Xantech 291-80 Installation Instructions

IR Receivers & Modems

1

INSTALLATION INSTRUCTIONS

The 291-80 is a small shelf-top infrared repeater assembly.  It is a  CFL (compact fluorescent light) friendly

version of the 291 Hidden Link series. It is specifically designed to have great immunity to CFL type infrared

interference and to have exceptional IR reception range.  In addition, the 291-80 will operate in direct

sunlight!

The 291-80  is equipped with a 7-foot cable and 3.5

mm stereo mini plug, which is plugged directly into

the "IR RCVR" jack on the CB12 (included).  It can

also be plugged into the "AUX"  or "IR RCVR" jack

on other Xantech connecting blocks, such as mod-

els 789-44, CB-60 and 791-44.  The mini plug

provides quick installation where the connecting

block is within reach of the 7-foot cable — as when

installing the 291-80 in a cabinet where the con-

trolled equipment is behind closed doors.  How-

ever, the cable length can be easily increased to

accommodate any desired application.  See Fig. 4.

INSTALLATION

A typical system is shown in Fig. 1.  Refer to this

diagram when making connections:

In this system a 286M Dual Blink-IR Emitter  is shown connected to the

"OUT" jack.  A single emitter could also be used, such as the model

282M or 283M.  If expansion beyond two emitters is required, use a

Xantech 789-44, CB-60 or 791-44 Connecting Block in place of the

CB12.  Do not use the CB12 in this case.

Adjusting the IR Carrier Frequency

The 291-80 is factory set to an IR carrier repeat frequency of 38 kHz.

This will be correct for the majority of installations. However, some

manufacturer's components that you wish to control may use different

carrier frequencies (such as the RCA DSS receivers that use 56 kHz).  If such carrier frequencies fall within

the range of 32 kHz to 56 kHz, you can adjust the 291-80 to match them for best range performance.  The

adjustment can be made through a small opening on the rear panel.  See Fig. 2.

To adjust, proceed as  follows:

1. First, try the 291-80 in a repeater system.  If it works well with good range, 

do not make any

adjustments!

2. If it does not work or has poor range (less than 15 feet), determine the IR carrier frequency of the

product you wish to control.  Contact the manufacturer of the product, if necessary, to determine this

frequency.

3. Using a small blade type screwdriver (3/32" blade width max.), rotate the adjustment shaft until the slot

lines up with the desired frequency marking.  Refer to Fig. 2.

NOTE: The frequency markings shown in Fig. 2 are approximate only.  You may need to "fine tune"

the adjustment for best performance.

Full CW

32 kHz

Full CCW

56 kHz

38 kHz

48 kHz

42 kHz

291-80

Adjustment

Fig. 2

   IR Carrier Frequency Adjustment

Model 286M

 Dual Blink IR™

Mouse Emitter

(Not  Included)

7-Foot 3-

Conductor

Cable with

Quick Connect

Mini Plug

291-80

 IR Receiver

To 120 V AC

(Unswitched)

781RG

Power Supply

(Not  Included)

Hand Held

Remote

VCR

3-Conductor

Cable to IR

Receivers in

Other Rooms.

(Optional - See

Fig. 3)

Equipment

Mounted

Behind

Closed

Doors

OUT

VG

S

IR

RCVR

PWR

CB12

 Connecting Block

(Included)

Satellite Receiver

Fig. 1

  The 291-80 in a Typical IR Repeater

291-80

CFL FRIENDLY INFRARED RECEIVER