Specifications

Bosch Security Systems B.V.
38 | Other Applicable Congress Products
www.boschsecurity.com
PRS-4DEX4 Audio Expander
Digital
Features
X Stylish and modern design (IF award)
X Room coupling facility
X Versatile audio distribution facility
X AES/EBU or SPDIF
X Sample-rate converters (8 – 96 kHz)
X Optical network coupling
X Redundant network capability
Introduction
The digital audio expander can contribute audio to and
distribute audio from the system. Typical applications are
room coupling and audio distribution.
Functions
• Automatic Gain Control
• Audio input channels for floor and interpretation
channels
• Audio output channels for floor and interpretation
channels (16-bit 44.1 kHz)
• Flexible routing of floor and interpretation channels
• Configuration of the Digital Audio Expander via a display
and a single rotary push button
• Each Digital Audio Expander can be assigned a unique
name by the installer for easy identification
• VU meter readings to monitor audio inputs and audio
outputs. The audio can be monitored using headphones
• 19” (2U) housing for tabletop or rack mounting
• Handgrips for easy transportation
• Unit is powered from the network
Controls and Indicators
• 2 x 16 Character LCD display for status display and
configuration of the Audio Expander
• Rotary control to navigate through the LCD menus
Interconnections
Front
• One stereo headphone output 3.5 mm (0.14 in)
Back
• Two optical network connections for connecting to CCU
• Two 3-pole XLR AES/EBU stereo inputs for 2 audio
channels per input
• Two Cinch SPDIF stereo inputs for 2 audio channels per
input
• Two 3-pole XLR AES/EBU stereo outputs for 2 audio
channels per output
• Two Cinch SPDIF stereo outputs for 2 audio channels per
output
• Eight control inputs to enable audio inputs and audio
outputs
• Five control outputs to indicate channel engaged state
Parts Included
Technical Specifications
Quant. Component
1 PRS-4DEX4 Digital Audio Expander
1 Set of mounting brackets for 19” rack
1 Set of feet
1 Set of connectors
Electrical
Supply voltage 24 to 48 VDC
Power consumption 6 W
Frequency response 30 Hz - 20 kHz
THD at nominal level < 0.5 %
Mechanical
Mounting Tabletop or mounted in a 19” rack
Dimensions (H x W x D)
for tabletop use, with feet
for 19” rack use, with brackets
in front of brackets
behind brackets
92 x 440 x 400 mm
(3.6 x 17.3 x 15.7 in)
88 x 483 x 400 mm
(3.5 x 19 x 15.7 in)
40 mm (1.6 in)
360mm (14.2in)
Weight 6kg (13.2lbs)
Color Charcoal (PH 10736) with silver
Ordering Information
PRS-4DEX4 Audio Expander Digital PRS-4DEX4