D15329.08 SX20 Administrator Guide CE9.2, NOVEMBER 2017.   www.cisco.com — Copyright © 2017 Cisco Systems, Inc. All rights reserved. 
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Cisco TelePresence SX20 Quick Set  Administrator Guide
PRODUCT COMPATIBILITY
Fully compatible with standards-compliant 
telepresence and video systems
SOFTWARE COMPATIBILITY
•  Cisco TelePresence Software Version TC5.1 or later
•  Collaboration Endpoint Software Version 8.0 or later
COMPONENTS
Set delivered complete with:
•  SX20 Codec
•  Cisco TelePresence PrecisionHD 1080p2.5x, 
PrecisionHD 1080p4x S2 or PrecisionHD 1080p12x 
camera
•  Cisco TelePresence Table Microphone20
•  Remote control
•  Cables
•  Power supply
Optional components:
•  Cisco TelePresence Touch 10
•  Wall mount kit
•  Additional Cisco TelePresence Table Microphone20
BANDWIDTH
H.323 and SIP up to 6 Mbps point-to-point
MINIMUM BANDWIDTH FOR RESOLUTION / 
FRAME RATE
•  720p30 from 768 kbps
•  720p60 from 1152 kbps
•  1080p30 from 1472 kbps
•  1080p60 from 2560 kbps
FIREWALL TRAVERSAL
•  Cisco TelePresence Expressway technology
•  H.460.18 and H.460.19 firewall traversal
•  SIP ICE (Interactive Connectivity Establishment)
VIDEO STANDARDS
•  H.263
•  H.263+
•  H.264
VIDEO FEATURES
•  Native 16:9 widescreen
•  Advanced screen layouts
•  Intelligent video management
•  Local auto-layout
VIDEO INPUTS TWO INPUTS
One HDMI
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 and one DVI-I (analog and digital) input
Support formats up to maximum 
1920 × 1080@60 fps (HD1080p60), including:
•  640 × 480
•  720 × 480
•  720 × 576
•  800 × 600
•  848 × 480
•  1024 × 768
•  1152 × 864
•  1280 × 720
•  1280 × 768
•  1280 × 800
•  1280 × 960
•  1280 × 1024
•  1360 × 768
•  1366 × 768
•  1400 × 1050
•  1440 × 900
•  1680 × 1050
•  1920 × 1080
Extended Display Identification Data (EDID)
HDCP is not supported
VIDEO OUTPUTS TWO OUTPUTS
Two HDMI outputs
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Supports formats up to maximum 
1920 × 1080@60 fps (1080p60), including:
•  1280 × 720 (720p)
•  1280 × 768 (WXGA)
•  1360 × 768 (WXGA)
•  1366 × 768 (WXGA)
•  1920 × 1080 (1080p)
VESA Monitor Power Management
Extended Display Identification Data (EDID)
Supports encode/decode video formats up to 
maximum 1920 × 1080@60 fps (HD1080p60), 
including:
•  176 × 144 (QCIF) (decode only)
•  352 × 288 (CIF)
•  512 × 288 (w288p)
•  576 × 448 (448p)
•  640 × 480 (VGA)
•  704 × 576 (4CIF)
•  768 × 448 (w448p)
•  800 × 600 (SVGA)
•  1024 × 576 (w576p)
•  1024 × 768 (XGA)
•  1280 × 720 (HD720p)
•  1280 × 768 (WXGA)
•  1920 × 1080 (HD1080p)
AUDIO STANDARDS
•  G.711
•  G.722
•  G.722.1
•  G.728
•  G.729AB
•  64 kbps and 128 kbps AAC-LD
AUDIO FEATURES
•  High quality 20 kHz stereo (line-in)
•  Two acoustic echo cancellers
•  Automatic gain control (AGC)
•  Automatic noise reduction
•  Active lip synchronization
AUDIO INPUTS FOUR INPUTS
•  Two microphones, 4-pin minijack
•  One minijack for line in (stereo)
AUDIO OUTPUTS TWO OUTPUTS
•  One minijack for line out (stereo)
•  One HDMI (digital main audio)
DUAL STREAM
•  H.239 (H.323) dual stream
•  BFCP (SIP) dual stream
•  Support for resolutions up to 1080p30 (1920 × 
1080)
MULTIPOINT SUPPORT
•  Four-way embedded SIP/H.323 MultiPoint, ref. 
MultiSite
•  Cisco Ad-Hoc Conferencing (requires Cisco 
Unified Communications Manager (CUCM), Cisco 
TelePresence Server and Conductor) 
MULTISITE FEATURES 
 
EMBEDDED MULTIPOINT
•
  Four-way SIP/H.323 MultiSite; resolution up to 
576p30
•  Full individual audio and video transcoding
•  Individual layouts in multisite continuous presence 
(takes out selfview)
•  H.323/SIP/VoIP in the same conference
•  Support for Presentation (H.239/BFCP) from any 
participant at resolutions up to 1080p30 (SXGA)
•  Best Impression (automatic continuous presence 
layouts)
•  H.264, encryption and dual stream from any site
•  IP downspeeding
•  Dial in and dial out
•  Additional telephone call (no license required)
•  Conference rates up to 6 Mbps
PROTOCOLS
•  H.323 and SIP (dual call stack support)
•  ISDN (requires Cisco TelePresence ISDN Link)
Technical specification (page 1 of 3)
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HDMI version 1.3