Knoll DIR55 Installation Guide

DIR55 Digital Infrared System Connection Block
Specifications:

Specifications

Infrared carrier frequency: 30-60kHz
Transmission wire maximum length: 1000’ (300m)
Emitter wire requirements: two conductor, minimum 24 gauge
to 200’, 22 gauge up to 500’

20 gauge to 1000’
Receiver wire requirements: two conductor, minimum 24 gauge
to 200’, 22 gauge up to 500’

20 gauge to 1000’
Power requirements: Unregulated 12VDC, 200mA (up to
6 Knoll digital infrared receivers) or
500 mA (up to 12 Knoll digital
infrared receivers).
Dimensions: 2-1/2” W x 1-1/8” H x 2-3/4” D
(65 x 28 x 66mm).

Requires 12VDC power supply, emitter(s) and Knoll
digital infrared receiver(s).

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
tel [phone], fax [phone]

Made in Canada Knoll Systems All Rights Reserved

DIR55

Digital Infrared System
Connection Block Instructions v1.1

Warning: To be installed and/or used in accordance with

appropriate electrical codes and regulations.

Introduction: Thank you for your purchase of a Knoll DIR55

digital connection block. This connection block is designed to be
used with up to twelve Knoll digital infrared receivers and is not
compatible with other infrared receivers or targets. Up to four
single and/or dual infrared emitters can be connected to the
DIR55. A 12 VDC unregulated power supply such as the Knoll
PS1202 (200 mA) or PS1205 (500 mA) is required to power the
digital infrared system.

Features:

• Small tabletop size with black color enclosure.

• Digital processor included for connection to up to four

single and/or dual emitters.

• Will relay almost all remote control types (except some

B & O and Pioneer Elite models).

• Up to 12 Knoll digital infrared receivers can be connected
to the DIR55 connection block.

• Requires very little power. Suggest using 12 vdc power
supply PS1202 (up to 6 Knoll digital infrared receivers)
or PS1205 (up to 12 Knoll digital infrared receivers).

Installation Tips

1. Follow all local electrical & building code requirements.

2. The DIR55 is usually shelf or tabletop mounted near the
source equipment (receiver, CD player etc.). The system
requires up to 12 Knoll digital infrared receivers (can be mixed
or matched), up to four single or dual emitters, an unregulated
12 VDC power supply and this DIR55 connection block.

3. The two conductor emitter wires can be extended up to
1000’. 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’.

4. The three conductor wires to the receivers can be extended
up to 1000’. 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’.

5. Plug in the single or dual emitter(s) into any of the four 3.5
mm jack ports. If you are going to extend the emitter wire,
carefully observe polarity.

6. Connect the up to twelve Knoll digital infrared receivers into
the detachable three-position connector with the wires in
parallel. Again polarity is very important.

7. Plug in the PS1202 or other unregulated 12 VDC power
supply and the digital infrared system should be ready to go.

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 digital infrared system to see if it is working
properly. If it works only from a very close range or it does not
work at all, first mark where the pot adjustment is on the DIR55
blue color pot on the rear of the DIR55. This is so you can reset
it to that starting point again. Try adjusting the pot on the
connection block very slightly left and right as you are testing
the receiver with the remote control. This may require two
people. Adjust it until the maximum distance from the remote
control to the Knoll digital infrared receiver is achieved. This
should correct for the problem. If it still does not work properly,
please call Knoll Systems 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.

Em itter p or ts

12 VDC

Adjust
pot

Connect to
IR Receiv er s