Polycom Vortex EF2211 User Manual

This command is a channel integer command. See Section 6.3 and Section 6.2 for more information
on this type of command. The minimum and maximum values for this command are 0 and 100,
respectively.
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
S01AMGATER112
Set gate ratio for automatic gating
threshold to 12 dB for input
channel 1.
S01AMGATER112
S01AMGATER1>3
Increase gate ratio for automatic
gating threshold by 3 dB for input
channel 1.
S01AMGATER1x , where x is between 0 and
100 depending on the current setting of the
gate ratio for input channel 1. If this
command is issued after the example above,
then the status message will be
S01AMGATER115 .
S01AMGATER1?
Query gate ratio for automatic
gating threshold for input channel
1.
S01AMGATER1x , where x is between 0 and
100 depending on the current setting of the
gate ratio for input channel 1. If this
command is issued after the example above,
then the status message will be
S01AMGATER115 .
8.19. AMGATET -- Set Automixer Gate Threshold
This command sets the automixer gate threshold (in dB) for the specified input channel. The gate
threshold is the level that the input signal must reach in order to gate the microphone on. This value
us only used if the input is set to manual gating via the
AMAUTO command.
This command is a channel integer command. See
Section 6.3 and Section 6.2 for more information
on this type of command. The minimum and maximum values for this command are 0 and 100,
respectively.
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
S01AMGATET112
Set gate threshold for manual
gating threshold to 12 dB for input
channel 1.
S01AMGATET112

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