Polycom Vortex EF2211 User Manual

8.40. COUNTRY -- Specify Country Definitions for Phone
Interface
This command is used to set or query the country that the Vortex is configured for operation in. The
country setting affects parameters associated with the phone interface including transmit and receive
impedances, flash hook timing, timing thresholds for detecting hangup based on loop current drop,
timing thresholds for detecting incoming rings, and outgoing DTMF levels.
The following table lists the numeric values for this command and the associated countries.
Command Value Country
0
Undefined
1
USA
More countries will be added as the Vortex is approved for operation in other countries.
This command is an integer command. See
Section 6.2 for more information on this type of
command. The minimum and maximum values for this command are 0 and 1, respectively.
This command is saved to global non-volatile memory and is not part of a preset. Its value is saved
each time it is changed. It will retain its value after power-down. Since this command writes to non-
volatile memory, there will be a delay before an acknowledgment is returned.
Example Description Status Message
S01COUNTRY1
Set country definition to USA.
S01COUNTRY1
S01COUNTRY?
Query current country setting.
S01COUNTRYx , where x is one of the numbers in
the above table that corresponds to the current
country setting.
8.41. DELAYO -- Set Output Delay
This command sets the amount of output delay (in tenths of milliseconds) on each of the four output
channels (1, A, B, T) . Use of the wildcard character (*) for specifying the channel is not supported for
this command. The output delay can be separately enabled or disabled via the
DELAYOE command.
This command is an integer command. See
Section 6.2 for more information on this type of
command. The minimum and maximum values for this command are 0 and 3400, 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

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