Niles IRZ6+ INTELLIPAD User manual

The IRZ6+ is a unique multi-zone IR
Main System Unit. In many ways it
is as if six IR Repeater Systems are
combined. The IRZ6+ controls
which of your audio/video compo-
nents will receive IR commands
from a remote sensor/keypad. Via
it’s configuration switches you may
control a particular component
from only one sensor/keypad or
you may choose to control a com-
ponent from any combination of
remote sensor/keypads throughout
the system.
This enables you to use multiple
identical preamps/receivers to cre-
ate a multiple-zone audio system
using identical IR commands with-
out any conflicts between users.
Each preamp/receiver with a
switched AC outlet can be equiped
with a 12v DC wall adapter. The
wall adapter plugs into the appropi-
ate status feedback signal to the
sensor/keypad for that zone only.
Additionally, IR commands to a
common source (e.g. a CD chang-
er) can be routed from any or all of
the zones.
The IRZ-6+ is one of several ele-
ments that make up an infrared
extender system:
1. IR Sensors receive IR com-
mands from hand-held remote
controls and relay the commands
to the IR Main System Unit via a 2-
conductor shielded cable.
Generally, sensors are placed so
that you can easily and naturally
point your remote control directly
at them. Niles offers an array of eas-
ily concealable sensors: wall-mount,
ceiling-mount, surface-mount and
table-top. IR sensors are the “eyes”
of the system.
2. Keypads memorize IR commands
from hand-held remote controls and
reissue the commands to the IR
Main System Unit via a 2-conductor
shielded cable. Generally, keypads
are placed so that they are conve-
nient to doorways, telephones etc.
Keypads give you a remote control
you cannot misplace.
3. The IR Main System Unit pro-
vides a connection hub for the IR
sensors and the IR flashers and is
generally located near the A/V com-
ponents. The IR Main System Unit’s
level controls and LED indicators
enable you to configure, calibrate
and troubleshoot an IR extender
system. The Main System Unit is the
“heart” of an IR extender system.
4. IR Expansion Units enable you to
expand the number of sensor/key-
pads a Main System Unit will support.
5. Infrared Flashers transmit the
infrared signals from the IR Main
System Unit to your A/V compo-
nents. Niles manufactures flooding
flashers (model IRC-1) and miniature
“pin-point” flashers (model IRC-2).
The miniature “pin-point flasher is
the appropriate flasher to use with
the IRZ6+ since it incorporates a
blocking cover which prevents IR
commands from reaching other
components.
BLENDING HIGH FIDELITY AND ARCHITECTURE
®
IRZ6+INTELLIPAD®READY
INFRARED EXTENDER SYSTEM—
ZONABLE IR MAIN SYSTEM UNIT
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DATA
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FLASHER
CONFIGURATION
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DATA
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MODEL IRZ6
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DEDICATED CONFIGURED
FLASHERS
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STATUS6
STATUS5
STATUS4
STATUS3
STATUS2
STATUS1
FLASHER LEVEL IR
+12VDC
POWER
Niles Audio Corporation 12331 S.W. 130 Street Miami, Florida 33186 Tel: [phone] Fax: [phone]
©1999 Niles Audio Corporation. All rights reserved. Because Niles constantly strives to improve the quality of its products, Niles reserves the right to
change product specifications without notice. Niles, the Niles logo, IntelliPad and Blending High Fidelity and Architecture are registered trademarks of
Niles Audio Corporation. Decora is a registered trademark of Leviton Manufacturing Company. Printed in USA 11/95 DS00158B
Introduction
®
®
Niles Audio Corporation
www.nilesaudio.com

The IRZ6+ offers a number of
improvements over other IR Extender
Main System Units:
• Universal system—compatible with
virtually all brands of A/V equip-
ment and remote controls (the
only exceptions are those brands
using carrier frequencies higher
than 64kHz).
• Built-in “Status” generator for each
of the six zones broadcasts the
amplifier “on/off” power status over
existing IR wiring to provide power
status display when used with other
Niles products like the IntelliPad that
feature status display LED’s.
• Allows the creation of as many as 6
independent zones, and among
those zones supports as many as
16 local and/or central sources (in
four configurations). A simple addi-
tion (the XRP6+ IR Expansion Unit)
provides IR control for zones con-
taining multiple rooms.
• Accommodates 6 IR sensors and
keypads. Provides for 10 IR flasher
outputs. Six flasher outputs are
DEDICATED; the remaining 4 are
ASSIGNABLE via DIP switches to
any or all of the 6 sensors. A screw-
pot adjustment labeled ADJUST
permits varying the level of each
flasher output. This prevents com-
ponents from being overloaded by
too much IR.
• IR DATA OUT connector with corre-
sponding assignable DIP switches is
provided for use with Niles prod-
ucts such as the RSL-6 and RVL-6.
• A supplied 110v-12v DC adapter
powers the IRZ6+.
• Red "Power" L.E.D. enables you to
test for proper power supply opera-
tion and shorts between + (posi-
tive) and GND (ground) on your
sensor connections.
• Green "IR" Test L.E.D. enables you
to test for proper operation, interfer-
ence, and for shorts between + and
DATA on your sensor connections.
•Screw connectors simplify installation.
•Printed circuit board design assures
high reliability.
•Two year parts and labor warranty.
• Proudly made in the USA.
Features and Benefits
In an IRZ6+ system, each zone uses
an IR-controlled AM/FM receiver
which operates independently.
(Using multiple AM/FM receivers
rather than a single central tuner
allows each zone to select its own
radio station.) Typically, you place the
receivers in a central location. The
IRZ6+ can be tucked away out of
sight near the receivers, but should
remain accessible for upgrading or
changing its configuration.
Install IR sensors/keypads in an
appropriate location in each zone.
Use an individual home-run of 2-
conductor shielded cable for each IR
sensor/keypad — West Penn D-291
or equivalent (IR cable of this type
may be purchased from Niles).
An IR command from any
sensor/keypad is routed to a corre-
sponding DEDICATED flasher output
which feeds that zone’s receiver. The
IRZ6+ prevents IR conflicts by rout-
ing the IR commands from each
zone directly to the proper receiver.
However, if identical makes and
models of receivers are used (a likely
situation), the installer must specify
the Niles IRC-2 micro flashers. The
IRC-2’s attach directly over each
receiver’s IR sensor window and fea-
ture a blocking “cover” which pre-
vents IR from “leaking out” to a
neighboring receiver.
For control of source components,
the IRZ6+ provides 4 configurable
flasher outputs. For example, in a
simple six zone system with a CD
player, an IRC-2 MicroFlasher is
attached to the CD player IR sensor
window and a blocking cover is
installed. The flasher is connected to
one of the configurable flasher out-
puts. The configuration switches for
that output are all set to the ON
position. See figure
Installation Considerations
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ABCD
DATA
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SENSORS
FLASHER
CONFIGURATION
ON➡ON ➡ON ➡ ON➡ON ➡
DATA
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MODEL IRZ6
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DEDICATED CONFIGURED
FLASHERS
+ - + - + - + - + - + - + - + - + - + -
STATUS 6
STATUS 5
STATUS 4
STATUS 3
STATUS 2
STATUS 1
FLASHER LEVEL IR
+12V DC
POWER
Flasher Configuration
switches: Flasher out-
puts A-D are individually
assignable to accept IR
signals from any or all of
the 6 zones.
Powered by a 12v DC
Adapter (Niles Part#
XF0019) supplied with
unit. Do not substitute
other adapters.
Individual level controls
to adjust the output
power of each flasher. for
maximum output, turn
controls fully clockwise
(Refer to the selection tit-
tled “Operation” for more
information.
Individual status input
jacks for each zone
enables the IRZ6+ to
broadcast status feed-
back. Connect a 12v DC
power supply of at least
200 ma output to the
switched AC outlet on
the rear of each zone
preamp/receiver. LED indicator lights
when receiving a com-
mand from any IR sen-
sor. If this LED fails to
light, or stays lit, a prob-
lem is indicated - per-
haps electrical interfer-
ence, or excessive sun-
light hitting a sensor.
Refer to the Niles “IR
Troubleshooting Guide”
for more information.
Individual outputs for 10 IR Flashers - 6 dedicated and 4 assignable
via dip switches to any or all of the 6 sensors. High speed mosfet
output circuitry ensures distortion-free IR transmission. To connect
more than one flasher to a single flasher output, refer to figure 4.
Individual inputs for 6 IR sensors - one for
each zone. All remote sensors must be home-
run using 2- conductor shielded cable. Do not
wire the sensors in a “daisy-chain” or connect
more than one sensor to a single input. Use
the XRP6+ IR Expansion Unit if connecting
multiply sensors within a zone.
Figure 3
IRZ6+ Components
and Features
Feature Description
Figure 4
A Six Zone Installation Connection Diagram for the IRZ6+
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DATA
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MODEL IRZ6
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DEDICATED CONFIGURED
FLASHERS
+ - + - + - + - + - + - + - + - + - + -
STATUS6
STATUS5
STATUS4
STATUS3
STATUS2
STATUS1
FLASHER LEVEL IR
+12VDC
POWER
12V DC Adapter
Zone 6 Receiver
Zone 5 Receiver
Zone 4 Receiver
Zone 3 Receiver
Zone 2 Receiver
Zone 1 Receiver
IRZ6+
CD Player
Zone 1
Sensors and Keypads
Zone 3
Zone 5
Zone 6
Zone 4
Zone 2

STEP
1. Connect and test the power sup-
ply. If it tests OK, unplug the con-
nector from the power socket and
proceed.
2. Connect the first Sensor/ Keypad
cable to either one of the Sensor
inputs.
3. Test for shorts and interference.
4. Connect the flashers to the flash-
er outputs. If you need to extend
the wire, use a 2-conductor 16
gauge or larger (See Tech Tip on
page 6).
DESCRIPTION
A) Plug the supplied12v DC power supply into an unswitched 120v AC outlet.
B) Plug the connector into the socket marked “Power” on the IRZ6+.
C) If the Power LED does not light, test the unswitched 120v AC outlet with
another appliance. If the outlet tests OK, you have a defective power supply
which must be replaced for you to continue.
A) Strip 1/4” of insulation from the wire ends of the cable.
B) Attach the exposed wire ends to the appropriate connector. Be careful to
prevent a filament of wire from shorting out two connectors. Red = +12v
Bare = GND Black = DATA
A) Reconnect the power supply. If the Power LED lights and the IR Test LED
stays off, unplug the connector from the power socket and proceed to Step 4.
The following LED conditions show a fault:
• If Power LED is Off there is a short between +12v and GND
• If IR Test LED is On or Flickers there is a short between DATA and GND or
Interference is present.
Before you proceed to Step 4 consult the Troubleshooting Section
DEDICATED FLASHER OUTPUTS
Each of the six dedicated flasher outputs receives IR commands from only the
corresponding Sensor/ Keypad input. It is critical that the IRC-2 is installed
with the blocking cover fully enclosing the flasher and the A/V component’s
sensor window.
CONFIGURABLE FLASHER OUTPUTS
Each of the four configurable flasher outputs receive IR commands from the
Sensor/Keypads selected via the Configuration DIP switches.
Select the zone Sensor/Keypad or combination of zones by moving the cor-
responding switch to the right (to the “on” position). If all of the DIP switch-
es for a flasher are set to the off position, that IR flasher will not work.
If all of the DIP switches are set to the on position, that IR flasher will repeat IR
commands from all of the zones.
Route the connecting 2-conductor wire to the IR Main System Unit. Connect
the ends of the wire to the corresponding positive and negative terminals
labeled “Flasher” on the IRZ6+.
BE SURE TO OBSERVE PROPER POLARI-
TY WHEN CONNECTING OR EXTEND-
ING THE FLASHER WIRE.
IRC-1: the wire lead marked with a
gray stripe is negative (-); the
unmarked lead is positive (+).
IRC-2: the silver colored wire lead is
negative (-); the copper colored wire
lead is positive (+).
Before you begin, make sure that the sensor/keypad
cables, the flasher cables, the status 12v DC wall adapter
cables and the 12v DC power supply cable will all reach
the proposed location of the IRZ6+. Mark the cables
with labels describing where the cable originates (rather
than which terminal on the IRZ6+ it should connect to).
For proper installation, follow the steps outlined in the cor-
rect order. If you discover a fault in the course of installa-
tion, go on to the Trouble-shooting Guide before continu-
ing with the next installation step.
Installation
Expanding the IRZ6+
You can create zones with multiple speaker locations by connecting a Niles speaker selector or impedance-matching
unit to that zone’s receiver. Niles volume controls can then be located in each room.
You can also equip a zone’s additional rooms with IR sensors using the XRP-6+ IR Expansion Unit. The XRP-6+ con-
nects to a sensor input on the IRZ6+ and in turn creates 6 more sensor inputs for use in rooms within that zone.
Installation Considerations continued
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DATA
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POWER
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DATA
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SENSORS
FLASHER
CONFIGURATION
ON➡ON➡ON➡ ON➡ON➡
DATA
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DEDICATED CONFIGURED
FLASHERS
+ - + - + - + - + - + - + - + - + - + -
STATUS 6
STATUS 5
STATUS 4
STATUS 3
STATUS 2
STATUS 1
FLASHER LEVEL IR
+12V DC
POWER
IR Sensor Wiring
Configuration
1 = +12v (RED)
2 = GND (SHIELD)
3 = DATA (BLACK)
12v DC
Wall Adapter
plugged into an
unswitched outlet.
12v DC
Wall Adapter
plugged into an
unswitched outlet.
XRP6+ IR Expansion Unit
IRZ6+
Zonable IR Main System Unit
To additional XRP6+ Expansion Units or
to IR sensors/keypads.
2 conductor shielded cable
IR Sensor
IR Sensor IR Sensor IR Sensor
KeypadKeypad Keypad Keypad
Keypad Keypad Keypad
Note: You can continue to add as many
XRP6+ expansion units as your system
requires.There is no limit.
Note: Each IR sensor/
keypad input can con-
nect to one IR sensor
and a keypad daisy
chained together.
A Two Zone IRZ6+ System
In this example, a home theater receiver and a whole house receiver create a listening system where the home theater
can be used to listen to video or audio sources in surround sound, while simultaneously someone else can listen in the
rest of the house to a different. radio station or compact disc.
The system has only one VCR, but the VCR can be controlled from all zones.
To House Speakers
House Receiver
Home Theater
Receiver
House CD Player
Home Theater CD Player
Global VCR
Home Theater
Sensor
House Sensors
Correct Configuration
Correct Configuration

1) Test Remote Control
Verify that the remote control works
by operating the equipment directly.
If the remote does not operate your
system directly, replace the batteries
of the remote control. Replace the
remote control if necessary.
2) Flasher Positioning
Flashers operate line-of-sight; be sure
they are unobstructed and aimed at
the front panel sensor windows of
your components.
3) 12v DC Power Supply
Test that the red IRZ6+ power LED is
on when the wall adapter is plugged
into an unswitched AC outlet.
• Power LED On: Go to Step 13
• Power LED Off: Go to Step 4
4) Disconnect Sensors
If the power LED does not light, dis-
connect all sensors and retest the
power supply.
• Power LED On: Go to Step 6
• Power LED Off: Go to Step 5
5) Replace Power Supply
Either your power supply or your
IRZ6+ is defective. If you have anoth-
er 12v DC power supply, first check
that it has the same polarity (+ on
the tip, GND on the sleeve). Plug the
new power supply in and observe
the Power LED.
• Power LED On: Retest System per
Testing the IR System section on
previous page
• Power LED Off: Return IRZ6+ to
your local Niles dealer for testing
6) Test Sensor Input 1
Reconnect one of the sensor cables.
Re-test; plug the power supply back
in and observe the Power LED.
• Power LED On: Go to Step 7
• Power LED Off: Go to Step 8
7) Test Sensor Input 2
A) If you DO NOT have a second
sensor/keypad, Go to Step 12.
B) If you DO have another sensor/
keypad, connect it to the second
sensor input and re-test.
• Power LED On: Go to Step 12
• Power LED Off: Go to Step 8
8) Short between +12v (positive)
and GND (ground).
Examine the connectors for a hair-
like filament of wire between any of
the contacts at the IRZ6+ and at the
sensor or keypad.Then retest.
• Power LED On: Go to Step 12
• Power LED Off: Go to Step 9
9) Test the Cable for Shorts
Disconnect the cable at both ends
(at the sensor and at the IRZ6+) and
test it for shorts. Use an ohm meter
or electrical continuity checker. You
should read an open (Infinite Ohms)
between Red and Bare, Red and
Black or Bare and Black.
• Short in Cable: Replace cable
• Cable tests OK: Go to Step 10
10) Replace the IRZ6+
If you have another IRZ6+, replace
the one in the system and retest, if
not go to Step 11.
11) Replace the Sensor or Keypad
If you have another Sensor or
Keypad, exchange it and retest the
system, otherwise return the IRZ6+
and the sensor/keypad(s) to your
local Niles dealer for testing.
12) System suddenly seems to be
OK again.
The connections were poor and by
touching and inspecting them you
have changed their condition. Jiggle
and tug on the wires and recheck the
connections. If they all seem secure,
retest the entire system per the
Troubleshooting Guidelines.
13) IR LED without any IR input.
Observe the green IR Test LED on the
IRZ6+ with the power supply
plugged in and all sensors and flash-
ers connected.
• IR Test LED is On or is Flickering:
Go to Step 32
• IR Test LED is Off: Go to Step 14
14) IR LED with IR input.
Have someone watch the green IR
LED on the IRZ6+ while you aim a
remote control at a remote sensor
and press a button.
• IR Test LED Flashes: Go to Step 15
• IR Test LED Off: Go to Step 23
15) Flasher Connections
Verify the polarity of the flasher con-
nections. Flashers must be connected
according to Installation Steps 4
and 5. Examine the connectors for a
ny hair-like filaments of wire between
any of the contacts. Retest the sys-
tem per the steps outlined in the pre-
vious section titled Testing the IR
System
• Good Operation: Congratulations!
• Poor Operation: Go to Step 16
16) Flasher Output Too High
Some audio/video component’s
sensors are overloaded by too
strong a command from the
flasher. Connect the flasher(s) to the
variable output of the IRZ6+ and use
a 1/8” slotted screwdriver to reduce
the output level to minimum
(counter-clockwise). Retest the sys-
tem per the steps outlined in the pre-
vious section titled Testing the IR
System
• Poor Operation: Move the flasher
so that it is farther away from
the sensor window or off to the
side of the sensor window.
Retest the system.
• Poor Operation: Start raising the
level (a quarter turn clockwise each
time) and retesting until level is
back to full.
• Poor Operation Continues: Go to
Step 17
17) Test Flashers.
A) If you have only ONE FLASHER,
reconnect it to the other flasher out-
put. Retest the system according to
the guidelines on page 11.
• Good Operation: Congratulations!
• Poor Operation: Go to Step 19
B) If you have MORE THAN ONE
FLASHER, disconnect all of them and
reconnect one flasher at a time. Test
for improved operation. Continue
testing until you have identified the
defective flasher. Test all of your
flashers.
• All flashers appear defective:
GotoStep18
• One flasher doesn’t work: Return
the defective flasher to your dealer
• All flashers now work:
Congratulations!
Troubleshooting Guide
There are four basic problems which
prevent proper operation of your
IRZ6+. In the order of probability, the
problems are as follows:
Configuration Switches
Recheck the configuration of each of
the flashers. Check that the desired
switches are fully locked into the
“on” or “off” position.
Bad Connections or Wiring
If the connections or wiring are
wrong, loose, shorted or open the
system will not operate properly. The
symptoms could include: Power LED
flickers or is off, IR Test LED is contin-
uously flickering or on without any
remote control use, intermittent
operation or no operation.
Steps (3) and(4) test your power
supply connections.
Steps (13) thru (14), (23) thru (25)
test your Sensor connections.
Steps (15) thru (18) test your Flasher
connections.
Steps (26) and (27) tests your cable
for shorts and opens.
Flasher Level is Too High
Many audio/video component’s
sensors are overloaded by receiv-
ing too strong of an IR command
from the flasher. Symptoms can
include: popping and clicking
sounds from the speakers when a
button is pressed on the remote con-
trol, poor IR receiving range, inter-
mittent operation or no operation.
Step (15) provides detailed instruc-
tions on setting the proper flasher
level.
Optical or Electromagnetic
Interference
Sunlight, reflections, neon signs and
other sources of infrared light or tele-
vision sets, light dimming controls
and other sources of electromagnetic
fields can induce noise and interfer-
ence into your IR extender system.
Symptoms can include: flashback
LED’s continuously flickering or on
without any remote control use,
poor range, intermittent operation or
no operation.
Steps (32) through (38) trou-
bleshoot interference problems.
Optical Feedback Loop
If you have an IR sensor in the same
room as a flasher, and you have
some low-level noise or interference,
an optical feedback loop can occur
which will interfere with proper oper-
ation. Symptoms can include: poor
range, intermittent operation or no
operation.
Steps (19)through (22) provide
instructions for eliminating optical
feedback loops.
Start from Step One
In your installation you may be faced
with a combination of the four prob-
lems or symptoms that are universal
to all of the problems. Rather than
trying to guess which problem you
have, use a process of elimination.
The Troubleshooting section is
designed to eliminate the most com-
mon problems first. If you start from
Step 1 and methodically check every-
thing you will find the problem in
much less time than the trou-
bleshooter who makes assumptions.
Troubleshooting Guidelines
Test your IR Extender system by fol-
lowing the three principal guidelines:
1. All components can be operat-
ed. Test all of your remote controls
for all of your equipment.
2. Operation is consistent. A good
test is to repeatedly step from Pause
to Play with your VCR, CD, Laser
Disc, or Tape player remote control.
Operation should be identical to
standing in front of the component
with the remote control pointed
directly at the sensor window.
3. Maximum Range between the
Remote Control and the Niles IR
Sensor is similar to the maximum
range between the Remote Control
and the A/V component’s IR sensor.
Typically a remote control with two
batteries will have a 15 to 20 foot
range and a remote with four batter-
ies will have a 20 to 30 foot range.
Testing the IR Extender System
Installation continued
STEP
5. Connect multiple flashers to a
single output by connecting in
series.
DESCRIPTION
Use crimp caps, wire nuts or solder to
connect the negative of one flasher to the
positive of the next flasher as shown to
create a “series” circuit.
IRC-1 Flooding Flasher
Allows a maximum of TWO in series.
IRC-2 MicroFlasher
Allows a maximum of FOUR in series.
+–
–+

31) Move the IRZ6+ to avoid
Electromagnetic Interference
It is possible that the IRZ6+ is receiv-
ing electromagnetic interference
from a nearby television or other
appliance. Move the IRZ6+ to anoth-
er location and reconnect the power
supply. Observe the IR Test LED.
• IR Test LED is ON or Flickering:
Go to Step 34
• IR Test LED is OFF: You have EMI
in your original location. Relocate
the IRZ6+ according to the guide-
lines found in the Installation
Considerations section.
32) Replace the IRZ6+
If you have another IRZ6+, exchange
it and retest the system, otherwise,
return the IRZ6+ to your local Niles
dealer for testing.
33) Test First Sensor Input
Connect one sensor/keypad to the
first Sensor Input. Observe the IR Test
LED.
• IR Test LED Off: Go to Step 36
• IR Test LED is On or Flickering:
Go to Step 37
34) Test Remaining Sensor Inputs
A) If you DO NOT have a second
sensor/keypad, Go to Step 12.
B) If you DO have another
sensor/keypad, connect it to the sec-
ond sensor input. Observe the IR Test
LED.
• IR Test LED is On or Flickering:
Go to Step 37
• IR Test LED Off: Go to Step 12
35) Test for Shorts
A) Verify that all connections at the
IRZ6+ are correct. Look for a hair-like
filament of wire between the two
contacts.
B) Verify that the sensor/keypad con-
nections are correct. Look for a hair-
like filament of wire between the two
contacts.
C) Disconnect the sensor/keypad
cable at both ends and test the cable
itself for shorts. Use an ohm meter or
electrical continuity checker. You
should read an open (Infinite Ohms)
between Red and Bare, Red and
Black or Bare and Black. After testing
all connections and cable, observe
the IR test LED.
• IR Test LED is On or Flickering:
Go to Step 38
• IR Test LED is Off: Congratulations
36) Test for Optical Interference
Reconnect the problematic
sensor/keypad to the IRZ6+. Cover
up the Sensor with a piece of card-
board (your hand will actually create
electromagnetic interference under
some conditions). Observe the IR test
LED.
• IR Test LED On or Flickering: Go
to 37
• IR Test LED Off: Go to 36
37) Optical Interference
Identify the source of the interfer-
ence. The most common sources of
optical interference are listed in the
order of their probability:
A) Sunlight. Reflections from win-
dows, mirrors, swimming pools,
shiny floors or objects.
B) Fluorescent light fixtures.
C) Neon signs.
D) A malfunctioning IR Remote
Control.
E) A malfunctioning Infrared Motion
Detector on your Security system.
Either re-orient the sensor or move
the source of interference. Niles
infrared sensors have built-in filters to
attenuate the effect of visible light. If
you add additional filtration you will
reduce the effectiveness of the sys-
tem with remote controls as well as
the interference.
If you are using the MS-1 or the MS-
2 miniature sensors consider
exchanging them for IRR-4D, TIR-1
or the CMS-3 ceiling sensor. These
three sensors have AGC circuits
which serve as automatic filters.
If you choose to attempt to filter an
MS-1 or MS-2, try a temporary mate-
rial (e.g. a single thickness of facial
tissue) and test whether filtration will
solve the interference and still give
acceptable range.
38) Electromagnetic Interference
(EMI)
Identify the source of the interfer-
ence. The most common sources of
electromagnetic interference are list-
ed in the order of their probability:
A) Televisions (particularly large
direct view sets).
B) Wall-mounted light dimmers or
variable speed controls for ceiling
fans. These controls emit more inter-
ference when turned down halfway.
They emit little or no interference
when turned up all the way (bright-
est position).
C) Fluorescent lights (the electronic
ballast sometimes emits EMI)
D) Large appliances (air-conditioners,
pumps, motors, compressors etc.)
E) AC line noise (noise brought into
the system via the wall outlet con-
nected to the IRZ6+) Identify the EMI
source by turning potential sources
on and off (or fully up and fully
down) and watching for any change
in the IR Test LED on your IRZ6+.
Once you have identified the source
of interference:
1) Move the sensor or the sensor
cable away from the EMI source
or move the source of the EMI
away from the sensor or the cable.
2) Shield the sensor with a metal J-
Box.
3) Connect the Sensor’s GND termi-
nal to true earth ground (if this
isn’t feasible use the IRZ6+ GND
terminal).
4) Place a ferrite ring around the
cable creating the interference.
Ferrite rings can be purchased
from an electronic supply store.
Troubleshooting Guide continued
18) Test Flasher Outputs
Reconnect one flasher to the second
flasher output of the IRZ6+. Test for
improved operation. Repeat Step 16
(adjust flasher level and position).
Test for improved operation.
• Good Operation: Congratulations!
• Poor Operation: Repeat this step
with another flasher. Retest.
• Poor Operation Continues: Go to
Step 19
19) Sensors in the Same Room as a
Flasher?
• If you have sensors in the same
room as a flasher: Go to Step 20
• If all sensors are in remote loca-
tions without flashers : Go to
Step 21
• If you have keypads only: Go to
Step 21
20) Optical Feedback Loop
If there is an IR sensor and an IR
flasher located within the same room
an "optical IR feedback loop" can
occur. Replace the IRC-1 Flooding
Flasher with an IRC-2 MicroFlasher
on the front panel sensor window of
each component. Place the enclosed
IR blocking cover over each of the
IRC-2 flashers. Retest the system.
• Good Operation: Congratulations!
• Poor Operation: Go to Step 16
(adjust Flasher Level and Position)
Retest system.
• Still Poor Operation: Go to Step
21
21) Replace IRZ6+ and Flasher(s)
Reconnect the system with a new
IRZ6+ and new flasher(s).
• Poor Operation Continues: Go to
Step 22
22) Interference that Does Not
Light the IR Test LED
Some very rare examples of interfer-
ence (both optical and electromag-
netic) do not light up the IR test LED
but do prevent proper operation. Go
to steps 36 and 37. Examine your
installation carefully for a source of
low-level optical or electromagnetic
interference.
23) Disconnect All Sensors and
Keypads and Test One Sensor
Input
Disconnect all Sensors and Keypads.
Reconnect one of the sensor cables
and retest the system (Have some-
one watch the green IR LED on the
IRZ6+ while you aim a remote con-
trol at a remote sensor and press a
button).
• IR Test LED Flashes: Go to Step 24
• IR Test LED Off: Go to Step 25
24) Test Second Sensor Input
A) If you DO NOT have a second
sensor/ Keypad, Go to Step 25.
B) If you DO have another
sensor/keypad, connect it to the sec-
ond sensor input. Retest the system
(Have someone watch the green IR
LED on the IRZ6+ while you aim a
remote control at a remote sensor
and press a button).
• IR Test LED Flashes: Go to Step 12
• IR Test LED Off: Go to Step 25
25) Bad Connections at the IRZ6+
and/or at the Sensor/Keypad.
Verify that all connections are good
both at the IRZ6+ Sensor Inputs and
at the remote sensor/keypad. Check
that the jacket of each conductor has
been properly stripped and inserted
into the connector. Examine the con-
nectors for a hair-like filament of wire
between any of the contacts. Repair
as necessary. Retest the system (have
someone watch the green IR LED on
the IRZ6+ while you aim a remote
control at a remote sensor and press
a button).
• IR Test LED Flashes:
Congratulations!
• IR Test LED Off: Go to Step 26
26) Test Cable for Shorts
Disconnect the cable at both ends
(at the sensor and at the IRZ6+) and
test it for shorts. Use an ohm meter
or electrical continuity checker. You
should read an open (Infinite Ohms)
between Red and Bare, Red and
Black or Bare and Black. If you find a
short, replace or repair the cable as
necessary. Retest the system (Have
someone watch the green IR LED on
the IRZ6+ while you aim a remote
control at a remote sensor and press
a button).
• IR Test LED Flashes:
Congratulations!
• IR Test LED Off: Go to Step 27
27) Test Cable for Opens
At one end of the cable, twist the
exposed copper ends of the Red (+)
and the bare (GND) conductors
together. At the other end of the
cable, use an Ohm meter or continu-
ity checker to check for a break in the
cable. You should read a short (zero
ohms) between the exposed copper
ends of the Red (+) and the bare
(GND) conductors. Repeat this test
with the Red (+) and the Black
(DATA) conductors. If you find an
open, replace or repair the cable as
necessary. Retest the system (have
someone watch the green IR LED on
the IRZ6+ while you aim a remote
control at a remote sensor and press
a button).
• IR Test LED Flashes:
Congratulations!
• IR Test LED Off: Go to Step 28
28) Connect Sensor to Other Input
of the IRZ6+
Disconnect the sensor and reconnect
it to another sensor input on the
IRZ6+. Retest the system (Have
someone watch the green IR LED on
the IRZ6+ while you aim a remote
control at a remote sensor and press
a button).
• IR Test LED Flashes:
Congratulations!
• IR Test LED Off: Go to Step 29
29) Replace the IRZ6+ and/or the
Sensor/Keypad
If you have another IRZ6+, sensor or
keypad, change it and retest the sys-
tem, otherwise return the IRZ6+ and
the sensor/keypads to your local
Niles dealer for testing.
30) Disconnect All Sensors and
Keypads
Observe the IR Test LED.
• IR Test LED is ON or Flickering:
Go to Step 33
• IR Test LED is OFF: Go to Step 35
Troubleshooting Guide continued

IR System
Compatible with virtually all brands
of remotes using carrier frequencies
between 18 and 100kHz. As of this
publication date, the only known
components using carrier frequen-
cies outside this range are Bang &
Olufsen components and 1996
model year Pioneer receivers using
the ISC remote control (e.g. VSX-
D704S).
Mounting
Free-standing box
Power Requirements
12 volts DC, wall-mount 110v AC to
12v DC adapter provided with unit
Wiring Requirements
2-conductor shielded cable for IR
sensors (West Penn CL2-291 or
equiv.) 2-conductor “zip cord” for
IR flashers
Unit Dimensions
6 13/16” Wide x 5 5/16” High x
3” Deep
Power Requirements
12v DC 800 mA power supply
(included).
Weight
1 lb.
Specifications
Proper Power Supply
You must connect a Niles 12v DC
wall adapter (Niles XF00019) into
the switched AC power outlet of
each of the preamp/receivers in
your system. Any 12v DC power
supply with a minimum of 100mA
current capacity can be substituted.
Extending the Cable
If you must extend the cable from
the wall adapter to the IRZ6+’s sta-
tus input jack be sure to maintain
correct polarity. The tip of the plug
should be positive (+) and the
sleeve negative (-). Any 16 gauge 2-
conductor cable can be used to
extend the power status cable up to
200 feet.
Checking the Power Supply
It is possible to check the status
power supply itself and any connec-
tions that were made to extend the
cable by inserting the status plug
into the Power jack on the IRZ6+. If
the Power LED lights the status
power supply and connections are
OK. If the Power LED does not light
check all connections and replace
the power supply if necessary. For
more details on incorporating the
IntelliPad please refer to the
IntelliPad’s users manual.
Power Status—Installation Considerations
DC Power
Supply Plugged
into a Switched
Outlet
Stereo Receiver
IR Flasher IRZ6+
Rear Panel
of the
IntelliPad
Loudspeaker Loudspeaker
DC Power
Supply
Plugged into
an Unswitched
AC Outlet
Figure 7
IntelliPad Basic Configuration
utilizing Status Feedback and
Speaker Relay Features
CONVERTING A LOW VOLTAGE CONTROL OUTPUT TO 12V DC
Many components, particularly surround processors and digital preampli-
fiers, provide a low voltage whenever the component is “on” rather than
in “standby”. For the IRZ6+ to correctly broadcast power status you must
install an optional Niles OTI-512 Opto-Isolated trigger interface. The OTI-
512 will convert 3-30 volts AC or DC to 12v DC.
Status LED
When the preamp/receiver is on, the
status LED is lit. The color of the
LED displays whether the local
speakers are on or muted.
GREEN - Local Speakers and the
Preamp/Receiver are on
RED - Local speakers are off, but
the system is on.
OFF - System is off.
Source Control Keys
Source Control keys
operate the selected
source.
Mute Key
Controls the IntelliPad’s built-in speaker mute feature.You can mute
local speakers by pressing the Mute key. To turn the local speakers
back on (or unmute), press either the Mute key or one of the six
Source Select keys.
Volume Key
This key raises
and lowers the
volume of your
main system
amplifier.
Source Select Keys
A single press of one of these keys
can:
1. Turn on the preamp/receiver if it
was off.
2. Change the input of your
preamp/receiver to the selected
source.
3. Change the function of the Source
Control Keys so that they operate
the selected source.
4. Display which source is selected
by backlighting the corresponding
Source Label.
5. Turn on the local speakers
Figure 6 The IntelliPad
By adding an IntelliPad
®
to your
IRZ6+ Infrared Extender System you
will add a remarkable level of conve-
nience to your system. The IntelliPad
is the world’s first programmable,
wall-mounted keypad system that
provides a unique LED power status
display and the convenience of true
one-touch remote control of com-
plex audio/video systems.
The IntelliPad’s status feedback fea-
ture eliminates the guesswork com-
mon with standard IR control sys-
tems. The power LED on the
IntelliPad indicates the On/Off condi-
tion of each of the system’s zone pre-
amp/receivers.
Built-in intelligence tracks the On/Off
condition each of the preamp/
receivers so the IntelliPads know when
it’s appropriate to issue the power
command, even when the user does-
n’t. The system maintains perfect syn-
chronization between the amplifier
and the user.
By combining an optional Niles 12v
DC power supply with your IRZ6+
you can send a status signal to an
IntelliPad without running any addi-
tional wiring. Built into the IRZ6+ is a
Niles Status Signal Generator. When
the IRZ6+ sees 12v DC at the status
jack it broadcasts a Status signal over
your existing IR sensor wires. Any
IntelliPad connected to one of your
sensor wires will display power status.
IMPORTANT: For the IntelliPad’s
status feedback feature to work,
the pre-amp/receiver controlling
your system should have a
switched AC outlet, a switched
outlet is a 120v AC outlet that
switches off, when the preamp/
receiver is off and switches on
when it is on.
Power Status—Introduction