Couplers And Extenders; Usb Cable Extenders; Couplers; Extenders - SMART Board 4000 Series Installation Best Practices

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CHAPTER 6

CABLE ACCESSORIES

Couplers and extenders

A coupler is a connector with two receptacles (also called a female-to-female connection) used to

join two cables of the same type. Couplers can provide an easy way to connect two cables and

extend a cable run. However, couplers cause signal degradation and can become easily

disconnected. Use of a coupler will usually cause a cable to break industry signal standards due to

improper extension. SMART strongly advises against use of couplers because they increase the

risk of issues and poor performance of SMART products.

NOTE

Some locations may use wall plates for network and cable connections, and these wall plates

may have built-in couplers. If this is the case, test the connection to make sure it functions as

expected.

Use only active, externally-powered extenders and not bus-powered extenders (that is, an

extender that's powered by the device it's connected to).

IMPORTANT

SMART can not provide support for installations that use bus-powered extenders (with the

exception of extenders manufactured by SMART, such as the USB-XT or CAT5-XT-1100). Before

contacting SMART for assistance, replace any bus-powered extenders with a shorter, passive

(non-powered) cable and test the system again.

Improperly extended USB connections can cause a SMART product's touch features to behave

unexpectedly.

An active USB extension cable (USB-XT) can be used to extend the USB connection beyond the

length of the USB cable that was included with the SMART product, as shown below:

smarttech.com/kb/171035

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