Cisco TelePresence System 3210 Assembly, Use & Care, and Field-Replaceable Unit Guide
Room Recommendations for the Cisco TelePresence System 3210
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Room Recommendations for the Cisco TelePresence System 3210

Table Of Contents

Room Recommendations for the Cisco TelePresence System 3210

Summary of Room Requirements

Room Dimensions

Acoustic Considerations

Asymmetrical Acoustic Wall Treatment

Complete Acoustic Wall Treatment

Lighting Considerations

Network Port Requirements

Power Requirements

HVAC Considerations

Auxiliary Display Considerations

Cabling Considerations for Second Row Seating


Room Recommendations for the Cisco TelePresence System 3210


Revised: February 20, 2012, OL-21178-01

This chapter provides you with general room recommendations for the Cisco TelePresence System 3210 (CTS 3210) and includes the following sections:

Summary of Room Requirements, page 2-1

Room Dimensions, page 2-2

Acoustic Considerations, page 2-3

Lighting Considerations, page 2-4

Network Port Requirements, page 2-9

Power Requirements, page 2-10

HVAC Considerations, page 2-12

Auxiliary Display Considerations, page 2-13

Cabling Considerations for Second Row Seating, page 2-14

Summary of Room Requirements

Table 2-1 summarizes the room requirements for the CTS 3210:

Table 2-1 Summarization of Room Requirements for CTS 3210 

Room Size Minimum

Depth / Width / Height
23' x 31' x 8' (7.01 m x 9.45 m x 2.44 m)

Lighting

300-400 lux Facial Light (vertical plane)
Twice the facial light or less for Shoulder Light (work surface)

Acoustics

Ambient Noise

45dBA SPL

NC30

Reverberation 150-700ms
Acoustic Panel on Side walls

Power

3.19kW Max
6 dedicated circuits
Participant convenient ports consume additional power

HVAC

Independent Room Control
Typical Cooling 12,800 BTU/Hr

Design

Aesthetic Continuity highly desirable
For best video quality:

Avoid high contrast elements such as very dark or bright colors

Avoid glossy finishes

Avoid clutter


The following sections elaborate on each requirement.

Room Dimensions

For the CTS 3210, rectangular rooms are preferred although irregular shaped rooms can also be accommodated. The minimum and recommended room sizes for a Cisco TelePresence 3210 system are provided in Table 2-2 and Table 2-3.

Table 2-2 18 Seat Room Dimensions

 
Width
Depth
Height
Minimum

31' (9.45 m)

23' (7.01 m)

8' (2.44 m)

Recommended

31' (9.45 m)

26'(7.92 m)

10' (3.05 m)

Maximum

To be determined

26'(7.92 m)

Greater than 10' may require acoustic wall treatment


Table 2-3 14 Seat Room Dimensions

 
Width
Depth
Height
Minimum

24' (7.32 m)

23' (7.01 m)

8' (2.44 m)

Recommended

24' (7.32 m)

26' (7.92 m)

10' (3.05 m)

Maximum

To be determined

26' (7.92 m)

Greater than 10' (3.05 m) may require acoustic wall treatment



Note Ceilings lower than 7' (2.13m) will not physically support the height of the CTS endpoint lighting façade.


Acoustic Considerations

For the immersive CTS 3210 meeting environment, the specifications are:

Ambient Noise less than 45 dBA (ideally at 36 dBA)

RT60 less than 500 ms (not to exceed 700 ms for non voice critical freq)

Noise Criteria no greater than 30

Meeting rooms large enough to accommodate an 18 seat or 14 seat CTS 3210 built of drywall, suspended ceilings, and carpeting that have exposed, parallel hard surfaces, usually promote reverberation to levels greater than 500ms to nearly 900ms (1.2 seconds), creating echoes in the room. The echo cancellation in the CTS 3210 codec may compensate for this in the audio broadcast to remote participants; however, local sound quality will be degraded in this type of unremediated acoustic environment. Because of this, acoustic treatment is required for CTS 3210 rooms.

There are two options for acoustic treatment, installing asymmetrical acoustic panels or applying acoustic treatment to all wall surfaces in the room.

Asymmetrical Acoustic Wall Treatment

As shown in Figure 2-1, staggered acoustic panels are placed on the opposing drywall surfaces such that no bare wall surfaces face each other. This option provides more natural (versus less recording studio-like) sound characteristics in the room.

Figure 2-1 Asymmetrical Treatment with Acoustic Panels

Table 2-4 Description of Callout for Figure 2-1

Callout
Description

1

Acoustic panel mounted on wall surface.


Complete Acoustic Wall Treatment

In complete acoustic wall treatment, all wall surfaces are covered by acoustic paneling, as shown in the following figure, though not necessarily from floor to ceiling. This creates a recording studio-like audio environment. This is optimal for clarity of audio transmission during a meeting and for recording meetings for playback; however, in-room participants may find the room uncomfortably muted or muffled as natural environments contain reverberation and echo. Which acoustic treatment you choose should be based how the room will be used and the participant expectations of the room experience.

Figure 2-2 Complete Treatment Acoustic Panel Treatment

Table 2-5 Description of Callout for Figure 2-2

Callout
Description

1

Continuous acoustic paneling covering all room walls.


Lighting Considerations

The Cisco TelePresence 3210 System requires the following lighting levels.

Table 2-6 CTS 3210 Room Lighting Levels 

Illumination
Target
Tolerance
Note

Overall illumination

lux (= lm/m2)

300-400 lux

+ or - 50 lux

Lighting should be evenly dispersed throughout the room.

Measured vertically w/ light sensor pointed at wall or intended camera location (not pointed at ceiling)

Shoulder light/Direct down light.

No more than twice the overall illumination of the room.

Generally, shoulder lighting should not be more than 400 lux greater than the overall illumination of the room and never exceed 800 lux.

Measured horizontally at table height w/ light sensor pointed at ceiling

Lighting Dispersion

Color Temperature

Etc.

For all other general Cisco TelePresence room lighting recommendations, refer to the Cisco TelePresence Room Design Guide at the following URL:

http://www.cisco.com/en/US/solutions/
ns669/networking_solutions_products_genericcontent0900aecd80554cb2.html


There are four recommended lighting fixture placement options, all of which have the same goal, to provide even, indirect lighting throughout the room.

Which option you choose depends upon your choice of lighting fixtures.


Caution The following examples are for reference only. Please consult your lighting manufacturer's specifications for the adequate number and proper layout of fixtures to achieve the lighting levels mentioned above.

For example, lights that are brighter than the averages tested for this guide may require fewer placements. Likewise, dimmer than tested light sources may require a greater density of fixture placements.

Figure 2-3 Option 1: Recessed Indirect Lighting Fixture Placement

Table 2-7 Callouts for Figure 2-3

Callout
Description

1

Ceiling-installed 2' x 4' (0.61 m x 1.22 m) recessed indirect lighting fixtures.


Figure 2-4 Option 2: Indirect Pendant and Recessed Indirect Lighting Fixtures

Table 2-8 Callouts for Figure 2-4

Callout
Description

1

Ceiling-installed indirect pendant lighting fixture.

2

Ceiling-installed 2' x 4' (0.61 m x 1.22 m) recessed indirect lighting fixtures.


Figure 2-5 Option 3: Indirect Pendant with Recessed Indirect Lighting Fixtures

Table 2-9 Callouts for Figure 2-5

Callout
Description

1

Ceiling-installed indirect pendant lighting fixtures.

2

Ceiling-installed 2' x 4' (0.61 m x 1.22 m) recessed indirect lighting fixtures.


Figure 2-6 Option 4: 2' x 2' (0.61 m x 0.61 m) Recessed Indirect Lighting Fixtures

Table 2-10 Callouts for Figure 2-6

Callout
Description

1

Ceiling-installed 2' x 2' (0.61 m x 0.61 m) recessed indirect lighting fixtures


Network Port Requirements

The CTS 3210 requires a single Gigabit Ethernet port (RJ-45 UTP) installed on the wall behind the system. This port connects the CTS primary codec (the main interface between the CTS endpoint and the network) to the network infrastructure.

The CTS primary codec (required) and participant convenience port connectivity options are listed in Table 2-11.

Table 2-11 CTS 3210 Network Access Requirements 

Description
# of Ports
Connection
Notes

CTS Codec - Required

1

Wired

RJ-45 UTP Gigabit Ethernet on the wall behind the system. Codec connectivity is required regardless of the participant access type.

Participants Option 1

1

Wireless

Customer must provide wireless access.

Participants Option 2

1

Wired with switch in room

An additional RJ-45 UTP port should be provided on the wall behind the system for the switch.


Please consult with your network administrator on which method is best for your telepresence deployment.


Note Any switches installed in the TelePresence room must meet the company's network policies. They must also meet the sound requirements of TelePresence. Switches should not generate more than 45dB of sound within the TelePresence room.


Power Requirements

The Cisco TelePresence System 3210 requires six dedicated 20Amp circuits @120V (US electrical code requires maximum 16A on a 20Amp circuit) or six dedicated 10amp circuits @ 240V. These circuits must be dedicated to the Cisco TelePresence System.

Of these six circuits:

Four circuits should be located on the wall behind the system for the plasma screens, codecs, and front table of participant convenience ports.

Two circuits should be provided via cable trench or under-carpet cabling solution to the back table participant convenience ports.


Note Peripherals such as document cameras or alternate displays will require additional circuits and receptacles. Placement will depend on the type and location of the peripheral.


To connect the CTS system components to the power circuits, the CTS 3210 and CTS 3200 both use Power Distribution Units (PDUs). Each PDU must support 20 amps@120V or 10 amps@240V, depending on your installation choice.

To provide power to second row participants, you need to provide an electrical power source that is located to the right side of the second row table. For more information, see the "Cabling Considerations for Second Row Seating" section on page 2-14. For an example, see Figure 7-13.

Table 2-12 CTS 3210 Power Distribution 

Circuit

1
2
3
4
5
6

Connected to Circuit

1 PDU

1 PDU

2 PDUs

 

1 PDU

1 PDU

1 Auxiliary Control Unit (ACU)

Connected to PDU or ACU

1 Display

2 Codecs

1 Display

1 Codec

1 40" LCD Display

6 AC Ports for first row seating

AC Ports for second row seating

AC Ports for second row seating

1 Display

5 Lighting


Table 2-13 CTS 3200 Power Distribution 

Circuit

1
2
3
4
5
6

Connected to Circuit

1 PDU

1 PDU

1 PDU

 

1 PDU

1 PDU

1 ACU

Connected to PDU or ACU

1 Display

2 Codecs

1 Display

1 Codec

1 Projector

6 AC Ports for first row seating

AC Ports for second row seating

AC Ports for second row seating

1 Display

5 Lighting


Table 2-14 summarizes the power consumption for the CTS 3210 and CTS 3200.


Note Peripherals are not included in the following power requirement tables.


Table 2-14 CTS 3210 and CTS 3200 Power Consumption 

Component
Maximum
Typical
Idle
 

kW
Amperage @120V

kW
Amperage @120V

kW
Amperage @120V

65" Plasma Display x3 (CTS 3200)

3.24

27.00

2.34

16.95

0.002

0.02

65" Plasma Display x3 (CTS 3210)

1.71

14.25

1.71

14.25

0.001

0.01

Primary Codec x1

0.30

2.50

0.13

1.00

0.12

1.00

Secondary Codec x2

0.36

3.00

0.23

1.88

0.22

1.80

Lighting Façade

Top x 3 + Sides x 2

0.35

2.91

0.35

2.91

0.00

0.00

Auxiliary Control Unit (ACU)

0.02

0.20

0.02

0.20

0.00

0.00

Projector x1 for first row seating (CTS 3200)

0.29

2.40

0.23

1.70

0.001

0.01

40" LCD for first row seating (CTS 3210)

0.22

1.83

0.18

1.50

0.001

0.01

Optional 40" LCD for second row seating

0.22

1.83

0.18

1.50

0.001

0.01

A/V Expansion Unit

0.01

0.08

0.01

0.08

0.00

0.00

POWER TOTAL for 3200

4.79 kW

39.92 amps @ 120V

19.96 amps @ 240V

3.48 kW

26.22 amps @ 120V

14.49 amps @ 240V

0.34 kW

2.83 amps @ 120V

1.41 amps @ 240V

POWER TOTAL for 3210

3.19 kW

26.61 amps @ 120V

13.30 amps @ 240V

2.80 kW

23.32 amps @ 120V

11.68 amps @ 240V

0.34 kW

2.83 amps @ 120V

1.41 amps @ 240V

Optional: Additional Power Requirements for power in Table Legs

Participant Convenient ports (18 participants)

4.32

36.00

0.440

3.66

0.00

0.00


HVAC Considerations

Planning the cooling for a CTS 3210 TelePresence room is important to ensure the room remains comfortable for people in it and to protect the equipment by maintaining normal operating temperatures.


Caution HVAC considerations should be given from the initial phase of choosing a room. Installing new cooling (or heating) systems can be time-consuming.

The table summarizes the specific BTU output of a CTS 3210 when deployed as recommended and under typical operating conditions. Please provide this information to your building HVAC engineer.

The qualifier typically assumes:

The system is not used constantly 24 hours a day, seven days a week, every week.

Deployment follows Cisco recommendations.

The room is located within a building interior.

The room has proper air circulation.

The room's walls are painted with neutral colors.


Note For more information about specific wall colors, refer to the Cisco TelePresence Wall Color Guide available at the following URL:

http://www.cisco.com/en/US/solutions/ns669/
networking_solutions_products_genericcontent0900aecd80554cb2.html


The target room temperature expected is 72-76 degrees F.

From these guidelines and for typical usage, a diversity factor of 25 percent is assumed which lowers cooling requirements.


Note Conditions not consistent with the above may require additional cooling. Consult with your HVAC engineer to define building envelope and unique requirements. Additional equipment such as data displays, document cameras, etc., require additional cooling.


Table 2-15 CTS 3200 and CTS 3210 BTU Output with 25% diversity 

 
CTS 3200
CTS 3210
Source
Typical KW

Typical Usage
BTUs/hr

Typical kW

Typical Usage BTUs/hr

System Power

3.13

8011

2.46

6286

System Lighting

0.35

891

0.35

891

12 Participants (Avg)

0.78

1997

0.78

1997

8 Laptops (Avg)

0.44

1126

0.44

1126

Ceiling Lights (1.4w/sqft)

0.99

2534

0.99

2534

 
Total Typical Heat Dissipation

14,600 BTU/Hr

Total Typical Heat Dissipation

12,800 BTU/Hr


Auxiliary Display Considerations

The CTS 3200 comes with a data projector, designed to project onto the white screen below its three primary video displays. The CTS 3210 likewise has an LCD display below its three primary video displays.

For both the CTS 3200 and CTS 3210, content below the primary video displays is difficult for participants in the second row to see. The solution to this is that both systems include a 4-port HDMI splitter for additional external displays as part of the audio-video expansion unit.

This splitter enables you to add up to three additional data displays in the room so that second-row participants can easily view shared data. It also gives you flexibility to choose the number, size, and location of the extra displays in the room. We would recommend at least a 50 inch display when using one in the center above the CTS unit or two 46 inches displays when they are located on both sides of the unit, as shown in Figure 2-7.

Figure 2-7 Auxiliary Display Considerations

Table 2-16 Callouts for Figure 2-7

Callout
Description

1

Height for a side mounted position is 64 (162 cm) from floor.

2

Distance from the ceiling varies depending on ceiling height. Check the height of the room prior to additional display selection and installation. The CTS system itself is 7 feet (2.13m) high.

3

The lateral position for a side mounted position is 10'4" (313 cm) from center of CTS 3210.


Cabling Considerations for Second Row Seating

To connect the participant convenience ports in the CTS 3200 or CTS 3210 second row seating, a cable trench or an under-carpet cable conveyance solution is recommended. The position of the trench or cable conveyance is shown in Figure 2-8 and Figure 2-9.

You use this conveyance to provide access between the rear of the system and the microphone cables for the second row. You can also use this conveyance to add power and Ethernet connectivity for second row conference participants. To add power connectivity, you need to provide a floor-mounted electrical termination unit (for example, a junction box with two electrical outlets) on the right edge of the second row table. See Figure 7-13 for an example.

The trench or cable conveyance should be able to allow a clear separation between the power cable, microphone cable, and Ethernet cable bundles. One exit of the trench should come out behind the right plasma.

The microphones are connected through a microphone extension lead and the maximum distance between the microphones to the codec is 17.5 meters (57.4 feet). The extension microphone lead is 9 meters (29.5 feet). Any longer distance between the microphone and primary codec introduces noise and is not supported. The Ethernet cables which are connecting the participants in the second row are 10 meters (32.8 feet) long and the two Power Distribution Units which are used to provide power to the second row have 7 meter (23 feet) long cables.

If you are unable to route the cables under the floor, be sure that your alternative solution (such as an under-carpet cable conveyance) follows all local fire, building, accessibility, and safety codes. Alternately, power and data could be taken directly from the back wall in another trench as long as it follows all local fire, building and safety codes.


Note The trenching guidelines in these figures use the minimum distance of the system to the rear wall, which is four inches (10.2 cm). If you increase the distance between the system and the rear wall, increase the distance between the trench and the rear wall by the same amount.


Figure 2-8 Cable Trench Location for CTS 3210 with 18 Seats

Figure 2-9 Cable Trench Location for CTS 3210 with 14 Seats (CTS 3210 Reduced Configuration)