Knoll Systems IR-21-A Owners manual
IR21 Infrared Receiver Specifications:
Specifications
Infrared carrier frequency: 30-60kHz
Indoor reception range: 20-25 feet (6-8 meters)
Nominal reception angle: 50 degrees off axis
Maximum wire length: 1000’ (300m) or more with larger
gauge wire
Wire requirements: 3 conductors, minimum 24-gauge
to 200’; 22-gauge up to 500’;
20-gauge to 1000’
Power requirements: Unregulated 12VDC, 40mA
Dimensions:
1-3/4" x 4" x 1"
(45mm x 102mm x 26mm)
Requires 12VDC power supply, emitter(s) and IR54, or
IR55 connection block.
Warranty
Knoll Systems warrants its products sold in the USA and Canada by authorized
Knoll dealers to be free of defects in materials and workmanship. This warranty
extends for three full years from the date of purchase by the original consumer.
Any products returned to Knoll Systems and found to be defective by Knoll
Systems within the warranty period will be repaired or replaced at Knoll Systems
option, at no charge. Knoll Systems will not be responsible for the actual cost of
installation or removal of the product, nor for any incidental or consequential
damages. Some states do not allow the exclusion or limitation of incidental or
consequential damages, so the above limitation may not apply to you. This
warranty gives you specific legal rights. You may have additional legal rights
that vary from state-to-state.
Knoll Systems www.knollsystems.com
145 Tyee Drive Point Roberts, WA 98281
12140 Horseshoe Way, Richmond BC V7A 4V4
Telephone: (604) 272-4555, Fax: (604) 272-5595
Made in Canada Knoll Systems All Rights Reserved
IR21
J-box Infrared Receiver
Installation Instructions v1.2
Warning: To be installed and/or used in accordance with
appropriate electrical codes and regulations.
Introduction: Thank you for your purchase of a Knoll IR21
infrared receiver. This receiver features the ability to pick up a
remote control infrared signal and relay it on wires to another
location up to 1000’ (or more).
Features:
• Inwall junction box design
available in white, ivory, almond
and black colors.
• Will relay almost all remote
types (except some B & O
models).
• Can be connected with almost any
3-conductor wire including cat 5.
using PS1202 12 VDC (200 mA
for up to 5 IR21s.
• Up to 10 or IR10, IR21s and other
compatible models can be
connected in a single system.
• Connects with a three wire
connector or RJ45 via cat 5 wire
Installation Tips
1. Follow all local electrical & building code requirements.
2. The IR21 is usually wall mounted. It does not normally
require a junction box. For easy installation and to ensure
reliability, it is suggested that a PS1202 (200 mA) or PS1205
(500 mA) 12 VDC unregulated power supply, IR31 (single) or
IR34 (dual) emitters and one of the following: IR54 (decora
control
Sugge• Requires very little power.
)
st
System
power
on LED
IR
Receiver
Blue
talkback
LED
inwall style, 4 output) or IR55 (tabletop style, 4 output)
connection block, be used.
3. Wires can be solid or stranded, shielded or unshielded with a
minimum of 28-gauge for runs under 200’, 22-gauge for runs
under 500’ and 20-gauge for runs up to 1000’. Wires can be
looped from IR21 to IR21 or home run. Home runs generally
offer more reliability and future flexibility.
4. IR21s can be mixed and matched in larger systems with up
to 10 infrared receivers, such as the Knoll IR10 or IR22.
5. To wire the system together, connect the IR21 12V, GND
and SIG terminals to the corresponding IR54 or IR55 terminal.
Prepare the wire leads to and from the IR21 by stripping about
¼” of the insulation from each of the three leads. Twist the
strands tightly together so that they do not stick out of the
connector and cause a short circuit. Strictly observe polarity. If
you are connecting with the RJ45 connector you may need a
RJ45 paralleling strip to parallel connect the wires from multiple
IR receivers.
PS1202
IR21
Infrared
Receiver
RJ45
IR21
Infrared
Receiver
RJ45
IR55
12V
GND
SIG
Connection
Block
Note: IR21’s are
wired in parallel
12 V DC Power Supply
Receiver
IR31A
CD
IR34A
171
Dish
6. Next, plug the single or dual emitters into the IR54 or IR55
connection block.
7. Now, plug in the PS1202 (for up to five receivers) or PS1205
for five to ten receivers.
8. The infrared system is usually left plugged in all the time (to
an unswitched outlet) as it uses very little power.
9. Test the infrared system to see if it is working properly.
Bright sunlight and passive infrared security systems can lower
the distance that remote controls can work with an IR21
receiver. If you have any questions or concerns, please call and
ask for infrared technical support at 1 800 566 5579. The Help
Line is open from 7:30 a.m. to 5:00 p.m., Monday to Friday,
Pacific time.
RJ45
IR21
Infrared
Receiver
RJ45
System
power
on LED
IR
Receiver
Blue
talkback
LED
IR34A
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