Polycom Vortex EF2280 Reference Manual

INTEGRATING THE EF2280 INTO YOUR SYSTEM
VORTEX EF2280 Reference Manual 36 Technical Support: 800.765.9266
A UTOMIXER S ETTINGS FOR M ULTIPLE V ORTEX D EVICES
When using more than one Vortex device in your room system, you have sev-
eral possibilities for how you configure the automixer. Each device can oper-
ate as one of the following:
• One automixer, independent of other devices linked to it
• Two automixers, independent of other devices linked to it
• One large automixer, sharing automixer functions with other devices
linked to it
• Two large automixers, sharing automixer functions with other devices
linked to it
Automixer and
Bus Mixer
Settings
To operate the Vortex device in any of the above possibilities, two global
parameters need to be changed: the A
UTOMIXER and the BUS MIXER (see Figure
25). The A
UTOMIXER parameter chooses which automixer the input channel
will be on (this is changed either on the A
UTOMIXER page in Conference Com-
poser or on the M
ATRIX MIXER page).
The B
US MIXER parameter is used to assign one of the two internal automixers
to one of the EF Bus automixer groups. For example, consider three Vortex
devices, each of which has 4 microphones assigned to Automixer 1 and 4
microphones assigned to Automixer 2. Now, if each of these devices sets their
Automixer 1 to have Bus ID 5, then the three automixers (one from each
device) will work as a single automixer containing 12 (3 x 4) microphones.
Setting B
US MIXER to 0 means that the automixer is not grouped on the EF
Bus.
Operating as an
Independent
Automixer
To set the Vortex device to operate as an independent automixer (or two), set
the B
US MIXER parameter to 0, or to a number that is different from any other
automixer group on the EF Bus.
Operating as One
Automixer with
Multiple Vortex
Devices
To set the Vortex device to operate as one automixer across several devices,
set the B
US MIXER parameter on all devices to the same automixer group.
Figure 25. Vortex Automixer Settings in Conference Composer Software

Polycom Vortex EF2280 Specifications

General

Rack capacity	1U
Frequency range	20 - 20000 Hz
Cancellation span	270 ms
Echo cancellation	65 dB
Phantom power	48 V
Nominal input level	0 dB
Output gain	-100 - 20 dB
Output impedance	33 Ω
Maximum output amplitude	23 dB
RS-232 ports	1
Audio connections	2 x 3.5mm
Parallel ports quantity	2
Input voltage	110 - 240 V
Output current	20 mA
Output voltage	5 V
Input frequency	47/63 Hz
Power consumption (typical)	30 W
Operating temperature (T-T)	0 - 40 °C

Weight and Dimensions

Weight	1800 g
Dimensions (WxDxH)	483 x 244 x 45 mm