IR CARRIER ADJUSTMENT

The 490-85 is factory set to an IR carrier repeat frequency of 39kHz. 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 RCA DSS satellite receivers that use 56kHz). If sure carrier frequencies fall within the range of 32kHz to 56kHz, you can adjust the 490-85 to match them for the best range performance. The adjustment can be made through the small opening on the rear.

To adjust, proceed as follows:

1.First, try the 490-85 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, rotate the adjustment shaft until the slot lines up with the desired frequency.

4.If you have products in the same IR system that have different IR carrier frequencies, you will have to adjust the 490-85 to a midway position. For example, some may operate at 38kHz and others at 56kHz. In this case, set the adjustment to approximately 47kHz, a midway position.

Note: Some products are more tolerant of compromised frequency settings that others. You may have to “fine tune” the adjustment to “favor” the least tolerant component for the best performance of all units in the system.

Clock-wise (CW)

Increase carrier frequency

Counter Clock-wise (CCW)

Decrease carrier frequency

490-85 CABLE CONNECTIONS

The 490-85 may also be used where the 7-foot lead is not long enough. In this case, simply cut off the mini plug, strip the leads and connect them to a 3-terminal block. For correct color identification of wires, refer to the following tables and diagrams:

PLUG

CABLE LEADS

RING

BLACK

TIP

WHITE

SLEEVE

RED

DESCRIPTION GROUND

IR OUTPUT +12V

490-85

Ring

 

 

 

 

Tip

WHITE

 

 

 

 

 

 

 

 

 

 

OUT

 

 

 

 

 

+12V

 

 

 

 

 

Sleeve

 

 

Insulators

GND

 

 

See Tables for

 

 

Mini Plug

Wire Color

7-Foot 3-Conductor Cable

(3-Conductor)

with Mini Plug removed

3-Conductor

Wire to

Controlled

Equipment

3-Terminal Block

 

 

08905105A

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Xantech 490-85 installation instructions IR Carrier Adjustment, Cable Connections, Plug Cable Leads
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490-85 specifications

The Xantech 490-85 is a sophisticated infrared (IR) distribution amplifier designed specifically for enhancing audio and video installation systems. Its well-engineered features cater to both residential and commercial settings, making it an essential component for integrators requiring high-performance signal distribution.

At the core of the Xantech 490-85 is its ability to expand IR control outputs. The device takes a single IR signal and distributes it to multiple devices, enabling seamless control of various components within a home theatre or multi-room setup. This versatility is ideal for users who need to control several AV devices from a centralized location without having to struggle with multiple remotes.

One of the standout features of the Xantech 490-85 is its ability to support up to eight output ports. This multiple output capability ensures that users can connect an extensive range of devices, from televisions and DVD players to cable boxes and streaming devices, all while maintaining consistent signal quality. The amplifier is built to minimize signal degradation, ensuring that the integrity of the IR commands remains intact, even over long distances.

The technology behind the Xantech 490-85 employs advanced signal boosting capabilities, which facilitate the transfer of IR signals over extended runs of cable. This means that users can expect robust and reliable operation, even in larger spaces where traditional systems might falter. The device also includes built-in short circuit protection, safeguarding the system from potential damage caused by improper connections.

Another characteristic that elevates the Xantech 490-85 is its ease of installation. The user-friendly design allows installers to set up the unit quickly and efficiently without extensive technical knowledge. The compact appearance ensures that the device can be discreetly integrated into existing systems without causing clutter.

In summary, the Xantech 490-85 stands out as a reliable and efficient IR distribution amplifier that enhances control capabilities within audio and video installations. Its multiple output options, advanced technologies, and straightforward installation make it a favored choice for professional integrators and enthusiasts alike. With this device, managing multiple AV components becomes a hassle-free experience, paving the way for a streamlined and enjoyable multimedia environment.
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