Polycom Vortex EF2280 User Manual

F01GAINGIM7
Set gain of all mic inputs to 7 dB.
F01GAINI17
F01GAINI27
F01GAINI37
F01GAINI47
F01GAINI57
F01GAINI67
F01GAINI77
F01GAINI87
F01GAINGIM>3
Increase incoming gain on all mic inputs by
3 dB.
F01GAINI1a
F01GAINI2b
F01GAINI3c
F01GAINI4d
F01GAINI5e
F01GAINI6f
F01GAINI7g
F01GAINI8h ,
where a, b, c, d, e, f, g, and h are the new
values of each of the mic inputs. If this command
was issued after the example above, then the
status messages would be:
F01GAINI110
F01GAINI210
F01GAINI310
F01GAINI410
F01GAINI510
F01GAINI610
F01GAINI710
F01GAINI810 .
F01GAINGIM?
Query gains on all mic inputs.
F01GAINI1a
F01GAINI2b
F01GAINI3c
F01GAINI4d
F01GAINI5e
F01GAINI6f
F01GAINI7g
F01GAINI8h ,
where a, b, c, d, e, f, g, and h are the new
values of each of the mic inputs. If this command
was issued after the example above, then the
status messages would be:
F01GAINI110
F01GAINI210
F01GAINI310
F01GAINI410
F01GAINI510
F01GAINI610
F01GAINI710
F01GAINI810 .
8.50. GAINI -- Set Input Gain
The input channels of the Vortex pass through an analog gain stage before reaching the analog to digital
converter. The gain of this stage is adjustable via a digitally controlled analog trim pot. It is important that this

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