Qt 600™

ContentsTOPIC

System Overview

Installing The Control Module

Installing Qt PRO Emitters

Connecting to Software

Installing Audio Inputs

Installing Contact Closures

Custom Cabling Guidelines

Post Installation Handoff

Specifications

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Purchase date:_____________ Install date:____________

MAC Address____________________________________

If you have a problem, question, or request, callyour local dealer, or Steelcase Line 1 at888.STEELCASE (888.783.3522)for immediate action by people who want to help you.

(Outside the U.S.A., Canada, Mexico, Puerto Rico, and the U.S. Virgin Islands, call: 1.616.247.2500)Or visit our website: www.steelcase.com

"Qt PRO™" is a licensed trademark of Cambridge Sound Management, 27 Moulton Street, Cambridge,MA. The trademarks are used with permission.

Sound Masking - Paging - Music

Installation Guide

The system supports six zones of sound masking, each with1 to 120 speakers covering 100 to 12,000 square feet perzone. Two audio inputs can be used for paging and/or music.Additional controls for each zone include time-of-daymasking, auto ramping, self-monitoring fault detection andnotification, and independent equalizers for masking andaudio inputs. The system may be operated from its controlmodule front panel OR by a directly-connected computer ORby a computer connected through a local area network. See“Front Panel Control” and “Software Control” in theOperations Guide.

Installing The Control Module

Note: Always plug/unplug power supply at wall outlet.

Wall Mount

1. Mount the bracket using the three screws and plasticanchors (mollies) provided. Use a 1/4 inch drill bit for theanchor hole. See figure 2. Plastic anchors are #10-12 x 1-1/4”with #10 x 1-1/2 screws.

2. Check to see that the panel lock switch is in theUN-LOCKED position.

Figure 1

NOTE:

The control module hinges forward for wall mounting andcable installation. To hinge forward, loosen screws A and B(see Figure 2) used to secure the module during shipping.

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Rack Mount

Attach optional rack mount brackets to each end of thecontrol module. Refer to instructions included with rackmount brackets.

When rack mounted, the control module does not hingeforward.

1. Remove Qt 600 and power supply bracket from wallmount bracket.

2. Reassemble power supply to right rack mount bracketusing #6-32 black screws.

3. Fasten left and right rack mount brackets to Qt 600.

4. Mount Qt 600 to 19” cabinet rail using #10-32 screws asshown.

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Wall Mount Bracket

Power SupplyBracket

Right rackmount bracket

B

Installing Qt PRO Emitters

GENERAL NOTES:

• Each (home) run attached to the control module must be labeled by zone.

• Each zone has two identical outputs, run 1 and run 2. All speakers on run 1 and run 2 are controlled equally for each zone.

• Each job-made run should be manufactured according to ANSI/TIA/EIA Standard 568-B. See custom cabling guidelines on page 9.

• Job-made cables should be tested with a LAN tester before installation.

Installation Order

1. Press + on the front panel and increase the output level ofall zones to level 20.

2. Refer to the emitter layout and wiring diagram providedby the dealer for cable run connections by zone.

3. Run home run cables from control module to the locationof the first emitter for all runs in all zones.

4. Gather all ceiling tiles (per layout drawing) that are toreceive emitters. Use the supplied hole saw to cut holes indesignated tiles. Cut all tiles from the front. (Different typesof emitter housings are available to attach in areas wherethere are no suspended ceilings)

5. Push the emitter through the front of the hole in tile andsecure it by pushing down and twisting the locking ring at theback of the emitter.

NOTE:

The “tombstone” hook on the back of each emitter is next tothe input jack. This can help you find the input jack by touch.

To adjust for unexpected obstacles such as sprinkler heads,each emitter may be moved up to two feet (one tile) in anydirection, if necessary.

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Zone Type Ceiling Height Vol. Level Intended Result

Open Area 8’ 13 - 16 45 - 48 dBA

Open Area 10’ 15 - 18 45 - 48 dBA

Open Area 12’ 16 - 19 45 - 48 dBA

Private Office ALL 05 - 09+ 38 - 42 dBA

6. Connect a run cable from the specified zone output jack onthe module to the INPUT jack of the first emitter. Listen toemitter as it is connected. If you cannot hear its “whooshing”sound, a. Try a different emitter. b. Test all four previous cables for continuity and shorts. Repair any faulty cables. c. If there is a short, masking the volume will shut off. The short should clear itself in approximately five minutes. If it does not, power cycle (unplug and re-plug) the control module.Be sure to fix any problems and hear the “whooshing” soundbefore installing the next emitter. If necessary see Errors inthe Operations Guide.

7. Connect the next OUTPUT cable to the emitter output jack.

8. Run a patch cable to next designated tile specified onemitter layout and wiring diagram. Tie cables up to structureor suspend from deck as required by local building code.

9. On the next emitter, connect this cable to the input jack.

10. Repeat Steps 4 through 9 for the remaining emitters onthe home run.

11. Set sound masking volume levels for each zone, using thefront panel controls. Set sound levels according to Table 1.

NOTE:

The input jack ofeach emitter bearsthis symbol:

The output jack ofeach emitter bearsthis symbol:

Table 1

Connecting to Software

Installing a computer or network connection

1. Loosen screws A and B and hinge the control moduleforward.

2. Make a direct computer connection to the jack markedETHERNET (see Figure 3) on the control module ORconnect to a local area network (LAN).

Figure 3

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OR

LAN

Installing Audio Inputs

The Qt PRO’s audio input expects a dry (no DC, no dial tone,no ringer voltage), line-level signal. It is important tounderstand what type of source signal you have, especiallywith paging, as there are varied paging source signals -some of which are incompatible with the Qt PRO’s audioinput. A phone system (PBX) is a common example of apaging source that offers different output signal types. If yourpaging source is a PBX, it is strongly recommended that youcontact the PBX supplier to confirm that its paging outputsignal is compatible with the Qt PRO’s audio inputspecification (page 11). If compatible, connect the PBX’spaging port to the Qt PRO’s audio input as shown below.If not compatible, you will need to obtain an expansion portfor your PBX that is compatible with the Qt PRO’s audioinput, or deploy a “paging controller” designed to interworkvarious paging sources to a paging amplifier, such as theQt PRO. Contact Steelcase Line 1 at 888.STEELCASE(888.783.3522) with questions.

1. Be sure power is OFF by unplugging power from walloutlet.

2. Balanced Audio Input: (For balanced audio input, mostoften, but not always characteristic of paging systems.)Connect signal wires to + and - at input A or B. Connect theshield to GND at the audio source.

3. Unbalanced Audio Input: (For unbalanced audio, typicalof music systems.), A. Mono Signals: Connect signal wire to L at input A. Connect the ground wire to GND. B. Stereo Signals: Connect signal wires to L and R at input A. Connect the ground wire to GND.

4. If a music source is to be connected, use Input B to allowemergency music shut-off. See Contact Closures on page 8.

5. See Operations Guide for sensitivity settings and volumecontrol.

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Installing Contact Closures

The Qt PRO 600 system provides an instant shut-offcapability for Masking and/or Audio Input B if connected to acontact closure interface. The contact closure utilizes thesame style connector as audio Inputs A and B (4-pin).

To shut off Masking, connect a two conductor cable to thetwo connectors on the right, labeled M3V and MGND. Toshut off Audio B Input, connect a two conductor cable to thetwo connectors on the left, labeled B3V and BGND. To shut off both masking and audio B, connect one wire toM3V and B3V. Connect the second wire to MGND andBGND.

The associated audio function resumes automatically whenthe connection is broken.

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Custom Cabling Guidelines

For system compliance, follow these guidelines if customcables are required:

1. Use solid conductor 24 AWG CAT cable that meets localcode requirements.

2. If the system is installed in a return air plenum, the cablemust be plenum rated.

3. Shielding is not required. Unshielded twisted pair (UTP)cable is acceptable.

4. Snagless boots are not required.

5. RJ-45 plugs must use the “bent 3-tyne” RJ 45 plugsintended for use with solid core CAT wire. Three tyne plugscan be purchased at Home Depot and from most CAT cablesuppliers. DO NOT USE the “aligned two-tyne” type intendedfor stranded wire, as they provide improper contact and mayyield intermittent system operation. The diagram below showsthe end-on view of both types.

6. Field test each cable after fabrication with the RJ-45connectors (before final installation), using a standardnetwork LAN cable tester, to check for continuity, shorts,and 1:1 (straight through) connection.

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2 types of RJ-45 connectors:

CORRECT INCORRECTRJ-45 connector RJ-45 connectorwith bent tyne with aligned tyne

Post Installation Handoff

Perform a final walkthrough to satisfy all aspects of thesystem performance:

1. Be sure zone destinations and volume settings arerecorded in the Operations Guide.

2. Use the Print Settings tab on the Qt System Monitoringand Control Software to print all system information.

3. Store Installation Guide, Operations Guide and settingsprintout in the clear plastic job ticket holder next to the controlmodule. Note: The administrator is responsible formaintaining a record of system settings. If there is a hardmodule failure, the recorded values can be used toreconfigure the system. System settings are retained after apower outage.

4. Lock the Control Module panel by moving the toggle switchto the Locked position.

5. Lift the control module front panel and hinge it backwardinto its closed position. Tighten all retaining screws.

6. If operating by software control, show the administratorhow to connect to the Control module using both theHostname and IP Address methods.

NOTE:

On Qt 600 systems, click the HELP tab in the applicationfor detailed software control operating procedures.

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Qt 600 Specifications

Control module:

Power consumption:

Inputs (2):

Operating Temperature:

Integrated digital compression and limiting for paging

Frequency response(sound masking):

Frequency response(paging and music):

13.5 W x 3.5 H x 3.5 D (inches) 2 lbs.

4 watts max. per zone; 24 wattsmax per unit

40K Ohms input impedence, dry,line levelSensitivity: +4 dBu

40oF - 90oF

200 Hz to 5 kHz

200 Hz to 12.8 kHz

12 939500587 Rev. B