Polycom Vortex EF2211 User Manual

Example Description Status Message
S01GAINIA10
Set gain on
input A to
10 dB.
S01GAINIA10
S01GAINIA?
Query the
gain on
input A.
F01GAINI2xB01GAINITxS01GAINIAxQ01GAINIAxT01GAINITx,
where x is a number between 0 and 30, depending on the current
setting of the gain on input channel A.
S01GAINI*6
Set gain on
all inputs (1,
A, B, T) to 6
dB.
S01GAINI*èèèè
S01GAINI*ìääì
Set gain on
input
channels A
and B to 0
dB and gain
on input
channels 1
and T to 9
dB.
S01GAINI*ìääì
S01GAINI*?
Query gain
on all inputs
(1, A, B, T) .
S01GAINI*abcd, where a-d are each between ä and ÿ, depending
on the current setting of the gains for each of the four input
channels.
8.59. GAINO -- Set Output Gain
This command sets or queries the gain (in dB) of the four output channels (1, A, B, T) .
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 -100 and 20,
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
S01GAINOA10
Set gain on output channel A to
10 dB.
S01GAINOA10
S01GAINOA?
Query the gain on output channel
A .
, , S01GAINOAx where x is a number between
-100 and 20, depending on the current setting
of the gain on output channel A .
S01GAINO*6
Set the gain on all output
channels (1, A, B, T) to 6 dB.
S01GAINO*èèèè

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