Polycom EF2280 Manuel d'utilisateur télécharger pdf (Page 5)

BUILDING YOUR SYSTEM WITH MULTIPLE VOR-

Applications and Presets Guide

UILDING

OUR

YSTEM

WITH

ULTIPLE

ORTEXES

The following is a checklist for building a system with multiple Vortexes:

1. Assign Inputs.

2. Assign Outputs.

3. Configure submatrix (the EF Bus).

4. Configure your echo canceller reference.

1. A

SSIGN

NPUTS

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. A

SSIGN

UTPUTS

Try to assign as many outputs as you can to each Vortex to make a simpler submatrix.

Remember that Outputs 1-8 can also be used as outputs of the matrix. The bussing

can get very complicated very quickly if you choose to spread your outputs over sev-

eral units.

3. C

ONFIGURE

THE

SUBMATRIX

To link multiple Vortex devices together, use the submatrix on the EF Bus.

The EF Bus

The EF Bus is a high speed, low delay digital bus that includes the W, X, Y, and Z

audio busses as well as the echo canceller reference and remote control information

(for other Vortexes) and can link up to 8 Vortex devices. All busses include NOM

information and can be used for sharing microphone inputs, or for sharing mono or

stereo program information.

Crosspoint Mix Minus Bus.

Each Vortex device in the system can create four

output mixes (W, X, Y, and Z) and place them on the bus. Each device also can create

three input mixes each from the W, X, Y, and Z busses of the other devices (for a total

of 12 mixes). The mixes can have crosspoint gains on the signals from the other

devices. See Figure 1 below. All 12 mixes become inputs to the main matrix and can

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Polycom EF2280 Manuel d'utilisateur Page 5