BUFEX
Attenuator, Buffer, and Speaker Expander
for Self-Amplified Speakers
Features
•
Can drive up to
1
50 self-amplified speaker inputs
•
1
00V, 70V, 25V, and page port level selectable inputs
•
Bypass trim control for emergency paging
•
Continuously variable attenuator
© 2004 Bogen Communications, Inc.
54-2
1
23-0
1
B
Specifications subject to change without notice.
05
11
Description
The BUFEX is a continuously variable speaker attenuator that allows the volume of a network of
speakers to be remotely controlled.The BUFEX provides output buffering for up to
1
50 self-ampli-
fied speakers. It allows speaker system expansion for existing
1
00V, 70V, or 25V central amplifier
systems.
The unit includes a bypass function for overriding the volume control knob setting when
activated by a contact closure or open collector output. A bypass trim control adjusts the
volume when in bypass mode with a maximum of
1
2 dB of attenuation.The BUFEX fits into a sin-
gle gang electrical box.
Installation
1
. Make all the necessary electrical connections and jumper selection before installing unit.
2. Mount the unit to the electrical box using the 2 faceplate screws provided.
Package Contents
(
1
) Installation and Use Manual
(
1
) BUFEX Unit
(2) Faceplate Screws
