Bosch EVAX25E User Manual

2 | Bosch Voice Evacuation Systems

Use the EVAX25EM, EVAX50EM, or EVAX100EM expander
panel when a 25 W, 50 W, or 100 W audio expander is
needed with its own enclosure. Use the EVAX150EM and
EVAX200EM for expansion when greater power is required
in the larger enclosure configuration. The EM models have
all the features of the E models except they are without a
paging microphone.
Optional Expander Modules
The expander modules (EVX- models) can increase the
capacity of any Bosch voice evacuation system or expander
panel. They do not have paging microphones and are
intended for installation in UL Listed enclosures (not
supplied). Features of these modules:

•

Audio amplifier

•

Power regulator and battery charger

•

Tone generator

Optional Zone Splitters
The EVX‑4Z and EVX‑2ZA zone splitters allow the supervised
output of any Bosch audio amplifier to supervise multiple
zones. Features of these zone splitters:

•

Manual selection of any or all voice evacuation zones for

emergency paging

•

Automatic selection of voice evacuation zones by

connecting normally‑open contacts from the FACP or

other auxiliary control system

•

Annunciation of either active or faulted zone status by

individual LEDs

•

Compatibility with jumper‑selectable 25 V and 70 V

amplifier outputs

The EVX‑4Z has four Class B zones. The EVX‑2ZA has two
Class A zones.

Digital Message Repeater
Each of the Bosch voice evacuation systems (EVAX25,
EVAX50, EVAX100, EVAX150, and EVAX200) includes a
digital message repeater (DMR). The systems come with the
following standard 15‑second message programmed:
"Attention, please. There has been a report of an
emergency. Proceed calmly to the nearest exit and leave the
building immediately. Do not use the elevators; use
stairwells where necessary. All handicapped occupants
shall use the building evacuation plan."
The voice evacuation message is broadcast until the FACP
resets or until emergency personnel interrupt the broadcast
with a manual page. When the FACP resets, the voice
evacuation system automatically returns to normal
operating condition.
The closure of a contact from either the FACP or from any
normally‑open contact device can cause the broadcast of a
chime tone followed by the message "All clear."

Optional primary and secondary messages are available. For
further information, refer to the Bosch Voice Evacuation
System's Optional Messages Technical Service Note (P/
N: F01U500869).
Remote Paging Microphones
Remote paging microphones (up to five per EVX‑SC
supervisory card) are supported through a supervised
circuit. Remote microphones may be mounted up to 5000 ft
(1.5 km) away from the EVAX voice evacuation panel. An
ideal use for a remote microphone is when the FACP and
voice evacuation system panels are in an electrical room
and you need a microphone in the lobby.
System Settings
Control system operation by DIP switch settings:

•

Configure three DIP switches to determine alert tones

of Temporal Slow Whoop (default), Hi Lo, Horn, Bell, or

1  kHz.

•

Turn the Diagnostic Mode on or off (default).

•

Set the AC Power Failure Report for no delay (default)

or for a six‑hour delay.

•

Indicate if batteries are connected to the system. The

default setting is batteries are connected.

•

Indicate if a microphone is connected to the system.

The default setting is a microphone is connected.

•

Set the initial delay before a message starts for no

delay, 4‑second delay, 8‑second delay (default),

12‑second delay, 16‑second delay, 20‑second delay,

24‑second delay, or 28‑second delay. The chosen tone

sounds during the delay.

•

Set the delay between repeats of the message for a

4‑second delay, 8‑-second delay, 12‑second delay

(default), or 16‑second delay.

•

Indicate if the message plays or not. Message on is the

default.

•

Set the number of times the message plays to one play,

two plays, three plays (default), or continuous play.

USA

UL

UOXX: Control Unit Accessories, System
(UL864), UOXX2: Control Unit
Accessories, System - Component
(UL864)

CSFM

6911-1615: 101, 6911-1615: 102,
6911-1615: 103, and 6911-1615: 104

Compatible Products
The following products are compatible with the Bosch Voice
Evacuation Systems: