5
3. OPERATION
The new bluetooth base station ALTAIR EB-200 is compatible with the ALTAIR E-200 cable
based intercom systems.
This new first on the market station allows the operation of bluetooth devices into the intercom
lines. Connection and operation are the same as a beltpack, just connect to the line and go.
The unit can connect with bluetooth headphones, bluetooth hands free, bluetooth mobile
phones and even with another ALTAIR EB-200 unit.
Mic level and ear level can be independent adjusted to meet a broad range of devices'
operation. Pairing is easily set-up by just the pushing of a button.
Applications include wireless replacement of a wired beltpack and headset, telephone
interface from mobile phone calls, small wireless intercom systems among others.
Operating range of the system depends of the headset device used or power class chosen.
In order to obtain the best performance, we recommend the use of class 1 devices, allowing a
line of sight operation of 60 to 100 meter. When using standard low cost headsets, class 2 devices,
the range will be reduced to 10 meters, but this would be enough for close communication as for
example the operating room in technical desk operators.
Another benefit of the system is the freedom to receive an external call from your mobile phone
in the same headset and the possibility to wear the mixer headphones over the bluetooth headset.
3.1 INTERCOM LINE CONNECTION
The intercom line connection takes place by means of shielded two-conductor microphone
cable type and XLR-3-31/XLR-3-32 connectors. The beltpack has a XLR-3-31 and a XLR-3-32
connectors wired internally in parallel. The next chart shows the distribution of the signals in the XLR
connectors
In the power consumption calculation, must be taken into account that the bluetooth base
station consume twice that the conventional EM-201 beltpack.
In the installation and connection of the intercom network it is necessary to keep in mind
important rules in order to avoid earth loops, minimize the power loss and the effect of
electromagnetic fields as much as possible:
Pin 1 should not be connected to the shell of the XLR connector.
Don't close the intercom line connection. Each intercom line leaves from the main station toward
the remote stations, but it doesn't return to the main station.
Use high quality cables and minimize its longitude. The DC resistance of a low quality cable or
with a great longitude affects to the power consumption, the channels crosstalk and the system
frequency response.
BLUETOOTH BASE STATION, E-200 SERIES INTERCOM SYSTEM
XLR-3-31/XLR-3-32 — INTERCOM LINE
PIN 1
0 V
PIN 2 +VCC
PIN 3
SIGNAL
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