Polycom Vortex EF2211 User Manual

S01AMDECAY>500
Increase automixer decay time
by 500 ms.
S01AMDECAYx , where x is between 0 and
5000 depending on the current AMDECAY
setting. If this command is issued after the
above example, then the status message will
be
S01AMDECAY?
Query automixer decay time.
S01AMDECAYx , where x is between 0 and
5000 depending on the current AMDECAY
setting. If this command is issued after the
above example, then the status message will
be S01AMDECAY1000
8.17. AMGATEC -- Set Automixer Gating Control Mode
This command sets the automixer gating control mode for the specified input channel. The possible
modes are:
● 0 - normal gating
● 1 - microphone forced on
● 2 - microphone forced off
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 2,
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
S01AMGATEC10
Configure microphone input 1 for
normal gating.
S01AMGATEC10
S01AMGATEC11
Configure microphone input 1 to be
forced on.
S01AMGATEC11
S01AMGATEC12
Configure microphone input 1 to be
forced off.
S01AMGATEC12
S01AMGATEC1?
Query current gating control mode
for microphone input 1.
S01AMGATEC3x , where x is 0, 1, or 2
depending on the current gating control
mode setting for microphone input 1.
8.18. AMGATER -- Set Automixer Gate Ratio
This command sets the automixer gate ratio (in dB) for the specified input channel. The gate ratio is
the ratio of the speech power to noise power required to gate the microphone on. This value is only
used if the input is set to automatic gating via the
AMAUTO.

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