Polycom Vortex EF2211 User Manual

S01AMGATET1>3
Increase gate threshold for
manual gating threshold by 3 dB
for input channel 1.
S01AMGATET1x , where x is between 0 and
100 depending on the current setting of the
gate threshold for input channel 1. If this
command is issued after the example above,
then the status message will be
S01AMGATET315 .
S01AMGATET1?
Query gate threshold for manual
gating threshold for input channel
1.
S01AMGATET1x , where x is between 0 and
100 depending on the current setting of the
gate threshold for input channel 1. If this
command is issued after the example above,
then the status message will be
S01AMGATET115 .
8.20. AMGNOM -- Set Global Maximum Number of Open Mics
for Bus Automixer
This command sets the global maximum number of open mics (NOM) allowed for the specified bus
automixer. The NOM limit is a global limit, meaning that this applies to all bus automixers with the
same
AMBUSID. In contrast, the AMNOM command is a local limit that applies to the local automixer in
the EF2211.
The first argument of this command specifies the automixer number (always 1 in the EF2211) to
adjust. The second argument specifies the NOM limit (1-64). 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 64,
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
S01AMGNOM13
Set global NOM for the automixer to a
maximum of 3 mics.
S01AMGNOM13
S01AMGNOM1?
Query current global NOM limit for the
automixer.
S01AMGNOM1x , where x is between 1 and
64 depending on the current setting of the
global NOM limit for the automixer.
8.21. AMHOLD -- Set Automixer Hold Time
This command sets or queries the hold time (in milliseconds) for the automixer.

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