Polycom Vortex EF2211 User Manual

off-hook or busy tones and hangs up the phone if they are detected. The loop drop method looks for
a drop in loop current on the phone line and hangs up the phone if a loop current drop is detected.
The
AHCP command controls the call progress auto hangup feature. The AHLD command controls the
loop drop auto hangup feature. These two features are controlled and implemented independently.
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
S01AHLD1
Enable loop drop based auto hangup mode.
S01AHLD1
S01AHLD0
Disable loop drop based auto hangup mode.
S01AHLD0
S01AHLD2
Toggle loop drop based auto hangup mode.
S01AHLDx , where x is 0 or 1 depending
on the current state of the loop drop based
auto hangup mode.
S01AHLD?
Query auto hangup mode.
S01AHLDx , where x is 0 or 1 depending
on the current state of the loop drop based
auto hangup mode.
8.11. AMASGN -- Assign Inputs to an Automixer
This command is used to assign the mic/line inputs (1) to an internal automixers. Setting AMASGN to 0
for a given input channel corresponds to no automixer, and 1 corresponds to Automixer #1 .
Although this command is a channel integer command, the increment and decrement operators (>
and <) are not supported for this particular command.
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 0 and 2,
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
S01AMASGN11
Assign input 1 to automixer #1.
S01AMASGN11
S01AMASGN1?
Query current automixer assignment
for channel 1.
S01AMASGN1x , where x is 0, 1, or 2
depending on the current automixer
assignment for channel 1. If this command
is issued after the example above, then the
status message will be S01AMASGN11 .

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