Page 1
Audio Expanders
EX-AEC, EX-IN, EX-OUT & EX-IO
OPERATION MANUAL
April 2019
Page 2
AUDIO EXPANDER PRODUCT DESCRIPTION
The Tesira® EX-IN, EX-AEC, EX-OUT, and EX-IO are half-rack expander units for use with Tesira SERVER, SERVERIO, and TesiraFORTÉ AVB devices. Each expander provides a total of 4 channels of analog audio. The EX-IN is a 4channel mic/line level input expander, and the EX-AEC is a 4-channel mic/line level input expander with AEC (acoustic
echo cancellation). The EX-OUT is a 4-channel mic/line level output expander, and the EX-IO provides two channels of
mic/line level input and two channels of mic/line level output. The expanders communicate with the Tesira AVB network
for audio networking, configuration and control, and are powered by PoE+.
Page 3
AUDIO EXPANDER FRONT PANEL
S
etup and Use
The Tesira software provides an intuitive interface for setup and programming of the audio expanders. The information
supplied by this manual relates to physical connections and device setup. For more details on software setup, please
consult the Tesira Help File.
LED Status Indicators
Four multi-color LEDs on the front panel of the device provide information about the status of the device and the greater
Tesira system.
• Power – Reports power of the host device and Front Panel Display.
• Alarm – Reports abnormal conditions local to the host device.
• Activity – Reports the activity of host device within the greater system.
• Status – Reports the status of host device.
LED Off Green Yellow Red
Power
Alarm
Activity
Status
Unit is not powered
No fault is active in the
device
Not applicable
Not applicable
Unit is powered
Not applicable
The host device is an
active part of an active
system
Device has received its
configuration and is ready
to participate in the system
Not applicable
Minor fault is active in
the device
Not applicable
Device is ready and
waiting to receive a
configuration
Not applicable
Major fault is active
in the device
The host device is part
of an inactive system
(Audio is stopped) or
host device is not part
of a system
Device is not ready to
receive its configuration
Page 4
AUDIO EXPANDER REAR PANEL
EX-IO expander pictured. The type and number of inputs and outputs
will vary depending on expander model
1. Grounding pin
This pin is for grounding the chassis of the expander
2. AVB/Control Connection
Uses a standard RJ-45 connector with CAT-5, CAT-5e, CAT-6 or CAT-7 cabling.
This connection is for PoE+, sending and receiving AVB audio signals as well as sending and receiving data between the
expander device and the Tesira system. An expander will not operate if it is not on a network that includes a Server-Class
Tesira device.
The maximum distance between any unit and an Ethernet switch is 328 feet (100 meters).
3. Audio Connections
The connections are electrically balanced and are configured for use with shielded-twisted-pair wiring. The wires are to be
terminated in the three-pin removable
connectors according to the wiring diagram shown on the unit. The wiring diagram is also
displayed on the connectors themselves. The connectors may then be inserted into the mating connectors on the
expander. In the illustration above, channel one is shown without the
removable connector inserted.
Input connections (channels 1 or 2 on the EX-IO and channels 1-4 on the EX-IN and EX-AEC) are for
connecting analog mic or line level audio signals to the Tesira system. The connections are
balanced and can provide Phantom power if necessary by software control.
Output connections (channels 3 or 4 on the EX-IO and channels 1-4 on the EX-OUT) are for sending analog audio signals
from the Tesira system to other audio devices at either mic level or scalable line level.
Loading...