Polycom Vortex EF2211 User Manual

The Storage column contains one of the following values indicating when and where the parameter is
stored.
● "Global"
● "Preset"
● "-" = not stored or not applicable
Globally stored parameters are not changed when a preset is executed. Only one copy of a global
parameter is stored. Global parameters are written to non-volatile memory each time they are
changed. Globally stored parameters retain their values when the power is cycled.
Parameters stored in presets are changed each time a new preset is restored/executed. Preset
parameters are not saved in non-volatile memory until a
PRESETW command is executed. Parameters
stored in the power-on preset (see
PRESETP) are restored when the power is cycled.
Command Storage Description
AA
Preset Enable or Disable Auto Answer Mode
ACKMOD
Global Enable or Disable Acknowledgment Mode
AEC
Preset Enable or Disable Acoustic Echo Cancellation
AECMODE
Preset Set Amount of Double Talk Suppression used in the AEC.
AGC
Preset Enable or Disable Mic/Line Input Automatic Gain Control
AGCMAX
Preset Set Maximum Allowed Mic/Line Input AGC Gain
AGCMIN
Preset Set Minimum Allowed Mic/Line Input AGC Gain
AGCRATE
Preset Set Ramp Rate of Mic/Line Input AGC
AHCP
Preset Enable or Disable Call Progress Based Auto Hangup
AHLD
Preset Enable or Disable Loop Drop Based Auto Hangup
AMASGN
Preset Assign Inputs to an Automixer
AMAUTO
Preset Select Automatic or Manual Gating for each Automixer Input
AMBUSID
Preset Set Automixer Groupings for EF Bus
AMCHAIR
Preset Enable Chairman Mode for Specified Automixer
AMCHNUM
Preset Set Chairman Mic
AMDECAY
Preset Set Decay Time for Automixers
AMGATEC
Preset Set Automixer Gating Control Mode
AMGATER
Preset Set Automixer Gate Ratio
AMGATET
Preset Set Automixer Gate Threshold
AMGNOM
Preset Set Global Maximum Number of Open Mics for Bus Automixer
AMHOLD
Preset Set Automixer Hold Time
AMLMM
Preset Set Last Mic On Mode for Specified Automixer
AMLMN
Preset Set Microphone That Will Remain On in Manual Last Mic On Mode

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