Cisco TelePresence SX80 Administrator's Guide

D15328.04 SX80 Administrator Guide CE8.2, OCTOBER 2016. www.cisco.com — Copyright © 2016 Cisco Systems, Inc. All rights reserved.
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Cisco TelePresence SX80 Administrator Guide
Using extra loudspeakers and local reinforcement
Local presenter,
PC-input
audio and far
end audio
sent to extra
loudspeakers
PC-input audio
& far end audio
sent to main
loudspeakers
Microphones for
local presenter
PC-input audio
Audio to far end
Gain
Gain
Master
volume
Mic. re-
inforcement
gain
Audio from far end
(including any far end PC-input audio)
Adaptive echo
cancellers
Delay
Gain
When using the video system with local reinforcement, extra
loudspeakers are strongly recommended to ensure that people in
the room get a good auditory experience.
Configuration example
The configuration example describes a setup with the main loudspeakers on
Line Output 1 and 2, the extra loudspeakers on Line Output 3 and 4, and local
presenters’ microphones on Microphone Input 1 and 2.
Sign in to the web interface and navigate to Setup > Configuration, to find the
settings referred below.
1. Set the delay (ms) for the extra loudspeakers:
Audio > Output > Line 3 > Delay > DelayMs : <0..290>
Audio > Output > Line 4 > Delay > DelayMs : <0..290>
The delay can vary based on where in the room the loudspeakers are
placed. To calculate the delay, see the Using Extra Loudspeakers and Local
Reinforcement guide.
2. Switch on reinforcement for the microphones that the local presenters will
use:
Audio > MicrophoneReinforcement > Input > Microphone 1 Mode : On
Audio > MicrophoneReinforcement > Input > Microphone 2 Mode : On
3. Switch on reinforcement for the extra loudspeakers:
Audio > MicrophoneReinforcement > Output > Line 3 > Mode : On
Audio > MicrophoneReinforcement > Output > Line 4 > Mode : On
4. Set the amplification of the microphone signal from the local presenters to
the extra loudspeakers:
Audio > MicrophoneReinforcement > Gain : <-54..15>
Adjust the gain in small steps and make sure that the final setting is well
below the feeding level.
Additional resources
We recommend reading the Using Extra Loudspeakers and Local
Reinforcement guide for a comprehensive description and best practices for
the solution.
►http://www.cisco.com/c/dam/en/us/td/docs/telepresence/endpoint/misc/
audio/extra-loudspeakers-local-reinforcement-guide-mx700-mx800-sx80.pdf
Introduction
Configuration
Peripherals
Maintenance
System settings
Appendices

Peripherals

Cisco TelePresence SX80 Specifications

General

Maximum frame rate	60 fps
Supported video modes	720p, 1080p
Video formats supported	H.261, H.262, H.263, H.264, H.265
Supported graphics resolutions	1280 x 720 (HD 720), 1920 x 1080 (HD 1080)
Voice codecs	G.711, G.722, G.722.1, G.729ab
Noise reduction	Yes
HDMI ports quantity	5
DVI-D ports quantity	1
USB 2.0 ports quantity	2
Product color	Silver
Rack capacity	1U
Number of persons	0 person(s)
Analog signal format system	NTSC, PAL
Security algorithms	HTTPS, SSH
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Supported network protocols	SIP, H.323, ISDN, TCP/IP, DHCP, QoS
AC input voltage	100-240 V
AC input frequency	50 - 60 Hz
Storage temperature (T-T)	-20 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 90 %
Sensor type	-
Image sensor size	- \

Weight and Dimensions

Depth	309.8 mm
Width	442 mm
Height	44 mm
Weight	3650 g