Table Of Contents

Room Requirements for the TX9000 and TX9200 Systems

Important Updates for the Cisco TelePresence Experience and Order Assurance Program

Summary of Room Requirements for the TX9000

Summary of Room Requirements For the TX9200

Room Dimensions for the TX9000 and TX9200

Room Dimensions for the TX9000

Room Dimensions For the TX9200

Lighting Considerations For the TX9000 and TX9200

Overhead Lighting Examples for Cisco TelePresence Rooms

Network Port Requirements For the TX9000 and TX9200

Power Requirements For the TX9000 and TX9200

Cabling and Room Considerations for Second Row Seating For the TX9200

Location of Electrical Outlets for Systems that Use a Wall-Mounted Reflector Wall

HVAC Considerations For the TX9000 and TX9200

HVAC Considerations for the TX9000

HVAC Considerations For the TX9200

Acoustic Considerations For the TX9200

Asymmetrical Acoustic Wall Treatment

Complete Acoustic Wall Treatment

Auxiliary Display Considerations For the TX9200

Room Requirements for the TX9000 and TX9200 Systems

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Revised: May 17, 2013, OL-27038-01

This chapter provides you with general room recommendations for the TX9000 and TX9200 systems and includes the following sections:

•Important Updates for the Cisco TelePresence Experience and Order Assurance Program

•Summary of Room Requirements for the TX9000

•Summary of Room Requirements For the TX9200

•Room Dimensions for the TX9000 and TX9200

•Lighting Considerations For the TX9000 and TX9200

•Network Port Requirements For the TX9000 and TX9200

•Power Requirements For the TX9000 and TX9200

•Cabling and Room Considerations for Second Row Seating For the TX9200

•HVAC Considerations For the TX9000 and TX9200

•Acoustic Considerations For the TX9200

•Auxiliary Display Considerations For the TX9200

Important Updates for the Cisco TelePresence Experience and Order Assurance Program

As of April 15, 2013, immersive TelePresence orders are now processed in the same way as EX, SX, MX, C-Series and TX1310 products. While Cisco still STRONGLY recommends that partners perform Room Readiness Assessments (RRA) and Network Path Assessments (NPA) prior to any immersive deployment, partners will no longer be required to upload these to Cisco's website for verification — shortening the process and giving partners a more predictable lead time for shipment of immersive orders.

For more information, refer to the Cisco TelePresence partner community, located at the following URL (partner-level login required):

https://communities.cisco.com/community/partner/collaboration/bizvideo/tp

Additional ordering information is located at the Experience and Order Assurance page at http://www.cisco.com/en/US/partner/applicat/ctelepre/applications_overview.html.

Summary of Room Requirements for the TX9000

Table 2-1 summarizes the room requirements for the TX9000:

Table 2-1 Summary of Room Requirements for the TX9000 

Minimum Room Size	Width / Depth / Height 19' x 14'4" x 8' (5800 mm x 4370 mm x 2440 mm) Note The dimensions provided are for a system that uses a wall-mounted reflector wall. For systems that use a free-standing reflector wall, increase the minimum depth from 14'4" (4370 mm) to 15' (4570 mm)
Lighting	200-400 lux Facial Light (vertical plane) Shoulder Light: No more than twice the facial light (measured on the horizontal plane) Note This is lighting for 30 frames per second (FPS) conferences. 60 FPS conferences may require additional lighting.
Acoustics	Ambient Noise For non-critical voice frequencies: •150-700 for non-critical voice frequencies (>500 Hz, or <2 kHz) •150-500 for critical voice frequencies (500 Hz-2 kHz) •45dBA SPL •NC30 Reverberation: 150-700ms Acoustic panels on side walls are optional, but can be used to remedy acoustic deficiencies.
Power	2.93 kW required Participant convenience ports consume additional power (maximum of 1.44 kW for six particpants)
HVAC	Independent Room Control Typical Cooling 9,500 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 For more information, refer to the Cisco TelePresence Wall Color Guide at the following URL: http://www.cisco.com/en/US/solutions/ns669/ networking_solutions_products_genericcontent0900aecd80554cb2.html

Summary of Room Requirements For the TX9200

Table 2-2 summarizes the room requirements for the TX9200:

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Note These dimensions are for the full, 18-seat version of the TX9200. A 10- and 14-seat version is also offered. For dimensions for these systems, see Chapter 13 "Building the Second Row Table For a 14- and 10-Seat TX9200 System."

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Table 2-2 Summary of Room Requirements for TX9200

Room Size Minimum	Width / Depth / Height 31' x 21' 5" x 8' (9450 mm x 6530 mm x 2440 mm) Note The dimensions provided are for a system that uses a wall-mounted reflector wall. For systems that use a free-standing reflector wall, increase the minimum depth from 21' 5" (6530 mm) to 22' 1" (6730 mm).
Lighting	Shoulder Light: No more than twice the facial light (measured on the horizontal plane) Note This is lighting for 30 frames per second (FPS) conferences. 60 FPS conferences may require additional lighting.
Acoustics	Ambient Noise •45dBA SPL •NC30 Reverberation: •150-700 ms for non-critical voice frequencies (>500 Hz, or <2 kHz) •150-500 ms for critical voice frequencies (500 Hz-2 kHz) Acoustic panels on the side walls are required. For more information, see the "Acoustic Considerations For the TX9200" section.
Power	2.93 kW required Participant convenience ports consume additional power (maximum of 4.32 kW for 18 particpants)
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 For more information, refer to the Cisco TelePresence Wall Color Guide at the following URL: http://www.cisco.com/en/US/solutions/ns669/ networking_solutions_products_genericcontent0900aecd80554cb2.html

The following sections elaborate on each requirement.

Room Dimensions for the TX9000 and TX9200

The following section includes the required room dimensions for your TX9000 and 9200 system and includes the following topics:

•Room Dimensions for the TX9000

•Room Dimensions For the TX9200

Room Dimensions for the TX9000

For the TX9000, rectangular rooms are preferred although irregular shaped rooms can also be accommodated. The minimum, recommended, and maximum room sizes for a TX9000 system are provided in Table 2-3.

Table 2-3 TX9000 Room Dimensions

	Width	Depth	Height
Minimum	19' (5800 mm)	14'4" (4370 mm)1	8' (2440 mm)
Recommended	21'(6400 mm)	18' (5490 mm)	10' (3050 mm)
Maximum	23' (7010 mm)	31' (9450 mm)	10' (3050 mm)

1 This measurement is for systems that have a wall-mounted reflector wall. For systems that have a free-standing reflector wall, increase the minimum depth to 15' (4570 mm).

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Note Ceilings lower than 8' (2440 mm) will not physically support the height of the CTS endpoint reflector wall.

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The minimum room dimensions are illustrated in Figure 2-1:

Figure 2-1 TX9000 Minimum Room Dimensions

Table 2-4 Callouts for Figure 2-1 

Callout	Description
1	The minimum room width is 19' (5800 mm). Rooms can be wider.
2	The minimum room depth is 14'4" (4370 mm) for systems that use a wall-mounted reflector wall, and 15' (4570 mm) for systems that use a free-standing reflector wall. Rooms can be deeper.
3	Systems that use a free-standing reflector wall only: The minimum distance between the rear edge of the free-standing reflector wall and the wall of the room is 5" (127 mm). The wall depth is 3" (76 mm). Note The minimum distance between the front of the free-standing reflector wall and the wall of the room is 8" (203 mm).
4	The distance between the light reflector and the table edge of the TX9000 is 10' 3" (3124 mm).
5	The minimum space between rear edge of the table and the rear wall is 44" (1120 mm).
6	The width of the TX9000 light reflector is 18' 9" (5715 mm).
7	The distance between the camera and the table edge at the outer chair position is 8.3' (2510 mm).
8	Systems that use a wall-mounted reflector wall only: The minimum distance between the rear of the system and the front of the wall-mounted reflector wall is 13.7 inches (348 mm).

Room Dimensions For the TX9200

For the TX9200, rectangular rooms are preferred, although irregular shaped rooms can also be accommodated. The minimum and recommended room sizes for a Cisco TelePresence TX9200 system are provided in Table 2-5.

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Note These dimensions are for the full, 18-seat version of the TX9200. A 10- and 14-seat version is also offered. For dimensions for these systems, see Chapter 13 "Building the Second Row Table For a 14- and 10-Seat TX9200 System."

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Table 2-5 TX9200 Room Dimensions 

	Width	Depth	Height
Minimum	31' (9450 mm)	21' 5" (6530 mm) for systems that use a wall-mounted reflector wall, 22' 1" (6730 mm) for systems that use a free-standing reflector wall	8' (2440 mm)
Recommended	32' 7" (9930 mm)	26'(7920 mm)	10' (3050 mm)
Maximum	There is no defined maximum room size; this number is dependent on echo and reverberation factors that can be caused by larger rooms. Rooms that are very wide may require acoustic wall treatment. For more information, see the "Acoustic Considerations For the TX9200" section.		Rooms with a height greater than 10' (3050 mm) may require acoustic wall treatment. For more information, see the "Acoustic Considerations For the TX9200" section.

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Note Ceilings lower than 8' (2.43 m) will not physically support the height of the CTS endpoint reflector wall.

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The minimum room dimensions are illustrated in Figure 2-2. Only the differences between the TX9000 and the TX9200 are noted here; for additional dimensions including dimensions of the wall, see Figure 2-1.

Figure 2-2 TX9200 Minimum Room Dimensions

Table 2-6 Callouts for Figure 2-2 

Callout	Description
1	The minimum room width is 31' (9450 mm). Rooms can be wider. Note The overall width of the second row table is 7.694 meters (25' 3")
2	The minimum room depth is 21' 5" (6530 mm) for systems that use a wall-mounted reflector wall, 22' 1" (6730 mm) systems that use a free-standing reflector wall. Rooms can be deeper.
3	The distance between the rear edge of the first row and the front edge of the second row, measured from the side of the table, is 56.4" (1432 mm).
4	The distance between the rear edge of the first row and the front edge of the second row, measured from the center of the table, is 56.06" (1424 mm).
5	The minimum space between rear edge of the second row table and the rear wall is 44" (1120 mm).

Lighting Considerations For the TX9000 and TX9200

The Cisco TelePresence TX9000 and TX9200 system require the following lighting levels.

Table 2-7 TX 9000 and TX9200 Room Lighting Levels 

Illumination	Target	Tolerance	Note
Overall illumination lux (= lm/m2)	200-400 lux Systems that use 60 FPS conferences would require measurements closer to 400 lux.	Lighting should be evenly dispersed throughout the room. Lighting should not fluctuate more than 100 lux throughout the room.	Measured vertically w/ light sensor pointed at wall or intended camera location (not pointed at ceiling), 3' 11" (1.20 m) above the finished floor (AFF).
Wall wash	200-400 lux	Lighting should be evenly dispersed throughout the room. Lighting should not fluctuate more than 100 lux throughout the room.	Measured vertically w/ light sensor pointed at wall or intended camera location (not pointed at ceiling), 3' 11" (1.20 m) above the finished floor (AFF).
Shoulder light/Direct down light.	400-800 lux or lower when possible	Generally, shoulder lighting should not be more than twice the facial light.	Measured horizontally at table height w/ light sensor pointed at ceiling, 3' 3" (0.99 meter) AFF.
Lighting Dispersion Color Temperature Etc.	Dimmable lighting systems optional but highly recommended for Cisco TelePresence rooms. If you use a dimmable system, you must commission the system before you take final calibration and lighting measurements. A dimmable system allows greater lighting control. The target is four-zone controlled lighting with scene presets. Asymmetric lights with light dispersion more than 45 degrees are recommended; however, you can use any lighting that meets the overall lighting requirements. 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

Overhead Lighting Examples for Cisco TelePresence Rooms

Figure 2-3 and Figure 2-4 illustrate lighting examples for Cisco TelePresence rooms. The option you choose depends upon your choice of lighting fixtures.

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Caution The following examples are for reference only. Please consult your lighting manufacturer specifications for the adequate number and proper layout of fixtures to achieve the lighting levels mentioned in Table 2-7. For example, lights that are brighter than the averages tested for this guide may require fewer placements. Likewise, light sources that are dimmer than the averages may require a greater density of fixture placements.

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Figure 2-3 Option 1: Indirect Pendant and Recessed Indirect Lighting Fixtures

Table 2-8 Callouts for Figure 2-3

Callout	Description
1	Ceiling-installed 1' x 4' (0.30 m x 1.22 m) recessed indirect lighting fixtures.

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

Table 2-9 Callouts for Figure 2-4

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

Network Port Requirements For the TX9000 and TX9200

The TX9000 and TX9200 require a single Gigabit Ethernet port (RJ-45 UTP) installed on the wall behind the system. This port connects the CTS primary codec (TS1), which is the main interface between the CTS endpoint and the network, to the network infrastructure.

The CTS primary codec and participant convenience port connectivity options are listed in Table 2-10.

Table 2-10 TX9000 Network Access Requirements

Options	# of Ports	Connection	Notes
CTS Codec (Required)	1	Wired	RJ-45 UTP Gigabit Ethernet on wall behind the system.
Option 1 for Participant Convenience Ports	1	Wireless	Customer provides wireless access.
Option 2 for Participant Convenience Ports	1	Wired with switch in room.	An additional RJ-45 UTP port should be provided on the wall behind the system for the switch.
Option 3 for Participant Convenience Ports	6 (TX9000) or 18 (TX9200)	Wired directly to wall with switch in wiring closet	Six additional RJ-45 UTP ports provided on the wall behind the system.

Consult with your network administrator on which participant convenience port option is best for your telepresence deployment.

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

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Power Requirements For the TX9000 and TX9200

Table 2-12 provides you with the maximum required power for each system component. Table 2-13 provides you with the power requirements if you provide power in the table legs for conference participants. Use these numbers to calculate the power requirements for your system.

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Note The PDUs use power cords with power plugs that are generally rated at either 20 amps at 120 volts, or 10 amps at 240 volts. For more information and pictures of the plugs, see "Region- and Country-Specific Power Cords and Table Leg Power Connectors."

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The total current draw for your system should be lower than these maximum numbers.

Table 2-11 Summary of Power Requirements 

Power Requirements per Room
Total power requirements for the TX9000 and TX9200 systems, excluding power in table legs for conference participants	2.93 kW
Power in table legs for six conference particpants (TX9000)	1.44 kW
Power in table legs for 18 conference particpants (TX9200)	4.32 kW
POWER TOTAL including power in table legs for TX9000	4.37 kW
POWER TOTAL including power in table legs for TX9200	7.25 kW
Total watts required per PDU: See Table 2-14
Number of Power Receptacles Required Per Room
Power receptacles required, excluding power in table legs—TX9000 and TX9200	4
Power receptacles required, including power in table legs—TX9000	5
Power receptacles required, including power in table legs—TX9200	7

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

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Table 2-12 Power Requirements for System Components 

Component	Number of Units	Maximum Per Unit in Watts	Typical Per Unit in Watts	Standby/Idle Per Unit in Watts
Codec	4	129.60	99.60	72.00
Audio/Video extension unit	1	44.40	30.00	30.00
Light Control Unit (LCU)	11	216.0	216.0	27.6
Camera processor module	1	36	16.8	16.80
65-inch display	3	600.0	552.0	48.00/1.20
Presentation display	1	312.0	252.0	21.60/1.20
POWER TOTAL for TX9000 and TX9200, excluding power in table legs for conference participants		2926.8	2569.2	528.0/367.2

1 There are two power supplies for the LCU. Each power supply draws half this number.

Table 2-13 Power Requirements for Power in Table Legs for Conference Participants (Optional) 

Component	Number of Units	Maximum Per Unit in Watts	Typical Per Unit in Watts	Standby/Idle Per Unit in Watts
Participant Convenience Ports, front row (6 participants)	6	240	28.3	0.00
Participant Convenience Ports, second row (12 participants)	12	240	28.3	0
POWER TOTAL for 6 participants for TX9000	1	1440	170	0
POWER TOTAL for 18 participants for TX9200	1	4320	510	0

The TelePresence TX9000 and TX9200 use Power Distribution Units (PDUs) to connect the components to the power circuits. See Table 2-14 and Table 2-15 for the wattage that is required for each PDU.

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Note US electrical code requires a maximum of 16 amps on a 20 amp circuit.

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Table 2-14 Components and Total Power Usage in Watts per Power Distribution Unit (PDU) 

PDU	Components
PDU 1	Power supply for LCU (1 of 2) Codec TS2 Left display Total watts: 837.6
PDU 2	Power supply for LCU (2 of 2) Codec TS1 Audio/video extension unit Presentation display Camera processor module Total watts: 630
PDU 3	Codec TS3 Right display Total watts: 729.6
PDU 4	Codec TS4 Center display Total watts: 729.6

Table 2-15 Components and Total Power Usage in Watts per Power Distribution Unit (PDU) for First and Second Row Conference Participants (Optional) 

PDU	Components
PDU 5	Power supply for front row/first row conference participants (TX9000 and TX9200 systems) Total watts: 1440
PDU 6	Power supply for second row conference participants (1 of 2) (TX9200 systems only) Total watts: 1440
PDU 7	Power supply for second row conference participants (2 of 2) (TX9200 systems only) Total watts: 1440

Cabling and Room Considerations for Second Row Seating For the TX9200

To connect the participant convenience ports in the TX9200 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 2-5.

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 2-7 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.

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Caution THESE MEASUREMENTS DEPEND ON THE PLACEMENT OF THE REFLECTOR WALL. Failure to account for the reflector wall depth can result in an incorrect trench location. For systems that use a wall-mounted reflector wall, add 3" (76 mm) to the rear wall dimensions to account for the thickness of the reflector wall and mount. For free-standing systems that use the minimum distance between the reflector wall and the wall of the room, add 8" (203 mm). Add more depth if you plan to install the reflector wall farther away from the rear wall.

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Figure 2-5 Cable Trench Location for TX9200

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 an example information, see Figure 2-6.

Figure 2-6 Example of Floor-Mounted Junction Box for Second Row Power Connectivity

Location of Electrical Outlets for Systems that Use a Wall-Mounted Reflector Wall

If your system uses a reflector wall that attaches directly to the wall, you should design a room with electrical outlet placement as shown in Figure 2-7.

Figure 2-7 Location of Cutouts in the Wall-Mounted Reflector Wall

HVAC Considerations For the TX9000 and TX9200

This section includes the heating, ventilation, and air conditioning (HVAC) recommendations and requirements for the TX9000 and TX9200 systems and includes the following topics:

•HVAC Considerations for the TX9000

•HVAC Considerations For the TX9200

HVAC Considerations for the TX9000

Planning the cooling for a TX9000 TelePresence room is important to ensure the room remains comfortable for participants and to protect the equipment by maintaining normal operating temperatures.

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

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The table summarizes the specific BTU output of a TX9000 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 colors that are based on the TX9000 and TX9200 color palette. For more information, refer to the Cisco TelePresence Wall Color Guide 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 (22.2-24.4 degrees C).

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

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Note 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.

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Table 2-16 CTS  BTU Output with 25% diversity 

Source	Typical kW	Typical Usage BTUs/hr
System Power	2.27	5800
System Lighting	0.35	891
6 Participants (Avg)	0.39	998
3 Laptops (Avg)	0.17	422
Ceiling Lights (1.4w/sqft)	0.53	1357
	Total Typical Heat Dissipation	9,500 BTU/Hr

To ensure efficient cooling of the room, the air intake and outflows should be placed as described in Figure 2-8.

Figure 2-8 HVAC Placement Example

Table 2-17 Callouts for Figure 2-8

Callout	Description
Orange box with one arrow	Air intake.
Blue box with four arrows	Air outflow.

For greater volume of airflow with less noise, we recommend using an NC 30 Rated Diffuser in your HVAC design. HVAC systems without diffusers may generate ambient noise loud enough to interfere with the audio in the room.

Figure 2-9 NC 30 Rated Diffuser

HVAC Considerations For the TX9200

Planning the cooling for a TX9200 TelePresence room is important to ensure the room remains comfortable for people in it and to protect the equipment by maintaining normal operating temperatures.

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

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The table summarizes the specific BTU output of a TX9200 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 colors that are based on the TX9000 and TX9200 color palette. For more information, refer to the Cisco TelePresence Wall Color Guide 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.

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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.

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Table 2-18 TX9200 BTU Output with 25% diversity 

	TX9200
Source	Typical kW	Typical Usage BTUs/hr
System Power	2.46	6286
System Lighting	0.35	891
12 Participants (Avg)	0.78	1997
8 Laptops (Avg)	0.44	1126
Ceiling Lights (1.4w/sqft)	0.99	2534
	Total Typical Heat Dissipation	12,800 BTU/Hr

Acoustic Considerations For the TX9200

For the immersive 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 frequencies)

•Noise Criteria no greater than 30

Meeting rooms large enough to accommodate a TX9200 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 TX9200 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 TX9200 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 2-10, 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 2-10 Asymmetrical Treatment with Acoustic Panels

Table 2-19 Description of Callout for Figure 2-10

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 2-11 Complete Acoustic Panel Treatment

Table 2-20 Description of Callout for Figure 2-11

Callout	Description
1	Continuous acoustic paneling covering all room walls.

Auxiliary Display Considerations For the TX9200

The TX9200 has an LCD display below its three primary video displays. 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 2-12.

If you want to install auxiliary displays using ceiling mounts, use the measurements provided in Figure 2-12 through Figure 2-14 and Table 2-21 through Table 2-23 to mount them.

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Caution Cisco does not provide the ceiling mounts. Make sure that the ceiling can structurally support the mount and that the installation complies with all applicable building codes and regulations.

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Figure 2-12 Auxiliary Display Considerations

Table 2-21 Callouts for Figure 2-12

Callout	Description
1	Height for a side mounted position is 64" (1.63 m) 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 TX system is 5'6" (1.68 meters) high, and the reflector wall is 7' (2.13 meters) high.
3	The lateral position for a side-mounted display is 10'6" (3.20 cm) from the center of TX9200. Note These measurements for side displays are based on 46-inch displays. For wider displays, move the displays farther away from the midpoint of the system.

Figure 2-13 Measurements for Ceiling Mounted Auxiliary Displays—Systems With a Free-Standing Reflector Wall

Table 2-22 Callouts for Figure 2-13

Callout	Description
1	The distance from the midpoint of the TX9200 system to the midpoint of the auxiliary display mount is 10'6" (3.20 meters). Note These measurements for side displays are based on 46-inch displays. For wider displays, move the displays farther away from the midpoint of the system.
2	The distance between the front edge of the room wall and the midpoint of the auxiliary display mount is 4'8" (1.42 meters).

Figure 2-14 Measurements for Ceiling Mounted Auxiliary Displays—Systems With a Wall-Mounted Reflector Wall

Table 2-23 Callouts for Figure 2-13

Callout	Description
1	The distance from the midpoint of the TX9200 system to the midpoint of the auxiliary display mount is 10'6" (3.20 meters). Note These measurements for side displays are based on 46-inch displays. For wider displays, move the displays farther away from the midpoint of the system.
2	The distance between the front edge of the reflector wall and the midpoint of the auxiliary display mount is 4' (1.23 meters). Note If the reflector wall has not yet been installed, measure 4'2 7/8" (1.29 meters) from the front edge of the room wall.