Polycom Vortex EF2280 Reference Manual

INTEGRATING THE EF2280 INTO YOUR SYSTEM
VORTEX EF2280 Reference Manual 32 Technical Support: 800.765.9266
set the Exported Signals to REFERENCE 1. Only one device can put an echo
canceller reference on the EF Bus as the Bus Reference.
3. On all linked devices, set the echo canceller reference to B
US.
For example, a system uses 2 EF2280s, 1 Vortex EF2201 Phone Hybrid, and 1
Polycom VS4000 video codec. The originating sources for far end audio is
EF2280 with ID 0. The Matrix for this EF2280 in Conference Composer is
shown in Figure 12 and the EF Bus page in Figure 13. Conference Composer
will not allow more than one device assign their echo canceller reference as
the Bus Reference. Notice that the Phone audio and VS4000 inputs are both
assigned to Reference 1 on the originating EF2280. The Matrix for any linked
devices is shown in Figure 23.
Figure 21. Matrix page of origin EF2280 (ID 00) Figure 22. EF Bus page of EF2280 (ID 00)

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