Polycom Vortex EF2211 User Manual

S01AMLMM10
Disable "last mic on" mode for automixer
1.
S01AMLMM10
S01AMLMM11
Set "last mic on" mode to manual for
automixer 1.
S01AMLMM11
S01AMLMM12
Set "last mic on" mode to automatic for
automixer 1.
S01AMLMM12
S01AMLMM1?
Query the current setting of "last mic on"
mode for automixer 1.
S01AMLMM1x , where x is 0, 1, or 2
depending on the current setting of "last
mic on" mode for automixer 1. If this
command is issued after the example
above, then the status message will be
S01AMLMM12 .
8.23. AMLMN -- Set Microphone That Will Remain On in
Manual Last Mic On Mode
This command sets the microphone number that will remain on when "last mic on" mode is set to
manual (see the
AMLMM command). The first argument to this command is the number of the
automixer (always 1 on the EF2211) that will be adjusted. The second argument is the microphone
number (always 1) that should be gated on if no other mics are gated on and
AMLMM is set to manual.
The value of the AMLMN command is only valid when
AMLMM is set to manual.
This command is not particularly useful on the EF2211 since there is only one mic on this device.
However, it is provided in order to be consistent with the command sets of the other Vortex devices.
Even though this is a channel integer command, use of the wildcard character for the automixer
number is not supported.
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 1 and 8,
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
S01AMLMN11
Set microphone 1 as the manual last mic
on for automixer 1.
S01AMLMN11
S01AMLMN1?
Query the current manual last mic on
number mic for automixer 1.
S01AMLMN1x , where x is always 1, since
there is only 1 mic on this device.
8.24. AMNOM -- Set Local Maximum Number of Open Mics

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