INSTALLATION
© Polycom, Inc. 11 VORTEX EF2211/EF2210 Reference Manual
Presets and 
Multiple Vortex 
Devices
PRESET 0 is preconfigured for a system with multiple Vortex devices.  In Preset 0, the 
microphone is bussed out to other units on the W Bus.  Microphones are also input 
into each device on the W Bus (I
NPUT WM0 in the Matrix).
If you have multiple devices in your system, save settings to a user preset (Presets 16-
47) on each device.  Saving a preset will only save the preset on that particular unit so 
save the preset to each Vortex device.  Also, remember to set the P
OWER ON PRESET 
on each device to the User Preset that you have saved your settings to otherwise the 
device will revert back to Preset 0 (factory default) if power is lost.
C
HECK
 S
URROUNDING
 E
QUIPMENT
Now that the physical connections to the EF2211/EF2210 are set up, it may be neces-
sary to check the surrounding equipment to make sure levels are set correctly.  The 
following suggestions may be helpful in integrating the EF2211/EF2210 into your 
system:
Pick a Standard 
Signal Level
A standard nominal signal level should be used throughout the audio system.  Any 
equipment that does not operate at this standard level should be compensated for as 
Entry and Exit Tone Enable
On
PHONE INPUT (INPUT T), EF2211 ONLY
Automatic Gain Control (AGC) On
AGC Maximum 12 dB
AGC Minimum -6 dB
AGC Rate 1 dB/s
Phone Input Gain 0 dB
Mute Off
Noise Cancellation On
Noise Cancellation Level 5 dB
Line Echo Cancellation On
Dynamics Processing On
Filtering Off
PHONE OUTPUT (OUTPUT T), EF2211 ONLY
Mute Off
Phone Output Gain 0 dB
Dynamics Processing On
Filtering Off
PROGRAM PARAMETERS FACTORY DEFAULT PRESET VALUE