TeachLogic Spectrum IMA-840 Installation Manual Download Page 22

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Spectrum

™

Specifications

Sapphire (IRT-60) microphone/transmitter specs

Transmission Carrier

Infrared

Transmission Frequencies

2.08 MHz & 2.54 MHz

Channel Selection

Field Switchable

Transmitting Diodes

Six

Wavelength

850 nm

Modulation

FM Wide-Band

Frequency Response

100 Hz - 10 KHz

Pilotone Frequency

32.768 KHz

Peak Deviation

± 25 KHz

Dynamic Range

95.5 dB @ 2.8% THD

Operating Range

60 Ft. line of sight

Latency (mic to speakers)

0.87 ms

Battery Used

Lithium-ion polymer (3.7V / 620mAh)

Battery Life

8 hr/Charge

External Power Charger

5V DC Micro USB Connector

Transmission Angle

180° Conical

User Controls

Power (On/Off)

Press & Hold

Mute Switch (On/Off)

Momentary Press (blinks when muted)

Addt’l Mic Gain Control

Normal, -3dB, -6dB

Audio Source Vol./Gain

Increase, Decrease

Channel Select

(A or B) in battery compartment

External Mic/Aux Input

3.5 mm Line Level

Dimensions (H x W x D)

3.5” x 1.25” x 0.75”

Weight

1.4 oz including battery

Handheld (IRT-35) microphone/transmitter specs

Transmission Carrier

Infrared

Transmission Frequencies

2.08 MHz & 2.54 MHz

Channel Selection

Field Switchable

Transmitting Diodes

Ten

Wavelength

850 nm

Modulation

FM Wide-Band

Pilotone Frequency

32.768 KHz

Peak Deviation

± 25 KHz

Operating Range

50 ft. line of sight

Power Switch (Slide)

On/Off

Battery Charge Level (LED)

Green: Full | Orange: Medium | Red: Low

Battery Life

Approx. 7 Hr./Charge

Dimensions

2.125” dia. (Head), 1.4375” dia. (Body), 9.625” H

Weight

10.3 oz. w/ Battery

Summary of Contents for Spectrum IMA-840

Page 1: ...Spectrum IMA 840 Classroom Audio System Installation Manual ...

Page 2: ...ology and uses only premium quality components to assure many years of reliable performance We appreciate your confidence by your selection of our product It is TeachLogic s intent to uphold that confidence by providing factory assistance and reseller support This manual will help you learn to use and gain the maximum benefit of the system We hope you will take the time to review this manual to fa...

Page 3: ... are free of materials harmful to the environment They conform to European RoHS guidelines for consumer products Power Cord Caution Power cable should be routed clear of foot traffic and supported clear of kinking or abrasion Object Protection Locate the operating unit so it will not be subjected to falling objects or water entry Do not drill hole in or screw objects into the product except as spe...

Page 4: ...es Contact If you should encounter an unresolved issue please contact the TeachLogic customer service department for further assistance 760 631 7800 support teachtogic com teachlogic com Limited warranty For full warranty details refer to teachlogic com warranty ...

Page 5: ...on of Speakers 8 9 Installation of Ceiling Sensor 10 Integration 11 Page Mute Pass Through Integration 11 12 Fire Alarm Input 13 RS 232 Feature 15 Security Alert Feature 15 16 Configuration 17 Final Setup 17 Power Button Lights Standby Function 18 Troubleshooting 19 System Specifications 20 21 ...

Page 6: ...son Capture Output Volume Control 12 Lesson Capture Output Port 3 5 mm Back Panel 1 Speaker Output 2 Fire Alarm Mute Input 3 Page Input 4 Page Sensitivity Control 5 Page Input Voltage Selector 6 ALS Output 3 5 mm Gain Control 7 Five Band Equalizer Controls 8 RS 232 Input OFF ON Switch 9 Security Alert Interface 10 Aux Input Port 3 5 mm Aux Mic Line Input Level Selector 11 Computer Input Port 3 5 m...

Page 7: ...Spectrum System Diagram 6 www teachlogic com support teachlogic com 760 631 7800 ...

Page 8: ...n the center of the ceiling maintain line of sight to teacher locations keep away from direct sunlight and electrical interference 3 Speakers The Spectrum can power 8 classroom speakers Mark location for wall mount vs ceiling mount and confirm wiring run to the amplifier Ensure speakers evenly cover the listening area 4 Integrations Connections Confirm location of other systems you plan to connect...

Page 9: ...n 4 speakers space the next row s accordingly Ceiling Speakers Locate and identify the center most tile in each quadrant Wall Speakers First observe the shape of the room ceiling height door locations windows mounting surface and seating area Ordinary installation would be to locate the speakers on each side wall beginning at the front row of listeners approximately 6 7 feet above the floor ...

Page 10: ...s of amplified audio rated for a minimum 4 ohm speaker load two 8 ohm speakers each connected in parallel provide 4 ohms impedance There are two blue phoenix style speaker connectors on the back panel each providing two pairs of speaker terminals The top connector provides connection to two different channels as does the bottom connector ...

Page 11: ...e reliable performance For additional coverage or in large rooms a second IR sensor may be placed on ceiling or a wall and connected to the second sensor input As many as three sensors may be powered by the amplifier use a wye adapter for two of them to connect to one input The max cable length is 100 ft Installation 1 Attach to T bar rail Installation 2 Concrete or Drywall Surface Installation 3 ...

Page 12: ...rs to the 2 pin Phoenix connector of the Page input 3 Reconnect the 2 pin green Phoenix connector 4 Determine the signal level of the paging system 4V 25V or 70V 5 Set the Page Mute slide switch to the appropriate speaker level setting 6 With the TeachLogic amplifier turned ON send a page to test the mute function 7 Adjust the sensitivity control to ensure the amplifier senses the page signal noti...

Page 13: ... switched on or off by a side panel switch See Table 2 IMAPORTANT The system does not pass through paging audio signal to the speakers when the amplifier is powered off or no power is available PPT on ALS output The amplifier routes the paging input signal by passing it through to the assistive listening system ALS output and Conference Output so that students using ALS products will hear broadcas...

Page 14: ...lp to lower the overall decibel levels and help students and staff hear the audible fire alarm tones instruction within the classroom Audio resumes at original volume 11 seconds after closure ceases being detected CONNECTION This feature requires a contact closure from the Fire Alarm Panel and the TeachLogic terminal is for a normally open connection Fire alarm system connects to a 2 pin Phoenix c...

Page 15: ...anel controller or other device The third party RS 232 device is connected via three wires to the back panel connector shown to the right TX Gnd RX This allows the receiver amplifier to be placed in an area or compartment that is not easily accessed by the user Codes that are required for this setup are available on the teachlogic com resources page under Application Notes or directly at https Tea...

Page 16: ...s it sends a signal to the ceiling sensor which passes through the amp to the security alert interface an electric relay The relay contacts opens or close depending on the normal status to pass the signal through the paging system as if the paging system s wall mounted button was being pressed The amplifier functions normally during the alert e g there is no change to audio input output volume cha...

Page 17: ...phire microphone by holding the TL button until it illuminates 2 Once the TL is illuminated solid blue locate the Priority switch on the side of the microphone 3 While looking at the amplifier s power button press hold the microphone s Priority button for 5 seconds after which time the amplifier s power button will rapidly flash green There will be an audible clicking sound from the amplifier when...

Page 18: ...t be changed to channel B to avoid interference Watch the how to video on teachlogic com resources Note Next steps should be performed with a second person as the listener Stand under or in front of a speaker Hold the microphone with the top at your collarbone and observe the speaker volume in the room by speaking in a natural voice Raise the volume on Ch A until feedback begins then reduce volume...

Page 19: ...ashing Indications of Security Alert pulse mode see section above Green Flashing Security Alert activated System Standby Function Standby Mode is a feature that reduces power consumption after the amplifier has not been used to amplify audio signal for a period of two hours After entering the automatic standby mode the amplifier displays an amber light at power button Normal ON mode may be resumed...

Page 20: ... on mic indicates it is muted Ensure gain volume control knob on amplifier receiver is turned up to mid scale 12 o clock position On amplifier receiver ensure a green LED is illuminated just below Ch A or Ch B knob depending on the microphone used If no LED is illuminated Check the green LED on the ceiling sensor If sensor LED is not lit Sensor has been disconnected check cable plug ends or Power ...

Page 21: ...mputer Wired Mic Input 1 aux input switchable to mic input Line Outputs Conferencing 3 5 mm with gain control front panel Assistive Listening System 3 5 mm with gain control rear panel Page Input 2 pin Phoenix 4 V 25 V or 70 V normal Page Input Sensitivity 51 mV min Security Alert Contact Closure COM N O N C Fire Alarm Contact Closure by fire panel mutes audio Output Impedance Rated Load 4Ω minimu...

Page 22: ... Off Press Hold Mute Switch On Off Momentary Press blinks when muted Addt l Mic Gain Control Normal 3dB 6dB Audio Source Vol Gain Increase Decrease Channel Select A or B in battery compartment External Mic Aux Input 3 5 mm Line Level Dimensions H x W x D 3 5 x 1 25 x 0 75 Weight 1 4 oz including battery Handheld IRT 35 microphone transmitter specs Transmission Carrier Infrared Transmission Frequen...

Page 23: ...P N UMM 840 20210610 541 Main St Longmont CO 80501 TeachLogic com Support TeachLogic com 760 631 7800 ...

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