Operation Manual

EF2211/EF2210 BLOCK DIAGRAM
© Polycom, Inc. 51 VORTEX EF2211/EF2210 Reference Manual
EF2210
Figure 29. Inside the EF2210
RS-232
EF Bus
Matrixing
A/D
Level
adjust
+-
EN
Mic/Line
Phantom
Echo
Canceller
Noise
Canceller
R1, R2, Bus
EN (Echo Canceller, Noise Canceller)
PEQ GateMute
Gated
Ungated
AGC
On OffOn OffOn Off
Parameters
Parameters
A/D
Level
adjust
+-
PEQ
1B
Line
D/A
+-
B
PEQ
Line
D/A
+-
A
PEQ
A/D
Level
adjust
+-
PEQ
A
Line
D/A
+-
1
PEQ
+-
Amplifier
Output
AMP