Avaya Scopia XT5000 User manual

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Radvision XT5000 > Radvision XT5000 - Evaluation results main document
Radvision XT5000 - Evaluation results main
document
Radvision XT5000 - Evaluation results main document
Radvision XT5000
Manufacturer: RADVISION, an Avaya company
Model: XT5000
Software Version: 3.1.0.36
Optional Features and modifications: Nine Site Multipoint Conference Unit (MCU) 12 Mbit/s
Extended IP
Date of Test: 3rd ? 7th December 2012

Setup Procedure
Setting up the XT5000 system was straightforward. The compact CODEC and the HD camera
can both be mounted adjacent to the picture monitor/s. A system microphone pod, infrared
remote control and an external power supply completed the package.
The connections for basic operation were clearly illustrated on the installation guide and in the
documentation and involved:
Mounting the camera adjacent to the monitor(s)
Connecting the combined HDMI-HDMI video, control and power cables between the
camera and the CODEC
Connecting the supplied HDMI-HDMI cables between the CODEC and the monitor/s
Cabling the microphone to the CODEC
Establishing an Ethernet IP network connection through the RJ45-RJ45 cable
Connecting the external power unit to the CODEC
System set up was conveniently configured through the ?on-screen? menus via the hand held
remote control. IP address, IP Gateway, Subnet mask and Gatekeeper address were all
entered through these menus.
Approximate set-up time: 15 minutes
Documentation quality: The concise User, Installation and Administrator Guides were all easy
to follow.
Hardware Description
This compact XT5000 CODEC may either be mounted within a picture monitor cabinet or
adjacent to the monitors/s. Provided with two auto switching 10/100/1000 Ethernet
connections and capable of conferencing up to a bandwidth of 6 Mbit/s point to point and a
combined MCU bandwidth of 12 Mbit/s. The system can display a maximum image resolution
of 1080p at 60 frames/second on both the main and H.239 channels. The Vari-Speed cooling
fan was very quiet in operation and unobtrusive in the conference environment.
System options include:
1. A four or nine site on-board Multipoint Conference Unit (MCU).
2. 12 Mbps Extended IP Bit Rate.
3. Additional Digital Microphone Array Pod.
4. Advanced Audio CODEC pack (G.728 andG.729A).
5. Support for Scopia desktop and mobile.
Systems supplied for evaluation included a range of the above options.
The main HDMI connection carries the digital audio output but digital Optical audio inputs and
outputs are also available by using a mini-TOSLINK adapter to the 3.5mm jack connector.
Separate analogue audio input and output connections are also provided.
The XT5000 Plus system supports eleven video resolutions including:

The basic CIF format resolution of 352 x 288 pixels.
wCIF (512 x 288).
Optimal resolution w448p (768 x 448).
High definition w720p (1280 x 720).
High definition w1080p (1920 x 1080).
The achievable image resolution and frame rate are dependent not only on the call
connection bandwidth but also on whether the ?Video Quality Sharpness? is set to ON
or OFF. OFF is the default setting that maximises frame rate at very low connection
bandwidths.
Video Quality
Sharpness OFF ON
Connection
Bandwidth Resolution Frame rate Resolution Frame rate
128 Kbit/s 416 x 240 25 624 x 352 15
384 Kbit/s 848 x 480 25 848 x 480 25
768 Kbit/s 1280 x 720 25 1280 x 720 25
1 Mbit/s 1280 x 720 50 1280 x 720 50
2 Mbit/s 1920 x 1080 50 1920 x 1080 50
3 Mbit/s 1920 x 1080 50 1920 x 1080 50
4 Mbit/s 1920 x 1080 50 1920 x 1080 50
6 Mbit/s 1920 x 1080 50 1920 x 1080 50
In addition to the traditional Picture in Picture (PIP) display format, the CODEC also supports
Picture outside Picture (POP). This allows both near and far end images to be displayed side
by side simultaneously on a single picture monitor.

POP is particularly useful when a single large screen display device such as a plasma/LCD
panel or video/data protector is used as it permits greater flexibility in the choice of image
layout. In single monitor mode a maximum of two images may be displayed, it is thus not
possible to view the near, far and presentation images simultaneously.
Image layout selection may be achieved via two methods; using the graphic on screen user
interface or a combination of layout and PIP buttons on the remote control.
Selecting the OK button on the remote control accesses an on screen menu of user controls
which allows selection of image layouts from the graphic menu.
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Graphic User Interface images
Alternatively the layout and PIP buttons on the remote control may be used, while this two
button control provides flexibility in selection it could prove confusing to an occasional system
user.

The ?PIP? button on the remote control selects between the following layouts:
Full screen of the far end image with near image PIP
Near and far end images side by side POP
Large far end image, small near image POP
Full screen of the far end image
The ?Layout? button swaps images around so for example it would toggle between
Large far end image, small near image POP
Large near end image, small far image POP
When H.329 dual images are either transmitted or received in single monitor display mode the
?PIP? button can select these combinations:
Full screen of the presentation image with far image PIP
Presentation and far end images side by side POP
Large presentation image, small far image POP
Full screen of the presentation image
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In Dual monitor mode without Presentation material the monitors display:
Not in a Call In a Call
Main monitor Near Image + Menu Far Image + Menu
Second monitor Near image Near
When presentation material is transmitted or received the second monitor displays the
presentation material and the main monitor normally carries the menu information. The ?PIP?
button then selects the following layouts for the main monitor:
Full screen of the far end image with near image PIP
Near and far end images side by side POP
Large far end image, small near image POP
Full screen of the far end image
The ?Layout? button again swaps images around so for example it would toggle between
Large far end image, small near image POP
Large near end image, small far image POP
Some HD picture monitors have a tendency to crop images at the edges and lose information.
The main video output of the XT5000 CODEC contains the on-screen menus which are vital
to operate the CODEC, so to avoid problems an HDMI Over-scan control is provided within

the set-up menu which adjusts the size of the display images to preserve all of the
information. Presentation images from a PC may similarly be adjusted to avoid cropping.
The PTZ (Pan Tilt and Zoom) 1080p HD camera supplied has a native resolution of 1920
x 1080 pixels and horizontal viewing angles of 70 degrees.
Far end camera control (FECC) is supported.
CODEC inputs include the HDMI HD camera input and a separate DVI-I interface for PC
connection which will automatically select to:
Analogue RGB
Digital
This input supports Extended Display Identification Data (EDID).
The HDMI and DVI inputs do not support High Definition Content Protection (HDCP).
Dual video coding H.239 is supported providing a second unidirectional video channel.
Thus presentation material from a camera and material from a PC could be transmitted
simultaneously and displayed on two monitors at the remote site.
When two XT5000 systems conferenced together over a 6 Mbit/s connection set to the
UK location default settings it was possible to transmit two simultaneous high resolution
images, the main camera channel at 1080p @50fps and the presentation channel at
1080p @60fps.
Within the ?Admin? settings the Video Quality control may be set to Sharpness ON/OFF,
this only affects conferences of 384 Kbit/s and below.
The table illustrates this:
Main Channel Only Main Plus Presentation
Sharpness: No
Main Plus Presentation
Sharpness: Yes
Call
Bandwidth Sharpness: No Sharpness: Yes Main Presentation Main Presentation
6Mbit/s 1920x1080
@50
1920x1080
@50
1920x1080
@50
1920x1080
@60
1920x1080
@50
1920x1080
@60
4Mbit/s 1920x1080
@50
1920x1080
@50
1920x1080
@50
1920x1080
@60
1920x1080
@50
1920x1080
@60

2Mbit/s 1920x1080
@50
1920x1080
@50
1280x720
@50
1920x1080
@30
1280x720
@50
1920x1080
@30
1Mbit/s 1280x720
@50
1280x720
@50
1280x720
@25
1920x1080
@30
1280x720
@25
1920x1080
@30
768 Kbit/s 1280x720
@25
1280x720
@25
848x480
@25
1920x1080
@30
848x480
@25
1920x1080
@30
384 Kbit/s 848x480
@25
848x480
@25
512x288
@25
1920x1080
@30
848x480
@25
1920x1080
@30
128 Kbit/s 416x240
@25
624x352
@15
416x240
@25
1920x1080
@30
416x240
@25
1920x1080
@30
The reported frame rates in the table above reflect ?target? frame rates, for example in a
lower bandwidth connection with significant motion within the image the actual frame rate
achieved was observed to be significantly lower than the reported target.
Several audio formats are supported by the XT5000 CODEC. Radvision has implemented the
ITU standard G.719 audio protocol giving 20KHz analogue audio bandwidth requiring 64
Kbit/s of connection bandwidth.
PC audio input and stereo audio outputs are both available via industry standard 3.5mm mini
jack connectors. The main HDMI output carries the digital stereo signals, optical digital audio
input and output connections are also available via mini-TOSLINK adaptors
Encryption is provided at all connection speeds through Advanced Encryption Standard (AES)
with a 128 bit session key.
SYSTEM OPERATION
The system may be operated locally from the infra-red remote control. The on-screen menus
are logical and easy to follow. The system may also be configured and controlled via a web
browser interface from a network connected PC. For security this remote web connection is
password protected. The CODEC may also be interfaced to a room control system via an IP
network connection.

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The remote control includes a comprehensive selection of single operation control buttons.
As the same remote control is also used on the companies XT1000 CODEC the four
multifunction colour coded buttons are redundant on the XT5000.
The CODEC remote control includes a single start/finish presentation source button:
Pressing this button for a short period selects the PC presentation source and opens an
H.239 connection
Pressing the button again for a short period closes the H.239 connection
An H.239 connection is initiated and terminated on the remote control via the on-screen
graphical interface. The main camera occupies one channel and the source connected to the
DVI-I input the second channel, normally a PC. At the remote site these two images may
either be viewed on two separate monitors or using POP displayed on a single screen. The
DVI-I input may also be switched to transmit on the main channel if H.239 is not in use.
Alternatively several user controls are available during a call from the graphic user interface;
this is accessed by pressing the OK button on the remote control.
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Graphic User Interface
The system takes a significant period to boot up from cold (~70 seconds), on screen graphics
provide useful user feedback that the system is booting up. When not in a call the system
automatically goes into sleep mode after a user-definable period of time, it can also be put
into standby mode via the remote control. An incoming call or a remote control button press
will return the system to active mode.
The Statistics menu displays call status data including connection speed, compression
protocols and packet loss.
The system may also be configured, controlled and monitored via a password protected web
browser from a network connected PC. This facility provided control and monitoring facilities
including an online version of the system remote control. Snapshot images of the local video
at the CODEC are also provided and the user may select the image size and refresh rate of
this image, this web video image of the local camera is however only available when the
system is not in a call. Video snapshots of the far end video are not available.
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Image not found
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The XT5000 proprietary microphone pod includes three microphones to guarantee 360
degree coverage, audio beam forming is used to steer the overall microphone pod pickup in
the direction of the speaker. The pod includes a mute button; this button is illuminated red
when muted. The mute button inhibits all audio transmission to the remote site, including PC
audio. A second microphone may also be connected to the CODEC via a daisy chain
connection to the first microphone pod.
Optional MCU
An optional four or nine site MCU supports up to three or eight remote sites plus the host
XT5000 MCU CODEC. The maximum combined conference bandwidth is 12 Mbit/s.
Controlling an MCU conference is a simple procedure:
1. Select the ?Make a Call? button during a call.
2. Enter the number of the additional site into the call menu or select the site from the
directory or the recent call list.
3. Press the ?OK? or ?Make a Call? button.
4. The additional site will then be connected to the conference.
Individual or all connections may be disconnected using the graphic interface.
All sites receive a continuous presence split screen display with the local MCU CODEC
controlling several layout options. For example:
Remote sites equal size
Large voice switched current speaker image with small images of other sites
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When presentation material is transmitted or received the available layouts include:
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In dual monitor mode the Presentation material is displayed on the second monitor.
VIDEO TESTS SUMMARY
The video quality experienced between XT5000 systems at 1080p 50fps was excellent; the
high resolution images and the superb motion rendition at 1080p 50fps were impressive. The
ability to transmit two simultaneous channels of high resolution, high frame rate images is a

welcome development.
The Radvision camera had some shortcomings. Dark areas of the image lacked contrast and
appeared grey rather than black. When compared to other vendors cameras the image also
appeared slightly soft. Tests using material from a PC or other HDMI cameras connected to
the main camera input indicated that these issues were related to the Radvision camera and
not to the CODEC or monitor performance. For connections exceeding 2Mbit/s the video was
of a high quality, even fast moving movie trailer material that normally challenges conference
links to the limit were almost artefact free.
At lower connection speeds on standard videoconference material the video quality was also
very good. The detailed video test scores below confirm the products excellent performance
across the board.
F: AUDIO TESTS SUMMARY
Setup The echo canceller is fully automatic in operation. The quality of echo cancellation
and doubletalk from the system was excellent.
Lecture Theatre Room
Audio levels adequate? (Yes/no) Not tested Yes
Audio quality acceptable? (Yes/no) Not tested Yes
Echo cancellation acceptable? (Yes/no)Not tested Yes
Quality of double talk Not tested Excellent
G: DATA TESTS
A PC may be directly connected to the XT5000 CODEC via the DVI-I interface.
H: CONNECTIVITY
H.323
There were no problems connecting between the Radvision XT5000 units.
Time to Connect with encryption On
H.323
All speeds 5 seconds

During an H.323 call the network connection was removed and reconnected after a specific
time.
5 Seconds Picture froze ?successful reconnection, call does not terminate
15 Seconds Picture froze ?successful reconnection, call does not terminate
30 Seconds Picture froze - call then terminates on network reconnection
Connectivity with Other Machines (models listed with comments)
H.323
Successful connections were made in each direction with the following CODECs, where the
systems supported H.239 presentation material was also shared.
Small incompatibilities between different manufactures CODECS is the norm but during these
tests the XT5000 was error free.
CODEC Call
Bandwidth
Resolution
Transmitted by
the XT5000
Resolution
Received by
the XT5000
Polycom® VSX7000
S/W 9.0.5.1 2 Mbit/s H263 CIF (352 x
288) H263 CIF (352 x 288)
Polycom HDX 9002
S/W 2.6.0 2 Mbit/s w720p @ 25 w720p @ 25
Tandberg 6000 MXP
S/W F9.0 PAL 4 Mbit/s W448p (768 x
448) @ 26 w720p @ 30
Cisco SX20
S/W TC5.1.4 6 Mbit/s w1080p @ 50 w720p @ 60
Cisco C40 (MLVC)
S/W TC5.1.1 (No
Premium Res)
6 Mbit/s w720p @ 25 w720p @ 30

Cisco C60 (Prem
Res)
S/W TC4.2.1
6 Mbit/s w1080p @ 25 w720p @ 60
Cisco C90 (Prem
Res)
S/W TC4.2.1
6 Mbit/s w1080p @ 25 w1080p @ 30
Lifesize Express 220
S/W 4.9.00 4 Mbit/s w720p @ 30 w720p @ 50
Lifesize Team
S/W 4.7.19 4 Mbit/s w720p @ 25 w720p @ 30
Lifesize Room 200
S/W 4.7.10 6 Mbit/s w720p @ 50 w720p @ 30
Connectivity with JANET Videoconferencing Service
H.323
The XT5000 system connected successfully to the Janet Codian MCU negotiating H.264
video at 720p resolution with corresponding audio coding of AAC-LD 64Kb/s receive and
G.722.1 48Kb/s transmit. H.239 content was also successfully shared via the MCU. The
received audio level was measured as peaking to -5dBm.
Procedure for making a call
1. Press the ?Make a Call? button on the remote control
2. Input IP address
3. Press the ?Make a Call? button
Or use the local contacts directory available from the user interface Phone Book or the Recent
Calls lists.
Display as Single Column?:
Source URL: https://community.jisc.ac.uk/library/radvision-xt5000-evaluation-results-main-document