Polycom Vortex EF2211 User Manual

status of all the microphone inputs. On the EF2211 and EF2210, there is only one microphone, so the
wildcard character is of limited use.
The
GATEEN can be used to have gating information sent automatically instead of having to poll this
command.
Also see the
CGATE command, which only reports microphones that have been gated on for a
specified hold time.
Example Description Status Message
S01GATE1?
Query gating status of microphone input 1.
S01GATE1? , where x is 0 or 1 depending
on whether the input is gated off or gated
on, respectively.
8.64. GATEEN -- Enable Automatic Gating Messages
This command controls whether or not gating information messages are sent automatically. If
GATEEN is enabled, then a GATE*? query is performed each time the gating status of any microphone
changes. For example, if no microphones are currently gated on and GATEEN is enabled, then if
microphone input 1 gates on, the following status message will be automatically generated:
S01GATE*1
See the
GATE command for more information.
This command is a boolean command. See
Section 6.1 for more information on this type of command.
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
S01GATEEN0
Disable automatic gating messages.
S01GATEEN0
S01GATEEN1
Enable automatic gating messages.
S01GATEEN1
S01GATEEN2
Toggle enabled state of automatic gating
messages.
S01GATEENx , where x is either 0 or 1
depending on whether automatic gating
messages are currently disabled or
enabled.
S01GATEEN?
Query enabled state of automatic gating
messages.
S01GATEENx , where x is either 0 or 1
depending on whether automatic gating
messages are currently disabled or
enabled.
8.65. GMUTEO -- Mute All Outputs

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