Polycom EF2280 User Manual
Vortex EF2280
Applications and Presets Guide
Copyright © 2001 Polycom, Inc. All rights reserved. Printed in the United States of America. Because of technical
progress, specifications are subject to change without notice.
®
The Polycom logo and Vortex
are registered trademarks of Polycom, Inc..
Polycom, Inc.
Installed Voice Business Group
1720 Peachtree Street NW, Suite 220
Atlanta, GA 30309-2439
Phone: (800) 932-2774, (404) 892-3200
Fax: (404) 892-2512
www.aspi.com
Technical Support:
(800) 932-2774
vortex@polycom.com
VORTEXAPPGUIDE-0100-01
VORTEX® APPLICATIONS AND PRESETS GUIDE
Introduction....................................................................................................2
Building Your System with Multiple Vortexes® ..........................................3
1. Assign Inputs....................................................................................................... 3
2. Assign Outputs.................................................................................................... 3
3. Configure the submatrix ..................................................................................... 3
4. Configure Your Echo Canceller Reference ........................................................ 4
Automixer Settings for Multiple Vortexes............................................................... 5
Connecting Multiple Vortexes ................................................................................ 7
Presets ............................................................................................................10
Polycom, Inc., Copyright 2001 Technical Support: (800) 932-2774 1
NTRODUCTION
I
INTRODUCTION
This manual describes useful application information and the factory presets of the
®
Vo r t e x
• Building Your System with Multiple Vortexes® outlines things you need to con-
•Presets shows Factory Presets 0-6 in block diagram form and matrix settings.
. The following is an overview of each section:
sider as you build a system with mulitple Vortex units.
These are meant to be used as examples. Vortex Factory Presets include the following:
• Factory Preset 0: D
EFAULT
. Inputs 1-8 direct out; Inputs A-D mix minus to
Outputs A-D for room audio, codec, Phone Add, and/or program audio.
• Factory Preset 1: D
• Factory Preset 2: S
EFAULT
PLIT
, S
. Default configuration with stereo.
TEREO
. Vortex split between 2 rooms. Inputs 1-4, Output 1
go to Room 1; Inputs 5-8, Output 5 to Room 2. Input/Output A-B and Input/
Output C-D for codec and Phone Add in each room.
• Factory Preset 3: R
ESERVED
• Factory Preset 4: 8 M
.
ICS/ZONE
. For applications with 8 microphones per
loudspeaker zone.
• Factory Preset 5: 8/Z
• Factory Preset 6: 4 M
, S
ONE
TEREO
ICS/ZONE
. 8 mics/zone with stereo.
. For applications with 4 microphones per
loudspeaker zone.
• Factory Preset 7-12: R
• Factory Preset 13: P
ASSTHROUGH MIC
ESERVED
for future use.
. Passthrough mode (Inputs 1-8, A-D
are direct out) with Inputs 1-8 set to Mic level. Everything else is disabled.
• Factory Preset 14: P
ASSTHROUGH LINE
. Passthrough mode (Inputs 1-8, A-D
are direct out) with Inputs 1-8 set to Line level. Everything else is disabled.
• Factory Preset 15 B
LANK SLATE
. All crosspoints muted. Everything dis-
abled.
Vortex
®
Applications and Presets Guide 2 Technical Support: (800) 932-2774
BUILDING YOUR SYSTEM WITH MULTIPLE VOR-
UILDING YOUR SYSTEM WITH
B
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 INPUTS
Assign each audio source to an input. Remember to include the conferencing equipment such as the EF200 Phone Add or a video codec and any program audio.
2. A
SSIGN OUTPUTS
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 several units.
ULTIPLE VORTEXES
M
®
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.
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
Each Vortex device in the system can create four
© Polycom, Inc. 3 Vortex
®
Applications and Preset s Guide
BUILDING YOUR SYSTEM WITH MULTIPLE VOR-
be mixed with the other inputs to create Outputs 1-8, A-D, Ref 1, Ref 2, and W, X, Y,
and Z bus outputs.
Submatrix
Bus W
Bus X X
Bus Y Y
Bus Z Z
WB0WB1WB2WB3WB4WB5WB6WB7
0XB1XB2XB3XB4XB5XB6XB7
B
0YB1YB2YB3YB4YB5YB6YB7
B
0ZB1ZB2ZB3ZB4ZB5ZB6ZB7
B
Figure 1. W, X, Y, and Z submatrices.
EF Bus Reference.
same echo canceller reference, one device should be designated to put its echo canceller reference (either Ref 1 or Ref 2) on the EF bus to be used as the EF Bus Reference.
All other Vortexes
cellers, or they can use their own internal references. The references may include a
mix of any input, with crosspoint gains, including W, X, Y, and Z busses.
In a system with multiple devices, if all devices need the
may use the EF bus reference as the reference for their echo can-
NOM Bus.
All busses on the EF Bus contain NOM information. See “NOM
Active” on page 29 of the Vortex Reference Manual for more information on how
NOM attenuation is applied.
Note.
The EF Bus must be connected so that the EF BUS OUT of one
Vortex device is connected to the EF B
Connecting EF B
EF B
US OUT
US IN
) will not work. See“Connector Pinouts” on
page 43 for pinout of Cat 5 cable.
4. C
ONFIGURE YOUR ECHO CANCELLER REFERENCE
Review what inputs need to be included in your echo canceller reference — See
“Build Your Echo Canceller Reference (if not using Preset 0)” on page 13. of the Vortex Reference Manual. Remember that each microphone needs an echo canceller reference. If all microphones are in the same room and use the same reference,
configure the echo canceller reference on one Vortex and assign it to the EF Bus as
the EF Bus Reference. Only one Vortex out of multiple units linked together can put
®
Vortex
Applications and Presets Guide 4 Technical Support: (800) 932-2774
of another Vortex.
US IN
to another EF BUS IN (or EF BUS OUT to
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