SECTION 4:40Troubleshooting Guide
Troubleshooting41Tips to Obtain Optimal Audio Performance
SECTION 5:42Warranty Statement
Warranty &
Specifications
43Safety Warnings and Certifications
44System Specifications
Page 4
IMPORTANT SAFETY INSTRUCTIONS
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use the apparatus
near water.
6. Clean only with dry cloth.
7. Do not block any ventilation
openings. Install in
accordance with the
manufacturer’s instructions.
8. Do not install near any heat
sources such as radiators,
heat registers, stoves, or
other apparatus (including
amplifiers) that produce
heat.
9. Do not defeat the safety
purpose of the polarized
or grounding-type plug.
A polarized plug has two
blades with one wider than
the other. A groundingtype plug has two blades
and a third grounding
prong. The wide blade or
the third prong is provided
for your safety. If the
provided plug does not fit
into your outlet, consult an
electrician for replacement
of the obsolete outlet.
10. Protect the power cord
from being walked on
or pinched particularly
at plugs, convenience
receptacles, and the point
where they exit from the
apparatus.
11. Only use attachments/
accessories specified by the
manufacturer.
12. Use only with a cart,
stand, tripod, bracket or
table specified by the
manufacturer, or sold with
the apparatus. When a cart
is used, use caution when
moving the cart/apparatus
combination to avoid injury
from tip-over.
13. Unplug this apparatus
during lighting storms
or when unused for long
periods of time.
14. Refer all servicing to
qualified service personnel.
Servicing is required when
the apparatus has been
damaged in any way, such
as power-supply cord or
plug is damaged, liquid has
been spilled or objects have
fallen into the apparatus,
the apparatus has been
exposed to rain or moisture,
does not operate normally,
or has been dropped.
15. When the mains plug or
appliance coupler used
as the disconnect device,
it shall remain readily
operable.
16. Please keep the unit
in a good ventilation
environment.
17. The speaker on/off switches
will not disconnect the
main power when in the off
position.
4
Page 5
SECTION 1:
OVERVIEW
SYSTEM COMPONENTS AND UNPACKING
The standard configuration of the CAT 885 will contain:
CAT 885 Amplifier
Amplifier Power
Supply
ISR Infrared
Sensor/Receiver
and Cable
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
Charging Cradle and
Power Supply
REDMIKE®
Classroom
Microphone
1. Overview2. Setup & Use
5
Page 6
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
Speakers and Speaker Wire
Systems can be configured with a variety of different speaker types,
including the following:
WMQ (x 4)
DRQ (x 4)
NXQ (x 1)
6
MCQ (x 1)
1. Overview2. Setup & Use
Standard Components
AMP-885Audio amplifier/mixer
PS-24V-2.524V/2.5A power supply for CAT 885
RX-ISRInfrared sensor/receiver with mounting bracket
CA-P5E5050’ plenum-rated Cat 5e cable
RMTREDMIKE classroom microphone with battery
BA-NH2A27AA NiMH rechargeable sensing battery for REDMIKE
AC-RMLC2REDMIKE lavaliere cord
BC-RMCCREDMIKE cradle charger
PS-5V-1.05V/1.0A power supply for cradle charger
SPEAKERSContact Lightspeed at 800.732.8999 for speaker info
Page 7
OPTIONAL COMPONENTS
Optional equipment which may be part of your CAT 885 system:
REDMIKE® VC
Volume Control
Microphone
REDMIKE Share
Handheld
Microphone and
Charger Cable
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
LT-71
LT-71 LightMic
and Charger
Cable
Optional Components
RMVREDMIKE VC microphone with battery
RMSREDMIKE Share handheld microphone with battery pack
LT71LightMic microphone with batteries
BA-NH2A27AA NiMH rechargeable sensing battery for REDMIKE
BA-NH2APKNiMH rechargeable battery pack for REDMIKE Share
BA-NH1AA NiMH rechargeable battery for LT71 (2 per microphone)
1. Overview2. Setup & Use
7
Page 8
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
FRONT PANEL CONTROLS
1
3
2
4
2
5
6
7
1. Overview2. Setup & Use
1. POWER SWITCH/INDICATOR:
Press this button to turn the CAT
885 ON (pushed in) or OFF. When
the POWER is switched on, the
blue LED indicator will light.
2. AUDIO INDICATORS: These
lights flash red when audio (voice)
from the microphone is detected.
3. A VOLUME: Controls the volume
of the teacher microphone (set to
channel A).
4. B VOLUME: Controls the volume
of the student or second teacher
microphone (set to channel B).
5. AUDIO INPUT VOLUMES:
Control the volume of the audio
coming from the media source
(computer, TV/VCR, CD/DVD, etc.)
connected to the corresponding
input the rear panel.
6. SPEAKER ZONING: These
switches turn the corresponding
speakers (connected to speaker
outputs in the corresponding
zones on the back panel) ON or
OFF.
7. ALD OUTPUT AND VOLUME:
This jack sends audio to external
equipment such as an assistive
listening device (Personal FM
System) or recording device.
Use the volume control to set
the optimum signal level for the
device.
8
Page 9
REAR PANEL CONTROLS
1
2
1. SPEAKER VOLUME (1-6):
Controls the output volume of
the corresponding speaker. Fully
clockwise represents maximum
audio level supplied to the
speaker.
2. SPEAKER OUTPUTS (1-6): This
euro-block connector is used
to connect the CAT 885 to the
loudspeaker(s). Up to two 8-ohm
speakers can be connected to
each output (maximum of 12
8-ohm speakers).
3 MONO/STEREO SWITCH: This
switch toggles between mono
and stereo speaker output for
channels 5 (left) and 6 (right). This
6
3
4
switch impacts only the multimedia
sources (voice is always is mono)
and only outputs 5 and 6.
4. DC POWER: Plug the power
supply (24V/2.5A) into this jack.
5. PAGING INPUT AND ADJ:
Connect the input from optional
PageFirst sensor here when
interface with a buildings paging
system. Use the ADJ control to
adjust the sensitivity if needed.
6. TEACHER VOICE PRIORITY: This
3-position switch activates the
Teacher Voice Priority function
5
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
9
Page 10
& Specifications
5. Warranty, Safety
7
9
12
10
11
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
8
7. AUX OUT AND VOL: This jack
sends audio to external equipment
such as an assistive listening
device (Personal FM System) or
recording device. Use the volume
control to set the optimum signal
level for the device.
8. 805iX INPUT: This input jack
allows for interface with the
Lightspeed 805iX wireless
microphone system, which adds
two additional microphone
channels.
9. AUDIO INPUTS: These
connections accept an audio
signal from other technology so
all multimedia can be distributed
evenly throughout the classroom.
10. 8-BAND GRAPHIC EQUALIZER:
These sliding controls allow the
installer to properly equalize the
system to produce optimum audio
quality.
11. SENSOR INPUT: The infrared
microphone audio from the ISR is
connected to this input via Cat 5
cable.
12. SENSOR SHORT: This LED glows
red when there is a short in the
ISR or cable. The system will not
operate, but is protected from
damage when the LED is lighted.
10
Page 11
INFRARED SENSOR/RECEIVER (ISR)
CONNECTIONS
2
& Specifications
5. Warranty, Safety
4
3
1. POWER INDICATOR: This light
will glow blue when the ISR is
receiving power from the CAT 885.
2. A/B IR INDICATORS: These lights
glow when the corresponding
microphone (set to channel A or
B) is turned on and transmitting.
A steady light indicates a strong
signal.
3. SENSOR OUT: Connect the Cat 5
sensor cable to this connection to
send audio from the microphones
1
to the CAT 885 amplifier.
4. IR EXPANSION: Connect up to
three passive IR sensors (IR-SR70F)
to this connection for larger
classrooms. For more than one
additional sensor a 3-way coax
splitter is required (HS3).
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
11
Page 12
& Specifications
5. Warranty, Safety
REDMIKE CONTROLS AND CONNECTIONS
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
1
4
2
3
1. POWER BUTTON: Press this
button to turn the REDMIKE ON,
press again to turn it OFF (mute).
2. POWER/LOW BATTERY
INDICATOR: A BLUE light
indicates the REDMIKE is on and
fully charged. A RED light indicates
a charge is needed.
3. BATTERY COMPARTMENT: To
access the battery compartment,
slide the door downward. The
battery should only be replaced
by a Lightspeed AA rechargeable
sensing battery (part # BANH2A27).
4. YELLOW PROTECTIVE TAB:
Slide the battery compartment
door open to remove this
disposable protective tab before
use. NOTE: do not attempt to
remove the tab without first
R
S
e
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m
i
d
o
e
v
b
e
a
t
t
a
t
b
e
r
b
y
e
d
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o
o
r
o
e
r
u
o
s
p
e
e
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5
7
opening the compartment door, as
it may tear, leaving fragments.
5. AUDIO/MICROPHONE INPUT:
Use this input to plug in a laptop,
MP3 player or other audio
source to wirelessly transmit
audio to be played through the
system. Alternatively, an external
microphone can be connected.
6. CHANNEL SELECT SWITCH
(CH A/B): This switch allows
for selection between Channel
A or B. If you are using a single
microphone, we recommend using
Channel A.
7. CHARGER CONTACTS (+ -):
These contacts interface with the
charging tabs in the BC-RMCC
cradle charger for daily charging.
Simply place the REDMIKE in the
charger.
6
12
Page 13
CRADLE CHARGER CONTROLS AND
CONNECTIONS
& Specifications
5. Warranty, Safety
4. Troubleshooting
1
2
1. CHARGE INDICATORS: The light
glows RED while the REDMIKE is
charging. When fully charged, the
light will glow GREEN. A blinking
RED light indicates that no battery
is sensed, (REDMIKE Yellow
Protective Tab may not have been
completely removed—see page
5, item 4.) A blinking Green LED
means a non- Lightspeed battery
has been installed (possibly an
alkaline battery).
3
2. DC POWER PORT: Connect the
5V/1.0A DC power cord here.
3. OPTIONAL CHARGING PORT:
Plug the charging cord for the
optional LT-71 or the REDMIKE
Share microphones here.
3. Optional
Accessories
1. Overview2. Setup & Use
13
Page 14
& Specifications
5. Warranty, Safety
4. Troubleshooting
SECTION 2:
SET-UP & USE
1. LOCATION OF THE AMPLIFIER
First, find a suitable location to set-up the amplifier. It is best to put the amplifier
in a stable location near the other equipment to be used. If this is not possible,
an optional Lightspeed wall shelf can be installed.
3. Optional
Accessories
1. Overview2. Setup & Use
Media Cabinet Set-up
Avoid Separated Set-ups
Components should be located
together. Wires should be routed
directly back to the amplifier.
Wall-mount Set-up
The optional Lightspeed wall shelf
(part #AC-800WB) is specifically
designed to support the CAT 885.
14
Page 15
2. IR SENSOR/RECEIVER (ISR) INSTALLATION
Next, find a suitable location for the ISR. Poor location will cause substandard
performance of the CAT 885 Classroom Audio System. The ISR should be as
high as possible in the room – the ceiling is the best location, centered along the
longest wall in the room. When possible, use a conduit to protect the wires (not
included). Poor choices for placement are corners, on walls at heights lower than
7 feet (2 meters), or in places where the line of sight from the ISR to the receiver
is or could be obstructed.
& Specifications
5. Warranty, Safety
4. Troubleshooting
Good placement
Conduit is Recommended
Best placement
Avoid!
3. Optional
Accessories
1. Overview2. Setup & Use
15
Page 16
2. IR SENSOR/RECEIVER (ISR) INSTALLATION
CONT’D
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
Once you find a suitable location for the ISR, follow these instructions to mount
it. There are different instructions for mounting depending on if the ISR will be
mounted to a suspended ceiling grid or secured to a wall / solid vertical surface.
Suspended Ceiling Mount
1. Attach the bracket to the ceiling
tile grid (t-bar).
a. Slide the tabs onto the outsides
of the t-bar, starting with one
corner.
b. Attach the second tab around
the other side of the t-bar.
c. Repeat with the other side of
the bracket so it is connected at
all four points.
2. Slide the ISR onto the bracket until
it “clicks” into place.
a. Guide the mounting rails onto
the bracket, oriented as
pictured.
b. Once secure, the ISR locks into
place.
c. To remove the ISR, press the
release bar down and slide the
ISR off the bracket. (We need to
label the “release bar” on the
ISR Image that shows “clip
guide”)
clip connects to t-bar on ceiling
16
3. Uncoil the Cat 5 sensor cable.
Connect one end of the cable to
the ISR. Secure wire overhead and
route it back to the system.
4. Connect the other end of the Cat
5 sensor cable into the SENSOR
INPUT jack on the CAT 885
amplifier.
Page 17
2. IR SENSOR/RECEIVER (ISR) INSTALLATION
CONT’D
Wall/Solid Ceiling Mount
1. Screw the bracket to a place high
on the wall or in the middle of the
solid ceiling. Mount the bracket
horizontally as shown above.
2. Uncoil the Cat 5 sensor cable.
Connect one end of the cable to
the ISR. Route the wire back to
the CAT 885 amplifier, securing
it along with way using surface
raceway where possible.
3. Slide the ISR onto the bracket until
it “clicks” into place.
a. Guide the mounting rails onto
the bracket, oriented as
pictured.
b.Once secure, the ISR locks
into place.
c. To remove the ISR, slide a ruler
or screwdriver behind the ISR to
press the release bar down and
slide the ISR off the bracket
4. Connect the other end of the Cat
5 sensor cable into the SENSOR
INPUT jack on the CAT 885
amplifier.
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
17
Page 18
3. SPEAKER INSTALLATION
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
1. Locate the speaker installation
instructions packed with your
speaker(s).
2. Follow instructions and mount
speaker(s).
3. Return to this manual to complete
the set up of your system.
4A. CONNECT THE POWER SUPPLY
1. Ensure the power button is
depressed in the OFF position.
2. Connect the DC end of the power
supply to the black power jack
labeled DC POWER.
3. Connect the black AC power cable
from the power supply to a wall
outlet.
18
1. Overview2. Setup & Use
CAT 885 Amplifier
DC Power Source Cable
Page 19
4B. ISR CONNECTION
Check the connections from the ISR Sensor to the CAT 885. Ensure the CAT 885
is plugged into an electrical outlet.
1. Ensure the power is still switched
off.
2. Check the connection from the ISR
to the CAT 885. Ensure the sensor
cable is securely attached and
locked into place.
ISR Sensor/Receiver
CAT 885 Amplifier
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
19
Page 20
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
4C. SPEAKER CONNECTIONS
1. Ensure the power switch is in the
off position
2. Ensure speaker wire connections
are secure and not frayed. Under
normal conditions, each speaker
volume control should remain at
maximum level (fully clockwise).
20
1. Overview2. Setup & Use
Page 21
4D. AUDIO INPUT CONNECTIONS
1. Connect any auxiliary audio
sources to the corresponding
labeled input. (See following
page for more information about
integration with other classroom
audio sources).
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
21
Page 22
& Specifications
5. Warranty, Safety
5. AUDIO INTEGRATION
The next step in setting up your CAT 885 system is to connect it to the other
multimedia devices in your classroom. You may have a computer, television,
DVD/VCR player, a visual projection system or other devices. Below are
instructions on how to integrate TV/VCR, CD/DVD or computer directly into the
CAT 885.
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
1. Ensure the power is switched
off and the audio input volume
controls are turned all the way
down.
2. Connect the appropriate RCA or
3.5mm audio cable (not included)
from the audio source into the
corresponding input jack on the
rear panel of the CAT 885.
One Possible Set-up
3
2
4
5
3. With both the CAT 885 and the
audio source power on, adjust the
corresponding volume control on
the CAT 885 until the desired level
is achieved.
6
7
1
22
1. PROJECTOR
2. LAPTOP
3. CAT 885
4. DVD
5. ISR SENSOR
6. TEACHER’S MICROPHONE
7. SPEAKERS
Page 23
6. CHARGING THE REDMIKE
Before use, the REDMIKE should be charged. It will take 8-9 hours for the
REDMIKE to obtain a full charge. A fully charged REDMIKE will last for over 7
hours of use. If microphones are used daily, they should be kept in the cradle –
microphones can be left in a charging cradle constantly for up to 2 weeks without
causing degradation to battery life.
A red light on the charging cradle indicates the REDMIKE is charging. A green
light indicates that charging is complete and a full charge has been reached. A
blinking light indicates a charging or sensing error. See Troubleshooting section
for more information.
REDMIKE incorporates alkaline protection into the microphone design. Always
use a Lightspeed rechargeable sensing battery. Replacement AA NiMH batteries
may only be purchased through Lightspeed Technologies (part # BA-NH2A27).
Do not attempt to charge alkaline batteries. They can overheat and expand
creating a significant hazard and damaging the microphone (this is not covered
by warranty).
1. Plug power cord into the cradle
charger and then plug the AC end
into an electrical outlet.
2. Ensure that the REDMIKE is turned
OFF.
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
3. Place the REDMIKE into the
cradle. The LED on the cradle
will glow RED indicating charging
has started. When the REDMIKE
is fully charged the LED on the
cradle charger will change to
GREEN.
1. Overview2. Setup & Use
23
Page 24
& Specifications
SENSOR INPUTS
SENSOR
SHORT
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
7. OPERATING THE REDMIKE
Once the REDMIKE is charged, follow these steps to set it up for use.
1. Turn the CAT 885 power on. The
blue LED will glow.
2. Remove the REDMIKE from the
charging cradle and turn it on.
3. Slip the REDMIKE with lanyard
around the neck and position the
top of the microphone just below
the collarbone. NOTE: Positioning
of the REDMIKE is critical for
proper volume adjustment.
4. While speaking in a normal voice
slowly increase the volume of the
corresponding channel on the
CAT 885 until your voice is barely
audible. Each REDMIKE has its
channel pre-set to either A or B, as
indicated on the back of the Mic.
REMEMBER: This equipment
supplements the user’s voice so they
are able to speak in a conversational
tone. Having the volume set too high
will result in feedback and listener
fatigue.
5. Once initial volume level is set,
walk around the room and listen
for audio dropout and overall
audio quality. Fine-tuning the
audio is accomplished by making
minor adjustments to the 8-Band
Equalizer on the back panel of the
CAT 885.
6. If a second REDMIKE was
purchased, repeat steps 2-4.
250 400
700
1K 1K4
+10
2K5
4K
6K
24
0
-10
Page 25
8. INITIAL SET-UP OF SPEAKER AUDIO
SENSOR INPUTS
SENSOR
SHORT
Audio Equalization of the CAT 885
The CAT 885 uses an 8-band audio
equalizer designed to optimize and
fine-tune the microphone sound
quality for the classroom. Below
are some tips on proper system
equalization:
• Thevoiceshouldbenatural,
very clear and without any audio
feedback (ringing)
• Walktheroomlisteningforthe
overall quality and any feedback
that is present
• Ifthereisalotofaudiofeedback,
it is likely the volume is too high.
Ensure the volume is at the
appropriate level, a second person
is helpful to determine this.
• Iffeedbackisstillpresentwiththe
audio set at the right level, make
the following EQ adjustments:
– High pitched ring: lower the
2K5 and/or 4K adjustment about
halfway
– Lower pitched ring: lower the
400 and/or 1K adjustment about
halfway
• Ifyounoticethesoundis“muddy”
or has too much bass:
– Lower the 400 adjustment by
about halfway and/or
– Raise the 2K5 or 4K adjustment
above the centerline by about
1/4
– Note: the EQ adjustments
should be preset at “0” or
halfway from the top. This is the
nominal level and any adjust ments (up or down) should be
made from this level.
250 400
700
1K 1K4
+10
0
-10
2K5
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
6K
4K
1. Overview2. Setup & Use
Speaker Control
SPEAKER ZONING: By “zoning”
or separating the classroom into
different areas where audio may
or may not be desired, the teacher
has greater flexibility controlling the
dispersion of sound throughout the
room. Zoning is especially useful in
large classrooms and media centers.
SPEAKER VOLUME CONTROL:
An area of the classroom might
contain a noise emitter such as an
HVAC system. In this case, it may be
necessary to turn up the volume of
the affected speaker to overcome the
noise in that area. When this situation
arises, the CAT 885 allows the user to
fine tune the output level.
25
Page 26
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
9. SETTING MIC PRIORITIES
Teacher Voice Priority
This feature allows the teacher’s voice
to be heard over the other audio
being played through the CAT 885.
The three-position switch has the
following functionality:
• OFF:Normaloperation—turns
Teacher Priority off.
• CH.B/AudioIN:Teacher’svoice
(the microphone set to Channel
A) has priority over the student
microphone (Channel B) and audio
inputs. When the teacher speaks
into the microphone, the audio of
the other sources will mute. When
the teacher stops talking or the
REDMIKE is turned off, the audio
returns.
Page First: Priority Mute
• AudioIn:Teacher’svoicehas
priority over any audio sources that
are plugged into the Audio Inputs
only (Computer, TV/VCR, CD/DVD,
etc.). When the teacher speaks
into the microphone, the audio of
the input sources will mute. When
the teacher stops talking or the
REDMIKE is turned off, the audio
returns.
26
1. Overview2. Setup & Use
This optional feature interfaces with
an independent classroom paging
system. When the page is broadcast,
all audio from the system is muted,
ensuring important school-wide
messages are never missed.
How it works:
1. PageFirst sensor clip is hung
around the lead wires attached to
the classroom paging speaker.
2. The clip is hard-wired to the CAT
885.
3. As a page is broadcast, the
sensor clip detects the audio
signal through induction and
immediately mutes the CAT 885.
4. When the page is over, the audio
from the CAT 885 returns to
normal volume level.
(For full installation details refer to
the install sheet included with the
optional PageFirst sensor clip)
Page 27
OUTPUT TO ASSISTIVE LISTENING DEVICE
1. Turn the ALD (Assistive Listening
Device) volume control on the
back panel all the way down (fully
counterclockwise).
2. Determine the size and type of
audio input jack on the device as
many manufacturers’ products
differ in connector size and shape.
The Lightspeed LES-370 Personal
System requires a 3.5 mm to
3.5 mm patch cable (part# CAMMC3535, not included).
3. Connect a patch cable from the
ALD’s microphone jack or AUX
input to one of the following
3.5mm audio jack on the CAT 885:
• “ALDOUT”onthefrontpanel
• “AUXOUT”onthebackpanel
4. Adjust the volume control on the
ALD’s receiver to maximum output.
NOTE! This is to set the maximum
allowable signal from the CAT 885.
5. With the CAT 885 and ALD turned
on, speak into the REDMIKE and
slowly adjust the corresponding
volume control on the CAT 885
until the appropriate audio level is
obtained in the ALD.
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
27
Page 28
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
USING THE REDMIKE TO AMPLIFY
EXTERNAL AUDIO EQUIPMENT
The REDMIKE includes a 3.5mm audio input jack to connect to an audio source
like a laptop or MP3 player. The REDMIKE will transmit the audio signal to be
played through the system.
If your system includes two REDMIKEs, we recommend using Channel B (student
mike) to amplify the external audio equipment so the teacher’s volume on the
Channel A (teacher mike) does not have to be adjusted.
To determine which REDMIKE is set to Channel B, you can look at the switch on
the back of the mike or speak into one of the mics and watch which set of LED’s
glow on the front panel of the CAT 885 (A Volume or B Volume correspond to
Channels A or B).
1. Plug your external audio
equipment (for example, laptop),
into the input on the REDMIKE
labeled “INPUT” using a 3.5mm
patch cable.
AUDIO
INPUT
28
1. Overview2. Setup & Use
AUDIO
OUTPUT
2. Adjust the volume on the CAT
885 receiver which corresponds to
selected mic channel A or B.
Page 29
& Specifications
5. Warranty, Safety
3. Optional
Accessories
2. Setup & Use
1. Overview4. Troubleshooting
29
Page 30
& Specifications
5. Warranty, Safety
SECTION 3:
OPTIONAL ACCESSORIES
OPTIONAL REDMIKE VC (Volume Control)
Controls and Connections
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
1
4
2
3
1. POWER /MUTE BUTTON
2. POWER/LOW BATTERY
INDICATOR: A BLUE light
indicates the REDMIKE VC is on
and fully charged. A RED light
indicates a charge is needed.
3. BATTERY COMPARTMENT: To
open, slide the door downward.
The battery should only be
replaced by a Lightspeed AA
rechargeable sensing battery
(part # BA-NH2A27).
4. YELLOW PROTECTIVE TAB:
Slide the battery compartment
door and remove this disposable
protective tab before use.
5. AUDIO/MICROPHONE INPUT:
Use this input to plug in a laptop,
MP3 player or other audio
R
S
e
l
m
i
d
o
e
v
b
e
a
t
t
a
t
b
e
r
b
y
5
e
d
f
o
o
r
o
e
r
u
o
s
p
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e
n
8
source to wirelessly transmit
audio to be played through the
system. Alternatively, an external
microphone can be connected.
6. CHANNEL SELECT SWITCH (CH
A/B): Use this to choose Channel
A or B. If you are using a single
microphone, we recommend using
Channel A.
7. VOLUME CONTROLS (UP DOWN)
8. CHARGER CONTACTS (+ -):
These contacts interface with the
charging tabs when the REDMIKE
VC is placed in the BC-RMCC
cradle charger.
6
7
30
Page 31
REDMIKE VC : Charging
Before use, the REDMIKE VC should
be charged. See page 23 and
follow the same instructions for the
REDMIKE.
REDMIKE VC : Initial Set-up
See page 24 and follow the same
instructions for the REDMIKE to setup
the REDMIKE VC.
NOTE: A nominal volume level must
be set on the CAT 885 before adjusting
controls on the REDMIKE VC.
The teacher can now use the controls on
the REDMIKE VC to adjust the volume
level from anywhere in the room. The
microphone volume control has 4 steps
up and 4 steps down from the mid point
(9 levels total).
& Specifications
5. Warranty, Safety
3. Optional
Accessories
2. Setup & Use
1. Overview4. Troubleshooting
31
Page 32
& Specifications
5. Warranty, Safety
OPTIONAL LT-71: Controls and Connections
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
4
5
LT- 71
6
1. ON/OFF/MUTE Switch
2. CHANNEL SELECT SWITCH (CH
A/B): Use this to choose Channel
A or B. If you are using a single
microphone, we recommend using
Channel A.
3. POWER/CHARGE INDICATOR: A
BLUE light indicates the REDMIKE
VC is on and fully charged. A RED
light indicates a charge is needed.
4. EXTERNAL MICROPHONE
INPUT (MIC): Use the 3.5mm
MIC jack for the optional TK-250
headset microphone (part# MCTK250LTM).
1
LT- 71
2
3
5. AUXILIARY (AUX): Plug a laptop,
MP3 player or other audio source
into this jack to wirelessly transmit
the audio signal to be played
through the system.
6. CHARGER INPUT (CHARGER):
Plug the charging cable from the
charger into this jack for daily
charging. The LED on the front will
glow RED to indicate charging.
32
Page 33
LT-71: Charging
1. Ensure that the LT-71 is turned
OFF.
2. Make sure the cradle charger
is plugged into a wall outlet.
Connect one end of the charging
cable into the jack labeled
CHARGER on the side of the LT-71
and plug the other end into the
charging jack on the rear of the
REDMIKE cradle charger. The
LT-71’s rechargeable batteries are
factory installed. The LED on the
front of the LT-71 will glow RED
when charging.
3. Leave the LT-71 plugged in
overnight (8–10 hrs.) to obtain a
full charge.
& Specifications
5. Warranty, Safety
3. Optional
Accessories
2. Setup & Use
NOTE: If the system was purchased
without a REDMIKE or REDMIKE VC,
the LT-71 will utilize a charging cable.
Simply connect the charging cables
to the jacks labeled CHARGER on
the back of the amplifier and connect
the opposite ends to the jacks on the
back of the cradle charger.
1. Overview4. Troubleshooting
33
Page 34
& Specifications
LT-71
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
LT-71: Initial Set-up
Once the LT-71 is charged, follow these steps to set it up for use.
1. Turn the CAT 885 power switch to
the ON position. The RED LED on
the switch will glow.
2. Turn on the LT-71 and set the
operating channel to “B”.
3. Slip the LT-71 with lanyard around
the neck and position the top of
the microphone just below the
collarbone. NOTE: Positioning
of the LT-71 is critical for proper
volume adjustment.
4. While speaking in a normal voice
slowly increase the volume for
Channel B on the CAT 885 until
your voice is barely audible.
REMEMBER: This equipment
supplements the user’s voice
so they are able to speak in a
conversational tone. Having the
volume set too high will result in
feedback and listener fatigue.
34
1. Overview2. Setup & Use
Page 35
REDMIKE Share: Controls and Connections
& Specifications
5. Warranty, Safety
2
3
1
5
1. POWER SWITCH:
2. POWER/CHARGE INDICATOR:
this light glows blue when turned
on and turns off to indicate low
battery level. When charging, the
light glows red.
3. AUDIO INPUT: plug a laptop, MP3
player or other audio device into
this jack to wirelessly transmit the
audio signal to be played through
the system.
4. CHANNEL SELECT SWITCH
(CH A/B): Located in the battery
compartment, this switch is set to
Channel B at the factory.
5. CHARGER INPUT: Plug the
charging cable from the REDMIKE
cradle charger or into this jack.
4
3. Optional
Accessories
2. Setup & Use
1. Overview4. Troubleshooting
35
Page 36
REDMIKE Share: Charging
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
1. Ensure that the REDMIKE Share is
turned OFF.
2. Make sure the cradle charger
is plugged into a wall outlet.
Connect one end of the charging
cable into the jack labeled
CHARGER on the bottom of the
REDMIKE Share.
3. Plug the other end into the
charging jack on the rear of the
cradle charger.
4. The LED on the microphone will
glow RED to indicate charging.
5. Leave the REDMIKE Share
plugged in overnight (8-10 hours)
to obtain a full charge.
36
1. Overview2. Setup & Use
NOTE: If the system was purchased
without a REDMIKE or REDMIKE VC,
the REDMIKE Share will utilize the
BC-TXLT wall charger. Plug the wall
charger into an AC outlet and plug
the other end(s) into the CHARGER
jack on the REDMIKE Share.
Page 37
REDMIKE Share: Initial Set-up
1. Ensure the CAT 885 is ON. The
blue LED on the power button will
glow.
2. Turn on the REDMIKE Share
by sliding the switch to the top
position.
3. Grip the barrel in the center
section. Avoid covering the
infrared emitters just below the
microphone grille. This could
interrupt signal transmission.
4. While speaking in a normal voice,
increase the B VOLUME on the
CAT 885 level until your voice is
barely audible.
REMEMBER: This equipment is
designed to supplement and
distribute the user’s voice so they
are able to speak in a conversational
tone. Having the volume set too high
will result in feedback and listener
fatigue.
& Specifications
5. Warranty, Safety
3. Optional
Accessories
2. Setup & Use
1. Overview4. Troubleshooting
37
Page 38
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
INITIAL SET-UP:
OPTIONAL IR MEDIA CONNECTOR
1. Turn off the second microphone.
The iR Media Connector uses
the same channel (channel B) as
the optional second microphone
(REDMIKE, LT-71, or REDMIKE
Share). As a result, they cannot be
used simultaneously. If you have
a second microphone, turn it off
before transmitting audio from the
iRMC.
NOTE: If you adjust the CH B
volume on the classroom audio
system, you will also be changing
the volume for your second
microphone. Return the CH B
volume knob to the original
position before turning the second
microphone back on.
2. The iR Media Connector volume
is preset for most standard audio
signals. If you need to turn the
volume up or down, follow this
procedure:
A. Adjust the volume at the
computer, television, or other
audio source if possible.
38
B. If the audio source does not
have a volume control (such
as many DVD players) adjust
the volume at the iRMC.
C. If the first two options do not
give optimum volume level,
the last place to adjust the
volume is the CH. B Volume
on the CAT 885.
Page 39
OPTIONAL IR MEDIA CONNECTOR AUDIO
INTEGRATION
The iRMC is designed to integrate with the CAT 885 and multiple audio sources,
allowing other instructional technologies to be clearly heard throughout the
classroom.
& Specifications
5. Warranty, Safety
VGA Out
Video Out
Video Out
DVD/VCR
Audio Out
Audio Out
Audio Out
Audio In
Teacher’s
Microphone
iR Media Connector
Video In
Projector
IR Transmission
Projector
Speaker(s)
ISR Sensor
IR Sensor
Cat 885
OTHER OPTIONAL ACCESSORIES
ISR Sensor
3. Optional
Accessories
2. Setup & Use
1. Overview4. Troubleshooting
Other Optional Accessories
IRMCInfrared Media Connector
MC-TK250MNoise-canceling headset microphone
AC-TCC7Charging cable for REDMIKE Share and LT71
CA-RCA66’ dual RCA audio cable
CA-MSC35353.5mm to 3.5mm stereo audio cable
39
Page 40
& Specifications
5. Warranty, Safety
4. Troubleshooting
SECTION 4:
TROUBLESHOOTING
COMMON PROBLEMS AND SOLUTIONS
Note: Most problems are directly related to low battery power. Please run
through the “Battery Check” items first. For remaining troubleshooting, use
known good, fully-charged batteries.
3. Optional
Accessories
1. Overview2. Setup & Use
ALL PROBLEMS: Most Problems are
related to low battery power.
SOLUTION: Battery Check
• Conrmbatteriesarecharged
each night.
• Conrmproperbatteriesare
used. The REDMIKE requires
the Lightspeed BA-NH2A27
rechargeable sensing battery for
proper charging. The REDMIKE
Share uses the BA-NH2APK
rechargeable battery pack. The
LT-71 requires two BA-NH1 AA
rechargeable batteries.
• Makesurethemicrophonesare
turned off while charging so a full
charge is attained. Full charge will
last eight hours.
• Inspectthebatterycontacts.Clean
and adjust if necessary.
PROBLEM: Hearing Static
SOLUTION: Follow these steps to
eliminate static.
• Ensuresensorisinoptimum
location (refer to sensor placement
in manual). A single sensor will
cover a 1600 sq. ft. enclosed
classroom.
• EnsurethatnootherREDMIKE/LT-
71/REDMIKE Share is operating on
the same channel.
• IftheoptionaliRmediaconnection
is in use, set the microphone to
Channel A.
PROBLEM: Low Volume or Feedback
SOLUTION: Follow these steps to
eliminate low volume or feedback.
• Ensuremicrophoneispositioned
appropriately, just below the collar
bone.
• Checkvolumelevelonthe
amplifier. If the volume is too
high, feedback will occur. Adjust
accordingly.
• Adjustthevolumelevelonthe
back of the optional REDMIKE VC.
PROBLEM: No Sound From Speaker
SOLUTION: Follow these steps to
produce sound from speakers.
• TurntheCAT885on.Conrmthat
the POWER light located on the
front panel switch is on.
• Conrmsignalisbeingreceivedat
the CAT 885. The IR signal light will
be RED indicating a signal is being
received.
• ConrmthatREDMIKEisturned
on. There will be a BLUE LED on
the microphone to indicate it is
powered on.
40
If you review these instructions and still have questions, write down the
serial number and model number of your system and call Lightspeed
Technical Services at 800.732.8999, 5 a.m. – 5 p.m., PST.
Page 41
TIPS TO OBTAIN OPTIMUM AUDIO
PERFORMANCE
• Speakinanaturalvoice.Anormal
conversational speech level will
provide an adequate signal.
It is not necessary to increase
the intensity of your voice—the
audio system provides adequate
amplification (approximately 5 – 10
dB) above ambient room noises.
• Avoidwearingjewelrythatmayrub
or bump against the microphone.
• TurntheREDMIKEoffduring
private conversations with a
student, parent, or other classroom
visitor. You can also cover the LED
lens on top of the REDMIKE to
block the signal.
• Rechargebatterieseachnight.
When recharged nightly, operating
time (actual usage) for the
transmitters will last through a
typical school day.
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
41
Page 42
& Specifications
5. Warranty, Safety
SECTION 5:
WARRANTY, SAFETY &
SPECIFICATIONS
FIVE-YEAR LIMITED WARRANTY
4. Troubleshooting
3. Optional
Accessories
1. Overview2. Setup & Use
Lightspeed Classroom Audio Systems are guaranteed against malfunction due
to defects in materials and workmanship for a period of FIVE (5) YEARS,
beginning at the date of the purchase invoice. If such malfunction occurs, the
product will be repaired or replaced (at Lightspeed’s option) without charge
during the warranty period.
Lightspeed’s Warranty Exchange Program applies to all infrared systems within
the five (5) year warranty period. If an infrared product or component has
an issue that requires service, a refurbished replacement will immediately
be sent to the customer to minimize downtime. Customers will receive the
exchange product(s) or component(s) within 2-3 days. A prepaid return
label will be included with exchanged products so original malfunctioned
equipment can be returned to Lightspeed. Any exchanged equipment will
remain covered under the original five (5) year warranty.
1. Warranty on infrared microphones is FIVE (5) YEARS.
2. Warranty on Lightspeed NiMH rechargeable batteries is one (1) year.
3. Prepaid shipping label provided by Lightspeed for warranty repairs within
the U.S. Customers outside the U.S. should refer to the Lightspeed website
(www.lightspeed-tek.com) for warranty repair instructions.
4. Warranty does not extend to finish, appearance items, or malfunctions due
to abuse or operation other than specified conditions, nor does it extend
to incidental or consequential damages. Repair by other than Lightspeed
or its authorized service agencies will void this guarantee. Information on
authorized service agencies is available from Lightspeed Technologies, Inc.
Our Service Department (800.732.8999, 5 a.m. – 5 p.m., PST) will handle all your
repair/replacement needs.
42
Page 43
SAFETY WARNINGS AND CERTIFICATIONS
CAUTION
RISK OF ELECTRIC SHOCK DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK
DO NOT REMOVE COVER (OR BACK)
NO USER-SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED PERSONNEL
This product conforms with the essential
requirements of the following European Union
Directives: 89/336/EEC, 92/31/EEC, 93/68/
EED, and 2004/108/EC Electromagnetic
Compatibility Directives.
& Specifications
5. Warranty, Safety
4. Troubleshooting
3. Optional
Accessories
Lightspeed Technologies launched a formal
product recycle program in Europe that
complies with the European Union Directive
2002/96/EC on Waste Electrical and Electronic
Equipment (“WEEE Directive”). Please visit our
website at www.Lightspeed-tek.com for more
information.
This product is manufactured using lead-free
processes and is free of other materials
harmful to the environment. It conforms to the
most stringent new European guidelines for
consumer products (RoHS).
1. Overview2. Setup & Use
43
Page 44
& Specifications
5. Warranty, Safety
4. Troubleshooting
OVERALL SPECIFICATIONS
Power Output12 W per channel (72 W total)
Amplier Frequency Response
Carrier Frequencies (IR)
60 Hz to 20 kHz ±3 dB
2.06/2.54; 3.2/3.7 MHz
Signal-to-Noise Ratio> 73 dB
Dynamic Range> 73 dB
Maximum Deviation
> 70 dB
AMPLIFIER SPECIFICATIONS
Receiver TypeSuperheterodyne
Receiver Sensitivity6 µV for 60 dB S/N
Image and Spurious Rejection> 70 dB
Dimensions (W x D x H)8.6” x 6.8” x 2.2”
Weight2.75 lbs.
3. Optional
Accessories
1. Overview2. Setup & Use
TRANSMITTER SPECIFICATIONS
REDMIKE and REDMIKE VC
Audio Distortion< 1 %
Built-in MicrophoneUnidirectional Electret
Battery Power (1-year warranty)1 AA NiMH Rechargeable
Sensing Battery
Audio Input3.5 mm
Dimensions (W x D x H)0.9” x 1.0” x 3.5”
Weight2.1 oz.
LT-71 LightMic
Audio Distortion< 1 %
Built-in MicrophoneUnidirectional Electret
Battery Power (1-year warranty)2 AA NiMH Rechargeable
Audio InputsMic Level 3.5 mm, Line Level 3.5 mm
Dimensions (W x D x H)1.375” x .75” x 4.625”
Weight3.7 oz.
REDMIKE Share Handheld Microphone
Audio distortion<1%
Built-in MicrophoneUnidirectional Electret
Battery Power (1-year warranty)2 AA NiMH Rechargeable Battery
Pack
Audio Input3.5 mm
Dimensions (W x D x H)8.25” x 1.3” x 1.3”
Weight7.9 oz
ISR SENSOR SPECIFICATIONS
Operating RangeUp to 1600 square feet
Cable50 ft., Plenum-rated Cat 5e
MountingCeiling clip/Wall bracket
Dimensions (W x D x H)9.4” x 1.4” x 5.2”
Weight14.3 oz.