Polycom Vortex EF2280 User Manual

of command. The minimum and maximum values for this command are 1 and 8, 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
F01AMCHNUM14
Set microphone 4 as the chairman mic
for automixer 1.
F01AMCHNUM14
F01AMCHNUM21
Set microphone 1 as the chairman mic
for automixer 2.
F01AMCHNUM21
F01AMCHNUM1?
Query the current chairman mic for
automixer 1.
F01AMCHNUM1x, where x is between 1 and 8
depending on the current chairman mic setting for
automixer 1.
8.13. AMDECAY -- Set Decay Time for Automixers
This command sets or queries the decay time (in milliseconds) for both automixers. Note that the decay time is
set globally for both automixers.
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 5000, 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
F01AMDECAY500
Set automixer decay time to 500 ms.
F01AMDECAY500
F01AMDECAY>500
Increase automixer decay time by
500 ms.
F01AMDECAYx , where x is between 0 and 5000
depending on the current AMDECAY setting. If this
command is issued after the above example, then the
status message will be F01AMDECAY1000
F01AMDECAY?
Query automixer decay time.
F01AMDECAYx , where x is between 0 and 5000
depending on the current AMDECAY setting. If this
command is issued after the above example, then the
status message will be F01AMDECAY1000
8.14. AMGATEC -- Set Automixer Gating Control Mode
This command sets the automixer gating control mode for the specified input channel. The possible modes are:
● 0 - normal gating
● 1 - microphone forced on
● 2 - microphone forced off
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.

Polycom Vortex EF2280 Specifications

General

Rack capacity	1U
Frequency range	20 - 20000 Hz
Cancellation span	270 ms
Echo cancellation	65 dB
Phantom power	48 V
Nominal input level	0 dB
Output gain	-100 - 20 dB
Output impedance	33 Ω
Maximum output amplitude	23 dB
RS-232 ports	1
Audio connections	2 x 3.5mm
Parallel ports quantity	2
Input voltage	110 - 240 V
Output current	20 mA
Output voltage	5 V
Input frequency	47/63 Hz
Power consumption (typical)	30 W
Operating temperature (T-T)	0 - 40 °C

Weight and Dimensions

Weight	1800 g
Dimensions (WxDxH)	483 x 244 x 45 mm