Polycom Vortex EF2211 User Manual

the parametric equalizer (EQ) filters on input channels 1, A, B, and T . Each channel has five bands of
parametric EQ that can be independently controlled.
This command has the same format and restrictions as the
PEQIA command except that only one
parameter, the enabled status, is specified instead of all the parameters. See the
PEQIA command for
more information. To set the enabled parameter for an output parametric EQ filter, use the
PEQOE
command. To set all the parameters for an output parametric EQ filter, use the
PEQOA 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
S01PEQIE1,2,1
Enable parametric EQ on input 1 ,
band 2.
S01PEQIE1,2,1
S01PEQIEB,1,?
Query enabled status of
parametric EQ on input B , band
1.
S01PEQIEB,1,e , where e is the current
setting of the enabled parameter for the
parametric EQ on input B , band 1. If the
enabled parameter of this filter is set to the
same value given in the example above, then
the status message will be S01PEQIEB,1,1 .
8.117. PEQIF -- Set Frequency Parameter for Specified
Parametric EQ Input Stage
This command sets or queries the frequency parameter (in Hz) for the parametric equalizer (EQ)
filters on input 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
PEQIA command except that only one
parameter, the frequency, is specified instead of all the parameters. See the
PEQIA command for
more information. To set the frequency parameter for an output parametric EQ filter, use the
PEQOF
command. To set all the parameters for an output parametric EQ filter, use the
PEQOA 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

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