Polycom Vortex EF2211 User Manual

Example Description Status Message
Put AEC Reference 1 (R1) on the EF Bus.
Set Vortex to not place any AEC reference on
the EF Bus.
S01BUSREF?
Query which AEC reference this Vortex is
placing on the EF Bus.
, where x is 0 or 1 depending on
which AEC reference (if any) is
currently being placed on EF Bus.
8.37. CGATE -- Query Camera Gating Status Information
This command is used to query the gating status of the microphone input. It is identical to the GATE
command except that any given microphone must be gated on for a specified hold time in order for it
to be considered "on" by the CGATE command. A typical use for this command is to control camera
pointing based on microphone activity. The added hold time prevents the camera from jumping too
quickly between positions when there are short amounts of signal present.
The
CGATET specifies the hold time used for the gating decisions in this command. The CGATEEN can
be used to have gating information sent automatically instead of having to poll this command.
Example Description Status Message
S01CGATE1?
Query camera gating status of
microphone input 1.
, , S01CGATE1x where x is 0 or 1
depending on whether the input is gated off
or gated on, respectively.
S01CGATE*?
Query camera gating status of all
microphone inputs.
S01CGATE*x , where x is either 0 or 1
depending on whether the corresponding
microphone input is gated off or gated on,
respectively.
8.38. CGATEEN -- Enable Automatic Camera Gating
Messages
This command controls whether or not camera gating information messages are sent automatically. If
CGATEEN is enabled, then a CGATE*? query is performed each time the camera gating status of any
microphone changes.
For example, if the microphone is currently gated off and CGATEEN is enabled, then if the microphone
gates on, the following status message will be automatically generated:
S01CGATE*1
See the
CGATE command for more information.
This command is a boolean command. See
Section 6.1 for more information on this type of command.

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