SPEAKER
CIRCUIT)
TYPICAL INSTALLATION
TB1
1 2 345 6 7 8
1
J1
TB3
E
O
L
E
O
L
2
1
2
3
4
YEL
5
6
GRN
7
8
RED
YEL
GROUND
MSG
FAULT
GAIN
S1
*
FAULT
NORMAL
NORMAL
ALARM
MIC
GAIN
SN1
Battery Wire Harness
Supervised - Non Power Limited
Charging Current 1A max.
Supervised - Power Limited
CLASS “B” (Style “Y”)
WIRING
Standard Life Safety Speakers, Strobes connected and powered separately
Break wire to maintain supervision. Do not loop wire around speaker terminals
TB2
J5
1
11
10
2
9
8
7
J2
1 2 3
70V 25V
6
5
4
3
2
1
P2
FF
II
RR
EE
II
II
RR
RR
EE
EE
CLASS “A” (Style “Z”)
WIRING
FF
II
RR
EE
TB1
5 6 7 8
Supervised - Power Limited
FF
FF
For Fire Emergency Use Only
-
12V
Battery
+
Jumper Wire is Provided
E
O
EOLR
L
FF
II
RR
EE
EOL
-
12V
Battery
+
EVAX 25 / 50
Master / Slave Connection Detail
Non-Supervised - Power Limited
Non-Supervised wiring
TO
ADDITIONAL
EXPANDERS
must be only run in the
same cabinet or between
cabinets which are piped
together within the same
room at a maximum of
20’.
120 VAC
Supervised
1 2 345 6 7 8
Non-Power Limited
1
J1
2
FAULT
YEL
NORMAL
ALARM
MIC
GAIN
1 2 3
70V 25V
J2
EVX-25 / 50
SN2 SN1
TB2
J5
1
11
10
2
9
8
7
6
5
4
3
2
1
P2
U6
FACP
EOLR
TB1
TB3
1
2
E
3
O
4
L
5
6
7
8
MSG
GAIN
1 2 345 6 7 8
1
J1
2
SLAVE
FAULT
YEL
GRN
NORMAL
NORMAL
RED
ALARM
YEL
GROUND
MIC
FAULT
GAIN
EVX-25E / 50E
SN1
S1
J2
1 2 3
70V 25V
TB2
J5
1
11
10
2
9
8
7
6
5
4
3
2
1
P2
14 pin ribbon cable
(factory supplied) may be used
in place of hard wired connections
on TB2-11,5,3,1
Supervised Power Limited
TB1
TB3
1
2
MASTER
3
4
5
6
GRN
7
8
RED
YEL
GROUND
MSG
FAULT
GAIN
S1
*NOTE: Switch SN1-6, SN1-8 must be in OFF position for all Slave modules. All Power and Speaker connections remain unchanged.
J1 Shorting blocks removed from slave units for pass-through supervision.
33 Chestnut St. New Haven, CT 06511
(203) 752-1806 FAX 752-1906
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