Datasheet

Bypass Feature
Local volume controls allow people
working in an area to control the level
of paging and background music for
their needs. However, in paging sys-
tems where alert announcements are
made as well as general announce-
ments, local volume controls can be a
problem. When users set volume con-
trols for very low levels or off, the alert
announcements may not be heard.
When the BUFEX’s Bypass feature
is activated (by an external contact clo-
sure), it overrides the local level setting
of the BUFEX and allows important
messages to be heard.
In certain circumstances, full level
audio messages may be overpowering.
The BUFEX includes a BypassTrim that
allows a maximum 12 dB of attenuation
to the alert message when the local
level is set to 0. As the local level is in-
creased, the Bypass Trim will track this
and increase the alert message level
proportionally.
• Local volume control for a group of speakers
• Provides buffering for up to 150 self-amplified
speakers
• Allows self-amplified speakers to work with
100V/70V/25V systems, expanding existing
systems
• Continuously variable attenuator
• Rugged and attractive stainless steel
wall plate with engraved lettering
• Mounts in single gang wall box
• Easy and secure terminal strip connections
• Jumper selectable 100V, 70V, or 25V
speaker selections as well as T/R
• Bypass feature overrides local volume
setting for high importance messages
• Bypass trim allows a maximum 12 dB
attenuation over bypass announcements
Product Features:
Used with 24V systems, the BUFEX is a multi-purpose
device that can work as a
volume control for a network
of speakers, and as a buffer
that can drive up to 150
speakers. It also functions as a system expander when
connecting to 100V, 70V, and 25V speaker systems.
To address the needs of emergency announcements,
the BUFEX has a Bypass feature that allows emergency
announcements to be heard at high levels regardless
of the volume setting on the BUFEX. The BUFEX contains
a Bypass Trim feature that allows some adjustment to
the Bypass level.
Buffer/Expander/Volume Control
BUFEX
Dimensions
Product
Weight
2-7/8" W x 4-5/8" H x 2-1/2" D 3 oz.
The SLC provides a simple and cost effective way to remotely control the volume
level of a network of up to 150 speakers. Simply wire in series with the audio
feed to the desired group of amplified speakers. For 24V systems.
Signal Level Control
SLC
• Continuously variable attenuator
• Rugged and attractive stainless steel
wall plate with engraved lettering
• Mounts in single gang wall box
• Easy and secure terminal strip
connections
• Passive (requires no DC power)
Product Features:
Dimensions
Product
Weight
2-7/8" W x 4-5/8" H x 2" D 2 oz.
See page 30
to select a
Power Supply.
www.bogen.com
29
SELF-AMPLIFIED SYSTEMS
LEVEL CONTROLS