Xantech 28ADJ Installation Instructions

MODEL 

28ADJ 

Adjustable Attenuator — 10k

Ω

INSTALLATION INSTRUCTIONS 

DESCRIPTION 

The 28ADJ Adjustable Emitter Attenuator is an in-line device that connects 

between a connecting block and an IR emitter. Featuring a flexible Short (0 

Ohm) to 10kOhm attenuation selection, the 28ADJ can adjust an emitter’s 

output strength to improve complex IR system compatibility. A plug-and-

use connector makes installation fast and quick.  

INSTALLATION 

• 

Turn the adjustment clockwise, fully. This will set the attenuation to 

zero which is exactly how the emitter will perform without a 28ADJ 

attached. 

• 

Connect the 28ADJ to the Emitter output port on the connecting block. 

• 

Next, connect the Emitter to the 28ADJ and place the Emitter over the 

source equipment’s control eye. In some cases it may be difficult to 

find the location of the IR sensor on the component. Consult the 

owner’s manual of the unit, or the manufacturer, for the exact IR 

sensor window location. 

• 

Direct a remote control towards the IR receiver. Be sure the IR 

system has power and an IR receiver connected to the connecting 

block.  

• 

Now slowly attenuate the emitter’s output strength by turning the 

adjustment counter-clockwise. This will reduce IR emitter strength. 

While turning the adjustment, use a remote control until it the 

commands sent can control the equipment.  

Full CW 

Middle 

Full CCW 

~ 0 Ohm (Short) 

~ 5kOhm 

~ 10kOhm 

Limited Warranty 

Xantech® warrants its products to be free of defects in materials or 

workmanship. This is a Limited Lifetime warranty from the date of purchase 

by the original consumer. Any products returned to Xantech and found to 

be defective by Xantech within the warranty period will be repaired or 

replaced, at Xantech’s option, at no charge. Xantech 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. 

Xantech Corporation 

13100 Telfair Ave. 2F, Sylmar CA 91342 | Xantech.com 

Installation Instructions, 28ADJ © 2008 Xantech Corporation 

Document # 08905195C 

This document is copyright protected. No part of this manual may be 

copied or reproduced in any form without prior written consent from 

Xantech Corporation. Xantech Corporation shall not be liable for 

operational, technical, or editorial errors/omissions made in this document.