Polycom Vortex EF2211 User Manual

S01AMNOMAT11
Enable NOM attenuation on
output 1 .
S01AMNOMAT11
S01AMNOMATA0
Disable NOM attenuation on
output A.
S01AMNOMATA0
S01AMNOMATT2
Toggle NOM attenuation
status on output T (telephone
output) .
S01AMNOMATTx , where x is either 0 or 1
depending on the current mute status of NOM
attenuation on the ouptut.
S01AMNOMATB?
Query NOM attenuation status
of output B.
S01AMNOMATBx , where x is either 0 or 1
depending on the current NOM attenuation
status of the output.
S01AMNOMAT*1
Enable NOM attenuation on all
outputs (1, A, B, T) .
S01AMNOMAT*1111
S01AMNOMAT*0
Disable NOM attenuation on
all outputs (1, A, B, T) .
S01AMNOMAT*0000
S01AMNOMAT*1100
Enable NOM attenuation on
outputs 1 and A, and disable
NOM attenuation on outputs B
and T.
S01AMNOMAT*1100
S01AMNOMAT*2
Toggle status of NOM
attenuation on all outputs.
S01AMNOMAT*abcd , where each of the letters
(a, b, etc.) is either 0 or 1 depending of the
current status of NOM attenuation on the
corresponding output. If this command was
sent after the example above, then the status
message would be S01AMNOMAT*0011 .
S01AMNOMAT*?
Query NOM attenuation status
of all outputs.
S01AMNOMAT*abcd , where each of the letters
(a, b, etc.) is either 0 or 1 depending of the
current status of the NOM attenuation on the
corresponding output. If this command was
sent after the example above, then the status
message would be S01AMNOMAT*0011 .
8.26. AMOFFAT -- Set Off Attenuation for the Specified
Automixer
This command sets the off attenuation (in dB) for the specified automixer. Setting this value to 18
would result in the microphone signals being attenuated by 18 dB when gated off. This value is set
independently for each of the automixers. The first argument of this command specifies the automixer
number (1-2) to adjust. The second argument specifies the off attenuation.
Even though this is a channel integer command, use of the wildcard for specifying 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 100,
respectively.

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