Polycom Vortex EF2211 User Manual

This command sets or queries the frequency parameter (in Hz) for the parametric equalizer (EQ)
filters on output channels 1, A, B, and T . Each channel has five bands of parametric EQ that can be
independently controlled.
The minimum and maximum values for the frequency parameter are 20 and 20000, respectively.
For filter types that have a center frequency (e.g., parametric), this parameter specifies the center
frequency. For filter types that have a cutoff frequency (e.g, highpass, lowpass, etc.), this parameter
specifies the cutoff frequency.
This command has the same format and restrictions as the
PEQOA command except that only one
parameter, the frequency, is specified instead of all the parameters. See the
PEQOA command for
more information. To set the frequency parameter for an input parametric EQ filter, use the
PEQIF
command. To set all the parameters for an input parametric EQ filter, use the
PEQIA command.
This command is saved to non-volatile memory only as part of a preset. The state of this command
will be restored after power-up only if a preset is saved and that preset is set to be the power-on
preset.
Example Description Status Message
S01PEQOF1,2,1250
Set frequency of parametric
EQ on output 1 , band 2 to
1250 Hz.
S01PEQOF1,2,1250
S01PEQOFB,1,?
Query current frequency
setting of parametric EQ on
output B , band 1.
S01PEQOFB,1,f , where f is the current
setting of the frequency parameter for the
parametric EQ on output B , band 1. If the
frequency parameter of this filter is set to the
same value given in the example above, then
the status message will be
S01PEQOFB,1,1250 .
8.125. PEQOG -- Set Gain Parameter for Specified
Parametric EQ Output Stage
This command sets or queries the gain parameter (in dB) for the parametric equalizer (EQ) filters on
output channels 1, A, B, and T . Each channel has five bands of parametric EQ that can be
independently controlled.
The minimum and maximum values for the gain parameter are -20 and 20, respectively.
This command has the same format and restrictions as the
PEQOA command except that only one
parameter, the gain, is specified instead of all the parameters. See the
PEQOA command for more
information. To set the gain parameter for an input parametric EQ filter, use the
PEQIG command. To
set all the parameters for an input parametric EQ filter, use the
PEQIA command.

Polycom Vortex EF2211 Specifications

Power

input voltage	110-240 VAC
frequency	47-63 Hz
power consumption	25 W
phantom power	24 V

Connectors

RS-232	DB9F
EF Bus In/Out	RJ45
Telephone Line/Set	RJ11
Control/Status	DB25F
Audio	3.5mm quick connect terminal blocks

Audio Specifications

microphone input	-30 dBu to +0 dBu
line inputs	-20 dBu to +0 dBu
line outputs	-20 dBu to +0 dBu
loudspeaker output	10 W, 4-16 Ohms
input impedance	10 k Ohms
output impedance	50 Ohms
headroom	20 dB
signal to noise ratio	85 dB
frequency response	20 Hz - 22 kHz

Echo and Noise Cancellation

total cancellation	65 dB
convergence rate	40 dB/second
noise cancellation	0-15 dB
echo cancellation	40 dB, total >65 dB
convergence	30 dB/second
cancellation span	32 ms
acoustic echo cancellation span	270 ms

Operating Environment

operating temperature	0 °C - 40 °C
status outputs	5 V, 20 mA each

Weight and Dimensions

width	483 mm
length	244 mm
height	45 mm
weight	1.8 kg
shipping weight	2.5 kg