Deakin eSolutions (Information Technology Services Division)
Audio Visual and Networks Unit
ICT Volume 2.3 Videoconferencing Standards
Resource 2.3.1 Installing Videoconference Systems
Document History
Ver. Primary Author(s) Description of Version Date Completed 1.0.1 Neil Clarke First Release (extracted from Volume 2.3) 10-Feb-2013
Contents
1
CAMERA AND DISPLAY MOUNTING HEIGHTS ... 2
1.1 AV02 ... 3
1.2 AV04–UNOBSTRUCTED SIGHT LINES ... 3
1.3 AV04–OBSTRUCTED SIGHT LINES ... 4
1.4 AV06 AND AV08 ... 5
2
MOUNTING THE C-SERIES CODEC ... 6
2.1 IMPORTANT INSTRUCTIONS – TO PREVENT OVERHEATING: ... 6
2.2 THE CODEC MAY BE MOUNTED IN THE FOLLOWING LOCATIONS: ... 6
2.3 MANUFACTURER INFORMATION ... 8
3
LCD MOUNTS ... 9
3.1 WALL MOUNTS ... 9
3.1.1 Recessed wall mounts ... 9
3.2 LCDSTANDS ... 10
3.2.1 Fixed single stand for 42”, 46”, and 55” display ... 10
1 Camera and display mounting heights
The Deakin ICT Volume 2.3 Standard’s requirements are satisfied by the following mounting rules and heights listed in tables below, which must always be adhered to.
Refer also ICT Resource 2.7.2 Sight Lines for related information.
Projectors are not recommended for videoconference meeting rooms, and should generally be restricted to teaching spaces.
Displays:
2H – 6H viewing distance rule must be adhered to
otherwise good eye contact and camera viewing angles become too hard to achieve
Numerical values given in tables below assume and require that the 2H – 6H rule applies. Cameras:
camera is never to be mounted beneath the display
camera is never to be mounted below eye height (1250 AFFL)
camera angle downwards to eye-level must not exceed 15
single display systems:
camera to be mounted immediately above the display, except as noted below
dual display systems:
camera to be mounted between the displays, preferably at 2/3rd the image height, except as modified by other constraints of the Standard.
Credenzas:
Credenza height must not prevent displays being mounted at heights as listed in tables below.
Remember to accommodate the display’s bezel thickness.
1.1 AV02
The rules are satisfied by mounting the EX90 appliance either:
directly on the user’s desk; or
on a credenza of the same height as the user’s desk
[the credenza must have a skirt area in front of the EX90 at least 400 mm deep so as not to inhibit the EX90’s DocCam function.]
1.2 AV04 – Unobstructed sight lines
All cases where the table width exceeds the overall image width (which generally includes all preferred table types and also most single display systems) shall follow the following mounting rules and heights:
single display systems: camera to be mounted immediately above the display, except as noted at [3] and [4] below
dual display systems: camera to be mounted between the displays at height shown in table below
Screen Size (diagonal) Image lower edge AFFL [1]
Camera lens centre AFFL [2] 81 cm (32”) 16x9 LCD 1000 mm 1300 mm 107 cm (42”) 16x9 LCD 950 mm 1300 mm 117 cm (46”) 16x9 LCD 900 mm 1300 mm 140 cm (55”) 16x9 LCD 850 mm 1300 mm 165 cm (65”) 16x9 LCD 800 mm 1350 mm 70”~75” 16x9 LCD 750 mm 1400 mm 221 cm (87”) 16x9 Plasma 700 mm 1450 mm 221 cm (87”) 16x10 UST / SmartBoard 700 mm 1500 mm [3] >165 cm (65’) 16x10 Projector 700 mm 1500 mm [4]
[1] for single and dual displays [2] for dual displays
for single display camera is mounted immediately above the display, except for:
[3] for single UST, camera cannot be mounted above, therefore must be mounted immediately to one side
of the image, at same height as listed here for dual displays (consideration should be given to adding a second camera on the other side of the image, in which case the Left camera is Camera 1 and the Right camera is Camera 2)
[4] for single projector >90” diagonal, camera must be mounted immediately to one side of the image, at same height as listed here for dual displays (consideration should be given to adding a second camera on the other side of the image, in which case the Left camera is Camera 1 and the Right camera is Camera 2)
1.3 AV04 – Obstructed sight lines
All cases where the table width is narrower than the overall image width (generally dual display systems with non-preferred long narrow tables) shall follow the following mounting rules and heights:
camera must NOT be mounted either above or below the display
single display systems:
camera to be mounted immediately to one side of the display at height shown below
dual display systems: camera to be mounted between the displays at height shown below
Screen Size (diagonal) Image lower edge AFFL [1]
Camera lens centre AFFL [2] 81 cm (32”) 16x9 LCD 1400 mm 1600 mm 107 cm (42”) 16x9 LCD 1400 mm 1650 mm 117 cm (46”) 16x9 LCD 1400 mm 1700 mm 140 cm (55”) 16x9 LCD 1400 mm 1750 mm 165 cm (65”) 16x9 LCD 1400 mm 1800 mm 70”~75” 16x9 LCD 1400 mm 1850 mm 221 cm (87”) 16x9 Plasma 1400 mm 1950 mm 221 cm (87”) 16x10 UST [3] 1400 mm 2000 mm
>165 cm (65’) 16x10 Projector 1400 mm 50% of image height
[1] for single and dual displays [2] for single and dual displays
for dual displays camera is mounted between the displays;
for single display camera is mounted immediately to one side of the image, at same height as listed here (consideration should be given to adding a second camera on the other side of the image, in which case the Left camera is Camera 1 and the Right camera is Camera 2)
[3] SmartBoard must NOT be mounted at this height – SmartBoard must always be mounted as given in table at section 11.9.5.2 above
1.4 AV06 and AV08
Displays should generally follow the same rules as above, in particular:
SmartBoards must be mounted with lower edge of image at 700 mm AFFL.
Camera 1 (front, audience-facing camera) should ideally follow the same rules as above for AV04. Where this is not possible (e.g. clearance required to minimize risk of bumping, damage theft, camera shall be between 2100 mm and a maximum of 2500 mm AFFL.
Camera 2 (presenter-facing camera) shall be mounted between 2100 mm and a maximum of 2500 mm AFFL. For AV06, camera is normally mounted on the rear wall. For AV08, camera should be mounted sufficiently forward in the theatre so that it can be zoomed in to capture a head-and-shoulders close-shot of the presenter – this could require mount descending from the ceiling, which must be sturdy and vibration free. Laterally, the camera should be positioned so that the presenter, when at their normal position behind the presenter’s desk, is looking directly towards the camera when they are looking at the exact centre of the auditorium.
2 Mounting the C-series codec
2.1 Important instructions – to prevent overheating:
In credenzas and racks there must be adequate air flow to prevent heat build up – ambient temperature within the enclosure must not exceed 35C.
The codec must not have anything placed directly on top of it. The codec should have at least 1RU clear space above it.
The codec should have at least 1RU clear space below it if rack-mounted above another heat source.
The C20 must have adequate clear air space behind it, with cables organized so as not to obstruct clear air flow for the rear-facing fans (e.g. see Figure 1 below).
The C60 and C90 must have a minimum 100 mm unobstructed clear air space in front of it so as to prevent closed-loop air circulation:
2.2 The codec may be mounted in the following locations:
Rack mount
Shelf mount in credenza
so that the house-PC, the auto-switcher and the codec are all co-located.
Behind LCD stand
FIGURE 1: C20 MOUNTED BEHIND LCD USING SPARE CAMERA MOUNT SHELF
The above configuration must not be used for C60/C90 due to air-flow clearance requirements !
FIGURE 2: C60 EDGE-MOUNTED ON SHELF BEHIND LCD
The above mounting option is suitable for both single display and dual display applications. C20, C60 and C90 can all use the above mounting option.
On shelf below LCD
Flush wall mount (C20) – using C20 wall-mount cable-management accessory
Hot Exhaust
Cool Intake
The hot air exhaust must be at the top and facing outwards ! i.e. codec’s right side uppermost (as shown)
For dual display systems codec to be mounted behind the audience-Right display
only suitable for dual-screen installations only suitable for C20 installations
2.3 Manufacturer information
EX90: http://www.cisco.com/en/US/docs/telepresence/endpoint/ex-series/installation_guide/ex90_installation_sheet_for_web.pdf C20: http://www.cisco.com/en/US/docs/telepresence/endpoint/quick-set-c20/installation_guide/78-19784-01_Quick_Set_C20_Installation_Sheet_for_web.pdf C60: http://www.cisco.com/en/US/docs/telepresence/endpoint/codec-c-series/installation_guide/78-19806-01_Codec_C60_Installation_Sheet_for_web.pdf C90: http://www.cisco.com/en/US/docs/telepresence/endpoint/codec-c-series/installation_guide/78-19811-01_Codec_C90_Installation_Sheet_for_web.pdf PHD1080p12X camera: http://www.cisco.com/en/US/docs/telepresence/endpoint/camera/precisionhd/user_guide/precisi onhd_1080p-720p_camera_user_guide.pdf3 LCD mounts
Editor’s note: When expanded this section will become the separate ICT Resource 2.2.1. [ Projectors are not recommended for videoconference meeting rooms, and should generally be restricted to teaching spaces. ]
3.1 Wall mounts
3.1.1 Recessed wall mounts
Recessed wall mounts are strongly discouraged for the following reasons, and are not part of the Standard. As for any other non-standard feature, approval must be obtained from the DeS AV and Networks Unit Leader strictly on a case-by-case basis and before commencement.
cost of custom carpentry/joinery
difficulty of change due to inevitable changed requirements over time: o fix errors from original design/instal
o additional requirements (2nd display; add camera/s)
o larger display/s o technology change
o room layout reconfiguration o room re-purposing
access for maintenance and air-flow for cooling
If recessed wall-mounts are deemed required (for aesthetic requirements of the space) the following minimum requirements must be adhered to:
2H – 6H viewing distance rule must be adhered to
at time of original installation display sizes must be selected to ensure that the 2H – 6H rule will not be exceeded for any likely present or future room/seating layout
minimum clearances between equipment as initially installed and the recess’s perimeter: o 300 mm to the left +
o 300 mm to the right +
o 200 mm above the equipment + o 200 mm below the equipment
i.e. total minimum clearance: o 600 mm horizontally o 400 mm vertically
adequate access for maintenance
3.2 LCD Stands
3.2.1 Fixed single stand for 42”, 46”, and 55” display
3.2.2 Fixed stand for 65” screen
Note: Refer to tables above for actual heights – heights shown in the diagrams below need updating to reflect the requirements above.