Operation Manual

INTEGRATING THE EF2280 INTO YOUR SYSTEM
© Polycom, Inc. 23 VORTEX EF2280 Reference Manual
Operating as an
Independent
Automixer
To set the EF2280 to operate as an independent automixer (or two), set the BUS
M
IXER parameter to 0, or to a number that is different from any other automixer group
on the EF Bus.
Operating as One
Automixer with
Multiple EF2280s
To set the EF2280 to operate as one automixer across several EF2280s, set the BUS
M
IXER parameter on all EF2280s to the same automixer group.
Default Settings In the default preset (Preset 0), the Bus Mixer for Automixer 1 is set to 1 and the Bus
Mixer for Automixer 2 is set to 2. This means that in the default mode, all linked
EF2280s will work together as one complete automixer.
C ONFIGURE THE M ATRIX M IXER
The matrix mixer allows arbitrary crosspoint gains in 1 dB increments between any
input and output signal.
If you have a PC, use the Conference Composer software (See the Conference Com-
poser User Guide) to set the matrix parameters. If you would like to set matrix
parameters from the LCD menus, see “Matrix Menu” on page 34 for descriptions and
instructions on setting matrix mixer parameters.
B UILDING Y OUR S YSTEM WITH M ULTIPLE EF2280 S
The following is a checklist for building a system with mutliple EF2280s:
1. Assign Inputs.
2. Assign Outputs.
3. Configure submatrix (the EF Bus).
4. Configure your echo canceller reference.
1. Assign Inputs Assign each audio source to an input. Remember to include the conferencing equip-
ment such as the EF200 Phone Add or a video codec and any program audio.
2. Assign Outputs Try to assign as many outputs as you can to each EF2280 to make a simpler subma-
trix. Remember that Outputs 1-8 can also be used as outputs of the matrix. The bus-
sing can get very complicated very quickly if you choose to spread your outputs over
several units.
3. Configure the
submatrix.
To link multiple EF2280 devices together, use the submatrix on the EF Bus.