Polycom Vortex EF2280 Reference Manual

LCD MENU STRUCTURE
VORTEX EF2280 Reference Manual 26 Technical Support: 800.765.9266
sents the level in dB the audio must be above the current ambient back-
ground noise to gate on the microphone. A value close to 0 makes it easy
to gate on, a value close to 100 makes it very difficult to gate on.
Microphone Priority. The priority of each microphone can be assigned
a value ranging from 1 to 4. Priority 1 microphones have priority over pri-
ority 4 microphones for gating. The default is to have all microphones set
to priority 1. If Chairman Mode is enabled, all microphones including ones
with priority of 1 will be gated off when the Chairman mic gates on.
M ATRIX M ENU
The MATRIX contains commands for assigning input signals to output signals
with appropriate gains applied or mutes applied. It also allows for Gating to
be turned on for Inputs 1-8. This menu can apply gains to both the M
AIN
M
ATRIX and the SUBMATRIX.
Crosspoint Gains. Assign input signals to output signals with appropri-
ate gains applied.
Gate. Applies gating from Inputs 1-8 to an Output.
Mute. Applies mute to the crosspoint.
Figure 16. EF2280
Matrix submenu
Matrix
Gain
Gate (In 1-8)
Mute
Main Matrix
Gain
Mute
SubMatrix

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