Polycom Vortex EF2211 User Manual

This command is a matrix boolean command. See Section 6.4 and Section 6.1 for more information on
this type of 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
S01MGATE1,A,1
Select the gated version of
microphone input 1 to be sent to
output A.
S01MGATE1,A,1
S01MGATE1,A,0
Select the ungated version of
microphone input 1 to be sent to
output A.
S01MGATE1,A,0
S01MGATE1,A,2
Toggle the gated status of the
crosspoint that routes microphone
input 1 to output A.
S01MGATE1,A,x , where x is 0 or 1
depending on the current gated status of the
crosspoint.
S01MGATE1,A,?
Query the gated status of the
crosspoint that routes microphone
input 1 to output A.
S01MGATE1,A,x , where x is 0 or 1
depending on the current gated status of the
crosspoint.
8.102. MIC -- Enable Microphone Gain Stage on Input 1
This command sets or queries the enabled state of the microphone gain stages on the microphone
input. Enabling the gain stage adds an extra 33 dB of gain in the input signal path. See the description
of the
GAINI command for information on how the MIC and GAINI commands relate to nominal
input levels.
This command is a channel boolean command. See
Section 6.3 and Section 6.1 for more information
on this type of 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
S01MIC11
Enable microphone gain stage for input
channel 1.
S01MIC11
S01MIC10
Disable microphone gain stage for input
channel 1.
S01MIC10
S01MIC12
Toggle microphone gain stage for input
channel 1.
S01MIC1x , where x is 0 or 1 depending
on the current enabled state of the
microphone gain stage on input channel
1.

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